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000
AGAK78 PACR 261826
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
10 AM AKDT TUE MAY 26 2015

...FLOOD POTENTIAL...

THE SOUTHWEST PORTION OF THE STATE HAS BEEN IMPACTED WITH PERSISTANT
RAIN OVER THE PAST WEEK. SOME AREAS RECEIVED AN ESTIMATED 3 TO 4
INCHES. THIS HAS RESULTED IN STEADILY RISING WATER LEVELS ON AREA
RIVERS DRAINING THE WOOD RIVER MOUNTAINS OF SOUTHWEST... SUCH AS THE
NUYAKUK... NUSHAGAGK AND WOOD RIVER.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

THE MASSIVE RIDGE OVER THE EASTERN PACIFIC WHICH EXTENDS ON UP INTO
ARCTIC REMAINS IN PLACE WHILE A CLOSED LOW NEAR KODIAK TRANSITIONS
THROUGH THE RIDGE AND COMES OUT ON THE OTHER SIDE NEAR THE NORTHERN
PANHANDLE BY WEDNESDAY MORNING. THE ONLY WEATHER TO SPEAK OF AS FAR
AS THE RFC IS CONCERNED IS THE CONVECTION THAT IS BROUGHT EASTWARD
INTO THE EASTERN UPLANDS WHILE ALL THIS IS HAPPENING.

...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
TOOA2    IMNAVIAT CREEK SNOTE PC RM :   0.60
TEUA2    TEUCHET CREEK SNOTEL PC R2 :   0.55
MTRA2    MT RYAN SNOTEL       PP RG :   0.51
UCEA2    UPPER CHENA DOME SNO PC RM :   0.50
MTRA2    MT RYAN SNOTEL       PC RM :   0.50
MNCA2    MONUMENT CREEK SNOTE PC RM :   0.50
ATGA2    ATIGUN PASS SNOTEL   PC RM :   0.50
UCEA2    UPPER CHENA DOME SNO PC R2 :   0.45
AKNQ2    AIKEN LAKE           PC RG :   0.43
MNCA2    MONUMENT CREEK SNOTE PP RG :   0.42
MCPA2    MCARTHUR PASS        PP RG :   0.42
NUKA2    NUKA GLACIER SNOTEL  PC RM :   0.40
PADU     DUTCH HARBOR         PP RZ :   0.34
SGRA2    SAGAVANIRKTOK RIVER  PC RG :   0.29
COVA2    COVILLE RAWS         PP RG :   0.27
PADQ     KODIAK               PP RZ :   0.26
ARGA2    ATIGUN RIVER BELOW G PP RG :   0.25

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE EXCEPT THE EXTREME
NORTHEAST MAINLAND.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER THE ENTIRE STATE ESPECIALLY THE
SOUTHEAST.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH





000
AGAK78 PACR 261826
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
10 AM AKDT TUE MAY 26 2015

...FLOOD POTENTIAL...

THE SOUTHWEST PORTION OF THE STATE HAS BEEN IMPACTED WITH PERSISTANT
RAIN OVER THE PAST WEEK. SOME AREAS RECEIVED AN ESTIMATED 3 TO 4
INCHES. THIS HAS RESULTED IN STEADILY RISING WATER LEVELS ON AREA
RIVERS DRAINING THE WOOD RIVER MOUNTAINS OF SOUTHWEST... SUCH AS THE
NUYAKUK... NUSHAGAGK AND WOOD RIVER.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

THE MASSIVE RIDGE OVER THE EASTERN PACIFIC WHICH EXTENDS ON UP INTO
ARCTIC REMAINS IN PLACE WHILE A CLOSED LOW NEAR KODIAK TRANSITIONS
THROUGH THE RIDGE AND COMES OUT ON THE OTHER SIDE NEAR THE NORTHERN
PANHANDLE BY WEDNESDAY MORNING. THE ONLY WEATHER TO SPEAK OF AS FAR
AS THE RFC IS CONCERNED IS THE CONVECTION THAT IS BROUGHT EASTWARD
INTO THE EASTERN UPLANDS WHILE ALL THIS IS HAPPENING.

...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
TOOA2    IMNAVIAT CREEK SNOTE PC RM :   0.60
TEUA2    TEUCHET CREEK SNOTEL PC R2 :   0.55
MTRA2    MT RYAN SNOTEL       PP RG :   0.51
UCEA2    UPPER CHENA DOME SNO PC RM :   0.50
MTRA2    MT RYAN SNOTEL       PC RM :   0.50
MNCA2    MONUMENT CREEK SNOTE PC RM :   0.50
ATGA2    ATIGUN PASS SNOTEL   PC RM :   0.50
UCEA2    UPPER CHENA DOME SNO PC R2 :   0.45
AKNQ2    AIKEN LAKE           PC RG :   0.43
MNCA2    MONUMENT CREEK SNOTE PP RG :   0.42
MCPA2    MCARTHUR PASS        PP RG :   0.42
NUKA2    NUKA GLACIER SNOTEL  PC RM :   0.40
PADU     DUTCH HARBOR         PP RZ :   0.34
SGRA2    SAGAVANIRKTOK RIVER  PC RG :   0.29
COVA2    COVILLE RAWS         PP RG :   0.27
PADQ     KODIAK               PP RZ :   0.26
ARGA2    ATIGUN RIVER BELOW G PP RG :   0.25

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE EXCEPT THE EXTREME
NORTHEAST MAINLAND.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER THE ENTIRE STATE ESPECIALLY THE
SOUTHEAST.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH




000
AGAK78 PACR 252204
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
200 PM AKDT MON MAY 25 2015

...FLOOD POTENTIAL...

THE SOUTHWEST PORTION OF THE STATE HAS BEEN IMPACTED WITH PERSISTANT
RAIN OVER THE PAST WEEK. SOME AREAS RECEIVED AN ESTIMATED 3 TO 4
INCHES. THIS HAS RESULTED IN STEADILY RISING WATER LEVELS ON AREA
RIVERS DRAINING THE WOOD RIVER MOUNTAINS... SUCH AS THE NUYAKEK...
NUSHAGAK AND WOOD RIVER.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

THE ANOMALOUSLY STRONG RIDGE OVER THE EASTERN PACIFIC WHICH EXTENDS
WELL INTO THE WESTERN CANADA AND EASTERN ALASKA REMAINS IN PLACE IN
THE SHORT TERM. A TROUGH OVER THE SOUTHWEST SEEMS TO GET CUTOFF FROM
THE MAIN FLOW AND ENDS UP OVER THE NORTHERN PANHANDLE BY WEDNESDAY
MORNING. IN THE LONGER TERM... THERE APPEARS TO BE A SLIGHT CHANGE
IN MODEL OUTPUTS TODAY WITH THE BERING SEA LOW NOW DEVELOPING A BIT
FURTHER WEST WHILE THE RIDGE OF HIGH PRESSURE RETROGRADING BACK
OVER THE MAINLAND... A SOLUTION THAT ALL MODELS SEEM TO AGREE UPON.

CONVECTION OVER THE NORTHWEST WILL BE THE GREATEST AREA OF CONCERN
DURING THE NEXT 24 HOURS. WATER LEVELS REMAIN ELEVATED ACROSS THE
NORTH SLOPE AND ANY ADDITIONAL RAINFALL WILL RAPIDLY RUNOFF TO RIVER
CHANNELS.


...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
PSJA2    PORT SAN JUAN        PC RM :   0.90
NRDA2    NUYAKUK R NR DILLING PP RG :   0.70
PAKN     KING SALMON          PP RZ :   0.51
TTKA2    TATITLEK             PC RM :   0.50
CKLA2    CAPE KIAVAK RAWS     PC RG :   0.47
TMLA2    TWELVE MILE LAKE     PC RP :   0.40
SUGA2    SUGARLOAF MOUNTAIN   PC RM :   0.40
NUCA2    NUCHEK               PC RM :   0.40
EYKA2    MT EYAK              PC RM :   0.40
ESIA2    ESTHER ISLAND        PC RM :   0.40
UCEA2    UPPER CHENA DOME SNO PP RG :   0.37
HRPA2    HORSEPASTURE PASS    PC RM :   0.36
PEDA2    PEDERSEN LAGOON      PP RG :   0.34
TEUA2    TEUCHET CREEK SNOTEL PP RG :   0.33
PACV     CORDOVA              PP RZ :   0.33
SRFA2    STRAWBERRY REEF      PC RZ :   0.31
BGLA2    BERING GLACIER RAWS  PP RG :   0.26
KSHA2    KANTISHNA            PC RZ :   0.25

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER MOST OF SOUTHEASTERN MAINLAND AND
THE PANHANDLE OF ALASKA.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH





000
AGAK78 PACR 252204
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
200 PM AKDT MON MAY 25 2015

...FLOOD POTENTIAL...

THE SOUTHWEST PORTION OF THE STATE HAS BEEN IMPACTED WITH PERSISTANT
RAIN OVER THE PAST WEEK. SOME AREAS RECEIVED AN ESTIMATED 3 TO 4
INCHES. THIS HAS RESULTED IN STEADILY RISING WATER LEVELS ON AREA
RIVERS DRAINING THE WOOD RIVER MOUNTAINS... SUCH AS THE NUYAKEK...
NUSHAGAK AND WOOD RIVER.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

THE ANOMALOUSLY STRONG RIDGE OVER THE EASTERN PACIFIC WHICH EXTENDS
WELL INTO THE WESTERN CANADA AND EASTERN ALASKA REMAINS IN PLACE IN
THE SHORT TERM. A TROUGH OVER THE SOUTHWEST SEEMS TO GET CUTOFF FROM
THE MAIN FLOW AND ENDS UP OVER THE NORTHERN PANHANDLE BY WEDNESDAY
MORNING. IN THE LONGER TERM... THERE APPEARS TO BE A SLIGHT CHANGE
IN MODEL OUTPUTS TODAY WITH THE BERING SEA LOW NOW DEVELOPING A BIT
FURTHER WEST WHILE THE RIDGE OF HIGH PRESSURE RETROGRADING BACK
OVER THE MAINLAND... A SOLUTION THAT ALL MODELS SEEM TO AGREE UPON.

CONVECTION OVER THE NORTHWEST WILL BE THE GREATEST AREA OF CONCERN
DURING THE NEXT 24 HOURS. WATER LEVELS REMAIN ELEVATED ACROSS THE
NORTH SLOPE AND ANY ADDITIONAL RAINFALL WILL RAPIDLY RUNOFF TO RIVER
CHANNELS.


...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
PSJA2    PORT SAN JUAN        PC RM :   0.90
NRDA2    NUYAKUK R NR DILLING PP RG :   0.70
PAKN     KING SALMON          PP RZ :   0.51
TTKA2    TATITLEK             PC RM :   0.50
CKLA2    CAPE KIAVAK RAWS     PC RG :   0.47
TMLA2    TWELVE MILE LAKE     PC RP :   0.40
SUGA2    SUGARLOAF MOUNTAIN   PC RM :   0.40
NUCA2    NUCHEK               PC RM :   0.40
EYKA2    MT EYAK              PC RM :   0.40
ESIA2    ESTHER ISLAND        PC RM :   0.40
UCEA2    UPPER CHENA DOME SNO PP RG :   0.37
HRPA2    HORSEPASTURE PASS    PC RM :   0.36
PEDA2    PEDERSEN LAGOON      PP RG :   0.34
TEUA2    TEUCHET CREEK SNOTEL PP RG :   0.33
PACV     CORDOVA              PP RZ :   0.33
SRFA2    STRAWBERRY REEF      PC RZ :   0.31
BGLA2    BERING GLACIER RAWS  PP RG :   0.26
KSHA2    KANTISHNA            PC RZ :   0.25

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER MOST OF SOUTHEASTERN MAINLAND AND
THE PANHANDLE OF ALASKA.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH




000
AGAK78 PACR 242237
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT SUN MAY 24 2015

...FLOOD POTENTIAL...

A FLOOD WARNING IS IN EFFECT FOR FORT YUKON ON THE PORCUPINE RIVER.
A FLOOD WATCH FOR THE PORCUPINE RIVER HAS BEEN UPDATED TO INCLUDE
THE REACH FROM THE MOUTH OF THE PORCUPINE RIVER TO THE MOUTH OF THE
COLEEN RIVER UNTIL SUNDAY EVENING. VERY WARM TEMPERATURES HAVE
DRAMATICALLY INCREASED SNOW MELT...RESULTING IN BANKFULL OR OVER
BANKFULL CONDITIONS. WATER LEVELS NEAR THE NORTH SIDE OF VILLAGE OF
FORT YUKON HAVE BEEN NEARLY STEAD FOR THE LAST COUPLE OF DAYS.

WATER IS FLOWING OVER PORTIONS OF THE DALTON HIGHWAY BETWEEN
MILEPOSTS 394 AND THE DEADHORSE AIRPORT. THE ROAD REMAINS CLOSED
BETWEEN MILE 334 AN 413 AND IS EXPECTED TO REMAIN CLOSED THROUGH
NEXT WEEK.  A FLOOD WARNING HAS BEEN ISSUED UNTIL 415 PM SUNDAY.
SINCE WEDNESDAY WATER LEVELS IN THE VICINITY OF THE DEADHORSE
AIRPORT HAVE DROPPED.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

A LARGE BERING SEA LOW HAS DEVELOPED IN THE CENTRAL BERING SEA WHILE
A ANOMALOUSLY STRONG RIDGE REMAINS FIRMLY IN PLACE OVER THE EASTERN
PACIFIC THAT EXTENDS UP INTO WESTERN CANADA. GOOD MODEL AGREEMENT
KEEPS THIS PATTERN GOING WELL INTO NEXT WEEK WITH RE-ENFORCEMENTS OF
THE LOW IN THE BERING COMING ON TUESDAY. COOLER AND WETTER
CONDITIONS SPREAD ACROSS THE CENTRAL MAINLAND AS SHORT WAVE ACTIVITY
BEHIND THE OCCLUDED FRONT KEEP THE THE THREAT OF SHOWERS EARLY THEN
A MORE CONVECTIVE REGIME DEVELOPS BY MID-WEEK ESPECIALLY ACROSS THE
INTERIOR AND NORTH SLOPE

...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
MCPA2    MCARTHUR PASS        PP RG :   1.23
PEDA2    PEDERSEN LAGOON      PC RG :   0.86
PSJA2    PORT SAN JUAN        PC RM :   0.80
UNRA2    UPPER NUKA RIVER NR  PP RG :   0.60
YESA2    MOUNT ALYESKA SNOTEL PC RM :   0.50
WRYA2    WEARY LAKE           PC RM :   0.50
ESIA2    ESTHER ISLAND        PC RM :   0.50
PAVC     KING COVE            PP RZ :   0.48
SVRA2    SILVER SALMON LAKES  PP RG :   0.42
SNTA2    SAND POINT CRN       PP RG :   0.40
KCKA2    KACHEMAK CREEK       PC RM :   0.40
PAWD     SEWARD               PP RZ :   0.38
PATO     PORTAGE GLACIER      PP RZ :   0.35

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER MOST OF SOUTHEASTERN MAINLAND AND
THE PANHANDLE OF ALASKA.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH





000
AGAK78 PACR 242237
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT SUN MAY 24 2015

...FLOOD POTENTIAL...

A FLOOD WARNING IS IN EFFECT FOR FORT YUKON ON THE PORCUPINE RIVER.
A FLOOD WATCH FOR THE PORCUPINE RIVER HAS BEEN UPDATED TO INCLUDE
THE REACH FROM THE MOUTH OF THE PORCUPINE RIVER TO THE MOUTH OF THE
COLEEN RIVER UNTIL SUNDAY EVENING. VERY WARM TEMPERATURES HAVE
DRAMATICALLY INCREASED SNOW MELT...RESULTING IN BANKFULL OR OVER
BANKFULL CONDITIONS. WATER LEVELS NEAR THE NORTH SIDE OF VILLAGE OF
FORT YUKON HAVE BEEN NEARLY STEAD FOR THE LAST COUPLE OF DAYS.

WATER IS FLOWING OVER PORTIONS OF THE DALTON HIGHWAY BETWEEN
MILEPOSTS 394 AND THE DEADHORSE AIRPORT. THE ROAD REMAINS CLOSED
BETWEEN MILE 334 AN 413 AND IS EXPECTED TO REMAIN CLOSED THROUGH
NEXT WEEK.  A FLOOD WARNING HAS BEEN ISSUED UNTIL 415 PM SUNDAY.
SINCE WEDNESDAY WATER LEVELS IN THE VICINITY OF THE DEADHORSE
AIRPORT HAVE DROPPED.

PLEASE NOTE THAT EVEN THOUGH A RIVER REACH MAY BE LABELED OPEN OR
MOSTLY OPEN... IT IS STILL POSSIBLE FOR ICE RUNS FROM UPSTREAM TO
PASS THROUGH THESE REACHES AND MAKE TRAVEL UNSAFE.

FOR MORE UP-TO-DATE BREAKUP INFORMATION... PLEASE VISIT:
HTTP://APRFC.ARH.NOAA.GOV/DATA/MAPS/BRKUP_MAP.PHP. AND PLEASE REFER
TO THE WATCH... WARNING... AND ADVISORY PRODUCTS FOR MORE
INFORMATION.

...HYDROMETEOROLOGICAL DISCUSSION...

A LARGE BERING SEA LOW HAS DEVELOPED IN THE CENTRAL BERING SEA WHILE
A ANOMALOUSLY STRONG RIDGE REMAINS FIRMLY IN PLACE OVER THE EASTERN
PACIFIC THAT EXTENDS UP INTO WESTERN CANADA. GOOD MODEL AGREEMENT
KEEPS THIS PATTERN GOING WELL INTO NEXT WEEK WITH RE-ENFORCEMENTS OF
THE LOW IN THE BERING COMING ON TUESDAY. COOLER AND WETTER
CONDITIONS SPREAD ACROSS THE CENTRAL MAINLAND AS SHORT WAVE ACTIVITY
BEHIND THE OCCLUDED FRONT KEEP THE THE THREAT OF SHOWERS EARLY THEN
A MORE CONVECTIVE REGIME DEVELOPS BY MID-WEEK ESPECIALLY ACROSS THE
INTERIOR AND NORTH SLOPE

...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
MCPA2    MCARTHUR PASS        PP RG :   1.23
PEDA2    PEDERSEN LAGOON      PC RG :   0.86
PSJA2    PORT SAN JUAN        PC RM :   0.80
UNRA2    UPPER NUKA RIVER NR  PP RG :   0.60
YESA2    MOUNT ALYESKA SNOTEL PC RM :   0.50
WRYA2    WEARY LAKE           PC RM :   0.50
ESIA2    ESTHER ISLAND        PC RM :   0.50
PAVC     KING COVE            PP RZ :   0.48
SVRA2    SILVER SALMON LAKES  PP RG :   0.42
SNTA2    SAND POINT CRN       PP RG :   0.40
KCKA2    KACHEMAK CREEK       PC RM :   0.40
PAWD     SEWARD               PP RZ :   0.38
PATO     PORTAGE GLACIER      PP RZ :   0.35

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE ENTIRE STATE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
BELOW NORMAL PRECIPITATION OVER MOST OF SOUTHEASTERN MAINLAND AND
THE PANHANDLE OF ALASKA.

PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER
INFORMATION.

....................................................................

A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

A GRAPHICAL SLIDE SHOW PRESENTATION OF HYDROMET ISSUES IS AVAILABLE
AT HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/PRESENT
$$

ETH




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