Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 182238
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HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI APR 18 2014

...FLOOD POTENTIAL...

FLOOD POTENTIAL IS CURRENTLY LOW FOR THE STATE.

...HYDROMETEOROLOGICAL DISCUSSION...

FOR THE WEEKEND AND INTO EARLY NEXT WEEK THE UPPER LEVEL PATTERN HAS
A LOW IN THE GULF/NORTHEAST PACIFIC... WITH MULTIPLE SHORTWAVES...
AND A RIDGE BUILDING OVER THE MAINLAND FROM CANADA.  THIS WILL KEEP
PERIODS OF PRECIPITATION LIKELY ALONG THE SOUTHWEST COAST AND OVER
THE GULF COASTAL REGION AND SOUTHEAST ALASKA.

...SNOWPACK...

OVER THE PAST 7 DAYS THE SNOWPACK HAS DECREASED STATEWIDE... WITH
THE LARGEST DECREASES REPORTED FROM PORTIONS OF THE EASTERN INTERIOR.

...ICE THICKNESS...

ICE THICKNESSES REPORTED AROUND APRIL 1 RANGED FROM 13 INCHES ON THE
TANANA RIVER IN FAIRBANKS TO 58 INCHES ON THE COLVILLE DELTA.

ICE THICKNESSES OF 13 TO 38 INCHES WERE REPORTED IN TANANA BASIN.

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE
NORMAL TEMPERATURES OVER THE WESTERN AND NORTHERN MAINLAND.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES OF BELOW
NORMAL PRECIPITATION OVER THE WESTERN AND CENTRAL INTERIOR AND OVER
THE NORTHWEST MAINLAND... AND INCREASED CHANCES OF ABOVE NORMAL
PRECIPITATION OVER SOUTHERN AND CENTRAL SOUTHEAST ALASKA.

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

THE HYDROMET DISCUSSION WILL BE ISSUED EVERY FRIDAY UNTIL BREAK UP
BEGINS IN THE SPRING.  A GRAPHICAL VERSION OF THE HYDROMET
DISCUSSION IS AVAILABLE AT
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP

$$

ACL



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