Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 262245
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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI AUG 26 2016

...FLOOD POTENTIAL...

SEVERAL DAYS OF RAINFALL OVER THE WESTERN SUSITNA RIVER VALLEY...
WHICH INCLUDES THE YENTNA...SKWENTNA AND CHULITNA RIVERS... HAS
RESULTED IN HIGH WATER LEVELS. SOME LOCAL MINOR OR NUISANCE FLOODING
HAS BEEN REPORTED. PLEASE REFER TO THE LATEST FLOOD ADVISORY FOR
MORE INFORMATION.

HEAVY RAIN IN THE WESTERN BROOKS RANGE LAST WEEKEND HAS CAUSED HIGH
WATER LEVELS ON MANY STREAMS AND RIVERS IN THAT REGION OF THE STATE.
HIGH WATER IS EXPECTED TO REMAIN THROUGH THE WEEKEND. PLEASE REFER
TO THE SPECIAL WEATHER STATEMENT REGARDING THIS EVENT.

OTHERWISE THE FLOOD POTENTIAL IS LOW FOR THE REST OF THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

A DOUBLE HEADED LOW OVER THE BERING SEA AND CENTRAL NORTH PACIFIC
AND A RIDGE OVER THE NORTHEASTERN PACIFIC REMAINS THE MAIN WEATHER
FEATURES. BETWEEN THESE FEATURES IS A SOUTHERLY FETCH THAT IS
TAPPING TROPIC AND SUB-TROPICAL MOISTURE. OVER THE TOP OF THE RIDGE
CAME A RELATIVELY STRONG SHORTWAVE THAT WILL PUSH THROUGH THE
SOUTHEAST HELPING TO SQUASH THE RIDGE IN THE PACIFIC. THIS ALSO
OPENS UP THE WEST TO A DEVELOPING RIDGE THAT WILL PROVIDE MUCH OF
THE MAINLAND WITH DECENT WEATHER THROUGH THE WEEKEND. THE PANHANDLE
WILL BE THE ONLY LOCATION IN THE STATE TO RECEIVE AN APPRECIABLE
AMOUNT OF RAIN WITH A MAXIMUM OCCURRING IN THE CENTRAL COASTAL
MOUNTAINS WHERE AROUND 1 TO 2 INCHES CAN BE EXPECTED EARLY ON
FRIDAY.

...PRECIPITATION...

SELECTED PRECIPITATION TOTALS OVER THE PAST 24 HOURS ENDING AT 4 AM
TODAY:

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
GGLA2    GATES GLACIER        PC RG :   2.58
DBWA2    DRY BAY GLACIER BAY  PP RG :   2.41
TTKA2    TATITLEK             PC RM :   2.00
EYKA2    MT EYAK              PC RM :   2.00
SRYA2    SITUK RIVER NR YAKUT PP RG :   1.90
RUGA2    RUTH GLACIER RAWS    PC RG :   1.84
PACV     CORDOVA              PP RZ :   1.78
PAYA     YAKUTAT              PP RZ :   1.62
ALWQ9    AISHIHIK LAKE NR WHI PP RG :   1.62
SAWA2    SPEEL ARM STATION 4- PC RZ :   1.61
RUGA2    RUTH GLACIER RAWS    PP RG :   1.55
SLWQ9    SEKULMUN LAKE NR WHI PP RG :   1.54
SRFA2    STRAWBERRY REEF      PC R2 :   1.38
SUGA2    SUGARLOAF MOUNTAIN   PC RM :   1.30
SNCA2    MAY CREEK            PC RM :   1.30
MCKA2    MAY CREEK RAWS       PC RG :   1.25
PAVD     VALDEZ               PP RZ :   1.11
UPPA2    UPPER TSAINA SNOTEL  PC RM :   1.10
CBHA2    CORDOVA BOAT HARBOR  PC RP :   1.04
JWJA2    JACK WADE JUNCTION S PC RM :   1.00
CTUA2    CHITITU CAMP         PC RG :   0.98
BRMA2    MIDDLE FORK BRADLEY  PP RG :   0.97
CTUA2    CHITITU CAMP         PP RG :   0.96
SNEA2    SNETTISHAM POWER STA PC RZ :   0.88
DOYA2    DONNELLY RAWS        PP RG :   0.88
PAWR     WHITTIER             PP RZ :   0.85
UCEA2    UPPER CHENA DOME SNO PP RG :   0.83
GNNA2    GLENNALLEN CRN       PC R3 :   0.81
INPA2    INDIAN PASS SNOTEL   PC RM :   0.80

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES FOR THE ENTIRE STATE... ESPECIALLY
SOUTHWEST.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL PRECIPITATION OVER THE SOUTHWEST AS WELL.

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

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

THIS TEXT PRODUCT WILL BE ISSUED DAILY UNTIL FREEZEUP IN THE FALL. A
GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://WWW.WEATHER.GOV/APRFC/GRAPHICALHMD

$$



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