Hydrometeorological Discussion
Issued by NWS Alaska-Pacific RFC

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AGAK78 PACR 242110
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
130 PM AKDT FRI MAR 24 2017

...FLOOD POTENTIAL...

THE FLOOD POTENTIAL IS LOW FOR THE ENTIRE STATE THROUGH THE WEEKEND.

...HYDROMETEOROLOGICAL DISCUSSION....

THE UPPER LEVEL PATTERN OF A RIDGE OVER THE BERING WITH A LOW TO THE
WEST AND A TROUGH TO EAST WILL BEGIN TO SLOWLY MODIFY BY SUNDAY AS
SHORTWAVES BEGIN TO UNDERCUT THE RIDGE.  THIS SHOULD LEAD TO THE
DEVELOPMENT OF A MORE ACTIVE PATTERN BY MID MIDWEEK... WITH WARMING
OVER MUCH OF SOUTHERN AND SOUTHEAST ALASKA AS WELL AS INCREASED
CHANCES FOR PRECIPITATION.

...SNOW...

REPORTED LOW-MID ELEVATION SNOW DEPTHS ARE GENERALLY LESS THAN 65
INCHES ACROSS THE MAINLAND.  OVER THE LAST 7 DAYS SNOW DEPTHS HAVE
NOT CHANGED MUCH OVER MOST OF THE MAINLAND... SNOW DEPTHS HAVE
INCREASED BY SEVERAL INCHES IN THE WESTERN PRINCE WILLIAM
SOUND/NORTHEASTERN KENAI PENINSULA REGION... AND SNOW DEPTHS HAVE
GENERALLY DECREASED OVER SOUTHEAST ALASKA.

...ICE...

ICE THICKNESS MEASUREMENTS FOR THE START OF MARCH INCLUDE: 26 INCHES
IN ANCHORAGE... 31 INCHES IN THE LOWER MATSU VALLEY... 44 INCHES AT
BETHEL... 38 TO 40 INCHES IN THE MIDDLE KUSKOKWIM RIVER... 48 INCHES
AT GALENA AND AT EAGLE... 9 TO 36 INCHES IN THE FAIRBANKS AREA...
AND 44 INCHES AT COLVILLE VILLAGE.

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF
BELOW NORMAL TEMPERATURES OVER THE WESTERN MAINLAND FROM THE YUKON
DELTA NORTH TO THE POINT BARROW REGION.  THERE ARE INCREASED
PROBABILITIES OF ABOVE NORMAL TEMPERATURES OVER MOST OF THE REST OF
THE MAINLAND AND OVER SOUTHEAST ALASKA.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF
BELOW NORMAL PRECIPITATION OVER MOST OF THE SEWARD PENINSULA... OVER
THE WESTERN BROOKS RANGE... AND OVER MOST OF THE NORTH SLOPE.  THERE
ARE INCREASED PROBABILITIES OF ABOVE NORMAL PRECIPITATION OVER MOST
OF THE REST OF THE MAINLAND AND OVER SOUTHEAST ALASKA.

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

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

THIS TEXT PRODUCT WILL BE ISSUED WEEKLY ON FRIDAY UNTIL BREAKUP IN
THE SPRING. A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS
AVAILABLE AT HTTP://WWW.WEATHER.GOV/APRFC/GRAPHICALHMD

$$
ACL



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