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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
3 PM AKDT WED MAY 27 2015 

...FLOOD POTENTIAL...

THE SOUTHWEST PORTION OF THE STATE HAS EXPERIENCED PERSISTENT RAIN 
OVER THE PAST WEEK... WITH SOME AREAS RECEIVING AN ESTIMATED TOTAL 
OF 3 TO 4 INCHES.  THIS HAS RESULTED IN HIGH WATER LEVELS ON AREA 
RIVERS DRAINING THE WOOD RIVER MOUNTAINS OF SOUTHWEST ALASKA... SUCH 
AS THE NUYAKUK... NUSHAGAGK... AND WOOD RIVER. 

...HYDROMETEOROLOGICAL DISCUSSION... 

THE UPPER LEVEL PATTERN THIS MORNING HAS A LARGE RIDGE CENTERED OVER 
THE ALCAN... WITH A SMALL LOW CURRENTLY OVER NORTHERN SOUTHEAST 
UNDERCUTTING THE RIDGE.  THERE IS ALSO A LARGE LOW OVER THE BERING 
WITH A TROUGH CONNECTING IT TO DEVELOPING LOW IN THE NORTH PACIFIC.  
OVER THE NEXT TWO DAYS THE LOW UNDERCUTTING THE RIDGE WILL MOVE 
SOUTHEASTWARD.  THE BERING LOW WILL WEAKEN AND MOVE TO THE 
NORTHWEST... WITH A PORTION OF THE ENERGY BREAKING OFF AND MOVING TO 
THE BROOKS RANGE AND THEN EASTWARD.  THIS WAVE WILL BRING MODERATE 
TO HEAVY RAIN TO PORTIONS OF THE BROOKS RANGE THURSDAY INTO FRIDAY.  
WHILE THIS HAPPENS THE NORTH PACIFIC LOW WILL STRENGTHEN AND MOVE 
INTO THE BERING.

...PRECIPITATION...

PRECIPITATION TOTALS OVER THE 24 HOURS ENDING AT 4 AM TODAY:
LOCATION NAME                 PE TS   24 HR 
======== ====                 == ==   ===== 
PACD     COLD BAY             PP RZ :  0.58
TOKA2    TOK                  PC RP :  0.50
TKFA2    TOK RAWS             PC RG :  0.43
CSNA2    CHISANA RAWS         PC RG :  0.35
BOXA2    BOX RIVER RAWS       PC RG :  0.34
GBDA2    GOODPASTER RIVER     PC RG :  0.33
PAVC     KING COVE            PP RZ :  0.28
PAOR     NORTHWAY AIRPORT     PP RZ :  0.26

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE 
NORMAL TEMPERATURES OVER MOST OF THE SOUTHERN AND WESTERN MAINLAND 
AND OVER SOUTHEAST ALASKA.  THERE ARE INCREASED CHANCES OF BELOW 
NORMAL TEMPERATURES OVER THE FAR NORTHEAST MAINLAND.

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

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

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

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