540  
AGAK78 PACR 212239  
HMDACR  
 
HYDROMETEOROLOGICAL DISCUSSION  
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK  
300 PM AKDT FRI APR 21 2017  
   
..FLOOD POTENTIAL
 
 
 
THE FLOOD POTENTIAL IS LOW FOR THE ENTIRE STATE THROUGH THE WEEKEND.  
   
..HYDROMETEOROLOGICAL DISCUSSION.
 
 
 
THE UPPER LEVEL PATTERN TODAY HAS A RIDGE FROM THE CONUS WEST COAST  
THROUGH SOUTHEAST ALASKA AND OVER MOST OF THE MAINLAND... WITH LOWS  
IN THE CENTRAL BERING TO SOUTH OF THE EASTERN ALEUTIANS AND SOUTH OF  
THE GULF. THROUGH THE WEEKEND THE LOW SOUTH OF THE GULF WILL ROTATE  
AND OPEN INTO A TROUGH CONNECTED TO THE LOW SOUTH OF THE ALEUTIANS.  
THIS WILL BRING RAIN TO KODIAK ISLAND AND THE AKPEN... WITH LIGHT  
RAIN/SHOWERS SPREADING INTO THE SOUTHWEST MAINLAND.  
   
..SNOW
 
 
REPORTED LOW-MID ELEVATION SNOW DEPTHS ARE GENERALLY LESS THAN 48  
INCHES ACROSS THE MAINLAND. OVER THE LAST 7 DAYS SNOW DEPTHS HAVE  
DECREASED STATE WIDE... WITH SEVERAL LOW ELEVATION STATIONS IN THE  
SOUTHWEST MAINLAND AND IN SOUTHEAST ALASKA REPORTING NO OR PATCHY  
SNOW COVER.  
   
..ICE
 
 
ICE THICKNESS MEASUREMENTS FOR THE START OF APRIL INCLUDE:  
28 TO 30 INCHES IN THE ANCHORAGE AREA  
34 INCHES IN THE LOWER MATSU VALLEY  
37 INCHES NEAR TALKEETNA  
19 INCHES AT MCCARTHY ON THE KENNICOTT RIVER  
53 INCHES AT BETHEL ON THE KUSKOKWIM RIVER  
40 TO 43 INCHES IN THE LOWER KUSKOKWIM RIVER  
25 INCHES AT MCGRATH ON THE KUSKOKWIM RIVER  
40 INCHES AT LAKE MINCHUMINA  
51 INCHES AT GALENA ON THE YUKON RIVER  
36 INCHES AT STEVENS VILLAGE ON THE YUKON RIVER  
66 INCHES AT EAGLE ON THE YUKON RIVER  
40 INCHES ON THE FORTYMILE RIVER AT THE TAYLOR HIGHWAY  
22 TO 39 INCHES IN THE FAIRBANKS AREA  
42 INCHES AT BETTLES  
50 INCHES AT COLVILLE VILLAGE ON THE COLVILLE RIVER.  
   
..LONG RANGE
 
 
THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED PROBABILITIES OF  
BELOW NORMAL TEMPERATURES OVER THE CENTRAL AND EASTERN NORTH SLOPE  
AND BROOKS RANGE... OVER THE EASTERN INTERIOR... AND OVER THE  
NORTHERN PORTIONS OF SOUTHCENTRAL AND THE COPPER RIVER BASIN. THERE  
ARE INCREASED PROBABILITIES OF ABOVE NORMAL TEMPERATURES OVER MUCH  
OF THE SOUTHWEST MAINLAND AND OVER THE AKPEN.  
 
THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED PROBABILITIES OF  
BELOW NORMAL PRECIPITATION OVER AND NORTH OF THE BROOKS RANGE. THERE  
ARE INCREASED PROBABILITIES OF ABOVE NORMAL PRECIPITATION OVER THE  
SOUTHWEST MAINLAND AND MOST OF THE SOUTHCENTRAL MAINLAND... AS WELL  
AS NEAR THE ALCAN BORDER IN THE SOUTHEAST MAINLAND.  
 
PLEASE REFER TO THE CLIMATE PREDICTION CENTER HOME PAGE FOR FURTHER  
INFORMATION.  
   
................................................................
 
 
THIS TEXT PRODUCT WILL BE ISSUED DAILY BEGINNING ON WEDNESDAY APRIL  
26. THIS TEXT PRODUCT WILL THEN BE ISSUED DAILY UNTIL FREEZEUP IN  
THE FALL. A GRAPHICAL VERSION OF THE HYDROMET DISCUSSION IS  
AVAILABLE AT HTTP://WWW.WEATHER.GOV/APRFC/GRAPHICALHMD  
 

 
ACL  
 
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