Home > Products > Valid Products > AFD

000
FXCA62 TJSJ 221906
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
306 PM AST MON DEC 22 2014

.SYNOPSIS...RIDGE ALOFT WILL BE THE DOMINANT WEATHER FEATURE OVER
THE NEXT SEVERAL DAYS. WEAK SURFACE TROUGH WILL MOVE ACROSS THE
LOCAL ISLANDS LATE THURSDAY INTO FRIDAY.

&&

.DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY. WINDS WERE FROM THE EAST AT 10 TO 15 MPH WITH SOME
SEA BREEZE VARIATIONS. THE MAXIMUM TEMPERATURES WERE IN THE MID 80S
AT LOWER ELEVATIONS AND IN THE 70S AT HIGHER ELEVATIONS. A GENERALLY
FAIR AND MAINLY STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT FEW DAYS UNDER RIDGE ALOFT/ASSOCIATED
SUBSIDENCE AND BELOW TO NORMAL PRECIPITABLE WATER.

LATEST MODEL GUIDANCE CONTINUED TO INDICATE BEST MOISTURE ADVECTION
TUESDAY MORNING THROUGH TUESDAY AFTERNOON. THEREFORE AN INCREASE
IN SHOWER ACTIVITY IS THEN EXPECTED...WITH PASSING SHOWERS ACROSS
WINDWARD AREAS IN THE MORNING HOURS FOLLOWED BY LIMITED AFTERNOON
CONVECTION...IF ANY...OVER AND WEST OF THE CORDILLERA CENTRAL. A
DRIER AIR MASS WILL MOVE IN FROM THE EAST WEDNESDAY MORNING TO
COMBINE WITH SUBSIDENCE ALOFT. AS A RESULT...LIMITED SHOWER ACTIVITY
IS EXPECTED WEDNESDAY AND EARLY THURSDAY. ALTHOUGH MOISTURE WILL
REMAIN NEAR NORMAL VALUES THURSDAY AND FRIDAY...A WEAK SURFACE
WILL MOVE ACROSS THE LOCAL AREA. THIS MAY INCREASE A BIT THE CHANCE
OF PASSING SHOWERS ACROSS WINDWARD AREAS. MODERATE TO FRESH TRADE
WINDS WILL CONTINUE TO PROMOTE NEAR NORMAL TEMPERATURES ACROSS
LOCAL ISLANDS.

&&

.AVIATION...MOSTLY VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24 HOURS
WITH A SLIGHT CHANCE OF PASSING -SHRA ACROSS THE LOCAL TAF SITES.
AN INCREASE IN SHOWERS ACTIVITY OVER TIST/TISX/TJSJ/TNCM/TKPK IS
EXPECTED AFT 23/00Z WHEN A BAND OF MOISTURE IS EXPECTED TO REACH
THE ISLANDS. EASTERLY SFC WINDS AT 10 TO 15 KTS WITH HIGHER GUSTS...
DECREASING AT 5 TO 10 OVERNIGHT.

&&

.MARINE...MODERATE TO FRESH EASTERLY TRADE WINDS WILL PREVAIL
THROUGH TUESDAY. NORTHEASTERLY WINDS WILL RETURN BY THE END OF
THE WEEK ALONG WITH NORTHEAST SWELLS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  75  84  75  84 /  30  30  10  20
STT  75  85  75  86 /  40  40  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23










000
FXCA62 TJSJ 221906
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
306 PM AST MON DEC 22 2014

.SYNOPSIS...RIDGE ALOFT WILL BE THE DOMINANT WEATHER FEATURE OVER
THE NEXT SEVERAL DAYS. WEAK SURFACE TROUGH WILL MOVE ACROSS THE
LOCAL ISLANDS LATE THURSDAY INTO FRIDAY.

&&

.DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY. WINDS WERE FROM THE EAST AT 10 TO 15 MPH WITH SOME
SEA BREEZE VARIATIONS. THE MAXIMUM TEMPERATURES WERE IN THE MID 80S
AT LOWER ELEVATIONS AND IN THE 70S AT HIGHER ELEVATIONS. A GENERALLY
FAIR AND MAINLY STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT FEW DAYS UNDER RIDGE ALOFT/ASSOCIATED
SUBSIDENCE AND BELOW TO NORMAL PRECIPITABLE WATER.

LATEST MODEL GUIDANCE CONTINUED TO INDICATE BEST MOISTURE ADVECTION
TUESDAY MORNING THROUGH TUESDAY AFTERNOON. THEREFORE AN INCREASE
IN SHOWER ACTIVITY IS THEN EXPECTED...WITH PASSING SHOWERS ACROSS
WINDWARD AREAS IN THE MORNING HOURS FOLLOWED BY LIMITED AFTERNOON
CONVECTION...IF ANY...OVER AND WEST OF THE CORDILLERA CENTRAL. A
DRIER AIR MASS WILL MOVE IN FROM THE EAST WEDNESDAY MORNING TO
COMBINE WITH SUBSIDENCE ALOFT. AS A RESULT...LIMITED SHOWER ACTIVITY
IS EXPECTED WEDNESDAY AND EARLY THURSDAY. ALTHOUGH MOISTURE WILL
REMAIN NEAR NORMAL VALUES THURSDAY AND FRIDAY...A WEAK SURFACE
WILL MOVE ACROSS THE LOCAL AREA. THIS MAY INCREASE A BIT THE CHANCE
OF PASSING SHOWERS ACROSS WINDWARD AREAS. MODERATE TO FRESH TRADE
WINDS WILL CONTINUE TO PROMOTE NEAR NORMAL TEMPERATURES ACROSS
LOCAL ISLANDS.

&&

.AVIATION...MOSTLY VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24 HOURS
WITH A SLIGHT CHANCE OF PASSING -SHRA ACROSS THE LOCAL TAF SITES.
AN INCREASE IN SHOWERS ACTIVITY OVER TIST/TISX/TJSJ/TNCM/TKPK IS
EXPECTED AFT 23/00Z WHEN A BAND OF MOISTURE IS EXPECTED TO REACH
THE ISLANDS. EASTERLY SFC WINDS AT 10 TO 15 KTS WITH HIGHER GUSTS...
DECREASING AT 5 TO 10 OVERNIGHT.

&&

.MARINE...MODERATE TO FRESH EASTERLY TRADE WINDS WILL PREVAIL
THROUGH TUESDAY. NORTHEASTERLY WINDS WILL RETURN BY THE END OF
THE WEEK ALONG WITH NORTHEAST SWELLS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  75  84  75  84 /  30  30  10  20
STT  75  85  75  86 /  40  40  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23









000
FXCA62 TJSJ 221504
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1104 AM AST MON DEC 22 2014

.UPDATE...
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS MORNING.
SOUNDING DATA CONTINUE TO SUGGEST DRY THAN NORMAL WEATHER
CONDITIONS ACROSS THE LOCAL AREA. HOWEVER...TRADE WIND PASSING
SHOWERS CAN NOT BE RULED OUT MAINLY OVER THE EASTERN SECTIONS OF
PR AND USVI. RAINFALL ACTIVITY IF ANY...WILL BE LIGHT AND BRIEF.
FOR THE AFTERNOON...AN INCREASE IN CLOUDINESS WITH SOME ISOLATED
PASSING SHOWERS ARE STILL POSSIBLE MAINLY ACROSS THE INTERIOR AND
WESTERN SECTIONS OF PR.

&&

.AVIATION...MOSTLY VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24
HOURS WITH A SLIGHT CHANCE OF PASSING -SHRA ACROSS THE LOCAL TAF
SITES. EASTERLY SFC WINDS AT 5-17KTS WITH SEA BREEZE VARIATIONS
ARE EXPECTED FOR TODAY.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS WILL CONTINUE TODAY. SMALL
CRAFT OPERATORS SHOULD EXERCISE CAUTION ACROSS THE MONA PASSAGE.
A NORTHEAST SWELLS IS EXPECTED TO ARRIVE BY FRI DETERIORATING THE
LOCAL MARINE CONDITIONS STAY TUNED FOR ADDITIONAL INFO.

&&

.PREV DISCUSSION... /ISSUED 325 AM AST MON DEC 22 2014/

DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23








000
FXCA62 TJSJ 221504
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1104 AM AST MON DEC 22 2014

.UPDATE...
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS MORNING.
SOUNDING DATA CONTINUE TO SUGGEST DRY THAN NORMAL WEATHER
CONDITIONS ACROSS THE LOCAL AREA. HOWEVER...TRADE WIND PASSING
SHOWERS CAN NOT BE RULED OUT MAINLY OVER THE EASTERN SECTIONS OF
PR AND USVI. RAINFALL ACTIVITY IF ANY...WILL BE LIGHT AND BRIEF.
FOR THE AFTERNOON...AN INCREASE IN CLOUDINESS WITH SOME ISOLATED
PASSING SHOWERS ARE STILL POSSIBLE MAINLY ACROSS THE INTERIOR AND
WESTERN SECTIONS OF PR.

&&

.AVIATION...MOSTLY VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24
HOURS WITH A SLIGHT CHANCE OF PASSING -SHRA ACROSS THE LOCAL TAF
SITES. EASTERLY SFC WINDS AT 5-17KTS WITH SEA BREEZE VARIATIONS
ARE EXPECTED FOR TODAY.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS WILL CONTINUE TODAY. SMALL
CRAFT OPERATORS SHOULD EXERCISE CAUTION ACROSS THE MONA PASSAGE.
A NORTHEAST SWELLS IS EXPECTED TO ARRIVE BY FRI DETERIORATING THE
LOCAL MARINE CONDITIONS STAY TUNED FOR ADDITIONAL INFO.

&&

.PREV DISCUSSION... /ISSUED 325 AM AST MON DEC 22 2014/

DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23







000
FXCA62 TJSJ 220725
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
325 AM AST MON DEC 22 2014

.DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

&&

.AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

72/54






000
FXCA62 TJSJ 220725
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
325 AM AST MON DEC 22 2014

.DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

&&

.AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

72/54







000
FXCA62 TJSJ 220725
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
325 AM AST MON DEC 22 2014

.DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

&&

.AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

72/54






000
FXCA62 TJSJ 220725
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
325 AM AST MON DEC 22 2014

.DISCUSSION...DEEP RIDGE TO MAINTAIN LARGELY FAIR WEATHER
THIS WEEK. BUT MINOR LOW LEVEL DISTURBANCES TO CAUSE SLIGHT
DIFFERENCES IN THE NUMBER OF SHOWERS.

VERY SHALLOW TROUGH...MAINLY NORTH OF ANEDAGA PASSAGE...TO PASS
OVER PR/USVI TODAY BUT IT FLATTENS AS IT DOES SO AND IS CARRYING
REALLY LIMITED MOISTURE. DOESN/T APPEAR THAT IT WILL MAKE MUCH
DIFFERENCE IN SHOWERS TODAY. BETTER MOISTURE...1.75 INCHES
PRECIPITABLE WATER AND ESSENTIALLY ALL BELOW 700 MB WILL ARRIVE
LATE TONIGHT BUT WITHOUT A TROUGH TO FOCUS SHOWERS...FOR BRIEF/
SCATTERED TRADE WIND SHOWERS INTO USVI/EAST PR.

GFS SHOWING ANOTHER SIMILAR LOOKING TROUGH AND MOISTURE TO ARRIVE
LATE THU INTO THU NIGHT. SO FAR...CAN/T SEE MORE THAN SCATTERED
SHOWERS.

&&

.AVIATION...MOSTLY VFR CONDITIONS EXPECTED FOR THE NEXT 24 HOURS
ACROSS THE LOCAL FLYING AREA WITH A SLIGHT CHANCE OF PASSING -SHRA
ACROSS THE LOCAL TAF SITES. SFC WINDS WILL INCREASE TO AROUND
10-15KTS AFTER 22/14Z FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...MODERATE TO FRESH TRADE WINDS TO CONTINUE ALL WEEK BUT A
STRONG AND PERSISTENT MIDDLE NORTH ATLANTIC STORM WILL DRIVE
SWELLS SOUTHWARD BY FRI...MOST OF IT GOING WELL EAST OF ANTILLES
BUT WE MAY GET THE WESTWARD EXTENT OF THE HIGH SWELLS FRI/SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  82  75  83  72 /  20  30  30  10
STT  86  75  85  76 /  20  40  40  10

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

72/54







000
FXCA62 TJSJ 220128
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
928 PM AST SUN DEC 21 2014

.UPDATE...A GENERALLY PLEASANT WEATHER CONDITIONS HAVE PREVAILED
ACROSS THE ISLANDS THIS EVENING. SATELLITE IMAGERY SHOWS MOSTLY
CLEAR SKIES ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS. AT
THIS TIME...RADAR DATA INDICATE NO RAIN ECHOES OVER THE FORECAST
AREA. FAIR WEATHER CONDITIONS WILL PREVAIL ACROSS THE ISLANDS
OVER THE NEXT 24 HOURS. MINIMAL CHANGES WERE INTRODUCED TO THE
FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED OVER THE FORECAST PERIOD.

&&

.MARINE...WINDS OF 15-20 KT AND SEAS OF 3-5 FT EXPECTED OVER THE
NEXT FEW DAYS.

&&

.PREV DISCUSSION... /ISSUED 227 PM AST SUN DEC 21 2014/

SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS AS
RIDGE ALOFT HOLDS ACROSS THE CARIBBEAN INTO THE WESTERN TROPICAL
ATLANTIC.

DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY...WITH BRIEF PASSING SHOWERS OBSERVED OVER THE
CARIBBEAN WATERS SOUTH OF SAINT CROIX. WINDS WERE FROM THE NORTHEAST
AT 15 TO 20 MPH...WITH COASTAL TEMPERATURES IN THE MID 80S. A FAIR
AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS THE
LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE ALOFT
AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM TIME
TO TIME. LATEST GUIDANCE INDICATED BEST MOISTURE ADVECTION STILL
EXPECTED ON TUESDAY. THE AFOREMENTIONED SUBSIDENCE ALOFT SHOULD
LIMIT AFTERNOON CONVECTION...EACH DAY...IF ANY...EXCEPT TUESDAY
AS MOISTURE REESTABLISHES TO NEAR NORMAL VALUES. FRESH NORTHEASTERLY
TRADES WILL CONTINUE THROUGH TONIGHT...BECOMING MORE EASTERLY
MONDAY THROUGH AT LEAST WEDNESDAY WITH NORTHEASTERLY WINDS RETURNING
ONCE AGAIN BY THE END OF THE WORKWEEK.

AVIATION...VFR CONDITIONS WILL CONTINUE...WITH OCCASIONAL PASSING
-SHRA EXPECTED AT TIST/TJSJ/TISX/TNCM/TKPK TONIGHT. NO SIGNIFICANT
WEATHER EVENT IS EXPECTED. E WIND FLOW AT 5 TO 20 KT WITH HIGHER
GUST...TURNING LIGHT TO CALM AND VARIABLE OVERNIGHT.

MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH TONIGHT...BECOMING MORE EASTERLY MON AND TUE. NORTHEASTERLY
WINDS WILL RETURN BY THE END OF THE WORKWEEK WITH NORTHEASTERLY
SWELLS INVADING OUR WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  83  74  84 /  20  20  40  40
STT  74  85  74  85 /  20  20  40  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

25/11






000
FXCA62 TJSJ 220128
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
928 PM AST SUN DEC 21 2014

.UPDATE...A GENERALLY PLEASANT WEATHER CONDITIONS HAVE PREVAILED
ACROSS THE ISLANDS THIS EVENING. SATELLITE IMAGERY SHOWS MOSTLY
CLEAR SKIES ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS. AT
THIS TIME...RADAR DATA INDICATE NO RAIN ECHOES OVER THE FORECAST
AREA. FAIR WEATHER CONDITIONS WILL PREVAIL ACROSS THE ISLANDS
OVER THE NEXT 24 HOURS. MINIMAL CHANGES WERE INTRODUCED TO THE
FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED OVER THE FORECAST PERIOD.

&&

.MARINE...WINDS OF 15-20 KT AND SEAS OF 3-5 FT EXPECTED OVER THE
NEXT FEW DAYS.

&&

.PREV DISCUSSION... /ISSUED 227 PM AST SUN DEC 21 2014/

SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS AS
RIDGE ALOFT HOLDS ACROSS THE CARIBBEAN INTO THE WESTERN TROPICAL
ATLANTIC.

DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY...WITH BRIEF PASSING SHOWERS OBSERVED OVER THE
CARIBBEAN WATERS SOUTH OF SAINT CROIX. WINDS WERE FROM THE NORTHEAST
AT 15 TO 20 MPH...WITH COASTAL TEMPERATURES IN THE MID 80S. A FAIR
AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS THE
LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE ALOFT
AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM TIME
TO TIME. LATEST GUIDANCE INDICATED BEST MOISTURE ADVECTION STILL
EXPECTED ON TUESDAY. THE AFOREMENTIONED SUBSIDENCE ALOFT SHOULD
LIMIT AFTERNOON CONVECTION...EACH DAY...IF ANY...EXCEPT TUESDAY
AS MOISTURE REESTABLISHES TO NEAR NORMAL VALUES. FRESH NORTHEASTERLY
TRADES WILL CONTINUE THROUGH TONIGHT...BECOMING MORE EASTERLY
MONDAY THROUGH AT LEAST WEDNESDAY WITH NORTHEASTERLY WINDS RETURNING
ONCE AGAIN BY THE END OF THE WORKWEEK.

AVIATION...VFR CONDITIONS WILL CONTINUE...WITH OCCASIONAL PASSING
-SHRA EXPECTED AT TIST/TJSJ/TISX/TNCM/TKPK TONIGHT. NO SIGNIFICANT
WEATHER EVENT IS EXPECTED. E WIND FLOW AT 5 TO 20 KT WITH HIGHER
GUST...TURNING LIGHT TO CALM AND VARIABLE OVERNIGHT.

MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH TONIGHT...BECOMING MORE EASTERLY MON AND TUE. NORTHEASTERLY
WINDS WILL RETURN BY THE END OF THE WORKWEEK WITH NORTHEASTERLY
SWELLS INVADING OUR WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  83  74  84 /  20  20  40  40
STT  74  85  74  85 /  20  20  40  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

25/11






000
FXCA62 TJSJ 220128
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
928 PM AST SUN DEC 21 2014

.UPDATE...A GENERALLY PLEASANT WEATHER CONDITIONS HAVE PREVAILED
ACROSS THE ISLANDS THIS EVENING. SATELLITE IMAGERY SHOWS MOSTLY
CLEAR SKIES ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS. AT
THIS TIME...RADAR DATA INDICATE NO RAIN ECHOES OVER THE FORECAST
AREA. FAIR WEATHER CONDITIONS WILL PREVAIL ACROSS THE ISLANDS
OVER THE NEXT 24 HOURS. MINIMAL CHANGES WERE INTRODUCED TO THE
FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED OVER THE FORECAST PERIOD.

&&

.MARINE...WINDS OF 15-20 KT AND SEAS OF 3-5 FT EXPECTED OVER THE
NEXT FEW DAYS.

&&

.PREV DISCUSSION... /ISSUED 227 PM AST SUN DEC 21 2014/

SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS AS
RIDGE ALOFT HOLDS ACROSS THE CARIBBEAN INTO THE WESTERN TROPICAL
ATLANTIC.

DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY...WITH BRIEF PASSING SHOWERS OBSERVED OVER THE
CARIBBEAN WATERS SOUTH OF SAINT CROIX. WINDS WERE FROM THE NORTHEAST
AT 15 TO 20 MPH...WITH COASTAL TEMPERATURES IN THE MID 80S. A FAIR
AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS THE
LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE ALOFT
AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM TIME
TO TIME. LATEST GUIDANCE INDICATED BEST MOISTURE ADVECTION STILL
EXPECTED ON TUESDAY. THE AFOREMENTIONED SUBSIDENCE ALOFT SHOULD
LIMIT AFTERNOON CONVECTION...EACH DAY...IF ANY...EXCEPT TUESDAY
AS MOISTURE REESTABLISHES TO NEAR NORMAL VALUES. FRESH NORTHEASTERLY
TRADES WILL CONTINUE THROUGH TONIGHT...BECOMING MORE EASTERLY
MONDAY THROUGH AT LEAST WEDNESDAY WITH NORTHEASTERLY WINDS RETURNING
ONCE AGAIN BY THE END OF THE WORKWEEK.

AVIATION...VFR CONDITIONS WILL CONTINUE...WITH OCCASIONAL PASSING
-SHRA EXPECTED AT TIST/TJSJ/TISX/TNCM/TKPK TONIGHT. NO SIGNIFICANT
WEATHER EVENT IS EXPECTED. E WIND FLOW AT 5 TO 20 KT WITH HIGHER
GUST...TURNING LIGHT TO CALM AND VARIABLE OVERNIGHT.

MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH TONIGHT...BECOMING MORE EASTERLY MON AND TUE. NORTHEASTERLY
WINDS WILL RETURN BY THE END OF THE WORKWEEK WITH NORTHEASTERLY
SWELLS INVADING OUR WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  83  74  84 /  20  20  40  40
STT  74  85  74  85 /  20  20  40  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

25/11







000
FXCA62 TJSJ 211827
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
227 PM AST SUN DEC 21 2014

.SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS AS
RIDGE ALOFT HOLDS ACROSS THE CARIBBEAN INTO THE WESTERN TROPICAL
ATLANTIC.

&&

.DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY...WITH BRIEF PASSING SHOWERS OBSERVED OVER THE
CARIBBEAN WATERS SOUTH OF SAINT CROIX. WINDS WERE FROM THE NORTHEAST
AT 15 TO 20 MPH...WITH COASTAL TEMPERATURES IN THE MID 80S. A FAIR
AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS THE
LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE ALOFT
AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM TIME
TO TIME. LATEST GUIDANCE INDICATED BEST MOISTURE ADVECTION STILL
EXPECTED ON TUESDAY. THE AFOREMENTIONED SUBSIDENCE ALOFT SHOULD
LIMIT AFTERNOON CONVECTION...EACH DAY...IF ANY...EXCEPT TUESDAY
AS MOISTURE REESTABLISHES TO NEAR NORMAL VALUES. FRESH NORTHEASTERLY
TRADES WILL CONTINUE THROUGH TONIGHT...BECOMING MORE EASTERLY
MONDAY THROUGH AT LEAST WEDNESDAY WITH NORTHEASTERLY WINDS RETURNING
ONCE AGAIN BY THE END OF THE WORKWEEK.

&&

.AVIATION...VFR CONDITIONS WILL CONTINUE...WITH OCCASIONAL PASSING
-SHRA EXPECTED AT TIST/TJSJ/TISX/TNCM/TKPK TONIGHT. NO SIGNIFICANT
WEATHER EVENT IS EXPECTED. E WIND FLOW AT 5 TO 20 KT WITH HIGHER
GUST...TURNING LIGHT TO CALM AND VARIABLE OVERNIGHT.

&&

.MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH TONIGHT...BECOMING MORE EASTERLY MON AND TUE. NORTHEASTERLY
WINDS WILL RETURN BY THE END OF THE WORKWEEK WITH NORTHEASTERLY
SWELLS INVADING OUR WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  83  74  84 /  30  20  40  40
STT  74  85  74  85 /  30  20  40  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23






000
FXCA62 TJSJ 211827
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
227 PM AST SUN DEC 21 2014

.SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS AS
RIDGE ALOFT HOLDS ACROSS THE CARIBBEAN INTO THE WESTERN TROPICAL
ATLANTIC.

&&

.DISCUSSION...MOSTLY SUNNY SKIES PREVAILED ACROSS THE LOCAL ISLANDS
THROUGH THE DAY...WITH BRIEF PASSING SHOWERS OBSERVED OVER THE
CARIBBEAN WATERS SOUTH OF SAINT CROIX. WINDS WERE FROM THE NORTHEAST
AT 15 TO 20 MPH...WITH COASTAL TEMPERATURES IN THE MID 80S. A FAIR
AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS THE
LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE ALOFT
AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED TO
LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM TIME
TO TIME. LATEST GUIDANCE INDICATED BEST MOISTURE ADVECTION STILL
EXPECTED ON TUESDAY. THE AFOREMENTIONED SUBSIDENCE ALOFT SHOULD
LIMIT AFTERNOON CONVECTION...EACH DAY...IF ANY...EXCEPT TUESDAY
AS MOISTURE REESTABLISHES TO NEAR NORMAL VALUES. FRESH NORTHEASTERLY
TRADES WILL CONTINUE THROUGH TONIGHT...BECOMING MORE EASTERLY
MONDAY THROUGH AT LEAST WEDNESDAY WITH NORTHEASTERLY WINDS RETURNING
ONCE AGAIN BY THE END OF THE WORKWEEK.

&&

.AVIATION...VFR CONDITIONS WILL CONTINUE...WITH OCCASIONAL PASSING
-SHRA EXPECTED AT TIST/TJSJ/TISX/TNCM/TKPK TONIGHT. NO SIGNIFICANT
WEATHER EVENT IS EXPECTED. E WIND FLOW AT 5 TO 20 KT WITH HIGHER
GUST...TURNING LIGHT TO CALM AND VARIABLE OVERNIGHT.

&&

.MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH TONIGHT...BECOMING MORE EASTERLY MON AND TUE. NORTHEASTERLY
WINDS WILL RETURN BY THE END OF THE WORKWEEK WITH NORTHEASTERLY
SWELLS INVADING OUR WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  83  74  84 /  30  20  40  40
STT  74  85  74  85 /  30  20  40  40

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23







000
FXCA62 TJSJ 211548
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1148 AM AST SUN DEC 21 2014

.UPDATE...
MOSTLY SUNNY EARLY IN THE MORNING BECOMING PARTLY CLOUDY AROUND
NOON PREVAILED ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS.
RADAR IMAGES INDICATE LIGHT PASSING SHOWERS MAINLY OVER THE
CARIBBEAN OFFSHORE WATERS. BELOW NORMAL DRYER CONDITIONS ARE
SUGGESTED BY THE 21/12Z SOUNDING...AND A SURFACE EASTERLY
TRADEWIND FLOW AT 10 TO 20 MPH. ALSO...21/12Z RAOB DATA
INDICATE A MID LEVEL INVERSION NEAR 750MB ASSOCIATED WITH THE
HIGH PRESSURE SYSTEM AT THAT LEVEL. THE MODEL GUIDANCE SEEMS TO BE
WELL INITIALIZE AND CONTINUE TO SUGGEST TRANQUIL WEATHER
CONDITIONS AT LEAST UNTIL TUESDAY WHEN A MOISTURE BAND WILL REACH
THE USVI AND EASTERN PR INCREASING THE CHANCE OF SHOWERS. NO
CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS MORNING.

&&

.AVIATION...VFR CONDITIONS WILL CONTINUE...BUT -SHRA ARE STILL
EXPECTED AT PR/USVI/LEEWARD ISLANDS TONIGHT. AT THIS MOMENT...NO
SIGNIFICANT WEATHER EVENT ARE EXPECTED OVER THE TAF SITES. 21/12Z
SOUNDING DATA SHOWED E FLOW AT 5 TO 21 KT...IN ADDITION GUSTY
CONDITIONS HAVE BEEN REPORTED AT TJBQ/TIST UP TO 23 KT.

&&

.MARINE...3 TO 5 FEET SEAS HAVE BEEN RECORDED BY THE LOCAL BUOY
NETWORK ACROSS THE SURROUNDING COASTAL WATERS. FOR THE REST OF
THE DAY...NEAR-SHORE SEAS MAINLY BETWEEN 3 AND 5 FEET AND WINDS
UP TO 20 KNOTS ARE EXPECTED. THEREFORE...SMALL CRAFT OPERATORS
SHOULD EXERCISE CAUTIONS ACROSS THE LOCAL WATERS. THE BEACH GOERS
SHOULD EXERCISE CAUTION DUE TO MODERATE TO HIGH RISK OF RIP
CURRENTS ACROSS MANY OF THE NORTH FACING BEACHES OF PUERTO
RICO...AND SAINT THOMAS

&&

.PREV DISCUSSION... /ISSUED 634 AM AST SUN DEC 21 2014/

SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23







000
FXCA62 TJSJ 211548
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1148 AM AST SUN DEC 21 2014

.UPDATE...
MOSTLY SUNNY EARLY IN THE MORNING BECOMING PARTLY CLOUDY AROUND
NOON PREVAILED ACROSS PUERTO RICO AND THE U.S. VIRGIN ISLANDS.
RADAR IMAGES INDICATE LIGHT PASSING SHOWERS MAINLY OVER THE
CARIBBEAN OFFSHORE WATERS. BELOW NORMAL DRYER CONDITIONS ARE
SUGGESTED BY THE 21/12Z SOUNDING...AND A SURFACE EASTERLY
TRADEWIND FLOW AT 10 TO 20 MPH. ALSO...21/12Z RAOB DATA
INDICATE A MID LEVEL INVERSION NEAR 750MB ASSOCIATED WITH THE
HIGH PRESSURE SYSTEM AT THAT LEVEL. THE MODEL GUIDANCE SEEMS TO BE
WELL INITIALIZE AND CONTINUE TO SUGGEST TRANQUIL WEATHER
CONDITIONS AT LEAST UNTIL TUESDAY WHEN A MOISTURE BAND WILL REACH
THE USVI AND EASTERN PR INCREASING THE CHANCE OF SHOWERS. NO
CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS MORNING.

&&

.AVIATION...VFR CONDITIONS WILL CONTINUE...BUT -SHRA ARE STILL
EXPECTED AT PR/USVI/LEEWARD ISLANDS TONIGHT. AT THIS MOMENT...NO
SIGNIFICANT WEATHER EVENT ARE EXPECTED OVER THE TAF SITES. 21/12Z
SOUNDING DATA SHOWED E FLOW AT 5 TO 21 KT...IN ADDITION GUSTY
CONDITIONS HAVE BEEN REPORTED AT TJBQ/TIST UP TO 23 KT.

&&

.MARINE...3 TO 5 FEET SEAS HAVE BEEN RECORDED BY THE LOCAL BUOY
NETWORK ACROSS THE SURROUNDING COASTAL WATERS. FOR THE REST OF
THE DAY...NEAR-SHORE SEAS MAINLY BETWEEN 3 AND 5 FEET AND WINDS
UP TO 20 KNOTS ARE EXPECTED. THEREFORE...SMALL CRAFT OPERATORS
SHOULD EXERCISE CAUTIONS ACROSS THE LOCAL WATERS. THE BEACH GOERS
SHOULD EXERCISE CAUTION DUE TO MODERATE TO HIGH RISK OF RIP
CURRENTS ACROSS MANY OF THE NORTH FACING BEACHES OF PUERTO
RICO...AND SAINT THOMAS

&&

.PREV DISCUSSION... /ISSUED 634 AM AST SUN DEC 21 2014/

SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23






000
FXCA62 TJSJ 211034
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
634 AM AST SUN DEC 21 2014

.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

&&

.DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

&&

.AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

&&

.MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13






000
FXCA62 TJSJ 211034
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
634 AM AST SUN DEC 21 2014

.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

&&

.DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

&&

.AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

&&

.MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13






000
FXCA62 TJSJ 211034
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
634 AM AST SUN DEC 21 2014

.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

&&

.DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

&&

.AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

&&

.MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13







000
FXCA62 TJSJ 211034
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
634 AM AST SUN DEC 21 2014

.SYNOPSIS...HIGH PRESSURE WILL CONTINUE TO DOMINATE THE LOCAL REGION THROUGH
THE END OF THE FORECAST PERIOD WITH MODERATE TRADE WINDS. MOSTLY FAIR
WEATHER CONDITIONS EXPECTED ACROSS THE FORECAST AREA.

&&

.DISCUSSION...MOSTLY CLEAR SKIES PREVAILED OVER LAND AREAS
OVERNIGHT WITH THE EXCEPTION OF ONE OR TWO BRIEF ISOLATED SHOWERS
OVER EASTERN PUERTO RICO. PASSING SHOWERS WERE NOTED OVER THE
CARIBBEAN WATERS DURING THE NIGHT TIME PERIOD AND ARE EXPECTED TO
CONTINUE THROUGH SUNDAY MORNING. SOME OF THESE SHOWERS CAN BRIEFLY
AFFECT ST. CROIX.

MODEL GUIDANCE CONTINUES TO INDICATE THAT THE BEST DAY FOR
SCATTERED SHOWER ACTIVITY OVER MUCH OF THE LOCAL ISLANDS WILL BE
ON TUESDAY...AS LOW LEVEL EASTERLY WIND SURGE WITH NORMAL PWAT
VALUES ARE EXPECTED. HOWEVER...DRYING IS EXPECTED QUICKLY BY LATE
TUESDAY NIGHT/EARLY WEDNESDAY. SHOWER ACTIVITY WILL REMAIN AT A
MINIMUM ON MOST OF THE DAYS WITH THE EXCEPTION OF BRIEF AND LIGHT PASSING
SHOWERS ACROSS THE WINDWARD AREAS.

&&

.AVIATION...CONT VFR XCP ISOLD/SCT MVFR IN SHRA TONITE EAST PR/USVI/
LEEWARD ISLANDS. WIND BLO FL060 E 10-20 KT THRU MON...FL060-FL200
MAINLY E 5-12 KT INCR 12-22 KT TONITE/MON.

&&

.MARINE...SHORT PERIOD WAVES WILL CONTINUE AT 3-5 FEET AND UP TO 6
FEET ACROSS THE OFFSHORE ATLANTIC WATERS. EAST-NORTHEAST WINDS UP
TO 20 KTS. SMALL CRAFT SHOULD EXERCISE CAUTION ACROSS MUCH OF THE
WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  83  74  83  74 /  30  30  30  30
STT  85  74  87  77 /  30  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13







000
FXCA62 TJSJ 210100
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
900 PM AST SAT DEC 20 2014

.UPDATE...PARTLY TO VARIABLY CLOUDY SKIES PREVAILED ACROSS PUERTO
RICO AND THE U.S. VIRGIN ISLANDS THIS EVENING. LIGHT PASSING SHOWERS
AFFECTED BRIEFLY THE EAST COASTAL SECTIONS OF PR AS WELL AS PORTIONS
OF THE USVI. ADDITIONAL LIGHT SHOWERS EMBEDDED IN THE TRADES COULD
MOVE INLAND OVER THE WINDWARD AREAS DURING THE OVERNIGHT HOURS.
HOWEVER...MINIMAL RAINFALL ACCUMULATION IS EXPECTED ACROSS THE
LOCAL ISLANDS THROUGH SUNDAY MORNING. THE FAIR WEATHER PATTERN IS
FORECAST TO CONTINUE ACROSS THE ISLANDS THE REST OF THE WEEKEND.
HOWEVER...A MOISTURE BAND WILL REACH THE USVI AND EASTERN PR
TUESDAY MORNING...ALLOWING SCATTERED SHOWERS TO FORM OVER THE
LOCAL ISLANDS ON TUESDAY. NO CHANGES WERE INTRODUCED TO THE
FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED FOR THE NEXT 24 HOURS ACROSS THE LOCAL
TERMINALS WITH ONLY ISOLD PASSING -SHRA ACROSS THE LOCAL FLYING AREA.
LIGHT SFC WINDS OVERNIGHT...INCREASING TO AROUND 15KTS AFTER 21/13Z
FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS ARE FORECAST OVER THE NEXT FEW DAYS.
WINDS OF 15-20 KT CAN BE EXPECTED THROUGH REST OF THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 243 PM AST SAT DEC 20 2014/

SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS
AS A MID TO UPPER LEVEL RIDGE HOLDS ACROSS THE CARIBBEAN INTO
THE WESTERN TROPICAL ATLANTIC. SURFACE HIGH NORTH OF THE AREA
WILL PROMOTE FRESH NORTHEASTERLY WINDS THROUGH EARLY NEXT WEEK.

DISCUSSION...MOSTLY SUNNY TO PARTLY CLOUDY SKIES PREVAILED
ACROSS THE LOCAL ISLANDS THROUGH THE DAY...WITH BRIEF PASSING
SHOWERS OBSERVED OVER THE CARIBBEAN WATERS SOUTH OF SAINT CROIX
AND PUERTO RICO. SOME SHOWERS HAVE BEEN DEVELOPING ACROSS PORTIONS
OF SOUTHWEST PUERTO RICO EARLY THIS AFTERNOON...HOWEVER MINIMAL
RAINFALL ACCUMULATIONS OBSERVED SO FAR. WINDS WERE FROM THE
NORTHEAST AT 10 TO 15 MPH...WITH COASTAL TEMPERATURES IN THE
MID 80S.

A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE
ALOFT AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW
LOW LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED
TO LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM
TIME TO TIME. IN FACT...BEST CHANCE EXPECTED EARLY MONDAY MORNING
AND TUESDAY. AS SUBSIDENCE CAP HOLDS ACROSS THE AREA...AFTERNOON
CONVECTION EACH DAY SHOULD REMAIN LIMITED...IF ANY.

FRESH NORTHEASTERLY TRADES WILL CONTINUE THROUGH SUNDAY BECOMING
MORE EASTERLY EARLY NEXT WORK WEEK. THIS WILL PROMOTE NEAR NORMAL
MAXIMUM TEMPERATURES ACROSS LOCAL ISLANDS.

AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS. SHALLOW/
ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT WEATHER EVENT
ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED ENE AT 3-17 KT
UP TO 2KFT.

MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH SUNDAY...BECOMING MORE EASTERLY MONDAY AND TUESDAY AS
SURFACE HIGH NORTH OF THE AREA MOVES FURTHER NORTH. SEAS BUILDING
SLIGHTLY TONIGHT AND SUNDAY ACROSS THE OFFSHORE ATLANTIC WATERS.
SEAS UP TO 6 FEET.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  84  74  84 /  20  30  30  30
STT  76  85  76  85 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

25/11






000
FXCA62 TJSJ 210100
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
900 PM AST SAT DEC 20 2014

.UPDATE...PARTLY TO VARIABLY CLOUDY SKIES PREVAILED ACROSS PUERTO
RICO AND THE U.S. VIRGIN ISLANDS THIS EVENING. LIGHT PASSING SHOWERS
AFFECTED BRIEFLY THE EAST COASTAL SECTIONS OF PR AS WELL AS PORTIONS
OF THE USVI. ADDITIONAL LIGHT SHOWERS EMBEDDED IN THE TRADES COULD
MOVE INLAND OVER THE WINDWARD AREAS DURING THE OVERNIGHT HOURS.
HOWEVER...MINIMAL RAINFALL ACCUMULATION IS EXPECTED ACROSS THE
LOCAL ISLANDS THROUGH SUNDAY MORNING. THE FAIR WEATHER PATTERN IS
FORECAST TO CONTINUE ACROSS THE ISLANDS THE REST OF THE WEEKEND.
HOWEVER...A MOISTURE BAND WILL REACH THE USVI AND EASTERN PR
TUESDAY MORNING...ALLOWING SCATTERED SHOWERS TO FORM OVER THE
LOCAL ISLANDS ON TUESDAY. NO CHANGES WERE INTRODUCED TO THE
FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED FOR THE NEXT 24 HOURS ACROSS THE LOCAL
TERMINALS WITH ONLY ISOLD PASSING -SHRA ACROSS THE LOCAL FLYING AREA.
LIGHT SFC WINDS OVERNIGHT...INCREASING TO AROUND 15KTS AFTER 21/13Z
FROM THE EAST WITH SEA BREEZE VARIATIONS.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS ARE FORECAST OVER THE NEXT FEW DAYS.
WINDS OF 15-20 KT CAN BE EXPECTED THROUGH REST OF THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 243 PM AST SAT DEC 20 2014/

SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS
AS A MID TO UPPER LEVEL RIDGE HOLDS ACROSS THE CARIBBEAN INTO
THE WESTERN TROPICAL ATLANTIC. SURFACE HIGH NORTH OF THE AREA
WILL PROMOTE FRESH NORTHEASTERLY WINDS THROUGH EARLY NEXT WEEK.

DISCUSSION...MOSTLY SUNNY TO PARTLY CLOUDY SKIES PREVAILED
ACROSS THE LOCAL ISLANDS THROUGH THE DAY...WITH BRIEF PASSING
SHOWERS OBSERVED OVER THE CARIBBEAN WATERS SOUTH OF SAINT CROIX
AND PUERTO RICO. SOME SHOWERS HAVE BEEN DEVELOPING ACROSS PORTIONS
OF SOUTHWEST PUERTO RICO EARLY THIS AFTERNOON...HOWEVER MINIMAL
RAINFALL ACCUMULATIONS OBSERVED SO FAR. WINDS WERE FROM THE
NORTHEAST AT 10 TO 15 MPH...WITH COASTAL TEMPERATURES IN THE
MID 80S.

A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE
ALOFT AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW
LOW LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED
TO LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM
TIME TO TIME. IN FACT...BEST CHANCE EXPECTED EARLY MONDAY MORNING
AND TUESDAY. AS SUBSIDENCE CAP HOLDS ACROSS THE AREA...AFTERNOON
CONVECTION EACH DAY SHOULD REMAIN LIMITED...IF ANY.

FRESH NORTHEASTERLY TRADES WILL CONTINUE THROUGH SUNDAY BECOMING
MORE EASTERLY EARLY NEXT WORK WEEK. THIS WILL PROMOTE NEAR NORMAL
MAXIMUM TEMPERATURES ACROSS LOCAL ISLANDS.

AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS. SHALLOW/
ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT WEATHER EVENT
ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED ENE AT 3-17 KT
UP TO 2KFT.

MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH SUNDAY...BECOMING MORE EASTERLY MONDAY AND TUESDAY AS
SURFACE HIGH NORTH OF THE AREA MOVES FURTHER NORTH. SEAS BUILDING
SLIGHTLY TONIGHT AND SUNDAY ACROSS THE OFFSHORE ATLANTIC WATERS.
SEAS UP TO 6 FEET.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  84  74  84 /  20  30  30  30
STT  76  85  76  85 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

25/11







000
FXCA62 TJSJ 201843
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
243 PM AST SAT DEC 20 2014

.SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS
AS A MID TO UPPER LEVEL RIDGE HOLDS ACROSS THE CARIBBEAN INTO
THE WESTERN TROPICAL ATLANTIC. SURFACE HIGH NORTH OF THE AREA
WILL PROMOTE FRESH NORTHEASTERLY WINDS THROUGH EARLY NEXT WEEK.

&&

.DISCUSSION...MOSTLY SUNNY TO PARTLY CLOUDY SKIES PREVAILED
ACROSS THE LOCAL ISLANDS THROUGH THE DAY...WITH BRIEF PASSING
SHOWERS OBSERVED OVER THE CARIBBEAN WATERS SOUTH OF SAINT CROIX
AND PUERTO RICO. SOME SHOWERS HAVE BEEN DEVELOPING ACROSS PORTIONS
OF SOUTHWEST PUERTO RICO EARLY THIS AFTERNOON...HOWEVER MINIMAL
RAINFALL ACCUMULATIONS OBSERVED SO FAR. WINDS WERE FROM THE
NORTHEAST AT 10 TO 15 MPH...WITH COASTAL TEMPERATURES IN THE
MID 80S.

A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE
ALOFT AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW
LOW LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED
TO LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM
TIME TO TIME. IN FACT...BEST CHANCE EXPECTED EARLY MONDAY MORNING
AND TUESDAY. AS SUBSIDENCE CAP HOLDS ACROSS THE AREA...AFTERNOON
CONVECTION EACH DAY SHOULD REMAIN LIMITED...IF ANY.

FRESH NORTHEASTERLY TRADES WILL CONTINUE THROUGH SUNDAY BECOMING
MORE EASTERLY EARLY NEXT WORK WEEK. THIS WILL PROMOTE NEAR NORMAL
MAXIMUM TEMPERATURES ACROSS LOCAL ISLANDS.

&&

.AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS. SHALLOW/
ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT WEATHER EVENT
ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED ENE AT 3-17 KT
UP TO 2KFT.

&&

.MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH SUNDAY...BECOMING MORE EASTERLY MONDAY AND TUESDAY AS
SURFACE HIGH NORTH OF THE AREA MOVES FURTHER NORTH. SEAS BUILDING
SLIGHTLY TONIGHT AND SUNDAY ACROSS THE OFFSHORE ATLANTIC WATERS.
SEAS UP TO 6 FEET.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  84  74  84 /  20  30  30  30
STT  76  85  76  85 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23






000
FXCA62 TJSJ 201843
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
243 PM AST SAT DEC 20 2014

.SYNOPSIS...A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO
PREVAIL ACROSS THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS
AS A MID TO UPPER LEVEL RIDGE HOLDS ACROSS THE CARIBBEAN INTO
THE WESTERN TROPICAL ATLANTIC. SURFACE HIGH NORTH OF THE AREA
WILL PROMOTE FRESH NORTHEASTERLY WINDS THROUGH EARLY NEXT WEEK.

&&

.DISCUSSION...MOSTLY SUNNY TO PARTLY CLOUDY SKIES PREVAILED
ACROSS THE LOCAL ISLANDS THROUGH THE DAY...WITH BRIEF PASSING
SHOWERS OBSERVED OVER THE CARIBBEAN WATERS SOUTH OF SAINT CROIX
AND PUERTO RICO. SOME SHOWERS HAVE BEEN DEVELOPING ACROSS PORTIONS
OF SOUTHWEST PUERTO RICO EARLY THIS AFTERNOON...HOWEVER MINIMAL
RAINFALL ACCUMULATIONS OBSERVED SO FAR. WINDS WERE FROM THE
NORTHEAST AT 10 TO 15 MPH...WITH COASTAL TEMPERATURES IN THE
MID 80S.

A FAIR AND STABLE WEATHER PATTERN WILL CONTINUE TO PREVAIL ACROSS
THE LOCAL ISLANDS DURING THE NEXT SEVERAL DAYS UNDER SUBSIDENCE
ALOFT AND BELOW TO NORMAL PRECIPITABLE WATER. ALTHOUGH...SHALLOW
LOW LEVEL MOISTURE EMBEDDED IN THE TRADES WILL RESULT IN ISOLATED
TO LOCALLY SCATTERED PASSING SHOWERS ACROSS WINDWARD AREAS FROM
TIME TO TIME. IN FACT...BEST CHANCE EXPECTED EARLY MONDAY MORNING
AND TUESDAY. AS SUBSIDENCE CAP HOLDS ACROSS THE AREA...AFTERNOON
CONVECTION EACH DAY SHOULD REMAIN LIMITED...IF ANY.

FRESH NORTHEASTERLY TRADES WILL CONTINUE THROUGH SUNDAY BECOMING
MORE EASTERLY EARLY NEXT WORK WEEK. THIS WILL PROMOTE NEAR NORMAL
MAXIMUM TEMPERATURES ACROSS LOCAL ISLANDS.

&&

.AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS. SHALLOW/
ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT WEATHER EVENT
ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED ENE AT 3-17 KT
UP TO 2KFT.

&&

.MARINE...A MODERATE TO FRESH NORTHEASTERLY WIND FLOW WILL PREVAIL
THROUGH SUNDAY...BECOMING MORE EASTERLY MONDAY AND TUESDAY AS
SURFACE HIGH NORTH OF THE AREA MOVES FURTHER NORTH. SEAS BUILDING
SLIGHTLY TONIGHT AND SUNDAY ACROSS THE OFFSHORE ATLANTIC WATERS.
SEAS UP TO 6 FEET.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  74  84  74  84 /  20  30  30  30
STT  76  85  76  85 /  20  30  30  30

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23







000
FXCA62 TJSJ 201520
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1120 AM AST SAT DEC 20 2014

.UPDATE...
MOSTLY SUNNY CONDITIONS PREVAILED DURING THE MORNING HOURS. THE
LIMITED SHOWER ACTIVITY OVER THE REGION IS ASSOCIATED WITH A DRY
AIR MASS AS OBSERVED IN THE MIMIC-TOTAL PRECIPITABLE WATER IMAGE.
IN ADDITION...THE LATEST SOUNDING DATA SHOWED PRECIP WATER OF
1.21 INCHES...THEREFORE...TRANQUIL WEATHER CONDITIONS ARE EXPECTED
TO PREVAIL. AROUND EVENING HOURS A RELATIVE MORE HUMID AIR MASS IS
EXPECTED TO ARRIVE AND TRADE WIND SHOWERS CANNOT BE RULED OUT.
NEVERTHELESS...NO SIGNIFICANT WEATHER EVENT IS EXPECTED DUE TO THE
PRESENCE OF A STRONG HIGH PRESSURE IN THE MID-TO-UPPER LEVELS.

&&

.AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS.
SHALLOW/ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT
WEATHER EVENT ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED
ENE AT 3-17 KT UP TO 2KFT.

&&

.MARINE...THE LOCAL BUOY NETWORK IS INDICATING SEAS 3-4 FT ALONG
THE NORTHERN COAST AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR THE
REST OF THE DAY...NEAR-SHORE SEAS BETWEEN 2 AND 5 FEET AND WINDS
UP TO 18 KNOTS ARE EXPECTED. THE BEACH GOERS SHOULD EXERCISE
CAUTION DUE TO MODERATE RISK OF RIP CURRENTS ACROSS MANY OF THE
NORTH FACING BEACHES OF PUERTO RICO...SAINT THOMAS AND SAINT
CROIX.

&&

.PREV DISCUSSION... /ISSUED 520 AM AST SAT DEC 20 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL CONTINUE TO BUILD OVER
THE REGION THROUGH THE NEXT SEVERAL DAYS SUSTAINING A TRADE WIND
CAP. AT THE SURFACE...WEAK SURFACE HIGH PRESSURE NORTH OF THE
ISLANDS WILL MAINTAIN A EAST-NORTHEAST LOW LEVEL WIND FLOW OVER
THE REGION.

DISCUSSION...MOSTLY CLEAR SKIES WERE OBSERVED ACROSS ALL LOCAL
ISLANDS TONIGHT WITH ISOLATED PASSING SHOWERS ACROSS THE
SURROUNDING WATERS. FAIR WEATHER CONDITIONS ARE FORECAST TO
CONTINUE ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A BAND
OF LOW LEVEL MOISTURE WILL REACH THE USVI AND EASTERN PR LATE
SUNDAY...ALLOWING ISOLATED TO LOCALLY SCATTERED SHOWERS TO FORM
NEAR OR OVER THE U.S. VIRGIN ISLANDS ON SUNDAY AFTERNOON. DRIER
AIR BEGINS TO FILTER IN AGAIN MON THROUGH THE END OF NEXT WEEK AS
UPPER LEVEL RIDGE AND ASSOCIATED SUBSIDENCE INVERSION STRENGTHENS
FURTHER.

AVIATION...SHALLOW/ISOLD SHRA BUT WL NOT LWR COND BLW VFR SAT-SUN.
WIND ENE 8-18 KT SFC-FL200 THRU SUN.

MARINE...LOCAL BUOYS ARE INDICATING SEAS 3-4 FT NORTH OF THE
ISLANDS AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR
TODAY...NEARSHORE WINDS 10-20 KT MAINLY FROM THE EAST-NORTHEAST
AND SEAS UP TO 5 FT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  71  83  72 /  20  20  20  20
STT  86  74  86  75 /  20  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23






000
FXCA62 TJSJ 201520
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
1120 AM AST SAT DEC 20 2014

.UPDATE...
MOSTLY SUNNY CONDITIONS PREVAILED DURING THE MORNING HOURS. THE
LIMITED SHOWER ACTIVITY OVER THE REGION IS ASSOCIATED WITH A DRY
AIR MASS AS OBSERVED IN THE MIMIC-TOTAL PRECIPITABLE WATER IMAGE.
IN ADDITION...THE LATEST SOUNDING DATA SHOWED PRECIP WATER OF
1.21 INCHES...THEREFORE...TRANQUIL WEATHER CONDITIONS ARE EXPECTED
TO PREVAIL. AROUND EVENING HOURS A RELATIVE MORE HUMID AIR MASS IS
EXPECTED TO ARRIVE AND TRADE WIND SHOWERS CANNOT BE RULED OUT.
NEVERTHELESS...NO SIGNIFICANT WEATHER EVENT IS EXPECTED DUE TO THE
PRESENCE OF A STRONG HIGH PRESSURE IN THE MID-TO-UPPER LEVELS.

&&

.AVIATION...VFR CONDITIONS EXPECTED DURING THE NEXT 24 HRS.
SHALLOW/ISOLD SHRA CANNOT BE RULED OUT...BUT NO SIGNIFICANT
WEATHER EVENT ARE EXPECTED AT THE TAF SITES. SOUNDING DATA SHOWED
ENE AT 3-17 KT UP TO 2KFT.

&&

.MARINE...THE LOCAL BUOY NETWORK IS INDICATING SEAS 3-4 FT ALONG
THE NORTHERN COAST AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR THE
REST OF THE DAY...NEAR-SHORE SEAS BETWEEN 2 AND 5 FEET AND WINDS
UP TO 18 KNOTS ARE EXPECTED. THE BEACH GOERS SHOULD EXERCISE
CAUTION DUE TO MODERATE RISK OF RIP CURRENTS ACROSS MANY OF THE
NORTH FACING BEACHES OF PUERTO RICO...SAINT THOMAS AND SAINT
CROIX.

&&

.PREV DISCUSSION... /ISSUED 520 AM AST SAT DEC 20 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL CONTINUE TO BUILD OVER
THE REGION THROUGH THE NEXT SEVERAL DAYS SUSTAINING A TRADE WIND
CAP. AT THE SURFACE...WEAK SURFACE HIGH PRESSURE NORTH OF THE
ISLANDS WILL MAINTAIN A EAST-NORTHEAST LOW LEVEL WIND FLOW OVER
THE REGION.

DISCUSSION...MOSTLY CLEAR SKIES WERE OBSERVED ACROSS ALL LOCAL
ISLANDS TONIGHT WITH ISOLATED PASSING SHOWERS ACROSS THE
SURROUNDING WATERS. FAIR WEATHER CONDITIONS ARE FORECAST TO
CONTINUE ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A BAND
OF LOW LEVEL MOISTURE WILL REACH THE USVI AND EASTERN PR LATE
SUNDAY...ALLOWING ISOLATED TO LOCALLY SCATTERED SHOWERS TO FORM
NEAR OR OVER THE U.S. VIRGIN ISLANDS ON SUNDAY AFTERNOON. DRIER
AIR BEGINS TO FILTER IN AGAIN MON THROUGH THE END OF NEXT WEEK AS
UPPER LEVEL RIDGE AND ASSOCIATED SUBSIDENCE INVERSION STRENGTHENS
FURTHER.

AVIATION...SHALLOW/ISOLD SHRA BUT WL NOT LWR COND BLW VFR SAT-SUN.
WIND ENE 8-18 KT SFC-FL200 THRU SUN.

MARINE...LOCAL BUOYS ARE INDICATING SEAS 3-4 FT NORTH OF THE
ISLANDS AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR
TODAY...NEARSHORE WINDS 10-20 KT MAINLY FROM THE EAST-NORTHEAST
AND SEAS UP TO 5 FT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  71  83  72 /  20  20  20  20
STT  86  74  86  75 /  20  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

27/23







000
FXCA62 TJSJ 200920
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
520 AM AST SAT DEC 20 2014

.SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL CONTINUE TO BUILD OVER
THE REGION THROUGH THE NEXT SEVERAL DAYS SUSTAINING A TRADE WIND
CAP. AT THE SURFACE...WEAK SURFACE HIGH PRESSURE NORTH OF THE
ISLANDS WILL MAINTAIN A EAST-NORTHEAST LOW LEVEL WIND FLOW OVER
THE REGION.

&&

.DISCUSSION...MOSTLY CLEAR SKIES WERE OBSERVED ACROSS ALL LOCAL
ISLANDS TONIGHT WITH ISOLATED PASSING SHOWERS ACROSS THE
SURROUNDING WATERS. FAIR WEATHER CONDITIONS ARE FORECAST TO
CONTINUE ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A BAND
OF LOW LEVEL MOISTURE WILL REACH THE USVI AND EASTERN PR LATE
SUNDAY...ALLOWING ISOLATED TO LOCALLY SCATTERED SHOWERS TO FORM
NEAR OR OVER THE U.S. VIRGIN ISLANDS ON SUNDAY AFTERNOON. DRIER
AIR BEGINS TO FILTER IN AGAIN MON THROUGH THE END OF NEXT WEEK AS
UPPER LEVEL RIDGE AND ASSOCIATED SUBSIDENCE INVERSION STRENGTHENS
FURTHER.

&&

AVIATION...SHALLOW/ISOLD SHRA BUT WL NOT LWR COND BLW VFR SAT-SUN.
WIND ENE 8-18 KT SFC-FL200 THRU SUN.

&&

.MARINE...LOCAL BUOYS ARE INDICATING SEAS 3-4 FT NORTH OF THE
ISLANDS AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR
TODAY...NEARSHORE WINDS 10-20 KT MAINLY FROM THE EAST-NORTHEAST
AND SEAS UP TO 5 FT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  71  83  72 /  20  20  20  20
STT  86  74  86  75 /  20  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13






000
FXCA62 TJSJ 200920
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
520 AM AST SAT DEC 20 2014

.SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL CONTINUE TO BUILD OVER
THE REGION THROUGH THE NEXT SEVERAL DAYS SUSTAINING A TRADE WIND
CAP. AT THE SURFACE...WEAK SURFACE HIGH PRESSURE NORTH OF THE
ISLANDS WILL MAINTAIN A EAST-NORTHEAST LOW LEVEL WIND FLOW OVER
THE REGION.

&&

.DISCUSSION...MOSTLY CLEAR SKIES WERE OBSERVED ACROSS ALL LOCAL
ISLANDS TONIGHT WITH ISOLATED PASSING SHOWERS ACROSS THE
SURROUNDING WATERS. FAIR WEATHER CONDITIONS ARE FORECAST TO
CONTINUE ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A BAND
OF LOW LEVEL MOISTURE WILL REACH THE USVI AND EASTERN PR LATE
SUNDAY...ALLOWING ISOLATED TO LOCALLY SCATTERED SHOWERS TO FORM
NEAR OR OVER THE U.S. VIRGIN ISLANDS ON SUNDAY AFTERNOON. DRIER
AIR BEGINS TO FILTER IN AGAIN MON THROUGH THE END OF NEXT WEEK AS
UPPER LEVEL RIDGE AND ASSOCIATED SUBSIDENCE INVERSION STRENGTHENS
FURTHER.

&&

AVIATION...SHALLOW/ISOLD SHRA BUT WL NOT LWR COND BLW VFR SAT-SUN.
WIND ENE 8-18 KT SFC-FL200 THRU SUN.

&&

.MARINE...LOCAL BUOYS ARE INDICATING SEAS 3-4 FT NORTH OF THE
ISLANDS AND BELOW 3 FT SOUTH OF THE ISLANDS. FOR
TODAY...NEARSHORE WINDS 10-20 KT MAINLY FROM THE EAST-NORTHEAST
AND SEAS UP TO 5 FT.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  84  71  83  72 /  20  20  20  20
STT  86  74  86  75 /  20  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

54/13







000
FXCA62 TJSJ 200142
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
942 PM AST FRI DEC 19 2014

.UPDATE...MID-UPPER LEVEL RIDGE IS DOMINATING THE FORECAST AREA.
TJSJ 20/00Z RAOB SHOWED A STRONG INVERSION AT 750MB AND PRECIPITABLE
WATER BELOW 1.25 INCHES. THIS SUBSIDENCE PATTERN ACROSS THE NORTHEAST
CARIBBEAN ISLANDS HAVE MAINTAINED THE LOCAL ISLANDS WITHOUT PRECIPITATION
MOST OF THE DAY. THE FAIR WEATHER CONDITIONS ARE FORECAST TO CONTINUE
ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A MOISTURE BAND WILL
REACH THE USVI AND EASTERN PR LATE SUNDAY...ALLOWING ISOLATED TO SCATTERED
SHOWERS TO FORM NEAR OR OVER THE VIRGIN ISLANDS ON SUNDAY AFTERNOON.
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED AT ALL TERMINALS THROUGH THE FORECAST
PERIOD. FEW CLD LYRS MAINLY BTW FL025-FL080...CLR ABV. MOSTLY LGT
PASSING TRADE WND  -SHRA/SHRA EN ROUTE BTW ISLANDS AND OVR OFFSHORE
COASTAL WATERS DURG OVERNIGHT HOURS. NO SIG PRECIP OVR LAND AND NO
SIG OPERATIONAL WX IMPACT DURG PRD. LGT WNDS FM E BELOW FL100 AT
5-15 KTS...BACKING AND BCMG FM N WHILE INCR W/HT TO MAX WND AROUND
40 KTS NR FL400.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS. WINDS OF 15-20 KT CAN BE EXPECTED THROUGH
THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 219 PM AST FRI DEC 19 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL GRADUALLY BUILD OVER THE
REGION DURING THE NEXT SEVERAL DAYS. SURFACE HIGH PRESSURE WILL
BUILD OVER THE REGION DURING THE NEXT FEW DAYS...MAINTAINING A EAST
NORTHEAST LOW LEVEL WIND FLOW OVER THE REGION.

DISCUSSION...DOPPLER WEATHER RADAR DETECTED ONLY LIGHT ISOLATED
SHOWERS MOVING SOUTHWESTWARD MOSTLY OVER THE SURROUNDING COASTAL
WATERS. LIMITED SHOWER ACTIVITY WAS DETECTED OVER LAND AREAS SO FAR
THIS AFTERNOON. HOWEVER UNDER AN EAST NORTHEAST LOW LEVEL WIND FLOW
SOME SHOWERS DEVELOPMENT ARE NOT RULE OUT OVER SOUTHERN HALF OF
PUERTO RICO DURING THE REST OF THE AFTERNOON HOURS. A MID TO UPPER
LEVEL RIDGE IS EXPECTED TO BUILD OVER THE REGION FOR THE NEXT
SEVERAL DAYS. THIS FEATURE WILL INDUCE A GENERALLY FAIR WEATHER
PATTERN ACROSS THE REGION UNTIL AT LEAST THE CHRISTMAS EVE HOLIDAY.
THEREFORE A GENERALLY DRY AND PLEASANT WEATHER PATTERN IS IN STORE
FOR THE REGION FOR THE NEXT SEVERAL DAYS INTERRUPTED ONLY WITH A
SLIGHT INCREASE IN MOISTURE BY SUNDAY. HOWEVER...PATCHES OF LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL CONTINUE TO PROMOTE THE
DEVELOPMENT OF LIGHT ISOLATED SHOWERS OVER EASTERN PUERTO RICO AND
THE U.S. VIRGIN ISLANDS DURING THE NIGHT AND EARLY MORNING HOURS.
NOT SIGNIFICANT WEATHER FEATURE IS EXPECTED TO AFFECT THE FORECAST
AREA UNTIL AT LEAST THE CHRISTMAS EVE AND POSSIBLY BEYOND.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED AT ALL LOCAL FLYING
TERMINALS THROUGH THE FORECAST PERIOD. LATEST TJSJ SOUNDING
INDICATED AN EAST TO EAST NORTHEAST WIND FLOW UP TO 20 KNOTS ALL THE
WAY FROM THE SURFACE TO 20K FEET...BECOMING NORTHERLY AND STRONGER
FROM 20-40K FEET AND EVEN STRONGER FROM THE NORTHWEST ABOVE
40K FEET

MARINE...SEAS UP TO 5 FEET AND WINDS UP TO 18 KNOTS ARE EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  70  84  71  83 /   0  20  20  20
STT  73  86  74  86 /  10  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

09/11






000
FXCA62 TJSJ 200142
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
942 PM AST FRI DEC 19 2014

.UPDATE...MID-UPPER LEVEL RIDGE IS DOMINATING THE FORECAST AREA.
TJSJ 20/00Z RAOB SHOWED A STRONG INVERSION AT 750MB AND PRECIPITABLE
WATER BELOW 1.25 INCHES. THIS SUBSIDENCE PATTERN ACROSS THE NORTHEAST
CARIBBEAN ISLANDS HAVE MAINTAINED THE LOCAL ISLANDS WITHOUT PRECIPITATION
MOST OF THE DAY. THE FAIR WEATHER CONDITIONS ARE FORECAST TO CONTINUE
ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A MOISTURE BAND WILL
REACH THE USVI AND EASTERN PR LATE SUNDAY...ALLOWING ISOLATED TO SCATTERED
SHOWERS TO FORM NEAR OR OVER THE VIRGIN ISLANDS ON SUNDAY AFTERNOON.
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED AT ALL TERMINALS THROUGH THE FORECAST
PERIOD. FEW CLD LYRS MAINLY BTW FL025-FL080...CLR ABV. MOSTLY LGT
PASSING TRADE WND  -SHRA/SHRA EN ROUTE BTW ISLANDS AND OVR OFFSHORE
COASTAL WATERS DURG OVERNIGHT HOURS. NO SIG PRECIP OVR LAND AND NO
SIG OPERATIONAL WX IMPACT DURG PRD. LGT WNDS FM E BELOW FL100 AT
5-15 KTS...BACKING AND BCMG FM N WHILE INCR W/HT TO MAX WND AROUND
40 KTS NR FL400.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS. WINDS OF 15-20 KT CAN BE EXPECTED THROUGH
THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 219 PM AST FRI DEC 19 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL GRADUALLY BUILD OVER THE
REGION DURING THE NEXT SEVERAL DAYS. SURFACE HIGH PRESSURE WILL
BUILD OVER THE REGION DURING THE NEXT FEW DAYS...MAINTAINING A EAST
NORTHEAST LOW LEVEL WIND FLOW OVER THE REGION.

DISCUSSION...DOPPLER WEATHER RADAR DETECTED ONLY LIGHT ISOLATED
SHOWERS MOVING SOUTHWESTWARD MOSTLY OVER THE SURROUNDING COASTAL
WATERS. LIMITED SHOWER ACTIVITY WAS DETECTED OVER LAND AREAS SO FAR
THIS AFTERNOON. HOWEVER UNDER AN EAST NORTHEAST LOW LEVEL WIND FLOW
SOME SHOWERS DEVELOPMENT ARE NOT RULE OUT OVER SOUTHERN HALF OF
PUERTO RICO DURING THE REST OF THE AFTERNOON HOURS. A MID TO UPPER
LEVEL RIDGE IS EXPECTED TO BUILD OVER THE REGION FOR THE NEXT
SEVERAL DAYS. THIS FEATURE WILL INDUCE A GENERALLY FAIR WEATHER
PATTERN ACROSS THE REGION UNTIL AT LEAST THE CHRISTMAS EVE HOLIDAY.
THEREFORE A GENERALLY DRY AND PLEASANT WEATHER PATTERN IS IN STORE
FOR THE REGION FOR THE NEXT SEVERAL DAYS INTERRUPTED ONLY WITH A
SLIGHT INCREASE IN MOISTURE BY SUNDAY. HOWEVER...PATCHES OF LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL CONTINUE TO PROMOTE THE
DEVELOPMENT OF LIGHT ISOLATED SHOWERS OVER EASTERN PUERTO RICO AND
THE U.S. VIRGIN ISLANDS DURING THE NIGHT AND EARLY MORNING HOURS.
NOT SIGNIFICANT WEATHER FEATURE IS EXPECTED TO AFFECT THE FORECAST
AREA UNTIL AT LEAST THE CHRISTMAS EVE AND POSSIBLY BEYOND.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED AT ALL LOCAL FLYING
TERMINALS THROUGH THE FORECAST PERIOD. LATEST TJSJ SOUNDING
INDICATED AN EAST TO EAST NORTHEAST WIND FLOW UP TO 20 KNOTS ALL THE
WAY FROM THE SURFACE TO 20K FEET...BECOMING NORTHERLY AND STRONGER
FROM 20-40K FEET AND EVEN STRONGER FROM THE NORTHWEST ABOVE
40K FEET

MARINE...SEAS UP TO 5 FEET AND WINDS UP TO 18 KNOTS ARE EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  70  84  71  83 /   0  20  20  20
STT  73  86  74  86 /  10  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

09/11







000
FXCA62 TJSJ 200142
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
942 PM AST FRI DEC 19 2014

.UPDATE...MID-UPPER LEVEL RIDGE IS DOMINATING THE FORECAST AREA.
TJSJ 20/00Z RAOB SHOWED A STRONG INVERSION AT 750MB AND PRECIPITABLE
WATER BELOW 1.25 INCHES. THIS SUBSIDENCE PATTERN ACROSS THE NORTHEAST
CARIBBEAN ISLANDS HAVE MAINTAINED THE LOCAL ISLANDS WITHOUT PRECIPITATION
MOST OF THE DAY. THE FAIR WEATHER CONDITIONS ARE FORECAST TO CONTINUE
ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A MOISTURE BAND WILL
REACH THE USVI AND EASTERN PR LATE SUNDAY...ALLOWING ISOLATED TO SCATTERED
SHOWERS TO FORM NEAR OR OVER THE VIRGIN ISLANDS ON SUNDAY AFTERNOON.
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED AT ALL TERMINALS THROUGH THE FORECAST
PERIOD. FEW CLD LYRS MAINLY BTW FL025-FL080...CLR ABV. MOSTLY LGT
PASSING TRADE WND  -SHRA/SHRA EN ROUTE BTW ISLANDS AND OVR OFFSHORE
COASTAL WATERS DURG OVERNIGHT HOURS. NO SIG PRECIP OVR LAND AND NO
SIG OPERATIONAL WX IMPACT DURG PRD. LGT WNDS FM E BELOW FL100 AT
5-15 KTS...BACKING AND BCMG FM N WHILE INCR W/HT TO MAX WND AROUND
40 KTS NR FL400.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS. WINDS OF 15-20 KT CAN BE EXPECTED THROUGH
THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 219 PM AST FRI DEC 19 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL GRADUALLY BUILD OVER THE
REGION DURING THE NEXT SEVERAL DAYS. SURFACE HIGH PRESSURE WILL
BUILD OVER THE REGION DURING THE NEXT FEW DAYS...MAINTAINING A EAST
NORTHEAST LOW LEVEL WIND FLOW OVER THE REGION.

DISCUSSION...DOPPLER WEATHER RADAR DETECTED ONLY LIGHT ISOLATED
SHOWERS MOVING SOUTHWESTWARD MOSTLY OVER THE SURROUNDING COASTAL
WATERS. LIMITED SHOWER ACTIVITY WAS DETECTED OVER LAND AREAS SO FAR
THIS AFTERNOON. HOWEVER UNDER AN EAST NORTHEAST LOW LEVEL WIND FLOW
SOME SHOWERS DEVELOPMENT ARE NOT RULE OUT OVER SOUTHERN HALF OF
PUERTO RICO DURING THE REST OF THE AFTERNOON HOURS. A MID TO UPPER
LEVEL RIDGE IS EXPECTED TO BUILD OVER THE REGION FOR THE NEXT
SEVERAL DAYS. THIS FEATURE WILL INDUCE A GENERALLY FAIR WEATHER
PATTERN ACROSS THE REGION UNTIL AT LEAST THE CHRISTMAS EVE HOLIDAY.
THEREFORE A GENERALLY DRY AND PLEASANT WEATHER PATTERN IS IN STORE
FOR THE REGION FOR THE NEXT SEVERAL DAYS INTERRUPTED ONLY WITH A
SLIGHT INCREASE IN MOISTURE BY SUNDAY. HOWEVER...PATCHES OF LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL CONTINUE TO PROMOTE THE
DEVELOPMENT OF LIGHT ISOLATED SHOWERS OVER EASTERN PUERTO RICO AND
THE U.S. VIRGIN ISLANDS DURING THE NIGHT AND EARLY MORNING HOURS.
NOT SIGNIFICANT WEATHER FEATURE IS EXPECTED TO AFFECT THE FORECAST
AREA UNTIL AT LEAST THE CHRISTMAS EVE AND POSSIBLY BEYOND.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED AT ALL LOCAL FLYING
TERMINALS THROUGH THE FORECAST PERIOD. LATEST TJSJ SOUNDING
INDICATED AN EAST TO EAST NORTHEAST WIND FLOW UP TO 20 KNOTS ALL THE
WAY FROM THE SURFACE TO 20K FEET...BECOMING NORTHERLY AND STRONGER
FROM 20-40K FEET AND EVEN STRONGER FROM THE NORTHWEST ABOVE
40K FEET

MARINE...SEAS UP TO 5 FEET AND WINDS UP TO 18 KNOTS ARE EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  70  84  71  83 /   0  20  20  20
STT  73  86  74  86 /  10  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

09/11






000
FXCA62 TJSJ 200142
AFDSJU

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JUAN PR
942 PM AST FRI DEC 19 2014

.UPDATE...MID-UPPER LEVEL RIDGE IS DOMINATING THE FORECAST AREA.
TJSJ 20/00Z RAOB SHOWED A STRONG INVERSION AT 750MB AND PRECIPITABLE
WATER BELOW 1.25 INCHES. THIS SUBSIDENCE PATTERN ACROSS THE NORTHEAST
CARIBBEAN ISLANDS HAVE MAINTAINED THE LOCAL ISLANDS WITHOUT PRECIPITATION
MOST OF THE DAY. THE FAIR WEATHER CONDITIONS ARE FORECAST TO CONTINUE
ACROSS THE ISLANDS MOST OF THE WEEKEND. HOWEVER...A MOISTURE BAND WILL
REACH THE USVI AND EASTERN PR LATE SUNDAY...ALLOWING ISOLATED TO SCATTERED
SHOWERS TO FORM NEAR OR OVER THE VIRGIN ISLANDS ON SUNDAY AFTERNOON.
NO CHANGES WERE INTRODUCED TO THE FORECAST PACKAGE THIS EVENING.

&&

.AVIATION...VFR CONDS EXPECTED AT ALL TERMINALS THROUGH THE FORECAST
PERIOD. FEW CLD LYRS MAINLY BTW FL025-FL080...CLR ABV. MOSTLY LGT
PASSING TRADE WND  -SHRA/SHRA EN ROUTE BTW ISLANDS AND OVR OFFSHORE
COASTAL WATERS DURG OVERNIGHT HOURS. NO SIG PRECIP OVR LAND AND NO
SIG OPERATIONAL WX IMPACT DURG PRD. LGT WNDS FM E BELOW FL100 AT
5-15 KTS...BACKING AND BCMG FM N WHILE INCR W/HT TO MAX WND AROUND
40 KTS NR FL400.

&&

.MARINE...SEAS 3-5 FT WITH OCCASIONAL WAVES UP TO 6 FT IN THE
OFFSHORE ATLANTIC WATERS. WINDS OF 15-20 KT CAN BE EXPECTED THROUGH
THE WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 219 PM AST FRI DEC 19 2014/

SYNOPSIS...MID TO UPPER LEVEL RIDGE WILL GRADUALLY BUILD OVER THE
REGION DURING THE NEXT SEVERAL DAYS. SURFACE HIGH PRESSURE WILL
BUILD OVER THE REGION DURING THE NEXT FEW DAYS...MAINTAINING A EAST
NORTHEAST LOW LEVEL WIND FLOW OVER THE REGION.

DISCUSSION...DOPPLER WEATHER RADAR DETECTED ONLY LIGHT ISOLATED
SHOWERS MOVING SOUTHWESTWARD MOSTLY OVER THE SURROUNDING COASTAL
WATERS. LIMITED SHOWER ACTIVITY WAS DETECTED OVER LAND AREAS SO FAR
THIS AFTERNOON. HOWEVER UNDER AN EAST NORTHEAST LOW LEVEL WIND FLOW
SOME SHOWERS DEVELOPMENT ARE NOT RULE OUT OVER SOUTHERN HALF OF
PUERTO RICO DURING THE REST OF THE AFTERNOON HOURS. A MID TO UPPER
LEVEL RIDGE IS EXPECTED TO BUILD OVER THE REGION FOR THE NEXT
SEVERAL DAYS. THIS FEATURE WILL INDUCE A GENERALLY FAIR WEATHER
PATTERN ACROSS THE REGION UNTIL AT LEAST THE CHRISTMAS EVE HOLIDAY.
THEREFORE A GENERALLY DRY AND PLEASANT WEATHER PATTERN IS IN STORE
FOR THE REGION FOR THE NEXT SEVERAL DAYS INTERRUPTED ONLY WITH A
SLIGHT INCREASE IN MOISTURE BY SUNDAY. HOWEVER...PATCHES OF LOW
LEVEL MOISTURE EMBEDDED IN THE TRADES WILL CONTINUE TO PROMOTE THE
DEVELOPMENT OF LIGHT ISOLATED SHOWERS OVER EASTERN PUERTO RICO AND
THE U.S. VIRGIN ISLANDS DURING THE NIGHT AND EARLY MORNING HOURS.
NOT SIGNIFICANT WEATHER FEATURE IS EXPECTED TO AFFECT THE FORECAST
AREA UNTIL AT LEAST THE CHRISTMAS EVE AND POSSIBLY BEYOND.

AVIATION...MOSTLY VFR CONDITIONS EXPECTED AT ALL LOCAL FLYING
TERMINALS THROUGH THE FORECAST PERIOD. LATEST TJSJ SOUNDING
INDICATED AN EAST TO EAST NORTHEAST WIND FLOW UP TO 20 KNOTS ALL THE
WAY FROM THE SURFACE TO 20K FEET...BECOMING NORTHERLY AND STRONGER
FROM 20-40K FEET AND EVEN STRONGER FROM THE NORTHWEST ABOVE
40K FEET

MARINE...SEAS UP TO 5 FEET AND WINDS UP TO 18 KNOTS ARE EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
SJU  70  84  71  83 /   0  20  20  20
STT  73  86  74  86 /  10  20  20  20

&&

.SJU WATCHES/WARNINGS/ADVISORIES...
PR...NONE.
VI...NONE.
COASTAL WATERS...NONE.
&&

$$

09/11







    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