Home > Products > Valid Products > AFD

000
FXUS66 KSGX 032032
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
132 PM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

VISIBLE SATELLITE SHOWS THAT STRATUS HAS CLEARED NICELY THIS
AFTERNOON...ALTHOUGH IT WAS A LITTLE SLOW TO DO SO. HE 12Z MIRAMAR
SOUNDING SHOWED A 7 DEG C MARINE LAYER INVERSION AT AROUND 2500
FEET...AND AIRCRAFT SOUNDINGS INDICATED MARINE LAYER DEPTH AT
AROUND 2600-3500 FEET ABOVE MSL.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 7.8 MB...COMPARED TO 6.8
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND IS CONTINUING...AS
TEMPERATURES ARE CURRENTLY ABOUT 3 TO 6 DEGREES LOWER THAN 24 HOURS
AGO FOR MOST LOCATIONS. FRIDAY LOOKS TO BE THE COOLEST DAY...WITH
DAY-TIME HIGHS REACHING 10 TO 20 DEGREES BELOW NORMAL ON FRIDAY.
THIS SHOULD ALSO CAUSE THE MARINE LAYER TO DEEPEN TO 4000-4500 FEET
ABOVE MSL BY LATE TONIGHT...WHICH WOULD RESULT IN LOW CLOUDS FILLING
THE COASTAL BASIN AGAIN AND ALSO REACHING INTO THE LOWER MOUNTAIN
SLOPES AND THROUGH THE PASSES. THE CLOUD LAYER MAY THICKEN UP ENOUGH
TO BRING SOME DRIZZLE AS WELL. FINALLY...THE STRONGER ONSHORE FLOW
WILL ALSO RESULT IN GUSTY SOUTHWEST TO WEST WINDS ALONG THE DESERT
SLOPES AND THROUGH AND BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE
AFTERNOON AND EVENING HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND
LOCALLY 55 MPH...WILL BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
032000Z...COAST/VALLEYS...SCT TO LOCALLY BKN CLOUDS WITH BASES 3000-
3500 FT MSL WILL THICKEN AFTER 00Z ALONG THE COASTAL STRIP AND
SPREAD INLAND OVERNIGHT WITH WIDESPREAD BASES 2500-3000 FT MSL AND
TOPS 4000-4500 FT MSL BY FRI MORNING. VIS WILL BE GENERALLY
UNRESTRICTED...EXCEPT ALONG THE HIGHER COASTAL TERRAIN AND FAR INLAND
ALONG THE LOWER COASTAL SLOPES AND FOOTHILLS WHERE THE TERRAIN MAY
BE OBSCURED AT TIMES. CLEARING MAY BE LIMITED ON FRI IN SOME
AREAS...BUT VFR CONDITIONS ARE EXPECTED MUCH OF THE DAY WITH BROKEN
CLOUD BASES LIFTING ABOVE 3000 FEET.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA FL150 AND UNRESTRICTED VIS
THROUGH FRI.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH TUESDAY.

&&

.BEACHES...
100 PM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET BY EARLY SUNDAY...WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUN EVENING. THE SURF WILL
REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND. A BEACH HAZARD STATEMENT WILL BE IN EFFECT BEGINNING MID
MORNING ON SATURDAY THROUGH TUESDAY.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...BEACH HAZARDS STATEMENT FROM SATURDAY MORNING THROUGH TUESDAY
     EVENING FOR ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY
     COASTAL AREAS.

PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD





000
FXUS66 KSGX 032032
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
132 PM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

VISIBLE SATELLITE SHOWS THAT STRATUS HAS CLEARED NICELY THIS
AFTERNOON...ALTHOUGH IT WAS A LITTLE SLOW TO DO SO. HE 12Z MIRAMAR
SOUNDING SHOWED A 7 DEG C MARINE LAYER INVERSION AT AROUND 2500
FEET...AND AIRCRAFT SOUNDINGS INDICATED MARINE LAYER DEPTH AT
AROUND 2600-3500 FEET ABOVE MSL.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 7.8 MB...COMPARED TO 6.8
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND IS CONTINUING...AS
TEMPERATURES ARE CURRENTLY ABOUT 3 TO 6 DEGREES LOWER THAN 24 HOURS
AGO FOR MOST LOCATIONS. FRIDAY LOOKS TO BE THE COOLEST DAY...WITH
DAY-TIME HIGHS REACHING 10 TO 20 DEGREES BELOW NORMAL ON FRIDAY.
THIS SHOULD ALSO CAUSE THE MARINE LAYER TO DEEPEN TO 4000-4500 FEET
ABOVE MSL BY LATE TONIGHT...WHICH WOULD RESULT IN LOW CLOUDS FILLING
THE COASTAL BASIN AGAIN AND ALSO REACHING INTO THE LOWER MOUNTAIN
SLOPES AND THROUGH THE PASSES. THE CLOUD LAYER MAY THICKEN UP ENOUGH
TO BRING SOME DRIZZLE AS WELL. FINALLY...THE STRONGER ONSHORE FLOW
WILL ALSO RESULT IN GUSTY SOUTHWEST TO WEST WINDS ALONG THE DESERT
SLOPES AND THROUGH AND BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE
AFTERNOON AND EVENING HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND
LOCALLY 55 MPH...WILL BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
032000Z...COAST/VALLEYS...SCT TO LOCALLY BKN CLOUDS WITH BASES 3000-
3500 FT MSL WILL THICKEN AFTER 00Z ALONG THE COASTAL STRIP AND
SPREAD INLAND OVERNIGHT WITH WIDESPREAD BASES 2500-3000 FT MSL AND
TOPS 4000-4500 FT MSL BY FRI MORNING. VIS WILL BE GENERALLY
UNRESTRICTED...EXCEPT ALONG THE HIGHER COASTAL TERRAIN AND FAR INLAND
ALONG THE LOWER COASTAL SLOPES AND FOOTHILLS WHERE THE TERRAIN MAY
BE OBSCURED AT TIMES. CLEARING MAY BE LIMITED ON FRI IN SOME
AREAS...BUT VFR CONDITIONS ARE EXPECTED MUCH OF THE DAY WITH BROKEN
CLOUD BASES LIFTING ABOVE 3000 FEET.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA FL150 AND UNRESTRICTED VIS
THROUGH FRI.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH TUESDAY.

&&

.BEACHES...
100 PM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET BY EARLY SUNDAY...WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUN EVENING. THE SURF WILL
REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND. A BEACH HAZARD STATEMENT WILL BE IN EFFECT BEGINNING MID
MORNING ON SATURDAY THROUGH TUESDAY.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...BEACH HAZARDS STATEMENT FROM SATURDAY MORNING THROUGH TUESDAY
     EVENING FOR ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY
     COASTAL AREAS.

PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD




000
FXUS66 KSGX 032032
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
132 PM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

VISIBLE SATELLITE SHOWS THAT STRATUS HAS CLEARED NICELY THIS
AFTERNOON...ALTHOUGH IT WAS A LITTLE SLOW TO DO SO. HE 12Z MIRAMAR
SOUNDING SHOWED A 7 DEG C MARINE LAYER INVERSION AT AROUND 2500
FEET...AND AIRCRAFT SOUNDINGS INDICATED MARINE LAYER DEPTH AT
AROUND 2600-3500 FEET ABOVE MSL.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 7.8 MB...COMPARED TO 6.8
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND IS CONTINUING...AS
TEMPERATURES ARE CURRENTLY ABOUT 3 TO 6 DEGREES LOWER THAN 24 HOURS
AGO FOR MOST LOCATIONS. FRIDAY LOOKS TO BE THE COOLEST DAY...WITH
DAY-TIME HIGHS REACHING 10 TO 20 DEGREES BELOW NORMAL ON FRIDAY.
THIS SHOULD ALSO CAUSE THE MARINE LAYER TO DEEPEN TO 4000-4500 FEET
ABOVE MSL BY LATE TONIGHT...WHICH WOULD RESULT IN LOW CLOUDS FILLING
THE COASTAL BASIN AGAIN AND ALSO REACHING INTO THE LOWER MOUNTAIN
SLOPES AND THROUGH THE PASSES. THE CLOUD LAYER MAY THICKEN UP ENOUGH
TO BRING SOME DRIZZLE AS WELL. FINALLY...THE STRONGER ONSHORE FLOW
WILL ALSO RESULT IN GUSTY SOUTHWEST TO WEST WINDS ALONG THE DESERT
SLOPES AND THROUGH AND BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE
AFTERNOON AND EVENING HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND
LOCALLY 55 MPH...WILL BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
032000Z...COAST/VALLEYS...SCT TO LOCALLY BKN CLOUDS WITH BASES 3000-
3500 FT MSL WILL THICKEN AFTER 00Z ALONG THE COASTAL STRIP AND
SPREAD INLAND OVERNIGHT WITH WIDESPREAD BASES 2500-3000 FT MSL AND
TOPS 4000-4500 FT MSL BY FRI MORNING. VIS WILL BE GENERALLY
UNRESTRICTED...EXCEPT ALONG THE HIGHER COASTAL TERRAIN AND FAR INLAND
ALONG THE LOWER COASTAL SLOPES AND FOOTHILLS WHERE THE TERRAIN MAY
BE OBSCURED AT TIMES. CLEARING MAY BE LIMITED ON FRI IN SOME
AREAS...BUT VFR CONDITIONS ARE EXPECTED MUCH OF THE DAY WITH BROKEN
CLOUD BASES LIFTING ABOVE 3000 FEET.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA FL150 AND UNRESTRICTED VIS
THROUGH FRI.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH TUESDAY.

&&

.BEACHES...
100 PM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET BY EARLY SUNDAY...WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUN EVENING. THE SURF WILL
REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND. A BEACH HAZARD STATEMENT WILL BE IN EFFECT BEGINNING MID
MORNING ON SATURDAY THROUGH TUESDAY.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...BEACH HAZARDS STATEMENT FROM SATURDAY MORNING THROUGH TUESDAY
     EVENING FOR ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY
     COASTAL AREAS.

PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD





000
FXUS66 KSGX 032032
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
132 PM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

VISIBLE SATELLITE SHOWS THAT STRATUS HAS CLEARED NICELY THIS
AFTERNOON...ALTHOUGH IT WAS A LITTLE SLOW TO DO SO. HE 12Z MIRAMAR
SOUNDING SHOWED A 7 DEG C MARINE LAYER INVERSION AT AROUND 2500
FEET...AND AIRCRAFT SOUNDINGS INDICATED MARINE LAYER DEPTH AT
AROUND 2600-3500 FEET ABOVE MSL.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 7.8 MB...COMPARED TO 6.8
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND IS CONTINUING...AS
TEMPERATURES ARE CURRENTLY ABOUT 3 TO 6 DEGREES LOWER THAN 24 HOURS
AGO FOR MOST LOCATIONS. FRIDAY LOOKS TO BE THE COOLEST DAY...WITH
DAY-TIME HIGHS REACHING 10 TO 20 DEGREES BELOW NORMAL ON FRIDAY.
THIS SHOULD ALSO CAUSE THE MARINE LAYER TO DEEPEN TO 4000-4500 FEET
ABOVE MSL BY LATE TONIGHT...WHICH WOULD RESULT IN LOW CLOUDS FILLING
THE COASTAL BASIN AGAIN AND ALSO REACHING INTO THE LOWER MOUNTAIN
SLOPES AND THROUGH THE PASSES. THE CLOUD LAYER MAY THICKEN UP ENOUGH
TO BRING SOME DRIZZLE AS WELL. FINALLY...THE STRONGER ONSHORE FLOW
WILL ALSO RESULT IN GUSTY SOUTHWEST TO WEST WINDS ALONG THE DESERT
SLOPES AND THROUGH AND BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE
AFTERNOON AND EVENING HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND
LOCALLY 55 MPH...WILL BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
032000Z...COAST/VALLEYS...SCT TO LOCALLY BKN CLOUDS WITH BASES 3000-
3500 FT MSL WILL THICKEN AFTER 00Z ALONG THE COASTAL STRIP AND
SPREAD INLAND OVERNIGHT WITH WIDESPREAD BASES 2500-3000 FT MSL AND
TOPS 4000-4500 FT MSL BY FRI MORNING. VIS WILL BE GENERALLY
UNRESTRICTED...EXCEPT ALONG THE HIGHER COASTAL TERRAIN AND FAR INLAND
ALONG THE LOWER COASTAL SLOPES AND FOOTHILLS WHERE THE TERRAIN MAY
BE OBSCURED AT TIMES. CLEARING MAY BE LIMITED ON FRI IN SOME
AREAS...BUT VFR CONDITIONS ARE EXPECTED MUCH OF THE DAY WITH BROKEN
CLOUD BASES LIFTING ABOVE 3000 FEET.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA FL150 AND UNRESTRICTED VIS
THROUGH FRI.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH TUESDAY.

&&

.BEACHES...
100 PM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET BY EARLY SUNDAY...WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUN EVENING. THE SURF WILL
REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND. A BEACH HAZARD STATEMENT WILL BE IN EFFECT BEGINNING MID
MORNING ON SATURDAY THROUGH TUESDAY.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...BEACH HAZARDS STATEMENT FROM SATURDAY MORNING THROUGH TUESDAY
     EVENING FOR ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY
     COASTAL AREAS.

PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD




000
FXUS66 KSGX 031547
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
847 AM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

A DEEP MARINE LAYER IS IN PLACE ONCE AGAIN THIS MORNING...WITH
VISIBLE SATELLITE SHOWING BROKEN-TO-OVERCAST STRATUS FILLING THE
COASTAL BASIN. THE 12Z MIRAMAR SOUNDING SHOWED A 7 DEG C MARINE
LAYER INVERSION AT AROUND 2500 FEET...AND AIRCRAFT SOUNDINGS
INDICATED MARINE LAYER DEPTH AT AROUND 2600-3500 FEET ABOVE MSL. THE
CLOUD LAYER IS NOT VERY THICK...AT ONLY AROUND 500 FEET THICK.
HOWEVER...NOT A LOT OF CLEARING HAS TAKEN PLACE YET ON SATELLITE...
AND THE LOCAL WRF DOES TRY TO KEEP SOME SCATTERED LOW CLOUDS AROUND
THE COASTAL BASIN TODAY...SO LOW CLOUDS MAY NOT CLEAR AS NICELY AS
THEY DID YESTERDAY.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 6.7 MB...COMPARED TO 5.7
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND SHOULD CONTINUE
TODAY...AND INTO FRIDAY AS WELL...WITH DAY-TIME HIGHS REACHING 10 TO
20 DEGREES BELOW NORMAL ON FRIDAY. THIS SHOULD ALSO CAUSE THE MARINE
LAYER TO DEEPEN TO 4000-4500 FEET ABOVE MSL BY LATE TONIGHT...WHICH
WOULD RESULT IN LOW CLOUDS FILLING THE COASTAL BASIN AGAIN AND ALSO
REACHING INTO THE LOWER MOUNTAIN SLOPES AND THROUGH THE PASSES.
FINALLY...THE STRONGER ONSHORE FLOW WILL ALSO RESULT IN GUSTY
SOUTHWEST TO WEST WINDS ALONG THE DESERT SLOPES AND THROUGH AND
BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE AFTERNOON AND EVENING
HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND LOCALLY 55 MPH...WILL
BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
031510Z...COAST/VALLEYS...STRATUS LAYER WITH BASES 2500-3000 FT MSL
AND TOPS TO 3500 FT MSL BECOMING SCT-LOCALLY BKN 3000-3500 FT MSL
AFT 17Z THROUGH 19Z MOST AREAS WITH UNRESTRICTED VIS. STRATUS LAYER
BECOMING BKN-OVC 2500-3000 FT MSL ALONG THE COAST AGAIN AFT 00Z
THROUGH 04Z WITH TOPS 4000 FT MSL...SPREADING INLAND TO THE LOWER
COASTAL MOUNTAIN SLOPES...LOCALLY OBSCURING THE HIGHER TERRAIN
OVERNIGHT.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH TONIGHT.

&&

.MARINE...
800 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...
800 AM...A LONG PERIOD SOUTH-SOUTHWEST SWELL WILL BEGIN TO MOVE INTO
THE COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC.
SURF WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUNDAY EVENING. THE SURF
WILL REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD




000
FXUS66 KSGX 031547
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
847 AM PDT THU SEP 3 2015

.SYNOPSIS...
COOLING WILL CONTINUE THROUGH FRIDAY...WITH A DEEP MARINE LAYER
REMAINING IN PLACE...DUE TO A TROUGH OF LOW PRESSURE ALONG THE WEST
COAST. GUSTY WINDS IN THE MOUNTAINS AND DESERTS WILL OCCUR DURING
THE LATE AFTERNOONS AND EVENINGS TODAY AND FRIDAY. THE TROUGH WILL
WEAKEN...AND HIGH PRESSURE WILL SLOWLY BUILD ALOFT...RESULTING IN
WARMING AND LESS EXTENSIVE LOW CLOUDS THIS WEEKEND THROUGH MOST OF
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

A DEEP MARINE LAYER IS IN PLACE ONCE AGAIN THIS MORNING...WITH
VISIBLE SATELLITE SHOWING BROKEN-TO-OVERCAST STRATUS FILLING THE
COASTAL BASIN. THE 12Z MIRAMAR SOUNDING SHOWED A 7 DEG C MARINE
LAYER INVERSION AT AROUND 2500 FEET...AND AIRCRAFT SOUNDINGS
INDICATED MARINE LAYER DEPTH AT AROUND 2600-3500 FEET ABOVE MSL. THE
CLOUD LAYER IS NOT VERY THICK...AT ONLY AROUND 500 FEET THICK.
HOWEVER...NOT A LOT OF CLEARING HAS TAKEN PLACE YET ON SATELLITE...
AND THE LOCAL WRF DOES TRY TO KEEP SOME SCATTERED LOW CLOUDS AROUND
THE COASTAL BASIN TODAY...SO LOW CLOUDS MAY NOT CLEAR AS NICELY AS
THEY DID YESTERDAY.

WATER VAPOR IMAGERY SHOWS A LARGE LOW PRESSURE SYSTEM OVER BRITISH
COLUMBIA...WITH THE ASSOCIATED TROUGH ALONG THE WEST COAST AND
STRETCHING INTO SOUTHERN CALIFORNIA...WHILE A RIDGE REMAINS FAR TO
THE EAST OVER TEXAS. THIS TROUGH WILL MOVE SOUTH AND EAST THROUGH
LATE FRIDAY...RESULTING IN CONTINUED LOWER HEIGHTS ALOFT OVER OUR
AREA. ONSHORE FLOW IS STRENGTHENING AS WELL...WITH ONSHORE PRESSURE
GRADIENTS FROM SAN DIEGO TO LAS VEGAS UP TO 6.7 MB...COMPARED TO 5.7
MB AT THIS TIME YESTERDAY. WITH ONSHORE FLOW STRENGTHENING AND
LOWERING 500 MB HEIGHTS...THE COOLING TREND SHOULD CONTINUE
TODAY...AND INTO FRIDAY AS WELL...WITH DAY-TIME HIGHS REACHING 10 TO
20 DEGREES BELOW NORMAL ON FRIDAY. THIS SHOULD ALSO CAUSE THE MARINE
LAYER TO DEEPEN TO 4000-4500 FEET ABOVE MSL BY LATE TONIGHT...WHICH
WOULD RESULT IN LOW CLOUDS FILLING THE COASTAL BASIN AGAIN AND ALSO
REACHING INTO THE LOWER MOUNTAIN SLOPES AND THROUGH THE PASSES.
FINALLY...THE STRONGER ONSHORE FLOW WILL ALSO RESULT IN GUSTY
SOUTHWEST TO WEST WINDS ALONG THE DESERT SLOPES AND THROUGH AND
BELOW MOUNTAIN PASSES/CANYONS DURING THE LATE AFTERNOON AND EVENING
HOURS TODAY AND FRIDAY. GUSTS TO 45 MPH...AND LOCALLY 55 MPH...WILL
BE POSSIBLE IN THESE AREAS.

BY FRIDAY NIGHT...THE TROUGH TO THE NORTH WILL HAVE WEAKENED...AND
RIDGING TO THE EAST WILL NUDGE INTO THE AREA. THE RIDGE WILL SLOWLY
BUILD OVER THE AREA THROUGH MOST OF NEXT WEEK...BRINGING A WARMING
TREND AND A SHALLOWER...PATCHY MARINE LAYER. ONSHORE FLOW WILL
WEAKEN AS WELL. EVEN WITH THE WARMING TREND...DAY-TIME HIGHS MAY
ONLY REACH NEAR TO SLIGHTLY BELOW NORMAL BY THE MIDDLE OF NEXT WEEK.
ANY MONSOONAL OR TROPICAL MOISTURE LOOKS TO MOSTLY REMAIN TO OUR
EAST...WITH THE GFS BEING THE MODEL THAT BRINGS SOME TROPICAL
MOISTURE CLOSEST TO OUR AREA...ALTHOUGH EVEN WITH THAT THE
PRECIPITABLE WATER ONLY INCREASES TO 1 INCH. THE FORECAST REMAINS
DRY FOR NOW.

&&

.AVIATION...
031510Z...COAST/VALLEYS...STRATUS LAYER WITH BASES 2500-3000 FT MSL
AND TOPS TO 3500 FT MSL BECOMING SCT-LOCALLY BKN 3000-3500 FT MSL
AFT 17Z THROUGH 19Z MOST AREAS WITH UNRESTRICTED VIS. STRATUS LAYER
BECOMING BKN-OVC 2500-3000 FT MSL ALONG THE COAST AGAIN AFT 00Z
THROUGH 04Z WITH TOPS 4000 FT MSL...SPREADING INLAND TO THE LOWER
COASTAL MOUNTAIN SLOPES...LOCALLY OBSCURING THE HIGHER TERRAIN
OVERNIGHT.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH TONIGHT.

&&

.MARINE...
800 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...
800 AM...A LONG PERIOD SOUTH-SOUTHWEST SWELL WILL BEGIN TO MOVE INTO
THE COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC.
SURF WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SOME SETS TO 7 FEET
ALONG SOUTH-SOUTHWEST FACING BEACHES BY SUNDAY EVENING. THE SURF
WILL REMAIN ELEVATED THROUGH MON WITH A COMBO OF SOUTHWEST AND SOUTH
SWELLS. STRONG RIP AND LONGSHORE CURRENTS WILL ACCOMPANY THE HIGHER
SURF...CREATING DANGEROUS SWIMMING CONDITIONS OVER THE HOLIDAY
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION WILL NOT BE NEEDED TODAY.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...HARRISON
AVIATION/MARINE/BEACHES...JAD





000
FXUS66 KSGX 030930
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT THU SEP 3 2015

.SYNOPSIS...

COOL WEATHER WILL CONTINUE THROUGH SATURDAY AS A TROUGH OF LOW
PRESSURE CONTINUES OVER CALIFORNIA. COASTAL CLOUDS WILL BE PRESENT
NIGHTS AND MORNINGS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON
THE DESERT MOUNTAIN SLOPES AND FOOTHILLS. THE TROUGH WILL WEAKEN
NEXT WEEK BRINGING WARMER WEATHER TO FINISH THE HOLIDAY WEEKEND.
LESS EXTENSIVE COASTAL CLOUDS AND SEASONAL WEATHER WILL CONTINUE
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS HAVE STRUGGLED TO FORM AND SPREAD INLAND
OVERNIGHT...BUT THE PLAN IS BY SUNRISE MOST OF THE COASTAL BASIN
SHOULD BE COVERED IN LOW CLOUDS. AT THE SAME TIME THE HIGHER CLOUDS
WERE SLOWLY CLEARING OUT. SUNNY SKIES WILL PREVAIL EVERYWHERE AFTER
THE MORNING BURNOFF. THE COOL WEATHER AND HEALTHY MARINE LAYER OF
3000 FOOT DEPTH ARE BROUGHT TO US BY A LOW PRESSURE TROUGH HOVERING
OVER THE WEST COAST. THIS THING WILL SLOWLY DEEPEN OVER CALIFORNIA
THROUGH FRIDAY NIGHT. THE ONSHORE FLOW WILL PICK UP A LITTLE AND
THAT WILL BOOST WINDS THROUGH MOUNTAIN PASSES AND INTO ADJACENT
DESERT FOOTHILLS EACH AFTERNOON AND EVENING TODAY AND PARTICULARLY
FRIDAY. IT WILL ALSO ENSURE THE ENTIRE COASTAL BASIN FILLS WITH
CLOUDS EACH NIGHT. THE TROUGH LIFTS OUT AND WEAKENS OVER CALIFORNIA
OVER THE WEEKEND. WITH HIGHER HEIGHTS ALOFT OUR AIR MASS WILL BEGIN
TO WARM SUNDAY TO PRODUCE DAYTIME TEMPERATURES CLOSE TO AVERAGE
THROUGH THE HOLIDAY. A SLIGHT INCREASE IN HIGH PRESSURE ALOFT WILL
KEEP THE WARM AND SEASONAL WEATHER COMING. ANY TROPICAL OR MONSOON
MOISTURE PRETTY MUCH STAYS TO OUR SOUTH AND EAST.

&&

.AVIATION...

030850Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-2500 FT MSL
AND TOPS TO 3000 FT MSL DEVELOPING IN THE COASTAL AREAS AND
SPREADING INTO VALLEYS BY SUNRISE. AREAS OF VIS 3-5 SM IN BR/HZ
WHERE STRATUS NEARS HIGHER TERRAIN IN THE VALLEYS 11-16Z. STRATUS
CLEARING 16-19Z...REDEVELOPING AFTER 04/02Z WITH BASES AROUND 2000-
2500 FT MSL AND TOPS LIFTING TO 4500 FT OVERNIGHT. OTHERWISE FEW-SCT
CLOUDS AOA 15000 FT MSL AND UNRESTRICTED VIS THROUGH FRI MORNING.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

155 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...

200 AM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SETS TO 7 FEET ALONG SOUTH-
SOUTHWEST FACING BEACHES BY SUNDAY EVENING. SURF WILL BUILD FURTHER
MONDAY AS A REINFORCING SOUTHWEST SWELL ARRIVES. STRONG RIP CURRENTS
WILL ACCOMPANY THE HIGHER SURF...CREATING DANGEROUS SWIMMING
CONDITIONS OVER THE HOLIDAY WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...SS





000
FXUS66 KSGX 030930
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT THU SEP 3 2015

.SYNOPSIS...

COOL WEATHER WILL CONTINUE THROUGH SATURDAY AS A TROUGH OF LOW
PRESSURE CONTINUES OVER CALIFORNIA. COASTAL CLOUDS WILL BE PRESENT
NIGHTS AND MORNINGS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON
THE DESERT MOUNTAIN SLOPES AND FOOTHILLS. THE TROUGH WILL WEAKEN
NEXT WEEK BRINGING WARMER WEATHER TO FINISH THE HOLIDAY WEEKEND.
LESS EXTENSIVE COASTAL CLOUDS AND SEASONAL WEATHER WILL CONTINUE
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS HAVE STRUGGLED TO FORM AND SPREAD INLAND
OVERNIGHT...BUT THE PLAN IS BY SUNRISE MOST OF THE COASTAL BASIN
SHOULD BE COVERED IN LOW CLOUDS. AT THE SAME TIME THE HIGHER CLOUDS
WERE SLOWLY CLEARING OUT. SUNNY SKIES WILL PREVAIL EVERYWHERE AFTER
THE MORNING BURNOFF. THE COOL WEATHER AND HEALTHY MARINE LAYER OF
3000 FOOT DEPTH ARE BROUGHT TO US BY A LOW PRESSURE TROUGH HOVERING
OVER THE WEST COAST. THIS THING WILL SLOWLY DEEPEN OVER CALIFORNIA
THROUGH FRIDAY NIGHT. THE ONSHORE FLOW WILL PICK UP A LITTLE AND
THAT WILL BOOST WINDS THROUGH MOUNTAIN PASSES AND INTO ADJACENT
DESERT FOOTHILLS EACH AFTERNOON AND EVENING TODAY AND PARTICULARLY
FRIDAY. IT WILL ALSO ENSURE THE ENTIRE COASTAL BASIN FILLS WITH
CLOUDS EACH NIGHT. THE TROUGH LIFTS OUT AND WEAKENS OVER CALIFORNIA
OVER THE WEEKEND. WITH HIGHER HEIGHTS ALOFT OUR AIR MASS WILL BEGIN
TO WARM SUNDAY TO PRODUCE DAYTIME TEMPERATURES CLOSE TO AVERAGE
THROUGH THE HOLIDAY. A SLIGHT INCREASE IN HIGH PRESSURE ALOFT WILL
KEEP THE WARM AND SEASONAL WEATHER COMING. ANY TROPICAL OR MONSOON
MOISTURE PRETTY MUCH STAYS TO OUR SOUTH AND EAST.

&&

.AVIATION...

030850Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-2500 FT MSL
AND TOPS TO 3000 FT MSL DEVELOPING IN THE COASTAL AREAS AND
SPREADING INTO VALLEYS BY SUNRISE. AREAS OF VIS 3-5 SM IN BR/HZ
WHERE STRATUS NEARS HIGHER TERRAIN IN THE VALLEYS 11-16Z. STRATUS
CLEARING 16-19Z...REDEVELOPING AFTER 04/02Z WITH BASES AROUND 2000-
2500 FT MSL AND TOPS LIFTING TO 4500 FT OVERNIGHT. OTHERWISE FEW-SCT
CLOUDS AOA 15000 FT MSL AND UNRESTRICTED VIS THROUGH FRI MORNING.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

155 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...

200 AM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SETS TO 7 FEET ALONG SOUTH-
SOUTHWEST FACING BEACHES BY SUNDAY EVENING. SURF WILL BUILD FURTHER
MONDAY AS A REINFORCING SOUTHWEST SWELL ARRIVES. STRONG RIP CURRENTS
WILL ACCOMPANY THE HIGHER SURF...CREATING DANGEROUS SWIMMING
CONDITIONS OVER THE HOLIDAY WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...SS




000
FXUS66 KSGX 030930
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT THU SEP 3 2015

.SYNOPSIS...

COOL WEATHER WILL CONTINUE THROUGH SATURDAY AS A TROUGH OF LOW
PRESSURE CONTINUES OVER CALIFORNIA. COASTAL CLOUDS WILL BE PRESENT
NIGHTS AND MORNINGS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON
THE DESERT MOUNTAIN SLOPES AND FOOTHILLS. THE TROUGH WILL WEAKEN
NEXT WEEK BRINGING WARMER WEATHER TO FINISH THE HOLIDAY WEEKEND.
LESS EXTENSIVE COASTAL CLOUDS AND SEASONAL WEATHER WILL CONTINUE
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS HAVE STRUGGLED TO FORM AND SPREAD INLAND
OVERNIGHT...BUT THE PLAN IS BY SUNRISE MOST OF THE COASTAL BASIN
SHOULD BE COVERED IN LOW CLOUDS. AT THE SAME TIME THE HIGHER CLOUDS
WERE SLOWLY CLEARING OUT. SUNNY SKIES WILL PREVAIL EVERYWHERE AFTER
THE MORNING BURNOFF. THE COOL WEATHER AND HEALTHY MARINE LAYER OF
3000 FOOT DEPTH ARE BROUGHT TO US BY A LOW PRESSURE TROUGH HOVERING
OVER THE WEST COAST. THIS THING WILL SLOWLY DEEPEN OVER CALIFORNIA
THROUGH FRIDAY NIGHT. THE ONSHORE FLOW WILL PICK UP A LITTLE AND
THAT WILL BOOST WINDS THROUGH MOUNTAIN PASSES AND INTO ADJACENT
DESERT FOOTHILLS EACH AFTERNOON AND EVENING TODAY AND PARTICULARLY
FRIDAY. IT WILL ALSO ENSURE THE ENTIRE COASTAL BASIN FILLS WITH
CLOUDS EACH NIGHT. THE TROUGH LIFTS OUT AND WEAKENS OVER CALIFORNIA
OVER THE WEEKEND. WITH HIGHER HEIGHTS ALOFT OUR AIR MASS WILL BEGIN
TO WARM SUNDAY TO PRODUCE DAYTIME TEMPERATURES CLOSE TO AVERAGE
THROUGH THE HOLIDAY. A SLIGHT INCREASE IN HIGH PRESSURE ALOFT WILL
KEEP THE WARM AND SEASONAL WEATHER COMING. ANY TROPICAL OR MONSOON
MOISTURE PRETTY MUCH STAYS TO OUR SOUTH AND EAST.

&&

.AVIATION...

030850Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-2500 FT MSL
AND TOPS TO 3000 FT MSL DEVELOPING IN THE COASTAL AREAS AND
SPREADING INTO VALLEYS BY SUNRISE. AREAS OF VIS 3-5 SM IN BR/HZ
WHERE STRATUS NEARS HIGHER TERRAIN IN THE VALLEYS 11-16Z. STRATUS
CLEARING 16-19Z...REDEVELOPING AFTER 04/02Z WITH BASES AROUND 2000-
2500 FT MSL AND TOPS LIFTING TO 4500 FT OVERNIGHT. OTHERWISE FEW-SCT
CLOUDS AOA 15000 FT MSL AND UNRESTRICTED VIS THROUGH FRI MORNING.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

155 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...

200 AM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SETS TO 7 FEET ALONG SOUTH-
SOUTHWEST FACING BEACHES BY SUNDAY EVENING. SURF WILL BUILD FURTHER
MONDAY AS A REINFORCING SOUTHWEST SWELL ARRIVES. STRONG RIP CURRENTS
WILL ACCOMPANY THE HIGHER SURF...CREATING DANGEROUS SWIMMING
CONDITIONS OVER THE HOLIDAY WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...SS





000
FXUS66 KSGX 030930
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT THU SEP 3 2015

.SYNOPSIS...

COOL WEATHER WILL CONTINUE THROUGH SATURDAY AS A TROUGH OF LOW
PRESSURE CONTINUES OVER CALIFORNIA. COASTAL CLOUDS WILL BE PRESENT
NIGHTS AND MORNINGS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON
THE DESERT MOUNTAIN SLOPES AND FOOTHILLS. THE TROUGH WILL WEAKEN
NEXT WEEK BRINGING WARMER WEATHER TO FINISH THE HOLIDAY WEEKEND.
LESS EXTENSIVE COASTAL CLOUDS AND SEASONAL WEATHER WILL CONTINUE
NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS HAVE STRUGGLED TO FORM AND SPREAD INLAND
OVERNIGHT...BUT THE PLAN IS BY SUNRISE MOST OF THE COASTAL BASIN
SHOULD BE COVERED IN LOW CLOUDS. AT THE SAME TIME THE HIGHER CLOUDS
WERE SLOWLY CLEARING OUT. SUNNY SKIES WILL PREVAIL EVERYWHERE AFTER
THE MORNING BURNOFF. THE COOL WEATHER AND HEALTHY MARINE LAYER OF
3000 FOOT DEPTH ARE BROUGHT TO US BY A LOW PRESSURE TROUGH HOVERING
OVER THE WEST COAST. THIS THING WILL SLOWLY DEEPEN OVER CALIFORNIA
THROUGH FRIDAY NIGHT. THE ONSHORE FLOW WILL PICK UP A LITTLE AND
THAT WILL BOOST WINDS THROUGH MOUNTAIN PASSES AND INTO ADJACENT
DESERT FOOTHILLS EACH AFTERNOON AND EVENING TODAY AND PARTICULARLY
FRIDAY. IT WILL ALSO ENSURE THE ENTIRE COASTAL BASIN FILLS WITH
CLOUDS EACH NIGHT. THE TROUGH LIFTS OUT AND WEAKENS OVER CALIFORNIA
OVER THE WEEKEND. WITH HIGHER HEIGHTS ALOFT OUR AIR MASS WILL BEGIN
TO WARM SUNDAY TO PRODUCE DAYTIME TEMPERATURES CLOSE TO AVERAGE
THROUGH THE HOLIDAY. A SLIGHT INCREASE IN HIGH PRESSURE ALOFT WILL
KEEP THE WARM AND SEASONAL WEATHER COMING. ANY TROPICAL OR MONSOON
MOISTURE PRETTY MUCH STAYS TO OUR SOUTH AND EAST.

&&

.AVIATION...

030850Z...COAST/VALLEYS...PATCHY STRATUS WITH BASES 2000-2500 FT MSL
AND TOPS TO 3000 FT MSL DEVELOPING IN THE COASTAL AREAS AND
SPREADING INTO VALLEYS BY SUNRISE. AREAS OF VIS 3-5 SM IN BR/HZ
WHERE STRATUS NEARS HIGHER TERRAIN IN THE VALLEYS 11-16Z. STRATUS
CLEARING 16-19Z...REDEVELOPING AFTER 04/02Z WITH BASES AROUND 2000-
2500 FT MSL AND TOPS LIFTING TO 4500 FT OVERNIGHT. OTHERWISE FEW-SCT
CLOUDS AOA 15000 FT MSL AND UNRESTRICTED VIS THROUGH FRI MORNING.

MOUNTAINS/DESERTS...FEW-SCT CLOUDS AOA 15000 FT AND UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

155 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH MONDAY.

&&

.BEACHES...

200 AM...A LONG PERIOD SOUTH-SOUTHWEST WILL BEGIN TO MOVE INTO THE
COASTAL WATERS SATURDAY...PEAKING SUNDAY AT 3 FEET/19-20 SEC. SURF
WILL BUILD TO 3-5 FEET EARLY SUNDAY WITH SETS TO 7 FEET ALONG SOUTH-
SOUTHWEST FACING BEACHES BY SUNDAY EVENING. SURF WILL BUILD FURTHER
MONDAY AS A REINFORCING SOUTHWEST SWELL ARRIVES. STRONG RIP CURRENTS
WILL ACCOMPANY THE HIGHER SURF...CREATING DANGEROUS SWIMMING
CONDITIONS OVER THE HOLIDAY WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...SS




000
FXUS66 KSGX 030441
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT WED SEP 2 2015

.SYNOPSIS...
AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL CONTINUE THE COOLING
TREND THROUGH FRIDAY...ALONG WITH AREAS OF MAINLY NIGHT AND MORNING
LOW CLOUDS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON THE
DESERT MOUNTAIN SLOPES AND FOOTHILLS. OVER THE WEEKEND...THE TROUGH
WILL WEAKEN...AND A WARMING TREND WILL BEGIN SUNDAY...BRINGING
TEMPERATURES TO NEAR OR JUST SLIGHTLY BELOW NORMAL EARLY NEXT WEEK
AND LESS EXTENSIVE LOW CLOUDS. DRY WEATHER WILL PREVAIL FOR AT LEAST
THE NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

STRATUS WAS SLOWER TO DEVELOP THIS EVENING VERSUS YESTERDAY
EVENING...BUT THE COAST WAS STARTING TO HAVE SOME. HIGH CLOUDS WERE
ALSO DRIFTING OVER. THE MARINE INVERSION BASE WAS JUST UNDER 2000
FEET ABOVE SEA LEVEL...A LITTLE MORE SHALLOW THAN 24 HOURS
AGO...THOUGH ONSHORE MSLP GRADIENTS WERE SIMILAR...AROUND +7 MB FROM
SAN DIEGO TO THE LOWER DESERTS. STRATUS WILL BE LATER WITH
DEVELOPMENT TONIGHT BUT SHOULD STILL REACH MOST OF THE VALLEYS BY
THURSDAY MORNING. LOCAL WIND GUSTS OVER 40 MPH WILL OCCUR OVERNIGHT
THROUGH SAN GORGONIO PASS...WITH SLIGHTLY LOWER GUSTS ELSEWHERE ON
SOME OF THE DESERT MOUNTAINS SLOPES/FOOTHILLS.

THE UPPER TROUGH WILL CONTINUE OVER THE WEST COAST...WITH A FAIRLY
ROBUST 500 MB CLOSED LOW MOVING FROM BRITISH COLUMBIA TONIGHT TO
NORTHERN CALIFORNIA FRIDAY NIGHT. THIS WILL RESULT LOWER HEIGHTS
HERE AND LIKELY A DEEPER MARINE LAYER...POSSIBLY AROUND 3000 FEET
DEEPR BY FRIDAY. FRIDAY SHOULD BE THE COOLEST DAY WEST OF THE
MOUNTAINS DUE TO THE MARINE LAYER/ONSHORE FLOW WITH
TEMPERATURES LOCALLY 10-15 DEG F BELOW NORMAL...THOUGH THE MOUNTAINS
AND DESERTS COULD BE SLIGHTLY COOLER SATURDAY AS THE PROFILE ALOFT
WILL BE THE COOLEST THEN. DUE TO THE DEEPER MARINE LAYER RESULTING
IN THE GREATEST VALLEY-DESERT TEMPERATURE GRADIENTS...WINDS WILL BE
STRONGEST FRIDAY IN THE DESERT SLOPES/FOOTHILLS WITH A 50 MPH GUST
NOT OUT OF THE QUESTION NEAR SAN GORGONIO PASS.

AFTER THE CLOSED LOW MOVES EAST OUT OF NORTHERN CALIFORNIA...HEIGHTS
WILL INCREASE OVER CALIFORNIA...THOUGH THE TROUGH WILL NOT DISAPPEAR
ENTIRELY. SOME RIDGING WILL DEVELOP FROM THE SOUTHEAST. THIS WILL
RESULT IN A WARMING TREND BY SUNDAY WITH A SHALLOWER MARINE LAYER.
MONSOONAL MOISTURE WILL MOSTLY STAY TO OUR SOUTHEAST...THOUGH MID-
LEVEL MOISTURE COULD BRIEFLY APPROACH AROUND MONDAY...PERHAPS
ENOUGH FOR CUMULUS...BEFORE DRYING OCCURS AGAIN FROM THE SOUTHWEST
TUESDAY.

&&

.AVIATION...
030330Z...COAST/VALLEYS...SKIES WERE MOSTLY CLEAR AT 03Z WITH ONLY
SCATTERED HIGH CLOUDS ABOVE 15000 FEET. EXPECT CIGS TO FORM AT THE
COAST THROUGH 06Z WITH BKN-OVC020-030 TOPS 035...THEN MOVE INLAND 30-
50SM THROUGH 15Z. FORECAST CONFIDENCE IS HIGH WITH CIG HEIGHTS BUT
LOW WITH TIMING. INVERSION STRENGTH OF 7 DEG C. STRATUS WILL CLEAR
FROM THE COASTAL AIRPORTS BETWEEN 15-19Z THURSDAY.

MOUNTAINS/DESERTS...SCT-BKN CLOUDS AOA 15000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY.

&&

.MARINE...
830 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
830 PM...SOUTHWEST SWELLS WILL BE SUBSIDING THURSDAY AND FRIDAY. A
NEW SOUTH-SOUTHWEST LONG PERIOD SOUTHERN HEMISPHERE SWELL WILL BEGIN
TO AT THE BEACHES ON SATURDAY AND SLOWLY BUILDING THROUGH THE LONG
HOLIDAY WEEKEND. SURF OF 2-4 FEET SATURDAY WILL BUILD TO 3-5 FEET
SUNDAY AND PEAK AT 4-6 FEET MONDAY. THIS LONG PERIOD SWELL WILL
BRING ELEVATED SURF AND A RISK OF RIP CURRENTS.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE/BEACHES...MOEDE





000
FXUS66 KSGX 030441
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT WED SEP 2 2015

.SYNOPSIS...
AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL CONTINUE THE COOLING
TREND THROUGH FRIDAY...ALONG WITH AREAS OF MAINLY NIGHT AND MORNING
LOW CLOUDS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON THE
DESERT MOUNTAIN SLOPES AND FOOTHILLS. OVER THE WEEKEND...THE TROUGH
WILL WEAKEN...AND A WARMING TREND WILL BEGIN SUNDAY...BRINGING
TEMPERATURES TO NEAR OR JUST SLIGHTLY BELOW NORMAL EARLY NEXT WEEK
AND LESS EXTENSIVE LOW CLOUDS. DRY WEATHER WILL PREVAIL FOR AT LEAST
THE NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

STRATUS WAS SLOWER TO DEVELOP THIS EVENING VERSUS YESTERDAY
EVENING...BUT THE COAST WAS STARTING TO HAVE SOME. HIGH CLOUDS WERE
ALSO DRIFTING OVER. THE MARINE INVERSION BASE WAS JUST UNDER 2000
FEET ABOVE SEA LEVEL...A LITTLE MORE SHALLOW THAN 24 HOURS
AGO...THOUGH ONSHORE MSLP GRADIENTS WERE SIMILAR...AROUND +7 MB FROM
SAN DIEGO TO THE LOWER DESERTS. STRATUS WILL BE LATER WITH
DEVELOPMENT TONIGHT BUT SHOULD STILL REACH MOST OF THE VALLEYS BY
THURSDAY MORNING. LOCAL WIND GUSTS OVER 40 MPH WILL OCCUR OVERNIGHT
THROUGH SAN GORGONIO PASS...WITH SLIGHTLY LOWER GUSTS ELSEWHERE ON
SOME OF THE DESERT MOUNTAINS SLOPES/FOOTHILLS.

THE UPPER TROUGH WILL CONTINUE OVER THE WEST COAST...WITH A FAIRLY
ROBUST 500 MB CLOSED LOW MOVING FROM BRITISH COLUMBIA TONIGHT TO
NORTHERN CALIFORNIA FRIDAY NIGHT. THIS WILL RESULT LOWER HEIGHTS
HERE AND LIKELY A DEEPER MARINE LAYER...POSSIBLY AROUND 3000 FEET
DEEPR BY FRIDAY. FRIDAY SHOULD BE THE COOLEST DAY WEST OF THE
MOUNTAINS DUE TO THE MARINE LAYER/ONSHORE FLOW WITH
TEMPERATURES LOCALLY 10-15 DEG F BELOW NORMAL...THOUGH THE MOUNTAINS
AND DESERTS COULD BE SLIGHTLY COOLER SATURDAY AS THE PROFILE ALOFT
WILL BE THE COOLEST THEN. DUE TO THE DEEPER MARINE LAYER RESULTING
IN THE GREATEST VALLEY-DESERT TEMPERATURE GRADIENTS...WINDS WILL BE
STRONGEST FRIDAY IN THE DESERT SLOPES/FOOTHILLS WITH A 50 MPH GUST
NOT OUT OF THE QUESTION NEAR SAN GORGONIO PASS.

AFTER THE CLOSED LOW MOVES EAST OUT OF NORTHERN CALIFORNIA...HEIGHTS
WILL INCREASE OVER CALIFORNIA...THOUGH THE TROUGH WILL NOT DISAPPEAR
ENTIRELY. SOME RIDGING WILL DEVELOP FROM THE SOUTHEAST. THIS WILL
RESULT IN A WARMING TREND BY SUNDAY WITH A SHALLOWER MARINE LAYER.
MONSOONAL MOISTURE WILL MOSTLY STAY TO OUR SOUTHEAST...THOUGH MID-
LEVEL MOISTURE COULD BRIEFLY APPROACH AROUND MONDAY...PERHAPS
ENOUGH FOR CUMULUS...BEFORE DRYING OCCURS AGAIN FROM THE SOUTHWEST
TUESDAY.

&&

.AVIATION...
030330Z...COAST/VALLEYS...SKIES WERE MOSTLY CLEAR AT 03Z WITH ONLY
SCATTERED HIGH CLOUDS ABOVE 15000 FEET. EXPECT CIGS TO FORM AT THE
COAST THROUGH 06Z WITH BKN-OVC020-030 TOPS 035...THEN MOVE INLAND 30-
50SM THROUGH 15Z. FORECAST CONFIDENCE IS HIGH WITH CIG HEIGHTS BUT
LOW WITH TIMING. INVERSION STRENGTH OF 7 DEG C. STRATUS WILL CLEAR
FROM THE COASTAL AIRPORTS BETWEEN 15-19Z THURSDAY.

MOUNTAINS/DESERTS...SCT-BKN CLOUDS AOA 15000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY.

&&

.MARINE...
830 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
830 PM...SOUTHWEST SWELLS WILL BE SUBSIDING THURSDAY AND FRIDAY. A
NEW SOUTH-SOUTHWEST LONG PERIOD SOUTHERN HEMISPHERE SWELL WILL BEGIN
TO AT THE BEACHES ON SATURDAY AND SLOWLY BUILDING THROUGH THE LONG
HOLIDAY WEEKEND. SURF OF 2-4 FEET SATURDAY WILL BUILD TO 3-5 FEET
SUNDAY AND PEAK AT 4-6 FEET MONDAY. THIS LONG PERIOD SWELL WILL
BRING ELEVATED SURF AND A RISK OF RIP CURRENTS.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE/BEACHES...MOEDE




000
FXUS66 KSGX 030441
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT WED SEP 2 2015

.SYNOPSIS...
AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL CONTINUE THE COOLING
TREND THROUGH FRIDAY...ALONG WITH AREAS OF MAINLY NIGHT AND MORNING
LOW CLOUDS WEST OF THE MOUNTAINS AND LOCALLY GUSTY WINDS ON THE
DESERT MOUNTAIN SLOPES AND FOOTHILLS. OVER THE WEEKEND...THE TROUGH
WILL WEAKEN...AND A WARMING TREND WILL BEGIN SUNDAY...BRINGING
TEMPERATURES TO NEAR OR JUST SLIGHTLY BELOW NORMAL EARLY NEXT WEEK
AND LESS EXTENSIVE LOW CLOUDS. DRY WEATHER WILL PREVAIL FOR AT LEAST
THE NEXT WEEK.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

STRATUS WAS SLOWER TO DEVELOP THIS EVENING VERSUS YESTERDAY
EVENING...BUT THE COAST WAS STARTING TO HAVE SOME. HIGH CLOUDS WERE
ALSO DRIFTING OVER. THE MARINE INVERSION BASE WAS JUST UNDER 2000
FEET ABOVE SEA LEVEL...A LITTLE MORE SHALLOW THAN 24 HOURS
AGO...THOUGH ONSHORE MSLP GRADIENTS WERE SIMILAR...AROUND +7 MB FROM
SAN DIEGO TO THE LOWER DESERTS. STRATUS WILL BE LATER WITH
DEVELOPMENT TONIGHT BUT SHOULD STILL REACH MOST OF THE VALLEYS BY
THURSDAY MORNING. LOCAL WIND GUSTS OVER 40 MPH WILL OCCUR OVERNIGHT
THROUGH SAN GORGONIO PASS...WITH SLIGHTLY LOWER GUSTS ELSEWHERE ON
SOME OF THE DESERT MOUNTAINS SLOPES/FOOTHILLS.

THE UPPER TROUGH WILL CONTINUE OVER THE WEST COAST...WITH A FAIRLY
ROBUST 500 MB CLOSED LOW MOVING FROM BRITISH COLUMBIA TONIGHT TO
NORTHERN CALIFORNIA FRIDAY NIGHT. THIS WILL RESULT LOWER HEIGHTS
HERE AND LIKELY A DEEPER MARINE LAYER...POSSIBLY AROUND 3000 FEET
DEEPR BY FRIDAY. FRIDAY SHOULD BE THE COOLEST DAY WEST OF THE
MOUNTAINS DUE TO THE MARINE LAYER/ONSHORE FLOW WITH
TEMPERATURES LOCALLY 10-15 DEG F BELOW NORMAL...THOUGH THE MOUNTAINS
AND DESERTS COULD BE SLIGHTLY COOLER SATURDAY AS THE PROFILE ALOFT
WILL BE THE COOLEST THEN. DUE TO THE DEEPER MARINE LAYER RESULTING
IN THE GREATEST VALLEY-DESERT TEMPERATURE GRADIENTS...WINDS WILL BE
STRONGEST FRIDAY IN THE DESERT SLOPES/FOOTHILLS WITH A 50 MPH GUST
NOT OUT OF THE QUESTION NEAR SAN GORGONIO PASS.

AFTER THE CLOSED LOW MOVES EAST OUT OF NORTHERN CALIFORNIA...HEIGHTS
WILL INCREASE OVER CALIFORNIA...THOUGH THE TROUGH WILL NOT DISAPPEAR
ENTIRELY. SOME RIDGING WILL DEVELOP FROM THE SOUTHEAST. THIS WILL
RESULT IN A WARMING TREND BY SUNDAY WITH A SHALLOWER MARINE LAYER.
MONSOONAL MOISTURE WILL MOSTLY STAY TO OUR SOUTHEAST...THOUGH MID-
LEVEL MOISTURE COULD BRIEFLY APPROACH AROUND MONDAY...PERHAPS
ENOUGH FOR CUMULUS...BEFORE DRYING OCCURS AGAIN FROM THE SOUTHWEST
TUESDAY.

&&

.AVIATION...
030330Z...COAST/VALLEYS...SKIES WERE MOSTLY CLEAR AT 03Z WITH ONLY
SCATTERED HIGH CLOUDS ABOVE 15000 FEET. EXPECT CIGS TO FORM AT THE
COAST THROUGH 06Z WITH BKN-OVC020-030 TOPS 035...THEN MOVE INLAND 30-
50SM THROUGH 15Z. FORECAST CONFIDENCE IS HIGH WITH CIG HEIGHTS BUT
LOW WITH TIMING. INVERSION STRENGTH OF 7 DEG C. STRATUS WILL CLEAR
FROM THE COASTAL AIRPORTS BETWEEN 15-19Z THURSDAY.

MOUNTAINS/DESERTS...SCT-BKN CLOUDS AOA 15000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY.

&&

.MARINE...
830 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
830 PM...SOUTHWEST SWELLS WILL BE SUBSIDING THURSDAY AND FRIDAY. A
NEW SOUTH-SOUTHWEST LONG PERIOD SOUTHERN HEMISPHERE SWELL WILL BEGIN
TO AT THE BEACHES ON SATURDAY AND SLOWLY BUILDING THROUGH THE LONG
HOLIDAY WEEKEND. SURF OF 2-4 FEET SATURDAY WILL BUILD TO 3-5 FEET
SUNDAY AND PEAK AT 4-6 FEET MONDAY. THIS LONG PERIOD SWELL WILL
BRING ELEVATED SURF AND A RISK OF RIP CURRENTS.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE/BEACHES...MOEDE





000
FXUS66 KSGX 022033
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
133 PM PDT WED SEP 2 2015

.SYNOPSIS...
FAIR...COOLER AND DRY WEATHER THIS WEEK...WITH NIGHT AND MORNING
COASTAL LOW CLOUDS EXTENDING TO THE COASTAL MOUNTAIN SLOPES
THROUGH SATURDAY. LOCALLY GUSTY WEST WINDS WILL DEVELOP EACH
AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND THROUGH
MOUNTAIN PASSES. CLOSER TO SEASONAL HIGH TEMPERATURES AND DRY NEXT
WEEK...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 02/1200 UTC ECMWF AND GFS ARE IN GOOD AGREEMENT IN THE SHORT-
TERM...AND DIFFER SLIGHTLY IN THE LONG-TERM.

AT 1 PM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A WEAK LOW AROUND 115 MILES
SW OF POINT CONCEPTION...AND AN UPPER-LEVEL RIDGE OVER WESTERN TX.
VISIBLE SATELLITE SHOWED FEW TO SCATTERED HIGH CLOUDS STREAMING
OVER THE AREA.

LOWER HEIGHTS ACROSS THE REGION WILL CONTINUE THE COOLING TREND
THROUGH FRIDAY. HIGH TEMPERATURES WILL BE BETWEEN 5 AND 15 DEG F
BELOW NORMAL FOR INLAND AREAS...AND NEAR NORMAL ALONG THE COAST
AND HIGH DESERTS. A DEEP MARINE LAYER WILL HELP DEVELOP
NIGHT/MORNING LOW CLOUDS INLAND TO THE COASTAL MOUNTAIN SLOPES
EACH NIGHT THROUGH THE END OF THE WEEK. ONSHORE SURFACE PRESSURE
GRADIENTS OF 5 TO 7 MB FROM THE COAST TO THE LOWER DESERTS WILL
CREATE AFTERNOON/EVENING WESTERLY WIND GUSTS NEAR 40 MPH THROUGH
MOUNTAIN PASSES AND ALONG ADJACENT DESERT MOUNTAIN SLOPES.
ISOLATED GUSTS NEAR 50 MPH IS POSSIBLE FRIDAY NIGHT AS THE TROUGH
SWINGS ACROSS SW CA.

HEIGHTS WILL BUILD SLIGHTLY EARLY NEXT WEEK...WITH A WEAK TROUGH
TO ALMOST ZONAL PATTERN DEVELOPING ALONG THE WEST COAST. THIS
WILL CREATE NEAR SEASONAL HIGH TEMPERATURES...A MODERATE MARINE
LAYER WITH NIGHT/MORNING LOW CLOUDS/FOG ALONG THE COAST AND
COASTAL VALLEYS...AND WEAK TO MODERATE ONSHORE FLOW THROUGH THE
PERIOD. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH NEXT WEEK.

&&

.AVIATION...
022027Z...COAST/VALLEYS...BKN-SCT CLOUDS AOA 20000 FT MSL AND
UNRESTRICTED VIS PREVAILING THROUGH 03/0000 UTC. 03/0000-1500
UTC...OVC STRATUS FILLING IN 30-50 SM INLAND...WITH BASES 2000-3000
FT MSL AND TOPS 3500-4000 FT MSL. FORECAST CONFIDENCE IN CIG
HEIGHTS/VIS IS MODERATE-TO-HIGH...WITH LOW-TO-MODERATE CONFIDENCE IN
TIMING. MARINE LAYER INVERSION STRENGTH OF AROUND 7 DEG C EXPECTED.
CLEARING OF STRATUS DURING THE 03/1500-1900 UTC TIME-FRAME.

MOUNTAINS/DESERTS...BKN-SCT CLOUDS AOA 20000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY MORNING.

&&

.MARINE...
127 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
127 PM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
THE SO-CAL BEACHES TODAY...PRODUCING LOCAL 3 TO 5 FOOT SURF AND
STRONG RIP CURRENTS. THE SOUTH SWELLS WILL SUBSIDE THURSDAY THROUGH
EARLY SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL
ARRIVES AT THE BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...HARRISON





000
FXUS66 KSGX 022033
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
133 PM PDT WED SEP 2 2015

.SYNOPSIS...
FAIR...COOLER AND DRY WEATHER THIS WEEK...WITH NIGHT AND MORNING
COASTAL LOW CLOUDS EXTENDING TO THE COASTAL MOUNTAIN SLOPES
THROUGH SATURDAY. LOCALLY GUSTY WEST WINDS WILL DEVELOP EACH
AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND THROUGH
MOUNTAIN PASSES. CLOSER TO SEASONAL HIGH TEMPERATURES AND DRY NEXT
WEEK...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 02/1200 UTC ECMWF AND GFS ARE IN GOOD AGREEMENT IN THE SHORT-
TERM...AND DIFFER SLIGHTLY IN THE LONG-TERM.

AT 1 PM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A WEAK LOW AROUND 115 MILES
SW OF POINT CONCEPTION...AND AN UPPER-LEVEL RIDGE OVER WESTERN TX.
VISIBLE SATELLITE SHOWED FEW TO SCATTERED HIGH CLOUDS STREAMING
OVER THE AREA.

LOWER HEIGHTS ACROSS THE REGION WILL CONTINUE THE COOLING TREND
THROUGH FRIDAY. HIGH TEMPERATURES WILL BE BETWEEN 5 AND 15 DEG F
BELOW NORMAL FOR INLAND AREAS...AND NEAR NORMAL ALONG THE COAST
AND HIGH DESERTS. A DEEP MARINE LAYER WILL HELP DEVELOP
NIGHT/MORNING LOW CLOUDS INLAND TO THE COASTAL MOUNTAIN SLOPES
EACH NIGHT THROUGH THE END OF THE WEEK. ONSHORE SURFACE PRESSURE
GRADIENTS OF 5 TO 7 MB FROM THE COAST TO THE LOWER DESERTS WILL
CREATE AFTERNOON/EVENING WESTERLY WIND GUSTS NEAR 40 MPH THROUGH
MOUNTAIN PASSES AND ALONG ADJACENT DESERT MOUNTAIN SLOPES.
ISOLATED GUSTS NEAR 50 MPH IS POSSIBLE FRIDAY NIGHT AS THE TROUGH
SWINGS ACROSS SW CA.

HEIGHTS WILL BUILD SLIGHTLY EARLY NEXT WEEK...WITH A WEAK TROUGH
TO ALMOST ZONAL PATTERN DEVELOPING ALONG THE WEST COAST. THIS
WILL CREATE NEAR SEASONAL HIGH TEMPERATURES...A MODERATE MARINE
LAYER WITH NIGHT/MORNING LOW CLOUDS/FOG ALONG THE COAST AND
COASTAL VALLEYS...AND WEAK TO MODERATE ONSHORE FLOW THROUGH THE
PERIOD. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH NEXT WEEK.

&&

.AVIATION...
022027Z...COAST/VALLEYS...BKN-SCT CLOUDS AOA 20000 FT MSL AND
UNRESTRICTED VIS PREVAILING THROUGH 03/0000 UTC. 03/0000-1500
UTC...OVC STRATUS FILLING IN 30-50 SM INLAND...WITH BASES 2000-3000
FT MSL AND TOPS 3500-4000 FT MSL. FORECAST CONFIDENCE IN CIG
HEIGHTS/VIS IS MODERATE-TO-HIGH...WITH LOW-TO-MODERATE CONFIDENCE IN
TIMING. MARINE LAYER INVERSION STRENGTH OF AROUND 7 DEG C EXPECTED.
CLEARING OF STRATUS DURING THE 03/1500-1900 UTC TIME-FRAME.

MOUNTAINS/DESERTS...BKN-SCT CLOUDS AOA 20000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY MORNING.

&&

.MARINE...
127 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
127 PM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
THE SO-CAL BEACHES TODAY...PRODUCING LOCAL 3 TO 5 FOOT SURF AND
STRONG RIP CURRENTS. THE SOUTH SWELLS WILL SUBSIDE THURSDAY THROUGH
EARLY SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL
ARRIVES AT THE BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...HARRISON




000
FXUS66 KSGX 021603
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
903 AM PDT WED SEP 2 2015

.SYNOPSIS...
FAIR...COOLER AND DRY WEATHER THIS WEEK...WITH NIGHT AND MORNING
COASTAL LOW CLOUDS EXTENDING TO THE COASTAL MOUNTAIN SLOPES
THROUGH SATURDAY. LOCALLY GUSTY WEST WINDS WILL DEVELOP EACH
AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND THROUGH
MOUNTAIN PASSES. CLOSER TO SEASONAL HIGH TEMPERATURES AND DRY NEXT
WEEK...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 02/0000 UTC ECMWF AND 02/0600 GFS ARE IN GOOD AGREEMENT IN
THE SHORT-TERM...AND DIFFER SLIGHTLY IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A WEAK LOW AROUND 150 MILES
SW OF POINT CONCEPTION...AND AN UPPER-LEVEL RIDGE OVER WESTERN TX.
VISIBLE SATELLITE SHOWED A DEEP MARINE LAYER...WITH LOW CLOUDS
BEGINNING TO CLEAR OVER INLAND AREAS...AND SOME HIGH CLOUDS OVER
THE REGION. THE 02/1200 UTC KNKX SOUNDING SHOWED AN 9 DEG C
MARINE LAYER INVERSION...AND A CALCULATED PRECIPITABLE WATER OF
0.78 INCHES.

LOWER HEIGHTS ACROSS THE REGION WILL CONTINUE THE COOLING TREND
THROUGH FRIDAY. HIGH TEMPERATURES WILL BE BETWEEN 5 AND 15 DEG F
BELOW NORMAL FOR INLAND AREAS...AND NEAR NORMAL ALONG THE COAST
AND HIGH DESERTS. A DEEP MARINE LAYER WILL HELP DEVELOP
NIGHT/MORNING LOW CLOUDS INLAND TO THE COASTAL MOUNTAIN SLOPES
EACH NIGHT THROUGH THE END OF THE WEEK. ONSHORE SURFACE PRESSURE
GRADIENTS OF 5 TO 7 MB FROM THE COAST TO THE LOWER DESERTS WILL
CREATE AFTERNOON/EVENING WESTERLY WIND GUSTS NEAR 40 MPH THROUGH
MOUNTAIN PASSES AND ALONG ADJACENT DESERT MOUNTAIN SLOPES.

HEIGHTS WILL BUILD SLIGHTLY EARLY NEXT WEEK...WITH A WEAK TROUGH
TO ALMOST ZONAL PATTERN DEVELOPING ALONG THE WEST COAST. THIS
WILL CREATE NEAR SEASONAL HIGH TEMPERATURES...A MODERATE MARINE
LAYER WITH NIGHT/MORNING LOW CLOUDS/FOG ALONG THE COAST AND
COASTAL VALLEYS...AND WEAK TO MODERATE ONSHORE FLOW THROUGH THE
PERIOD. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH NEXT WEEK.

&&

.AVIATION...
021509Z...COAST/VALLEYS...BKN-OVC STRATUS 30-50 SM INLAND WITH BASES
2500-3000 FT MSL AND TOPS 3000-3500 FT MSL...WILL LIKELY CLEAR OUT
THROUGH 1900 UTC...WITH BKN-SCT CLOUDS AOA 20000 FT MSL AND
UNRESTRICTED VIS PREVAILING THROUGH 03/0000 UTC. MARINE LAYER
INVERSION STRENGTH OF 9 DEG C THIS MORNING. 03/0000-1500 UTC...OVC
STRATUS FILLING IN 30-50 SM INLAND...WITH BASES 2000-3000 FT MSL AND
TOPS 3500-4000 FT MSL. FORECAST CONFIDENCE IN CIG HEIGHTS/VIS IS
MODERATE-TO-HIGH...WITH LOW-TO-MODERATE CONFIDENCE IN TIMING.

MOUNTAINS/DESERTS...BKN-SCT CLOUDS AOA 20000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY MORNING.

&&

.MARINE...
809 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
809 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
THE SO-CAL BEACHES TODAY...PRODUCING LOCAL 3 TO 5 FOOT SURF AND
STRONG RIP CURRENTS. THE SOUTH SWELLS WILL SUBSIDE THURSDAY THROUGH
EARLY SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL
ARRIVES AT THE BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...HARRISON





000
FXUS66 KSGX 021603
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
903 AM PDT WED SEP 2 2015

.SYNOPSIS...
FAIR...COOLER AND DRY WEATHER THIS WEEK...WITH NIGHT AND MORNING
COASTAL LOW CLOUDS EXTENDING TO THE COASTAL MOUNTAIN SLOPES
THROUGH SATURDAY. LOCALLY GUSTY WEST WINDS WILL DEVELOP EACH
AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND THROUGH
MOUNTAIN PASSES. CLOSER TO SEASONAL HIGH TEMPERATURES AND DRY NEXT
WEEK...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 02/0000 UTC ECMWF AND 02/0600 GFS ARE IN GOOD AGREEMENT IN
THE SHORT-TERM...AND DIFFER SLIGHTLY IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A WEAK LOW AROUND 150 MILES
SW OF POINT CONCEPTION...AND AN UPPER-LEVEL RIDGE OVER WESTERN TX.
VISIBLE SATELLITE SHOWED A DEEP MARINE LAYER...WITH LOW CLOUDS
BEGINNING TO CLEAR OVER INLAND AREAS...AND SOME HIGH CLOUDS OVER
THE REGION. THE 02/1200 UTC KNKX SOUNDING SHOWED AN 9 DEG C
MARINE LAYER INVERSION...AND A CALCULATED PRECIPITABLE WATER OF
0.78 INCHES.

LOWER HEIGHTS ACROSS THE REGION WILL CONTINUE THE COOLING TREND
THROUGH FRIDAY. HIGH TEMPERATURES WILL BE BETWEEN 5 AND 15 DEG F
BELOW NORMAL FOR INLAND AREAS...AND NEAR NORMAL ALONG THE COAST
AND HIGH DESERTS. A DEEP MARINE LAYER WILL HELP DEVELOP
NIGHT/MORNING LOW CLOUDS INLAND TO THE COASTAL MOUNTAIN SLOPES
EACH NIGHT THROUGH THE END OF THE WEEK. ONSHORE SURFACE PRESSURE
GRADIENTS OF 5 TO 7 MB FROM THE COAST TO THE LOWER DESERTS WILL
CREATE AFTERNOON/EVENING WESTERLY WIND GUSTS NEAR 40 MPH THROUGH
MOUNTAIN PASSES AND ALONG ADJACENT DESERT MOUNTAIN SLOPES.

HEIGHTS WILL BUILD SLIGHTLY EARLY NEXT WEEK...WITH A WEAK TROUGH
TO ALMOST ZONAL PATTERN DEVELOPING ALONG THE WEST COAST. THIS
WILL CREATE NEAR SEASONAL HIGH TEMPERATURES...A MODERATE MARINE
LAYER WITH NIGHT/MORNING LOW CLOUDS/FOG ALONG THE COAST AND
COASTAL VALLEYS...AND WEAK TO MODERATE ONSHORE FLOW THROUGH THE
PERIOD. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH NEXT WEEK.

&&

.AVIATION...
021509Z...COAST/VALLEYS...BKN-OVC STRATUS 30-50 SM INLAND WITH BASES
2500-3000 FT MSL AND TOPS 3000-3500 FT MSL...WILL LIKELY CLEAR OUT
THROUGH 1900 UTC...WITH BKN-SCT CLOUDS AOA 20000 FT MSL AND
UNRESTRICTED VIS PREVAILING THROUGH 03/0000 UTC. MARINE LAYER
INVERSION STRENGTH OF 9 DEG C THIS MORNING. 03/0000-1500 UTC...OVC
STRATUS FILLING IN 30-50 SM INLAND...WITH BASES 2000-3000 FT MSL AND
TOPS 3500-4000 FT MSL. FORECAST CONFIDENCE IN CIG HEIGHTS/VIS IS
MODERATE-TO-HIGH...WITH LOW-TO-MODERATE CONFIDENCE IN TIMING.

MOUNTAINS/DESERTS...BKN-SCT CLOUDS AOA 20000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY MORNING.

&&

.MARINE...
809 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
809 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
THE SO-CAL BEACHES TODAY...PRODUCING LOCAL 3 TO 5 FOOT SURF AND
STRONG RIP CURRENTS. THE SOUTH SWELLS WILL SUBSIDE THURSDAY THROUGH
EARLY SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL
ARRIVES AT THE BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...HARRISON




000
FXUS66 KSGX 021603
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
903 AM PDT WED SEP 2 2015

.SYNOPSIS...
FAIR...COOLER AND DRY WEATHER THIS WEEK...WITH NIGHT AND MORNING
COASTAL LOW CLOUDS EXTENDING TO THE COASTAL MOUNTAIN SLOPES
THROUGH SATURDAY. LOCALLY GUSTY WEST WINDS WILL DEVELOP EACH
AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND THROUGH
MOUNTAIN PASSES. CLOSER TO SEASONAL HIGH TEMPERATURES AND DRY NEXT
WEEK...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 02/0000 UTC ECMWF AND 02/0600 GFS ARE IN GOOD AGREEMENT IN
THE SHORT-TERM...AND DIFFER SLIGHTLY IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A WEAK LOW AROUND 150 MILES
SW OF POINT CONCEPTION...AND AN UPPER-LEVEL RIDGE OVER WESTERN TX.
VISIBLE SATELLITE SHOWED A DEEP MARINE LAYER...WITH LOW CLOUDS
BEGINNING TO CLEAR OVER INLAND AREAS...AND SOME HIGH CLOUDS OVER
THE REGION. THE 02/1200 UTC KNKX SOUNDING SHOWED AN 9 DEG C
MARINE LAYER INVERSION...AND A CALCULATED PRECIPITABLE WATER OF
0.78 INCHES.

LOWER HEIGHTS ACROSS THE REGION WILL CONTINUE THE COOLING TREND
THROUGH FRIDAY. HIGH TEMPERATURES WILL BE BETWEEN 5 AND 15 DEG F
BELOW NORMAL FOR INLAND AREAS...AND NEAR NORMAL ALONG THE COAST
AND HIGH DESERTS. A DEEP MARINE LAYER WILL HELP DEVELOP
NIGHT/MORNING LOW CLOUDS INLAND TO THE COASTAL MOUNTAIN SLOPES
EACH NIGHT THROUGH THE END OF THE WEEK. ONSHORE SURFACE PRESSURE
GRADIENTS OF 5 TO 7 MB FROM THE COAST TO THE LOWER DESERTS WILL
CREATE AFTERNOON/EVENING WESTERLY WIND GUSTS NEAR 40 MPH THROUGH
MOUNTAIN PASSES AND ALONG ADJACENT DESERT MOUNTAIN SLOPES.

HEIGHTS WILL BUILD SLIGHTLY EARLY NEXT WEEK...WITH A WEAK TROUGH
TO ALMOST ZONAL PATTERN DEVELOPING ALONG THE WEST COAST. THIS
WILL CREATE NEAR SEASONAL HIGH TEMPERATURES...A MODERATE MARINE
LAYER WITH NIGHT/MORNING LOW CLOUDS/FOG ALONG THE COAST AND
COASTAL VALLEYS...AND WEAK TO MODERATE ONSHORE FLOW THROUGH THE
PERIOD. DRY WEATHER IS EXPECTED TO CONTINUE THROUGH NEXT WEEK.

&&

.AVIATION...
021509Z...COAST/VALLEYS...BKN-OVC STRATUS 30-50 SM INLAND WITH BASES
2500-3000 FT MSL AND TOPS 3000-3500 FT MSL...WILL LIKELY CLEAR OUT
THROUGH 1900 UTC...WITH BKN-SCT CLOUDS AOA 20000 FT MSL AND
UNRESTRICTED VIS PREVAILING THROUGH 03/0000 UTC. MARINE LAYER
INVERSION STRENGTH OF 9 DEG C THIS MORNING. 03/0000-1500 UTC...OVC
STRATUS FILLING IN 30-50 SM INLAND...WITH BASES 2000-3000 FT MSL AND
TOPS 3500-4000 FT MSL. FORECAST CONFIDENCE IN CIG HEIGHTS/VIS IS
MODERATE-TO-HIGH...WITH LOW-TO-MODERATE CONFIDENCE IN TIMING.

MOUNTAINS/DESERTS...BKN-SCT CLOUDS AOA 20000 FT WITH UNRESTRICTED
VIS THROUGH THURSDAY MORNING.

&&

.MARINE...
809 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...
809 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
THE SO-CAL BEACHES TODAY...PRODUCING LOCAL 3 TO 5 FOOT SURF AND
STRONG RIP CURRENTS. THE SOUTH SWELLS WILL SUBSIDE THURSDAY THROUGH
EARLY SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL
ARRIVES AT THE BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...HARRISON





000
FXUS66 KSGX 020932
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT WED SEP 2 2015

.SYNOPSIS...

A LOW PRESSURE TROUGH ALONG THE WEST COAST WILL CONTINUE THE FAIR
AND COOL WEATHER THIS WEEK...WITH NIGHT AND MORNING COASTAL LOW
CLOUDS EXTENDING WELL INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER WEATHER WILL OCCUR THIS
WEEKEND...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL CLOUDS ARE FILLING ALL THE COASTAL AND VALLEY AREAS QUITE
EFFICIENTLY THIS MORNING AND WILL PUSH ALL THE WAY TO THE MOUNTAIN
SLOPES BY SUNRISE. A WEAK COASTAL EDDY AND A TROUGH OF LOW PRESSURE
ALONG THE WEST COAST HAVE ALLOWED OUR MARINE LAYER TO DEEPEN TO
ABOUT 3000 FEET. THE EDDY WILL REMAIN RATHER INTERMITTENT BUT THE
MARINE LAYER WILL CONTINUE QUITE DEEP THROUGH SATURDAY BECAUSE THE
LOW PRESSURE TROUGH WILL DEEPEN OVER THE WEST. COASTAL CLOUDS WILL
BE RATHER EXTENSIVE AND PERSISTENT IN THE COMING DAYS...BUT STILL
LOTS OF SUNSHINE LATE MORNINGS THROUGH SUNSET. A SMALLER SHORTWAVE
THAT HAS BROUGHT US THE HIGHER CLOUDS WILL SLOWLY MOVE NORTHEAST AND
PUSH ASIDE THE HIGH CLOUDS EVENTUALLY TODAY. TEMPERATURES WILL BE
UNSEASONABLY COOL THROUGH THE FIRST PART OF THE HOLIDAY WEEKEND.
HIGHS WILL BE WELL BELOW AVERAGE FOR THIS TIME OF YEAR. NIGHTS WILL
CONTINUE ON THE MILD TO WARM SIDE PARTICULARLY NEAR THE COAST
BECAUSE OF THE CLOUD COVER AND A WARM SEA SURFACE IN THE MID 70S.
GUSTY WESTERLY WINDS WILL DEVELOP EACH LATE AFTERNOON IN THE USUAL
CORRIDORS OF MOUNTAIN PASSES INTO ADJACENT DESERTS. THESE WILL BE
FAIRLY LOCALIZED AND TOP GUSTS IN TOP SPOTS WILL BE AROUND 40 MPH.
THE LOW PRESSURE TROUGH PUSHES INTO THE INTERIOR WEST OVER THE
WEEKEND AND HIGH PRESSURE BUILDS JUST A LITTLE SUNDAY AND MONDAY.
THAT WILL BRING A MINI WARMING TREND AND SUPPRESS THE MARINE LAYER
FOR LESS EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY; LABOR DAY LOOKS
QUITE NICE WITH SEASONAL TEMPERATURES. AS USUAL...MODEL CONSENSUS
GOES AWRY FOR DAYS 6 AND 7. RIGHT NOW THEY HANG ON TO A NEUTRAL
PATTERN...NEITHER A TROUGH NOR A RIDGE...THAT SAYS A FAIR AND
SEASONAL FORECAST IS THE BEST BET FOR NOW.

&&

.AVIATION...

020900Z...COAST/VALLEYS... LOW CLOUDS HAVE SPREAD INLAND TO THE
COASTAL SLOPES OF SAN DIEGO COUNTY AND COVER PORTIONS OF THE INLAND
EMPIRE...IMPACTING KONT. BASES ARE AROUND 2000 FT MSL AND TOPS ARE
NEAR 3000 FT MSL. EXPECT VIS 3SM OR LESS WHERE CLOUDS AND TERRAIN
INTERSECT...WITH HIGHER TERRAIN OBSCURED. EXPECT CLEARING TO THE
COAST BETWEEN 16Z AND 18Z...HOWEVER A FEW LOW CLOUDS MAY LINGER AT
THE BEACHES INTO THE AFTERNOON. LOW CLOUDS COULD BEGIN SPREADING
INLAND AGAIN AFT 02Z THU.

MTNS/DESERTS...SCT TO BKN CLOUDS AOA 20000 FT WITH UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

200 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...

200 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
LOCAL BEACHES THROUGH TODAY...PRODUCING ELEVATED SURF AND STRONG RIP
CURRENTS. SURF WILL BE HIGHEST TODAY WITH MAX SETS TO 5 FT ALONG
SOUTHWEST FACING BEACHES NORTH OF OCEANSIDE. THE SOUTH SWELLS WILL
SUBSIDE THURSDAY THROUGH EARLY SATURDAY..BEFORE A LONG PERIOD
SOUTHERN HEMISPHERE SWELL ARRIVES AT LOCAL BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG





000
FXUS66 KSGX 020932
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT WED SEP 2 2015

.SYNOPSIS...

A LOW PRESSURE TROUGH ALONG THE WEST COAST WILL CONTINUE THE FAIR
AND COOL WEATHER THIS WEEK...WITH NIGHT AND MORNING COASTAL LOW
CLOUDS EXTENDING WELL INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER WEATHER WILL OCCUR THIS
WEEKEND...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL CLOUDS ARE FILLING ALL THE COASTAL AND VALLEY AREAS QUITE
EFFICIENTLY THIS MORNING AND WILL PUSH ALL THE WAY TO THE MOUNTAIN
SLOPES BY SUNRISE. A WEAK COASTAL EDDY AND A TROUGH OF LOW PRESSURE
ALONG THE WEST COAST HAVE ALLOWED OUR MARINE LAYER TO DEEPEN TO
ABOUT 3000 FEET. THE EDDY WILL REMAIN RATHER INTERMITTENT BUT THE
MARINE LAYER WILL CONTINUE QUITE DEEP THROUGH SATURDAY BECAUSE THE
LOW PRESSURE TROUGH WILL DEEPEN OVER THE WEST. COASTAL CLOUDS WILL
BE RATHER EXTENSIVE AND PERSISTENT IN THE COMING DAYS...BUT STILL
LOTS OF SUNSHINE LATE MORNINGS THROUGH SUNSET. A SMALLER SHORTWAVE
THAT HAS BROUGHT US THE HIGHER CLOUDS WILL SLOWLY MOVE NORTHEAST AND
PUSH ASIDE THE HIGH CLOUDS EVENTUALLY TODAY. TEMPERATURES WILL BE
UNSEASONABLY COOL THROUGH THE FIRST PART OF THE HOLIDAY WEEKEND.
HIGHS WILL BE WELL BELOW AVERAGE FOR THIS TIME OF YEAR. NIGHTS WILL
CONTINUE ON THE MILD TO WARM SIDE PARTICULARLY NEAR THE COAST
BECAUSE OF THE CLOUD COVER AND A WARM SEA SURFACE IN THE MID 70S.
GUSTY WESTERLY WINDS WILL DEVELOP EACH LATE AFTERNOON IN THE USUAL
CORRIDORS OF MOUNTAIN PASSES INTO ADJACENT DESERTS. THESE WILL BE
FAIRLY LOCALIZED AND TOP GUSTS IN TOP SPOTS WILL BE AROUND 40 MPH.
THE LOW PRESSURE TROUGH PUSHES INTO THE INTERIOR WEST OVER THE
WEEKEND AND HIGH PRESSURE BUILDS JUST A LITTLE SUNDAY AND MONDAY.
THAT WILL BRING A MINI WARMING TREND AND SUPPRESS THE MARINE LAYER
FOR LESS EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY; LABOR DAY LOOKS
QUITE NICE WITH SEASONAL TEMPERATURES. AS USUAL...MODEL CONSENSUS
GOES AWRY FOR DAYS 6 AND 7. RIGHT NOW THEY HANG ON TO A NEUTRAL
PATTERN...NEITHER A TROUGH NOR A RIDGE...THAT SAYS A FAIR AND
SEASONAL FORECAST IS THE BEST BET FOR NOW.

&&

.AVIATION...

020900Z...COAST/VALLEYS... LOW CLOUDS HAVE SPREAD INLAND TO THE
COASTAL SLOPES OF SAN DIEGO COUNTY AND COVER PORTIONS OF THE INLAND
EMPIRE...IMPACTING KONT. BASES ARE AROUND 2000 FT MSL AND TOPS ARE
NEAR 3000 FT MSL. EXPECT VIS 3SM OR LESS WHERE CLOUDS AND TERRAIN
INTERSECT...WITH HIGHER TERRAIN OBSCURED. EXPECT CLEARING TO THE
COAST BETWEEN 16Z AND 18Z...HOWEVER A FEW LOW CLOUDS MAY LINGER AT
THE BEACHES INTO THE AFTERNOON. LOW CLOUDS COULD BEGIN SPREADING
INLAND AGAIN AFT 02Z THU.

MTNS/DESERTS...SCT TO BKN CLOUDS AOA 20000 FT WITH UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

200 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...

200 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
LOCAL BEACHES THROUGH TODAY...PRODUCING ELEVATED SURF AND STRONG RIP
CURRENTS. SURF WILL BE HIGHEST TODAY WITH MAX SETS TO 5 FT ALONG
SOUTHWEST FACING BEACHES NORTH OF OCEANSIDE. THE SOUTH SWELLS WILL
SUBSIDE THURSDAY THROUGH EARLY SATURDAY..BEFORE A LONG PERIOD
SOUTHERN HEMISPHERE SWELL ARRIVES AT LOCAL BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG





000
FXUS66 KSGX 020932
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
230 AM PDT WED SEP 2 2015

.SYNOPSIS...

A LOW PRESSURE TROUGH ALONG THE WEST COAST WILL CONTINUE THE FAIR
AND COOL WEATHER THIS WEEK...WITH NIGHT AND MORNING COASTAL LOW
CLOUDS EXTENDING WELL INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER WEATHER WILL OCCUR THIS
WEEKEND...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL CLOUDS ARE FILLING ALL THE COASTAL AND VALLEY AREAS QUITE
EFFICIENTLY THIS MORNING AND WILL PUSH ALL THE WAY TO THE MOUNTAIN
SLOPES BY SUNRISE. A WEAK COASTAL EDDY AND A TROUGH OF LOW PRESSURE
ALONG THE WEST COAST HAVE ALLOWED OUR MARINE LAYER TO DEEPEN TO
ABOUT 3000 FEET. THE EDDY WILL REMAIN RATHER INTERMITTENT BUT THE
MARINE LAYER WILL CONTINUE QUITE DEEP THROUGH SATURDAY BECAUSE THE
LOW PRESSURE TROUGH WILL DEEPEN OVER THE WEST. COASTAL CLOUDS WILL
BE RATHER EXTENSIVE AND PERSISTENT IN THE COMING DAYS...BUT STILL
LOTS OF SUNSHINE LATE MORNINGS THROUGH SUNSET. A SMALLER SHORTWAVE
THAT HAS BROUGHT US THE HIGHER CLOUDS WILL SLOWLY MOVE NORTHEAST AND
PUSH ASIDE THE HIGH CLOUDS EVENTUALLY TODAY. TEMPERATURES WILL BE
UNSEASONABLY COOL THROUGH THE FIRST PART OF THE HOLIDAY WEEKEND.
HIGHS WILL BE WELL BELOW AVERAGE FOR THIS TIME OF YEAR. NIGHTS WILL
CONTINUE ON THE MILD TO WARM SIDE PARTICULARLY NEAR THE COAST
BECAUSE OF THE CLOUD COVER AND A WARM SEA SURFACE IN THE MID 70S.
GUSTY WESTERLY WINDS WILL DEVELOP EACH LATE AFTERNOON IN THE USUAL
CORRIDORS OF MOUNTAIN PASSES INTO ADJACENT DESERTS. THESE WILL BE
FAIRLY LOCALIZED AND TOP GUSTS IN TOP SPOTS WILL BE AROUND 40 MPH.
THE LOW PRESSURE TROUGH PUSHES INTO THE INTERIOR WEST OVER THE
WEEKEND AND HIGH PRESSURE BUILDS JUST A LITTLE SUNDAY AND MONDAY.
THAT WILL BRING A MINI WARMING TREND AND SUPPRESS THE MARINE LAYER
FOR LESS EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY; LABOR DAY LOOKS
QUITE NICE WITH SEASONAL TEMPERATURES. AS USUAL...MODEL CONSENSUS
GOES AWRY FOR DAYS 6 AND 7. RIGHT NOW THEY HANG ON TO A NEUTRAL
PATTERN...NEITHER A TROUGH NOR A RIDGE...THAT SAYS A FAIR AND
SEASONAL FORECAST IS THE BEST BET FOR NOW.

&&

.AVIATION...

020900Z...COAST/VALLEYS... LOW CLOUDS HAVE SPREAD INLAND TO THE
COASTAL SLOPES OF SAN DIEGO COUNTY AND COVER PORTIONS OF THE INLAND
EMPIRE...IMPACTING KONT. BASES ARE AROUND 2000 FT MSL AND TOPS ARE
NEAR 3000 FT MSL. EXPECT VIS 3SM OR LESS WHERE CLOUDS AND TERRAIN
INTERSECT...WITH HIGHER TERRAIN OBSCURED. EXPECT CLEARING TO THE
COAST BETWEEN 16Z AND 18Z...HOWEVER A FEW LOW CLOUDS MAY LINGER AT
THE BEACHES INTO THE AFTERNOON. LOW CLOUDS COULD BEGIN SPREADING
INLAND AGAIN AFT 02Z THU.

MTNS/DESERTS...SCT TO BKN CLOUDS AOA 20000 FT WITH UNRESTRICTED VIS
THROUGH THURSDAY.

&&

.MARINE...

200 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY.

&&

.BEACHES...

200 AM...SOUTHWEST SWELLS FROM TROPICAL CYCLONES WILL CONTINUE AT
LOCAL BEACHES THROUGH TODAY...PRODUCING ELEVATED SURF AND STRONG RIP
CURRENTS. SURF WILL BE HIGHEST TODAY WITH MAX SETS TO 5 FT ALONG
SOUTHWEST FACING BEACHES NORTH OF OCEANSIDE. THE SOUTH SWELLS WILL
SUBSIDE THURSDAY THROUGH EARLY SATURDAY..BEFORE A LONG PERIOD
SOUTHERN HEMISPHERE SWELL ARRIVES AT LOCAL BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG




000
FXUS66 KSGX 020433
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR AND
COOLER WEATHER THIS WEEK...WITH NIGHT AND MORNING COASTAL LOW CLOUDS
EXTENDING WELL INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS WILL
DEVELOP EACH AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND
THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER WEATHER WILL OCCUR THIS
WEEKEND...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

AREAS OF LOW CLOUDS WERE ALONG THE COAST WITH QUITE A LOT OF HIGH
CLOUDS OVER THE REGION...ASSOCIATED WITH A LOW OFF THE COAST. MARINE
INVERSION BASE WAS AROUND 2100 FEET. A LITTLE BIT OF AN EDDY
CONTINUES...BUT WEAKER THAN THE ONE MONDAY NIGHT. HIGH CLOUDS WILL
CONTINUE TO DRIFT OVER THE REGION THE REST OF THE NIGHT...WITH LOW
CLOUDS SPREADING INTO THE VALLEYS.

THE LOW PRESSURE TROUGH WILL CONTINUE TO DEEP OVER THE WEST COAST
THE NEXT FEW DAYS...ABSORBING THE UPPER LOW ABOUT 300 MILES OFF THE
COAST. THE MOISTURE WITH THAT UPPER LOW IS ABOVE 500 MB...SO NO
PRECIPITATION SHOULD OCCUR WITH THAT. TEMPERATURES WILL CONTINUE TO
LOWER THE NEXT FEW DAYS AND COULD GET AS MUCH AS 10-15 DEG F BELOW
NORMAL IN THE VALLEYS FOR MAX TEMPS...THOUGH LESS IN OTHER
AREAS...AND MIN TEMPS WILL STAY A LITTLE ABOVE NORMAL NEAR THE COAST
DUE TO SEA SURFACE TEMPERATURES 3-5 DEG F ABOVE NORMAL. THERE WILL
BE A COASTAL EDDY AT TIMES...ESPECIALLY THU/FRI...AND THAT WILL
COMBINE WITH LOWER HEIGHTS TO DEEPEN THE MARINE FURTHER THEN. THERE
COULD POTENTIALLY BE LOCAL DRIZZLE WEST OF THE MOUNTAINS BY FRI
MORNING WITH THE MARINE LAYER LIKELY BEING 3000-3500 FEET DEEP WITH
AN EDDY. DUE TO THE ONSHORE FLOW AND THERMAL GRADIENT BETWEEN THE
VALLEYS AND DESERTS...WINDS WILL GUST OVER 40 MPH AT TIMES ON THE
DESERT SLOPES/FOOTHILLS...INCLUDING SAN GORGONIO PASS. HIGHEST WINDS
WILL BE THU/FRI.

MOST MODEL SOLUTIONS HAVE THE TROUGH WEAKENING OVER THE
WEEKEND...BUT WITH SOME LONG-WAVE TROUGHING CONTINUING...SO WHILE
TEMPS WILL INCREASE SOME...MAX TEMPS WILL STAY NEAR OR A LITTLE
BELOW SEASONAL NORMALS. MONSOONAL MOISTURE WILL STAY SOUTH AND EAST
OF THE AREA THROUGH AT LEAST EARLY NEXT WEEK.

&&

.AVIATION...
020300Z...COAST/VALLEYS... LOW CLOUDS WILL SLOWLY DEVELOP OVER THE
COAST...VALLEYS AND INLAND EMPIRE THROUGH 13Z WEDNESDAY. CLOUD BASES
WILL BE BETWEEN 1700 AND 2200 FT MSL...WITH TOPS NEAR 2900 FT MSL.
SUB 3 SM VIS WILL OCCUR WHERE LOW CLOUDS INTERSECT TERRAIN. EXPECT
LOW CLOUDS TO SCT BACK TO THE COAST BETWEEN 16Z AND 18Z WEDNESDAY.
ADDITIONAL BKN TO SCT HIGH CLOUD COVER AOA 20000 FT MSL WILL
CONTINUE THROUGH 00Z THURSDAY. A FEW LOW CLOUDS MAY LINGER ALONG THE
COAST AND LIGHT SEA BREEZES WILL PREVAIL AT THE COASTAL TAF SITES
BETWEEN 18Z WEDNESDAY AND 00Z THRUSDAY.

MTNS/DESERTS...SCT TO BKN CLOUDS AOA 20000 FT MSL...WITH
UNRESTRICTED VIS THROUGH 06Z THURSDAY.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY
EVENING.

&&

.BEACHES...
800 PM... A MIX OF SOUTHWEST SWELLS FROM HURRICANE ACTIVITY OVER THE
TROPICS WILL CONTINUE AT LOCAL BEACHES THROUGH THE DAY ON
WEDNESDAY...PRODUCING ELEVATED SURF AND STRONG RIP CURRENTS. THE
HIGHEST SURF OF 3-4 FEET WILL OCCUR TONIGHT AND WEDNESDAY WITH MAX
SETS TO 5 FT ALONG SOUTHWEST FACING BEACHES NORTH OF OCEANSIDE. THE
SOUTHERLY SWELL WILL SUBSIDE SOME THURSDAY THROUGH EARLY
SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL ARRIVES AT
LOCAL BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE/BEACHES...ALBRIGHT





000
FXUS66 KSGX 020433
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR AND
COOLER WEATHER THIS WEEK...WITH NIGHT AND MORNING COASTAL LOW CLOUDS
EXTENDING WELL INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS WILL
DEVELOP EACH AFTERNOON AND EVENING ALONG DESERT MOUNTAIN SLOPES AND
THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER WEATHER WILL OCCUR THIS
WEEKEND...WITH A MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

AREAS OF LOW CLOUDS WERE ALONG THE COAST WITH QUITE A LOT OF HIGH
CLOUDS OVER THE REGION...ASSOCIATED WITH A LOW OFF THE COAST. MARINE
INVERSION BASE WAS AROUND 2100 FEET. A LITTLE BIT OF AN EDDY
CONTINUES...BUT WEAKER THAN THE ONE MONDAY NIGHT. HIGH CLOUDS WILL
CONTINUE TO DRIFT OVER THE REGION THE REST OF THE NIGHT...WITH LOW
CLOUDS SPREADING INTO THE VALLEYS.

THE LOW PRESSURE TROUGH WILL CONTINUE TO DEEP OVER THE WEST COAST
THE NEXT FEW DAYS...ABSORBING THE UPPER LOW ABOUT 300 MILES OFF THE
COAST. THE MOISTURE WITH THAT UPPER LOW IS ABOVE 500 MB...SO NO
PRECIPITATION SHOULD OCCUR WITH THAT. TEMPERATURES WILL CONTINUE TO
LOWER THE NEXT FEW DAYS AND COULD GET AS MUCH AS 10-15 DEG F BELOW
NORMAL IN THE VALLEYS FOR MAX TEMPS...THOUGH LESS IN OTHER
AREAS...AND MIN TEMPS WILL STAY A LITTLE ABOVE NORMAL NEAR THE COAST
DUE TO SEA SURFACE TEMPERATURES 3-5 DEG F ABOVE NORMAL. THERE WILL
BE A COASTAL EDDY AT TIMES...ESPECIALLY THU/FRI...AND THAT WILL
COMBINE WITH LOWER HEIGHTS TO DEEPEN THE MARINE FURTHER THEN. THERE
COULD POTENTIALLY BE LOCAL DRIZZLE WEST OF THE MOUNTAINS BY FRI
MORNING WITH THE MARINE LAYER LIKELY BEING 3000-3500 FEET DEEP WITH
AN EDDY. DUE TO THE ONSHORE FLOW AND THERMAL GRADIENT BETWEEN THE
VALLEYS AND DESERTS...WINDS WILL GUST OVER 40 MPH AT TIMES ON THE
DESERT SLOPES/FOOTHILLS...INCLUDING SAN GORGONIO PASS. HIGHEST WINDS
WILL BE THU/FRI.

MOST MODEL SOLUTIONS HAVE THE TROUGH WEAKENING OVER THE
WEEKEND...BUT WITH SOME LONG-WAVE TROUGHING CONTINUING...SO WHILE
TEMPS WILL INCREASE SOME...MAX TEMPS WILL STAY NEAR OR A LITTLE
BELOW SEASONAL NORMALS. MONSOONAL MOISTURE WILL STAY SOUTH AND EAST
OF THE AREA THROUGH AT LEAST EARLY NEXT WEEK.

&&

.AVIATION...
020300Z...COAST/VALLEYS... LOW CLOUDS WILL SLOWLY DEVELOP OVER THE
COAST...VALLEYS AND INLAND EMPIRE THROUGH 13Z WEDNESDAY. CLOUD BASES
WILL BE BETWEEN 1700 AND 2200 FT MSL...WITH TOPS NEAR 2900 FT MSL.
SUB 3 SM VIS WILL OCCUR WHERE LOW CLOUDS INTERSECT TERRAIN. EXPECT
LOW CLOUDS TO SCT BACK TO THE COAST BETWEEN 16Z AND 18Z WEDNESDAY.
ADDITIONAL BKN TO SCT HIGH CLOUD COVER AOA 20000 FT MSL WILL
CONTINUE THROUGH 00Z THURSDAY. A FEW LOW CLOUDS MAY LINGER ALONG THE
COAST AND LIGHT SEA BREEZES WILL PREVAIL AT THE COASTAL TAF SITES
BETWEEN 18Z WEDNESDAY AND 00Z THRUSDAY.

MTNS/DESERTS...SCT TO BKN CLOUDS AOA 20000 FT MSL...WITH
UNRESTRICTED VIS THROUGH 06Z THURSDAY.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SUNDAY
EVENING.

&&

.BEACHES...
800 PM... A MIX OF SOUTHWEST SWELLS FROM HURRICANE ACTIVITY OVER THE
TROPICS WILL CONTINUE AT LOCAL BEACHES THROUGH THE DAY ON
WEDNESDAY...PRODUCING ELEVATED SURF AND STRONG RIP CURRENTS. THE
HIGHEST SURF OF 3-4 FEET WILL OCCUR TONIGHT AND WEDNESDAY WITH MAX
SETS TO 5 FT ALONG SOUTHWEST FACING BEACHES NORTH OF OCEANSIDE. THE
SOUTHERLY SWELL WILL SUBSIDE SOME THURSDAY THROUGH EARLY
SATURDAY..BEFORE A LONG PERIOD SOUTHERN HEMISPHERE SWELL ARRIVES AT
LOCAL BEACHES EARLY NEXT WEEK.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE/BEACHES...ALBRIGHT




000
FXUS66 KSGX 012020
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
120 PM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/1200 UTC ECMWF AND GFS ARE IN RELATIVELY GOOD AGREEMENT
THROUGH THE LONG-TERM.

AT 1 PM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A VERY WEAK UPPER-LEVEL LOW
AROUND 230 MILES SW OF POINT CONCEPTION...AND A WEAK UPPER-LEVEL
RIDGE OVER WESTERN TX. VISIBLE SATELLITE SHOWED HIGH CLOUDS OVER
THE REGION...AND SOME LOW CLOUDS OVER THE COASTAL WATERS.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES AND ALONG
DESERT MOUNTAIN SLOPES EACH AFTERNOON AND EVENING. HIGHS WILL BE
NEAR NORMAL ALONG THE COAST AND IN THE HIGH DESERTS...AND RANGE
FROM 5 TO 20 DEG F BELOW SEASONAL NORMALS FOR OTHER INLAND
AREAS...ESPECIALLY IN THE TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...WITH ANOTHER TROUGH
ANCHORING ALONG THE WEST COAST EARLY NEXT WEEK. THIS WILL HELP TO
CREATE A MODERATE MARINE LAYER...AND RAISE FORECAST HIGH
TEMPERATURES CLOSER TO SEASONAL NORMALS.

&&

.AVIATION...
012000Z...COAST/VALLEYS... SCT025-030 BKN200 AT THE COAST
THIS AFTERNOON BECOMING BKN-OVC025-030 TOPS 035 THIS EVENING AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY.
VISIBILITIES WILL BE P6SM AT THE THE COASTAL AIRPORTS. LOWER
VIS OF 4-6SM NEAR THE FOOTHILLS WHERE CLOUDS INTERSECT TERRAIN.
SKIES CLEARING BACK TO THE COAST BETWEEN 15-19Z WEDNESDAY.

MTNS/DESERTS...SCT-BKN200 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
100 PM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TONIGHT AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF
2-4 FEET WILL OCCUR TONIGHT AND WEDNESDAY WITH MAX SETS TO 5 FT ON
SOUTHWEST FACING BEACHES.

THIS WEEKEND A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E
HAS THE POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE





000
FXUS66 KSGX 012020
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
120 PM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/1200 UTC ECMWF AND GFS ARE IN RELATIVELY GOOD AGREEMENT
THROUGH THE LONG-TERM.

AT 1 PM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...A VERY WEAK UPPER-LEVEL LOW
AROUND 230 MILES SW OF POINT CONCEPTION...AND A WEAK UPPER-LEVEL
RIDGE OVER WESTERN TX. VISIBLE SATELLITE SHOWED HIGH CLOUDS OVER
THE REGION...AND SOME LOW CLOUDS OVER THE COASTAL WATERS.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES AND ALONG
DESERT MOUNTAIN SLOPES EACH AFTERNOON AND EVENING. HIGHS WILL BE
NEAR NORMAL ALONG THE COAST AND IN THE HIGH DESERTS...AND RANGE
FROM 5 TO 20 DEG F BELOW SEASONAL NORMALS FOR OTHER INLAND
AREAS...ESPECIALLY IN THE TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...WITH ANOTHER TROUGH
ANCHORING ALONG THE WEST COAST EARLY NEXT WEEK. THIS WILL HELP TO
CREATE A MODERATE MARINE LAYER...AND RAISE FORECAST HIGH
TEMPERATURES CLOSER TO SEASONAL NORMALS.

&&

.AVIATION...
012000Z...COAST/VALLEYS... SCT025-030 BKN200 AT THE COAST
THIS AFTERNOON BECOMING BKN-OVC025-030 TOPS 035 THIS EVENING AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY.
VISIBILITIES WILL BE P6SM AT THE THE COASTAL AIRPORTS. LOWER
VIS OF 4-6SM NEAR THE FOOTHILLS WHERE CLOUDS INTERSECT TERRAIN.
SKIES CLEARING BACK TO THE COAST BETWEEN 15-19Z WEDNESDAY.

MTNS/DESERTS...SCT-BKN200 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
100 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
100 PM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TONIGHT AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF
2-4 FEET WILL OCCUR TONIGHT AND WEDNESDAY WITH MAX SETS TO 5 FT ON
SOUTHWEST FACING BEACHES.

THIS WEEKEND A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E
HAS THE POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE




000
FXUS66 KSGX 011624
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
924 AM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/0000 UTC ECMWF AND 01/0600 GFS ARE IN GOOD AGREEMENT IN THE
SHORT-TERM...AND DIFFER IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...WITH DEEP LOW PRESSURE JUST
OFF THE COAST OF CENTRAL BRITISH COLUMBIA AND A VERY WEAK LOW
AROUND 250 MILES SW OF POINT CONCEPTION. VISIBLE SATELLITE SHOWED
A DEEP MARINE LAYER...WITH LOW CLOUDS CLEARING OVER INLAND
AREAS...AND SOME HIGH CLOUDS OVER THE COASTAL WATERS. THE 01/1200
UTC KNKX SOUNDING SHOWED AN 8 DEG C MARINE LAYER INVERSION...AND A
CALCULATED PRECIPITABLE WATER OF 0.69 INCHES.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES EACH
AFTERNOON AND EVENING. HIGHS WILL BE NEAR NORMAL ALONG THE COAST
AND IN THE HIGH DESERTS...AND RANGE FROM 5 TO 20 DEG F BELOW
SEASONAL NORMALS FOR OTHER INLAND AREAS...ESPECIALLY IN THE
TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...HELPING TO CREATE A
SHALLOWER MARINE LAYER...AND RAISE FORECAST HIGH TEMPERATURES
CLOSER TO SEASONAL NORMALS. FOR EARLY NEXT WEEK...THE GFS DEVELOPS
A WEAK UPPER-LEVEL LOW JUST OFFSHORE OF SW CA...WHILE THE ECMWF
MAINTAINS A TROUGH ALONG THE WEST COAST WITH HIGHER HEIGHTS OVER
SW CA COMPARED TO THE GFS. CONFIDENCE IS LEANING TOWARDS THE
ECMWF SOLUTION...WHICH WOULD YIELD NEAR NORMAL HIGHS AND A
MODERATELY SHALLOW MARINE LAYER EARLY NEXT WEEK WITH CONTINUED DRY
WEATHER.

&&

.AVIATION...
011600Z...COAST/VALLEYS... BKN-OVC020-025 TOPS 030-035 CLEARING TO
THE COASTLINE THROUGH 19Z. AFT 19Z SCT030 BKN150.

AFT 02Z...BKN-OVC025-030 TOPS 030 RETURNING TO COASTAL TAF SITES AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY. P6SM VIS
XCP OVER THE FOOTHILLS WHERE THE CLOUDS INTERSECT TERRAIN.

MTNS/DESERTS...SCT-BKN150 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
900 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
900 AM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TODAY AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF 3-4
FEET WILL BE TODAY AND WEDNESDAY WITH SETS TO 6 FT ON SOUTHWEST
FACING BEACHES.

A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E HAS THE
POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES OVER THE
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE





000
FXUS66 KSGX 011624
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
924 AM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/0000 UTC ECMWF AND 01/0600 GFS ARE IN GOOD AGREEMENT IN THE
SHORT-TERM...AND DIFFER IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...WITH DEEP LOW PRESSURE JUST
OFF THE COAST OF CENTRAL BRITISH COLUMBIA AND A VERY WEAK LOW
AROUND 250 MILES SW OF POINT CONCEPTION. VISIBLE SATELLITE SHOWED
A DEEP MARINE LAYER...WITH LOW CLOUDS CLEARING OVER INLAND
AREAS...AND SOME HIGH CLOUDS OVER THE COASTAL WATERS. THE 01/1200
UTC KNKX SOUNDING SHOWED AN 8 DEG C MARINE LAYER INVERSION...AND A
CALCULATED PRECIPITABLE WATER OF 0.69 INCHES.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES EACH
AFTERNOON AND EVENING. HIGHS WILL BE NEAR NORMAL ALONG THE COAST
AND IN THE HIGH DESERTS...AND RANGE FROM 5 TO 20 DEG F BELOW
SEASONAL NORMALS FOR OTHER INLAND AREAS...ESPECIALLY IN THE
TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...HELPING TO CREATE A
SHALLOWER MARINE LAYER...AND RAISE FORECAST HIGH TEMPERATURES
CLOSER TO SEASONAL NORMALS. FOR EARLY NEXT WEEK...THE GFS DEVELOPS
A WEAK UPPER-LEVEL LOW JUST OFFSHORE OF SW CA...WHILE THE ECMWF
MAINTAINS A TROUGH ALONG THE WEST COAST WITH HIGHER HEIGHTS OVER
SW CA COMPARED TO THE GFS. CONFIDENCE IS LEANING TOWARDS THE
ECMWF SOLUTION...WHICH WOULD YIELD NEAR NORMAL HIGHS AND A
MODERATELY SHALLOW MARINE LAYER EARLY NEXT WEEK WITH CONTINUED DRY
WEATHER.

&&

.AVIATION...
011600Z...COAST/VALLEYS... BKN-OVC020-025 TOPS 030-035 CLEARING TO
THE COASTLINE THROUGH 19Z. AFT 19Z SCT030 BKN150.

AFT 02Z...BKN-OVC025-030 TOPS 030 RETURNING TO COASTAL TAF SITES AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY. P6SM VIS
XCP OVER THE FOOTHILLS WHERE THE CLOUDS INTERSECT TERRAIN.

MTNS/DESERTS...SCT-BKN150 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
900 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
900 AM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TODAY AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF 3-4
FEET WILL BE TODAY AND WEDNESDAY WITH SETS TO 6 FT ON SOUTHWEST
FACING BEACHES.

A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E HAS THE
POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES OVER THE
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE




000
FXUS66 KSGX 011624
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
924 AM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/0000 UTC ECMWF AND 01/0600 GFS ARE IN GOOD AGREEMENT IN THE
SHORT-TERM...AND DIFFER IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...WITH DEEP LOW PRESSURE JUST
OFF THE COAST OF CENTRAL BRITISH COLUMBIA AND A VERY WEAK LOW
AROUND 250 MILES SW OF POINT CONCEPTION. VISIBLE SATELLITE SHOWED
A DEEP MARINE LAYER...WITH LOW CLOUDS CLEARING OVER INLAND
AREAS...AND SOME HIGH CLOUDS OVER THE COASTAL WATERS. THE 01/1200
UTC KNKX SOUNDING SHOWED AN 8 DEG C MARINE LAYER INVERSION...AND A
CALCULATED PRECIPITABLE WATER OF 0.69 INCHES.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES EACH
AFTERNOON AND EVENING. HIGHS WILL BE NEAR NORMAL ALONG THE COAST
AND IN THE HIGH DESERTS...AND RANGE FROM 5 TO 20 DEG F BELOW
SEASONAL NORMALS FOR OTHER INLAND AREAS...ESPECIALLY IN THE
TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...HELPING TO CREATE A
SHALLOWER MARINE LAYER...AND RAISE FORECAST HIGH TEMPERATURES
CLOSER TO SEASONAL NORMALS. FOR EARLY NEXT WEEK...THE GFS DEVELOPS
A WEAK UPPER-LEVEL LOW JUST OFFSHORE OF SW CA...WHILE THE ECMWF
MAINTAINS A TROUGH ALONG THE WEST COAST WITH HIGHER HEIGHTS OVER
SW CA COMPARED TO THE GFS. CONFIDENCE IS LEANING TOWARDS THE
ECMWF SOLUTION...WHICH WOULD YIELD NEAR NORMAL HIGHS AND A
MODERATELY SHALLOW MARINE LAYER EARLY NEXT WEEK WITH CONTINUED DRY
WEATHER.

&&

.AVIATION...
011600Z...COAST/VALLEYS... BKN-OVC020-025 TOPS 030-035 CLEARING TO
THE COASTLINE THROUGH 19Z. AFT 19Z SCT030 BKN150.

AFT 02Z...BKN-OVC025-030 TOPS 030 RETURNING TO COASTAL TAF SITES AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY. P6SM VIS
XCP OVER THE FOOTHILLS WHERE THE CLOUDS INTERSECT TERRAIN.

MTNS/DESERTS...SCT-BKN150 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
900 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
900 AM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TODAY AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF 3-4
FEET WILL BE TODAY AND WEDNESDAY WITH SETS TO 6 FT ON SOUTHWEST
FACING BEACHES.

A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E HAS THE
POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES OVER THE
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE




000
FXUS66 KSGX 011624
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
924 AM PDT TUE SEP 1 2015

.SYNOPSIS...
AN UPPER-LEVEL TROUGH ALONG THE WEST COAST WILL CONTINUE FAIR
AND COOLER WEATHER THIS WEEK...WITH NIGHT/MORNING COASTAL LOW
CLOUDS/FOG EXTENDING FAR INTO THE VALLEYS. LOCALLY GUSTY WEST WINDS
WILL DEVELOP EACH AFTERNOON/EVENING ALONG DESERT MOUNTAIN SLOPES
AND THROUGH MOUNTAIN PASSES. SLIGHTLY WARMER THIS WEEKEND...WITH A
MORE SHALLOW MARINE LAYER.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

THE 01/0000 UTC ECMWF AND 01/0600 GFS ARE IN GOOD AGREEMENT IN THE
SHORT-TERM...AND DIFFER IN THE LONG-TERM.

AT 9 AM PDT...WATER VAPOR SATELLITE IMAGERY DISPLAYED AN UPPER-
LEVEL TROUGH ALONG THE WEST COAST...WITH DEEP LOW PRESSURE JUST
OFF THE COAST OF CENTRAL BRITISH COLUMBIA AND A VERY WEAK LOW
AROUND 250 MILES SW OF POINT CONCEPTION. VISIBLE SATELLITE SHOWED
A DEEP MARINE LAYER...WITH LOW CLOUDS CLEARING OVER INLAND
AREAS...AND SOME HIGH CLOUDS OVER THE COASTAL WATERS. THE 01/1200
UTC KNKX SOUNDING SHOWED AN 8 DEG C MARINE LAYER INVERSION...AND A
CALCULATED PRECIPITABLE WATER OF 0.69 INCHES.

THE TROUGH ALONG THE COAST WILL DOMINATE THE WEATHER OVER SW CA
THROUGH THE REST OF THE WORK WEEK...AND PULL IN DRY AIR FROM THE
SOUTHWEST THROUGH THE PERIOD. LOWERING HEIGHTS THROUGH FRIDAY
WILL CREATE A DEEP MARINE LAYER...WITH NIGHT/MORNING LOW
CLOUDS/FOG DEVELOPING WELL INLAND INTO THE VALLEYS AND REACHING
THE COASTAL MOUNTAIN SLOPES EACH NIGHT. ONSHORE SURFACE PRESSURE
GRADIENTS FROM THE COAST TO THE CA/AZ BORDER NEAR 5 MB WILL CREATE
WESTERLY WIND GUSTS NEAR 45 MPH THROUGH MOUNTAINS PASSES EACH
AFTERNOON AND EVENING. HIGHS WILL BE NEAR NORMAL ALONG THE COAST
AND IN THE HIGH DESERTS...AND RANGE FROM 5 TO 20 DEG F BELOW
SEASONAL NORMALS FOR OTHER INLAND AREAS...ESPECIALLY IN THE
TEMECULA/MURRIETA AREA.

HEIGHTS WILL BUILD SLIGHTLY OVER THE WEEKEND...HELPING TO CREATE A
SHALLOWER MARINE LAYER...AND RAISE FORECAST HIGH TEMPERATURES
CLOSER TO SEASONAL NORMALS. FOR EARLY NEXT WEEK...THE GFS DEVELOPS
A WEAK UPPER-LEVEL LOW JUST OFFSHORE OF SW CA...WHILE THE ECMWF
MAINTAINS A TROUGH ALONG THE WEST COAST WITH HIGHER HEIGHTS OVER
SW CA COMPARED TO THE GFS. CONFIDENCE IS LEANING TOWARDS THE
ECMWF SOLUTION...WHICH WOULD YIELD NEAR NORMAL HIGHS AND A
MODERATELY SHALLOW MARINE LAYER EARLY NEXT WEEK WITH CONTINUED DRY
WEATHER.

&&

.AVIATION...
011600Z...COAST/VALLEYS... BKN-OVC020-025 TOPS 030-035 CLEARING TO
THE COASTLINE THROUGH 19Z. AFT 19Z SCT030 BKN150.

AFT 02Z...BKN-OVC025-030 TOPS 030 RETURNING TO COASTAL TAF SITES AND
SPREADING INTO THE INLAND VALLEYS THROUGH 15Z WEDNESDAY. P6SM VIS
XCP OVER THE FOOTHILLS WHERE THE CLOUDS INTERSECT TERRAIN.

MTNS/DESERTS...SCT-BKN150 WITH UNRESTRICTED VIS THROUGH WEDNESDAY.

&&

.MARINE...
900 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...
900 AM...SOUTH-SOUTHWEST SWELLS FROM HURRICANE JIMENA WILL PRODUCE
ELEVATED SURF AND STRONG RIP CURRENTS TO SO-CAL BEACHES TODAY AND
WEDNESDAY...EASING A BIT ON THURSDAY AND FRIDAY. HIGHEST SURF OF 3-4
FEET WILL BE TODAY AND WEDNESDAY WITH SETS TO 6 FT ON SOUTHWEST
FACING BEACHES.

A FRESH SOUTH SWELL FROM TROPICAL DEPRESSION FOURTEEN-E HAS THE
POTENTIAL TO BRING EVEN HIGHER SURF TO SO-CAL BEACHES OVER THE
WEEKEND.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.
&&

$$

PUBLIC...JJT
AVIATION/MARINE/BEACHES...MOEDE





000
FXUS66 KSGX 010931 CCA
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 AM PDT TUE SEP 1 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
FAIR AND COOLER WEATHER THIS WEEK FEATURING NIGHT AND MORNING
COASTAL CLOUDS EXTENDING INTO THE VALLEYS. BRISK ONSHORE FLOW WILL
BRING LOCALLY GUSTY WINDS TO THE DESERT MOUNTAIN SLOPES DURING THE
LATE AFTERNOONS AND EVENINGS. THE TROUGH OF LOW PRESSURE WILL WEAKEN
A BIT DURING THE HOLIDAY WEEKEND...BRINGING A LITTLE WARMER WEATHER
BY LABOR DAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS MOVED INTO THE SOUTHERN INLAND EMPIRE RATHER
SMOOTHLY OVERNIGHT AS A DECENT COASTAL EDDY SPINS OFF THE COAST.
MOST OF THE VALLEYS WILL BECOME CLOUDY BY SUNRISE. THE CLOUDS WILL
CLEAR BY LATE MORNING...BUT VARIABLE HIGH CLOUDS WILL OCCASIONALLY
FILTER THE SUNSHINE TODAY THROUGH WEDNESDAY. A LOW PRESSURE TROUGH
WILL REMAIN RATHER STATIONARY ALONG THE WEST COAST WITH LITTLE
VARIATION FOR THE REST OF THE WEEK. SO EXPECT A VERY SIMILAR MARINE
LAYER DEPTH AND EXTENT OF COASTAL CLOUDS DURING THE NIGHTS AND
MORNINGS. MAX TEMPERATURES WILL BE COOLER THAN AVERAGE DURING THIS
TIME...BUT CLOUDS AND A REALLY WARM SEA SURFACE WILL KEEP MIN TEMPS
RATHER HIGH NEAR THE COAST. THE ONSHORE PRESSURE GRADIENT WILL BE
SUFFICIENT TO PRODUCE BRISK WESTERLY WINDS THROUGH THE USUAL POCKETS
OF MOUNTAIN PASSES AND ADJACENT DESERTS. GUSTS COULD EXCEED 40 MPH
AT THE TOP SPOTS SUCH AS WHITEWATER EACH EVENING. ON SUNDAY AND
MONDAY THE TROUGH RETREATS A LITTLE ALLOWING A HIGH PRESSURE RIDGE
TO STRENGTHEN OVER THE SOUTHWEST. THIS WILL BRING A MODEST WARMING
TREND NEXT WEEK AND LESS EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY.
ANY MOISTURE THAT COULD BRING RAIN STAYS AWAY FROM SOUTHERN
CALIFORNIA DESPITE A BUSY TROPICAL SEASON WAY DOWN SOUTH.

&&

.AVIATION...

010830Z...COAST/VALLEYS...WIDESPREAD LOW CLOUDS WITH BASES 1700-2000
FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO SPEAD INLAND
THROUGH 13Z THIS MORNING. LOW CLOUDS HAVE ALREADY REACHED PORTIONS
OF THE INLAND EMPIRE...INCLUDING KONT. MINOR VIS RESTRICTIONS OF 4-6
SM WITH BR WILL BE POSSIBLE AT TIMES BETWEEN 10Z AND 18Z. OTHERWISE
VIS BLO 3 SM WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING MOSLY CLEAR SKIES THIS AFTERNOON. LOW CLOUDS WITH
BASES 1800-2200 FT MSL AND TOPS TO 2700 FT MSL WILL BEGIN RETURNING
TO COASTAL TAF SITES BETWEEN 01Z ANS 03Z WED.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY NIGHT.

&&

.MARINE...

130 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...

130 AM...SOUTH SWELLS FROM CYCLONES OVER THE TROPICAL EAST PACIFIC
WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT RISK TO
LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL OCCUR TODAY
AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL SETS TO 6 FT
ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND WEAKER RIP
CURRENTS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE A
LONG PERIOD SOUTH SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG





000
FXUS66 KSGX 010931 CCA
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 AM PDT TUE SEP 1 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
FAIR AND COOLER WEATHER THIS WEEK FEATURING NIGHT AND MORNING
COASTAL CLOUDS EXTENDING INTO THE VALLEYS. BRISK ONSHORE FLOW WILL
BRING LOCALLY GUSTY WINDS TO THE DESERT MOUNTAIN SLOPES DURING THE
LATE AFTERNOONS AND EVENINGS. THE TROUGH OF LOW PRESSURE WILL WEAKEN
A BIT DURING THE HOLIDAY WEEKEND...BRINGING A LITTLE WARMER WEATHER
BY LABOR DAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS MOVED INTO THE SOUTHERN INLAND EMPIRE RATHER
SMOOTHLY OVERNIGHT AS A DECENT COASTAL EDDY SPINS OFF THE COAST.
MOST OF THE VALLEYS WILL BECOME CLOUDY BY SUNRISE. THE CLOUDS WILL
CLEAR BY LATE MORNING...BUT VARIABLE HIGH CLOUDS WILL OCCASIONALLY
FILTER THE SUNSHINE TODAY THROUGH WEDNESDAY. A LOW PRESSURE TROUGH
WILL REMAIN RATHER STATIONARY ALONG THE WEST COAST WITH LITTLE
VARIATION FOR THE REST OF THE WEEK. SO EXPECT A VERY SIMILAR MARINE
LAYER DEPTH AND EXTENT OF COASTAL CLOUDS DURING THE NIGHTS AND
MORNINGS. MAX TEMPERATURES WILL BE COOLER THAN AVERAGE DURING THIS
TIME...BUT CLOUDS AND A REALLY WARM SEA SURFACE WILL KEEP MIN TEMPS
RATHER HIGH NEAR THE COAST. THE ONSHORE PRESSURE GRADIENT WILL BE
SUFFICIENT TO PRODUCE BRISK WESTERLY WINDS THROUGH THE USUAL POCKETS
OF MOUNTAIN PASSES AND ADJACENT DESERTS. GUSTS COULD EXCEED 40 MPH
AT THE TOP SPOTS SUCH AS WHITEWATER EACH EVENING. ON SUNDAY AND
MONDAY THE TROUGH RETREATS A LITTLE ALLOWING A HIGH PRESSURE RIDGE
TO STRENGTHEN OVER THE SOUTHWEST. THIS WILL BRING A MODEST WARMING
TREND NEXT WEEK AND LESS EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY.
ANY MOISTURE THAT COULD BRING RAIN STAYS AWAY FROM SOUTHERN
CALIFORNIA DESPITE A BUSY TROPICAL SEASON WAY DOWN SOUTH.

&&

.AVIATION...

010830Z...COAST/VALLEYS...WIDESPREAD LOW CLOUDS WITH BASES 1700-2000
FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO SPEAD INLAND
THROUGH 13Z THIS MORNING. LOW CLOUDS HAVE ALREADY REACHED PORTIONS
OF THE INLAND EMPIRE...INCLUDING KONT. MINOR VIS RESTRICTIONS OF 4-6
SM WITH BR WILL BE POSSIBLE AT TIMES BETWEEN 10Z AND 18Z. OTHERWISE
VIS BLO 3 SM WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING MOSLY CLEAR SKIES THIS AFTERNOON. LOW CLOUDS WITH
BASES 1800-2200 FT MSL AND TOPS TO 2700 FT MSL WILL BEGIN RETURNING
TO COASTAL TAF SITES BETWEEN 01Z ANS 03Z WED.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY NIGHT.

&&

.MARINE...

130 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...

130 AM...SOUTH SWELLS FROM CYCLONES OVER THE TROPICAL EAST PACIFIC
WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT RISK TO
LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL OCCUR TODAY
AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL SETS TO 6 FT
ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND WEAKER RIP
CURRENTS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE A
LONG PERIOD SOUTH SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG




000
FXUS66 KSGX 010918
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 AM PDT TUE SEP 1 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
FAIR AND COOLER WEATHER THIS WEEK FEATURING NIGHT AND MORNING
COASTAL CLOUDS EXTENDING INTO THE VALLEYS. BRISK ONSHORE FLOW WILL
BRING LOCALLY GUSTY WINDS TO THE DESERT MOUNTAIN SLOPES DURING THE
LATE AFTERNOONS AND EVENINGS. THE TROUGH OF LOW PRESSURE WILL WEAKEN
A BIT DURING THE HOLIDAY WEEKEND...BRINGING A LITTLE WARMER WEATHER
BY LABOR DAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS MOVED INTO THE SOUTHERN INLAND EMPIRE RATHER
SMOOTHLY OVERNIGHT AS A DECENT COASTAL EDDY SPINS OFF THE COAST.
MOST OF THE VALLEYS WILL BECOME CLOUDY BY SUNRISE. THE CLOUDS WILL
CLEAR BY LATE MORNING...BUT VARIABLE HIGH CLOUDS WILL OCCASIONALLY
FILTER THE SUNSHINE TODAY THROUGH WEDNESDAY. A LOW PRESSURE TROUGH
WILL REMAIN RATHER STATIONARY ALONG THE WEST COAST WITH LITTLE
VARIATION FOR THE REST OF THE WEEK. SO EXPECT A VERY SIMILAR MARINE
LAYER DEPTH AND EXTENT OF COASTAL CLOUDS DURING THE NIGHTS AND
MORNINGS. MAX TEMPERATURES WILL BE COOLER THAN AVERAGE DURING THIS
TIME...BUT CLOUDS AND A REALLY WARM SEA SURFACE WILL KEEP MIN TEMPS
RATHER HIGH NEAR THE COAST. ON SUNDAY AND MONDAY THE TROUGH RETREATS
A LITTLE ALLOWING A HIGH PRESSURE RIDGE TO STRENGTHEN OVER THE
SOUTHWEST. THIS WILL BRING A MODEST WARMING TREND NEXT WEEK AND LESS
EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY. ANY MOISTURE THAT COULD
BRING RAIN STAYS AWAY FROM SOUTHERN CALIFORNIA DESPITE A BUSY
TROPICAL SEASON WAY DOWN SOUTH.

&&

.AVIATION...

010830Z...COAST/VALLEYS...WIDESPREAD LOW CLOUDS WITH BASES 1700-2000
FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO SPEAD INLAND
THROUGH 13Z THIS MORNING. LOW CLOUDS HAVE ALREADY REACHED PORTIONS
OF THE INLAND EMPIRE...INCLUDING KONT. MINOR VIS RESTRICTIONS OF 4-6
SM WITH BR WILL BE POSSIBLE AT TIMES BETWEEN 10Z AND 18Z. OTHERWISE
VIS BLO 3 SM WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING MOSLY CLEAR SKIES THIS AFTERNOON. LOW CLOUDS WITH
BASES 1800-2200 FT MSL AND TOPS TO 2700 FT MSL WILL BEGIN RETURNING
TO COASTAL TAF SITES BETWEEN 01Z ANS 03Z WED.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY NIGHT.

&&

.MARINE...

130 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...

130 AM...SOUTH SWELLS FROM CYCLONES OVER THE TROPICAL EAST PACIFIC
WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT RISK TO
LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL OCCUR TODAY
AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL SETS TO 6 FT
ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND WEAKER RIP
CURRENTS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE A
LONG PERIOD SOUTH SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG




000
FXUS66 KSGX 010918
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 AM PDT TUE SEP 1 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
FAIR AND COOLER WEATHER THIS WEEK FEATURING NIGHT AND MORNING
COASTAL CLOUDS EXTENDING INTO THE VALLEYS. BRISK ONSHORE FLOW WILL
BRING LOCALLY GUSTY WINDS TO THE DESERT MOUNTAIN SLOPES DURING THE
LATE AFTERNOONS AND EVENINGS. THE TROUGH OF LOW PRESSURE WILL WEAKEN
A BIT DURING THE HOLIDAY WEEKEND...BRINGING A LITTLE WARMER WEATHER
BY LABOR DAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS MOVED INTO THE SOUTHERN INLAND EMPIRE RATHER
SMOOTHLY OVERNIGHT AS A DECENT COASTAL EDDY SPINS OFF THE COAST.
MOST OF THE VALLEYS WILL BECOME CLOUDY BY SUNRISE. THE CLOUDS WILL
CLEAR BY LATE MORNING...BUT VARIABLE HIGH CLOUDS WILL OCCASIONALLY
FILTER THE SUNSHINE TODAY THROUGH WEDNESDAY. A LOW PRESSURE TROUGH
WILL REMAIN RATHER STATIONARY ALONG THE WEST COAST WITH LITTLE
VARIATION FOR THE REST OF THE WEEK. SO EXPECT A VERY SIMILAR MARINE
LAYER DEPTH AND EXTENT OF COASTAL CLOUDS DURING THE NIGHTS AND
MORNINGS. MAX TEMPERATURES WILL BE COOLER THAN AVERAGE DURING THIS
TIME...BUT CLOUDS AND A REALLY WARM SEA SURFACE WILL KEEP MIN TEMPS
RATHER HIGH NEAR THE COAST. ON SUNDAY AND MONDAY THE TROUGH RETREATS
A LITTLE ALLOWING A HIGH PRESSURE RIDGE TO STRENGTHEN OVER THE
SOUTHWEST. THIS WILL BRING A MODEST WARMING TREND NEXT WEEK AND LESS
EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY. ANY MOISTURE THAT COULD
BRING RAIN STAYS AWAY FROM SOUTHERN CALIFORNIA DESPITE A BUSY
TROPICAL SEASON WAY DOWN SOUTH.

&&

.AVIATION...

010830Z...COAST/VALLEYS...WIDESPREAD LOW CLOUDS WITH BASES 1700-2000
FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO SPEAD INLAND
THROUGH 13Z THIS MORNING. LOW CLOUDS HAVE ALREADY REACHED PORTIONS
OF THE INLAND EMPIRE...INCLUDING KONT. MINOR VIS RESTRICTIONS OF 4-6
SM WITH BR WILL BE POSSIBLE AT TIMES BETWEEN 10Z AND 18Z. OTHERWISE
VIS BLO 3 SM WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING MOSLY CLEAR SKIES THIS AFTERNOON. LOW CLOUDS WITH
BASES 1800-2200 FT MSL AND TOPS TO 2700 FT MSL WILL BEGIN RETURNING
TO COASTAL TAF SITES BETWEEN 01Z ANS 03Z WED.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY NIGHT.

&&

.MARINE...

130 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...

130 AM...SOUTH SWELLS FROM CYCLONES OVER THE TROPICAL EAST PACIFIC
WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT RISK TO
LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL OCCUR TODAY
AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL SETS TO 6 FT
ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND WEAKER RIP
CURRENTS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE A
LONG PERIOD SOUTH SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG




000
FXUS66 KSGX 010918
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
200 AM PDT TUE SEP 1 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
FAIR AND COOLER WEATHER THIS WEEK FEATURING NIGHT AND MORNING
COASTAL CLOUDS EXTENDING INTO THE VALLEYS. BRISK ONSHORE FLOW WILL
BRING LOCALLY GUSTY WINDS TO THE DESERT MOUNTAIN SLOPES DURING THE
LATE AFTERNOONS AND EVENINGS. THE TROUGH OF LOW PRESSURE WILL WEAKEN
A BIT DURING THE HOLIDAY WEEKEND...BRINGING A LITTLE WARMER WEATHER
BY LABOR DAY.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

COASTAL LOW CLOUDS MOVED INTO THE SOUTHERN INLAND EMPIRE RATHER
SMOOTHLY OVERNIGHT AS A DECENT COASTAL EDDY SPINS OFF THE COAST.
MOST OF THE VALLEYS WILL BECOME CLOUDY BY SUNRISE. THE CLOUDS WILL
CLEAR BY LATE MORNING...BUT VARIABLE HIGH CLOUDS WILL OCCASIONALLY
FILTER THE SUNSHINE TODAY THROUGH WEDNESDAY. A LOW PRESSURE TROUGH
WILL REMAIN RATHER STATIONARY ALONG THE WEST COAST WITH LITTLE
VARIATION FOR THE REST OF THE WEEK. SO EXPECT A VERY SIMILAR MARINE
LAYER DEPTH AND EXTENT OF COASTAL CLOUDS DURING THE NIGHTS AND
MORNINGS. MAX TEMPERATURES WILL BE COOLER THAN AVERAGE DURING THIS
TIME...BUT CLOUDS AND A REALLY WARM SEA SURFACE WILL KEEP MIN TEMPS
RATHER HIGH NEAR THE COAST. ON SUNDAY AND MONDAY THE TROUGH RETREATS
A LITTLE ALLOWING A HIGH PRESSURE RIDGE TO STRENGTHEN OVER THE
SOUTHWEST. THIS WILL BRING A MODEST WARMING TREND NEXT WEEK AND LESS
EXTENSIVE COASTAL CLOUDS FOR THE HOLIDAY. ANY MOISTURE THAT COULD
BRING RAIN STAYS AWAY FROM SOUTHERN CALIFORNIA DESPITE A BUSY
TROPICAL SEASON WAY DOWN SOUTH.

&&

.AVIATION...

010830Z...COAST/VALLEYS...WIDESPREAD LOW CLOUDS WITH BASES 1700-2000
FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO SPEAD INLAND
THROUGH 13Z THIS MORNING. LOW CLOUDS HAVE ALREADY REACHED PORTIONS
OF THE INLAND EMPIRE...INCLUDING KONT. MINOR VIS RESTRICTIONS OF 4-6
SM WITH BR WILL BE POSSIBLE AT TIMES BETWEEN 10Z AND 18Z. OTHERWISE
VIS BLO 3 SM WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING MOSLY CLEAR SKIES THIS AFTERNOON. LOW CLOUDS WITH
BASES 1800-2200 FT MSL AND TOPS TO 2700 FT MSL WILL BEGIN RETURNING
TO COASTAL TAF SITES BETWEEN 01Z ANS 03Z WED.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY NIGHT.

&&

.MARINE...

130 AM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH SATURDAY.

&&

.BEACHES...

130 AM...SOUTH SWELLS FROM CYCLONES OVER THE TROPICAL EAST PACIFIC
WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT RISK TO
LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL OCCUR TODAY
AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL SETS TO 6 FT
ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND WEAKER RIP
CURRENTS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE A
LONG PERIOD SOUTH SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MM
AVIATION/MARINE/BEACHES...PG





000
FXUS66 KSGX 010442
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON AUG 31 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
COOLER WEATHER MOST OF THIS WEEK...ALONG WITH NIGHT AND MORNING LOW
CLOUDS IN COASTAL AND VALLEY AREAS. DRY CONDITIONS WILL CONTINUE
THROUGH EARLY NEXT WEEK. ONSHORE FLOW WILL BRING LOCALLY GUSTY WINDS
TO THE DESERT MOUNTAIN SLOPES AND FOOTHILLS DURING THE LATE
AFTERNOONS AND EVENINGS. AS THE TROUGH OF LOW PRESSURE WEAKENS A
BIT...SLIGHT WARMING WILL OCCUR OVER THE LABOR DAY WEEKEND.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT IS A QUIET EVENING WEATHERWISE THIS EVENING...EXCEPT FOR A FEW
WIND GUSTS AROUND 40 MPH IN THE NORMAL WINDIER DESERT MOUNTAIN
SLOPE/FOOTHILL LOCATIONS...INCLUDING SAN GORGONIO PASS...AND
AREAS OF STRATUS ARE MAKING A PUSH INLAND FROM THE COAST. AN EDDY IS
OVER THE COASTAL WATERS NOW...AND SHOWN BY THE 8 KNOT WIND FROM THE
SOUTH AT LINDBERGH FIELD...SO THE CURRENT 2000 FOOT MARINE INVERSION
HEIGHT SHOULD RISE A LITTLE BIT OVERNIGHT AND RESULT IN MOST AREAS
WEST OF THE MOUNTAINS HAVING STRATUS BY AROUND SUNRISE TUESDAY.

THE LOW PRESSURE TROUGH OVER THE WEST COAST WILL BE PERSISTENT MOST
OF THIS WEEK AND BRING A BENIGN WEATHER PATTERN WITH THAT NIGHT AND
MORNING STRATUS USUALLY PUSHING INTO THE VALLEYS...BUT CLEARING MOST
EVERYWHERE EACH DAY AS THE COOLER AIR ALOFT WILL KEEP THE INVERSION
FROM BEING TOO STRONG. MONSOONAL MOISTURE WILL STAY WELL TO THE EAST
AND SOUTHEAST DUE TO WESTERLY/SOUTHWESTERLY FLOW ALOFT. DAILY HIGH
TEMPERATURES WILL MOSTLY BE A LITTLE BELOW NORMAL...THOUGH
NEAR-COASTAL LOWS WILL BE A FEW DEGREES ABOVE NORMAL DUE TO THE
LOCAL SEA SURFACE TEMPERATURES MOSTLY IN THE LOWER TO MID 70S.
ENSEMBLE SOLUTIONS NEXT WEEKEND MOSTLY HAVE THE WEST COAST TROUGH
WEAKENING FOR SOME WARMING AND A MORE SHALLOW MARINE LAYER...THOUGH
MOST SOLUTIONS STILL HAVE SOME TROUGHING CONTINUING. MONSOONAL
MOISTURE WILL CONTINUE TO STAY OUT OF OUR AREA...INCLUDING ANY
ASSOCIATED WITH TROPICAL DEPRESSION 14-E...WHICH SHOULD ALSO STAY
SOUTHEAST OF OUR AREA.

&&

.AVIATION...
010300Z...COAST/VALLEYS...LOW CLOUDS WITH BASES BETWEEN 1600 AND
1900 FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO FILTER INLAND
OVER THE COAST AND VALLEYS THROUGH 13Z TUESDAY. PORTIONS OF THE
INLAND EMPIRE...INCLUDING KONT...MAY SEE MINOR VIS RESTRICTIONS OF 4-
6 SM WITH HZ AT TIMES BETWEEN 10Z AND 18Z TUESDAY. OTHERWISE SUB 3
SM VIS WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING SKC AND LIGHT SEA BREEZES FOR TUESDAY AFTERNOON.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY EVENING.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH FRIDAY.

&&

.BEACHES...
800 PM...A MIXED SOUTHERLY SWELL FROM ACTIVITY OVER THE TROPICAL
PACIFIC WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT
RISK TO LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL
OCCUR TUESDAY AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL
SETS TO 6 FT ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND
WEAKER RIPS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE
A LONG PERIOD SOUTHERLY SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE...ALBRIGHT




000
FXUS66 KSGX 010442
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON AUG 31 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
COOLER WEATHER MOST OF THIS WEEK...ALONG WITH NIGHT AND MORNING LOW
CLOUDS IN COASTAL AND VALLEY AREAS. DRY CONDITIONS WILL CONTINUE
THROUGH EARLY NEXT WEEK. ONSHORE FLOW WILL BRING LOCALLY GUSTY WINDS
TO THE DESERT MOUNTAIN SLOPES AND FOOTHILLS DURING THE LATE
AFTERNOONS AND EVENINGS. AS THE TROUGH OF LOW PRESSURE WEAKENS A
BIT...SLIGHT WARMING WILL OCCUR OVER THE LABOR DAY WEEKEND.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT IS A QUIET EVENING WEATHERWISE THIS EVENING...EXCEPT FOR A FEW
WIND GUSTS AROUND 40 MPH IN THE NORMAL WINDIER DESERT MOUNTAIN
SLOPE/FOOTHILL LOCATIONS...INCLUDING SAN GORGONIO PASS...AND
AREAS OF STRATUS ARE MAKING A PUSH INLAND FROM THE COAST. AN EDDY IS
OVER THE COASTAL WATERS NOW...AND SHOWN BY THE 8 KNOT WIND FROM THE
SOUTH AT LINDBERGH FIELD...SO THE CURRENT 2000 FOOT MARINE INVERSION
HEIGHT SHOULD RISE A LITTLE BIT OVERNIGHT AND RESULT IN MOST AREAS
WEST OF THE MOUNTAINS HAVING STRATUS BY AROUND SUNRISE TUESDAY.

THE LOW PRESSURE TROUGH OVER THE WEST COAST WILL BE PERSISTENT MOST
OF THIS WEEK AND BRING A BENIGN WEATHER PATTERN WITH THAT NIGHT AND
MORNING STRATUS USUALLY PUSHING INTO THE VALLEYS...BUT CLEARING MOST
EVERYWHERE EACH DAY AS THE COOLER AIR ALOFT WILL KEEP THE INVERSION
FROM BEING TOO STRONG. MONSOONAL MOISTURE WILL STAY WELL TO THE EAST
AND SOUTHEAST DUE TO WESTERLY/SOUTHWESTERLY FLOW ALOFT. DAILY HIGH
TEMPERATURES WILL MOSTLY BE A LITTLE BELOW NORMAL...THOUGH
NEAR-COASTAL LOWS WILL BE A FEW DEGREES ABOVE NORMAL DUE TO THE
LOCAL SEA SURFACE TEMPERATURES MOSTLY IN THE LOWER TO MID 70S.
ENSEMBLE SOLUTIONS NEXT WEEKEND MOSTLY HAVE THE WEST COAST TROUGH
WEAKENING FOR SOME WARMING AND A MORE SHALLOW MARINE LAYER...THOUGH
MOST SOLUTIONS STILL HAVE SOME TROUGHING CONTINUING. MONSOONAL
MOISTURE WILL CONTINUE TO STAY OUT OF OUR AREA...INCLUDING ANY
ASSOCIATED WITH TROPICAL DEPRESSION 14-E...WHICH SHOULD ALSO STAY
SOUTHEAST OF OUR AREA.

&&

.AVIATION...
010300Z...COAST/VALLEYS...LOW CLOUDS WITH BASES BETWEEN 1600 AND
1900 FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO FILTER INLAND
OVER THE COAST AND VALLEYS THROUGH 13Z TUESDAY. PORTIONS OF THE
INLAND EMPIRE...INCLUDING KONT...MAY SEE MINOR VIS RESTRICTIONS OF 4-
6 SM WITH HZ AT TIMES BETWEEN 10Z AND 18Z TUESDAY. OTHERWISE SUB 3
SM VIS WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING SKC AND LIGHT SEA BREEZES FOR TUESDAY AFTERNOON.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY EVENING.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH FRIDAY.

&&

.BEACHES...
800 PM...A MIXED SOUTHERLY SWELL FROM ACTIVITY OVER THE TROPICAL
PACIFIC WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT
RISK TO LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL
OCCUR TUESDAY AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL
SETS TO 6 FT ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND
WEAKER RIPS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE
A LONG PERIOD SOUTHERLY SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE...ALBRIGHT





000
FXUS66 KSGX 010442
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON AUG 31 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
COOLER WEATHER MOST OF THIS WEEK...ALONG WITH NIGHT AND MORNING LOW
CLOUDS IN COASTAL AND VALLEY AREAS. DRY CONDITIONS WILL CONTINUE
THROUGH EARLY NEXT WEEK. ONSHORE FLOW WILL BRING LOCALLY GUSTY WINDS
TO THE DESERT MOUNTAIN SLOPES AND FOOTHILLS DURING THE LATE
AFTERNOONS AND EVENINGS. AS THE TROUGH OF LOW PRESSURE WEAKENS A
BIT...SLIGHT WARMING WILL OCCUR OVER THE LABOR DAY WEEKEND.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT IS A QUIET EVENING WEATHERWISE THIS EVENING...EXCEPT FOR A FEW
WIND GUSTS AROUND 40 MPH IN THE NORMAL WINDIER DESERT MOUNTAIN
SLOPE/FOOTHILL LOCATIONS...INCLUDING SAN GORGONIO PASS...AND
AREAS OF STRATUS ARE MAKING A PUSH INLAND FROM THE COAST. AN EDDY IS
OVER THE COASTAL WATERS NOW...AND SHOWN BY THE 8 KNOT WIND FROM THE
SOUTH AT LINDBERGH FIELD...SO THE CURRENT 2000 FOOT MARINE INVERSION
HEIGHT SHOULD RISE A LITTLE BIT OVERNIGHT AND RESULT IN MOST AREAS
WEST OF THE MOUNTAINS HAVING STRATUS BY AROUND SUNRISE TUESDAY.

THE LOW PRESSURE TROUGH OVER THE WEST COAST WILL BE PERSISTENT MOST
OF THIS WEEK AND BRING A BENIGN WEATHER PATTERN WITH THAT NIGHT AND
MORNING STRATUS USUALLY PUSHING INTO THE VALLEYS...BUT CLEARING MOST
EVERYWHERE EACH DAY AS THE COOLER AIR ALOFT WILL KEEP THE INVERSION
FROM BEING TOO STRONG. MONSOONAL MOISTURE WILL STAY WELL TO THE EAST
AND SOUTHEAST DUE TO WESTERLY/SOUTHWESTERLY FLOW ALOFT. DAILY HIGH
TEMPERATURES WILL MOSTLY BE A LITTLE BELOW NORMAL...THOUGH
NEAR-COASTAL LOWS WILL BE A FEW DEGREES ABOVE NORMAL DUE TO THE
LOCAL SEA SURFACE TEMPERATURES MOSTLY IN THE LOWER TO MID 70S.
ENSEMBLE SOLUTIONS NEXT WEEKEND MOSTLY HAVE THE WEST COAST TROUGH
WEAKENING FOR SOME WARMING AND A MORE SHALLOW MARINE LAYER...THOUGH
MOST SOLUTIONS STILL HAVE SOME TROUGHING CONTINUING. MONSOONAL
MOISTURE WILL CONTINUE TO STAY OUT OF OUR AREA...INCLUDING ANY
ASSOCIATED WITH TROPICAL DEPRESSION 14-E...WHICH SHOULD ALSO STAY
SOUTHEAST OF OUR AREA.

&&

.AVIATION...
010300Z...COAST/VALLEYS...LOW CLOUDS WITH BASES BETWEEN 1600 AND
1900 FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO FILTER INLAND
OVER THE COAST AND VALLEYS THROUGH 13Z TUESDAY. PORTIONS OF THE
INLAND EMPIRE...INCLUDING KONT...MAY SEE MINOR VIS RESTRICTIONS OF 4-
6 SM WITH HZ AT TIMES BETWEEN 10Z AND 18Z TUESDAY. OTHERWISE SUB 3
SM VIS WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING SKC AND LIGHT SEA BREEZES FOR TUESDAY AFTERNOON.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY EVENING.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH FRIDAY.

&&

.BEACHES...
800 PM...A MIXED SOUTHERLY SWELL FROM ACTIVITY OVER THE TROPICAL
PACIFIC WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT
RISK TO LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL
OCCUR TUESDAY AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL
SETS TO 6 FT ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND
WEAKER RIPS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE
A LONG PERIOD SOUTHERLY SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE...ALBRIGHT





000
FXUS66 KSGX 010442
AFDSGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 PM PDT MON AUG 31 2015

.SYNOPSIS...
A TROUGH OF LOW PRESSURE ALONG THE WEST COAST WILL CONTINUE TO BRING
COOLER WEATHER MOST OF THIS WEEK...ALONG WITH NIGHT AND MORNING LOW
CLOUDS IN COASTAL AND VALLEY AREAS. DRY CONDITIONS WILL CONTINUE
THROUGH EARLY NEXT WEEK. ONSHORE FLOW WILL BRING LOCALLY GUSTY WINDS
TO THE DESERT MOUNTAIN SLOPES AND FOOTHILLS DURING THE LATE
AFTERNOONS AND EVENINGS. AS THE TROUGH OF LOW PRESSURE WEAKENS A
BIT...SLIGHT WARMING WILL OCCUR OVER THE LABOR DAY WEEKEND.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

IT IS A QUIET EVENING WEATHERWISE THIS EVENING...EXCEPT FOR A FEW
WIND GUSTS AROUND 40 MPH IN THE NORMAL WINDIER DESERT MOUNTAIN
SLOPE/FOOTHILL LOCATIONS...INCLUDING SAN GORGONIO PASS...AND
AREAS OF STRATUS ARE MAKING A PUSH INLAND FROM THE COAST. AN EDDY IS
OVER THE COASTAL WATERS NOW...AND SHOWN BY THE 8 KNOT WIND FROM THE
SOUTH AT LINDBERGH FIELD...SO THE CURRENT 2000 FOOT MARINE INVERSION
HEIGHT SHOULD RISE A LITTLE BIT OVERNIGHT AND RESULT IN MOST AREAS
WEST OF THE MOUNTAINS HAVING STRATUS BY AROUND SUNRISE TUESDAY.

THE LOW PRESSURE TROUGH OVER THE WEST COAST WILL BE PERSISTENT MOST
OF THIS WEEK AND BRING A BENIGN WEATHER PATTERN WITH THAT NIGHT AND
MORNING STRATUS USUALLY PUSHING INTO THE VALLEYS...BUT CLEARING MOST
EVERYWHERE EACH DAY AS THE COOLER AIR ALOFT WILL KEEP THE INVERSION
FROM BEING TOO STRONG. MONSOONAL MOISTURE WILL STAY WELL TO THE EAST
AND SOUTHEAST DUE TO WESTERLY/SOUTHWESTERLY FLOW ALOFT. DAILY HIGH
TEMPERATURES WILL MOSTLY BE A LITTLE BELOW NORMAL...THOUGH
NEAR-COASTAL LOWS WILL BE A FEW DEGREES ABOVE NORMAL DUE TO THE
LOCAL SEA SURFACE TEMPERATURES MOSTLY IN THE LOWER TO MID 70S.
ENSEMBLE SOLUTIONS NEXT WEEKEND MOSTLY HAVE THE WEST COAST TROUGH
WEAKENING FOR SOME WARMING AND A MORE SHALLOW MARINE LAYER...THOUGH
MOST SOLUTIONS STILL HAVE SOME TROUGHING CONTINUING. MONSOONAL
MOISTURE WILL CONTINUE TO STAY OUT OF OUR AREA...INCLUDING ANY
ASSOCIATED WITH TROPICAL DEPRESSION 14-E...WHICH SHOULD ALSO STAY
SOUTHEAST OF OUR AREA.

&&

.AVIATION...
010300Z...COAST/VALLEYS...LOW CLOUDS WITH BASES BETWEEN 1600 AND
1900 FT MSL AND TOPS NEAR 2300 FT MSL WILL CONTINUE TO FILTER INLAND
OVER THE COAST AND VALLEYS THROUGH 13Z TUESDAY. PORTIONS OF THE
INLAND EMPIRE...INCLUDING KONT...MAY SEE MINOR VIS RESTRICTIONS OF 4-
6 SM WITH HZ AT TIMES BETWEEN 10Z AND 18Z TUESDAY. OTHERWISE SUB 3
SM VIS WILL BE LIMITED TO AREAS WHERE LOW CLOUDS AND TERRAIN
INTERSECT. LOW CLOUDS ARE EXPECT TO CLEAR TO THE COAST BETWEEN 17Z
AND 18Z...LEAVING SKC AND LIGHT SEA BREEZES FOR TUESDAY AFTERNOON.

MTNS/DESERTS...SKC WITH UNRESTRICTED VIS THROUGH TUESDAY EVENING.

&&

.MARINE...
800 PM...NO HAZARDOUS MARINE WEATHER IS EXPECTED THROUGH FRIDAY.

&&

.BEACHES...
800 PM...A MIXED SOUTHERLY SWELL FROM ACTIVITY OVER THE TROPICAL
PACIFIC WILL CONTINUE TO BRING ELEVATED SURF AND A HIGH RIP CURRENT
RISK TO LOCAL BEACHES THROUGH EARLY THURSDAY. HIGHEST SURF WILL
OCCUR TUESDAY AND WEDNESDAY WITH WIDESPREAD 3-4 FT SURF AND LOCAL
SETS TO 6 FT ALONG SOUTHWEST FACING BEACHES. LOWER SURF HEIGHTS AND
WEAKER RIPS ARE EXPECTED LATE THURSDAY INTO EARLY SATURDAY...BEFORE
A LONG PERIOD SOUTHERLY SWELL ARRIVES EARLY NEXT WEEK.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC...MAXWELL
AVIATION/MARINE...ALBRIGHT




    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities