Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 302255
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT THU JUL 30 2015

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW ACROSS THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

THE UPPER LEVEL PATTERN THIS MORNING HAS A LOW WELL NORTH OF THE
NORTH SLOPE WITH A VERY BROAD TROUGH WITH WEAK FLOW TO THE SOUTH
COVERING THE MAINLAND AND THE GULF... AND A RIDGE OVER THE WESTERN
BERING AND KAMCHATKA.  THE RIDGE TO THE WEST WILL SLOWLY BUILD INTO
THE INTERIOR AND THE SOUTHERN MAINLAND... LEAVING AN ELONGATED WEAK
TROUGH OVER THE GULF BY FRIDAY MORNING.

HEAVIEST WIDESPREAD RAIN FOR TODAY IS EXPECTED OVER THE PANHANDLE...
WITH SCATTERED SHOWERS AND THUNDERSTORMS OVER THE SOUTHERN MAINLAND
AND THE EASTERN INTERIOR.  ON FRIDAY THE HEAVIEST RAINS WILL STILL
BE OVER PORTIONS OF SOUTHEAST ALASKA... BUT A FRONT FROM THE
NORTHERN LOW WILL BRING UP TO ABOUT HALF AN INCH OF RAIN TO PORTIONS
OF THE NORTHWEST MAINLAND.  SHOWERS SHOULD DECREASE OVER MOST OF THE
INTERIOR AND SOUTHERN MAINLAND.

...PRECIPITATION...

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
FYRA2    FORT YUKON RAWS      PC RG :  1.28
JTMA2    MT ROBERTS TRAM      PC RZ :  1.10
RBTA2    RABBIT CREEK RAWS    PC RG :  1.00
CHLA2    LITTLE CHENA RIVER   PC RG :  0.91
SNIA2    SNIPE LAKE           PC RG :  0.88
WSLA2    WASILLA RAWS         PC RP :  0.86
KKEA2    KAKE RAWS            PC RG :  0.86
ZMBA2    ZAREMBO ISLAND SOUTH PC RG :  0.73
PASI     SITKA                PP RZ :  0.62
SWNA2    SWANSON RIVER RAWS   PC RG :  0.58
FCCA2    FISH CREEK           PC RG :  0.54
THOA2    THORNE BAY RAWS      PC RG :  0.50
CZOA2    CHISTOCHINA RAWS     PC RG :  0.50
CFCA2    COFFMAN COVE         PP RZ :  0.50

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
ABOVE NORMAL TEMPERATURES FOR THE THE INTERIOR AND SOUTHERN
MAINLAND AND FOR SOUTHEAST ALASKA.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
BELOW NORMAL PRECIPITATION FOR MOST OF THE STATE.  THE EXCEPTIONS
ARE A SMALL PORTION OF THE NORTHERN COAST AND PART OF THE
NORTHEASTERN MAINLAND.

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
$$

ACL


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