Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 242254
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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI OCT 24 2014

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

THE SIBERIAN LOW HAS BECOME THE MAJOR FEATURE IN THE UPPER LEVEL
PATTERN THIS MORNING... AS THE TROUGH IN THE EASTERN GULF AND
NORTHEASTERN PACIFIC HAS WEAKENED.  OVER THE NEXT COUPLE OF DAYS
SHORTWAVES WILL BREAK OFF FROM THE SIBERIAN LOW AND MOVE INTO THE
WESTERN MAINLAND... BRINGING PERIODS OF PRECIPITATION WITH THEM.

FREEZING LEVELS WERE AT THE SURFACE OVER MOST OF THE MAINLAND THIS
MORNING... RISING TO 2500-4100 FT FROM KING SALMON ACROSS TO YAKUTAT
AND ANNETTE. FREEZING LEVELS ARE NOT EXPECTED TO CHANGE MUCH OVER
THE NEXT COUPLE OF DAYS.

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

LOCATION NAME                 PE TS   24 HR
======== ====                 == ==   =====
THOA2    THORNE BAY RAWS      PC RG :  0.66
SHLA2    SHELTER COVE RAWS    PC RG :  0.48
PAKT     KETCHIKAN            PP RZ :  0.25
PAVC     KING COVE            PP RZ :  0.22
ZMBA2    ZAREMBO ISLAND SOUTH PC RG :  0.20
SRYA2    SITUK RIVER          PC RG :  0.20
SOUA2    SOULE RIVER          PC RG :  0.20
PABE     BETHEL               PP RZ :  0.20

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE SEWARD PENINSULA... THE BROOKS RANGE...
AND THE NORTH SLOPE.  THERE ARE INCREASED CHANCES FOR BELOW NORMAL
TEMPERATURES OVER SOUTHEAST ALASKA... THE SOUTHEAST MAINLAND... AND
MUCH OF SOUTHCENTRAL ALASKA.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR
ABOVE NORMAL PRECIPITATION OVER MOST OF THE MAINLAND.  THERE ARE
INCREASED CHANCES FOR BELOW NORMAL PRECIPITATION OVER SOUTHEAST
ALASKA.

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

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

THIS HYDROMET DISCUSSION WILL BE ISSUED DAILY UNTIL FREEZE-UP BEGINS
IN THE FALL.

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

$$

ACL



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