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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT SAT OCT 25 2014 

...FLOOD POTENTIAL... 

FLOOD POTENTIAL IS CURRENTLY LOW FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION... 

THE UPPER LEVEL PATTERN THIS MORNING HAS A SIBERIAN LOW TO THE WEST 
OF THE SEWARD PENINSULA... A TROUGH WELL SOUTH OF THE AKPEN... AND 
THE WEAKENING TROUGH CROSSING SOUTHEAST ALASKA INTO CANADA.  SMALL 
DISTURBANCES ARE CROSSING THE MAINLAND... BRINGING PRECIPITATION TO 
SOUTHCENTRAL AND SOUTHWEST ALASKA THIS THIS MORNING.  FORMER 
HURRICANE ANA IS MOVING NORTHEASTWARD ACROSS THE NORTH PACIFIC AND 
WILL EVENTUALLY MERGE WITH THE TROUGH CURRENTLY WELL SOUTH OF THE 
AKPEN.  THE COMBINED SYSTEM WILL MOVE ASHORE OVER SOUTHERN SOUTHEAST 
ALASKA... OR EVEN FURTHER SOUTH... LATE MONDAY INTO TUESDAY.  A 
RIDGE WILL BUILD INTO THE SOUTHCENTRAL AND SOUTHEAST MAINLAND 
BETWEEN THAT TROUGH AND THE TROUGH ASSOCIATED WITH THE SIBERIAN LOW 
SUNDAY INTO MONDAY.

FREEZING LEVELS WERE AT THE SURFACE OVER MOST OF THE MAINLAND THIS 
MORNING... RISING TO 1800-4400 FT FROM KODIAK TO YAKUTAT TO ANNETTE. 
FREEZING LEVELS ARE NOT EXPECTED TO 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 
======== ====                 == ==   ===== 
BGLA2    BERING GLACIER RAWS  PC RG :  1.01
VDEA2    VALDEZ HANDAR        PC RP :  0.38
PAKT     KETCHIKAN            PP RZ :  0.28
PAVD     VALDEZ               PP RZ :  0.25
HADA2    HAIDA RAWS           PC RG :  0.24
ILRA2    ILIAMNA RIVER        PC RG :  0.22
SHLA2    SHELTER COVE RAWS    PC RG :  0.21
PAGK     GULKANA              PP RZ :  0.21

...LONG RANGE... 

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

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

National Weather Service
Alaska-Pacific River Forecast Center
6930 Sand Lake Road
Anchorage, Ak 99502
907-266-5160

Page Modified: 29 Dec 2005 18:00 UTC
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