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AGAK78 PACR 151503
ACRHMDACR 

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT TUESDAY MAY 15 2012

...FLOOD POTENTIAL...

PLEASE REFER TO THE FLOOD PRODUCTS PAGE FOR THE MOST CURRENT
INFORMATION AND STATEMENTS:
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/FCST.PHP?PRODUCT=FLOOD

THE FLOOD POTENTIAL IS CURRENTLY LOW FOR OTHER AREAS OF ALASKA 
WHERE ICE JAM FLOODING HAS HISTORICALLY NOT BEEN AN ISSUE.  

...HYDROMETEOROLOGICAL DISCUSSION...

HIGH PRESSURE HAS MOVED OVER THE MAINLAND WHERE IT WILL REMAIN
INTO THE WEEKEND. CONDITIONS WILL GENERALLY BE WARMER AND DRIER
UNTIL AT LEAST THIS WEEKEND. HOWEVER THE WEST COAST MAY STILL
SEE SOME LIGHT PRECIPITATION AT TIMES AS A COUPLE OF FRONTS
BRUSH THE AREA WEDNESDAY AND AGAIN THURSDAY.

SELECTED 24 HOUR PRECIPITATION TOTALS ENDING AT 4AM THIS MORNING.
LOCATION NAME                 PE TS    24 HR    
======== ====                 == ==    =====
ALEA2    ALSEK RIVER AT DRY B PC RG :   1.10
PAYA     YAKUTAT              PP RZ :   1.04
MDBA2    COPPER RIVER NR MILL PC RG :   0.91
SPPA2    SNETTISHAM POWER PLA PP RZ :   0.73
PECA2    PELICAN              PP RZ :   0.66
GOAA2    MENDENHALL LOOP ROAD PP RZ :   0.62
LLKA2    LONG LAKE SNOTEL     PC RM :   0.60
HKIA2    HAENKE ISLAND        PC RZ :   0.54
GRAA2    GRANITE CREEK RAWS   PC RG :   0.53



...FORECAST PRECIPITATION...
THE HEAVIEST PRECIPITATION TUESDAY MAY LIKELY BE ASSOCIATED WITH
ISOLATED THUNDERSTORMS ALONG THE EASTERN INTERIOR BORDER. 

...QUANTITATIVE PRECIPITATION FORECASTS (QPF) GRIDS...
QPF GRIDS WERE CREATED USING A BLEND OF THE WRF AND NAM FOR THE
FIRST 18 HOURS. A BLEND OF NAM AND GFS THROUGH 72 HOURS AND
GFS THROUGH DAY 7.

...FREEZING LEVELS...
FREEZING LEVELS MONDAY MORNING SLOPED FROM NEAR THE SURFACE ALONG 
THE WEST COAST TO AROUND 5000 FEET ACROSS THE EASTERN INTERIOR.

TEMPERATURES ACROSS THE Y-K DELTA SHOULD RISE TO NEAR NORMAL
AFTER THE MIDDLE OF THIS WEEK. LONG RANGE OUTLOOK FOR 6-10 DAYS 
AND THE 8-14 DAYS NOW SHOW AN INCREASED CHANCE FOR COOLER THAN 
NORMAL TEMPERATURES ACROSS THE WESTERN THIRD OF THE STATE
AND WARMER THAN NORMAL ACROSS THE EASTERN INTERIOR.  

....................................................................
THE HYDROMET DISCUSSION WILL BE ISSUED DAILY THROUGH THE SUMMER. A
GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP  

$$
JEP

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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