Hydro-Met Discussion - APRFC


AGAK78 PACR 052309
HMDACR

HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
300 PM AKDT FRI DEC 5 2014 

...FLOOD POTENTIAL... 

FLOOD POTENTIAL IS LOW FOR THE STATE OF ALASKA.

...HYDROMETEOROLOGICAL DISCUSSION...

COOLER TEMPERATURES OVER THE KUSKOKWIM BASIN OVER THE PAST WEEK HAVE 
ALLOWED FREEZE-UP TO RESUME ON THE RIVER.

FOR THIS WEEKEND... UPPER LEVEL LOW PRESSURE SOUTH OF KODIAK ISLAND 
AND THE EASTERN ALEUTIANS WILL SEND SEVERAL WAVES INTO THE GULF... 
BRINGING PERIODS OF PRECIPITATION TO SOUTHEAST ALASKA AND THE GULF 
COASTAL REGION.

...SNOW DEPTH...

SNOW DEPTHS INCREASED OVER MOST OF THE MAINLAND THIS WEEK.  REPORTED 
SNOW DEPTHS IN THE TANANA BASIN ARE GENERALLY IN THE 10 TO 14 INCH 
RANGE... WHILE LOW ELEVATION SNOW DEPTHS IN SOUTHCENTRAL ALASKA 
RANGE BETWEEN 1 AND 10 INCHES.

...ICE THICKNESS...

ICE THICKNESS MEASURED AT THE START OF DECEMBER INCLUDED: BETWEEN 5 
TO 9 INCHES AROUND ANCHORAGE... 8 INCHES AT BETHEL... BETWEEN 14 AND 
21 INCHES IN THE MIDDLE TANANA BASIN... 20 INCHES AT COLVILLE 
VILLAGE... AND 30 INCHES AT BETTLES.

...LONG RANGE...

THE 6 TO 10 DAY TEMPERATURE OUTLOOK HAS INCREASED CHANCES OF ABOVE 
NORMAL TEMPERATURES FROM SOUTHCENTRAL THROUGH SOUTHEAST ALASKA... 
AND INCREASED CHANCES OF BELOW NORMAL TEMPERATURES FROM SOUTHWEST 
ALASKA NORTH THROUGH THE CENTRAL AND WESTERN NORTH SLOPE.

THE 6 TO 10 DAY PRECIPITATION OUTLOOK HAS INCREASED CHANCES FOR 
BELOW NORMAL PRECIPITATION FROM THE YUKON DELTA NORTH AND EAST 
THROUGH THE CENTRAL AND WESTERN NORTH SLOPE. 

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

THIS HYDROMET DISCUSSION WILL BE ISSUED EVERY FRIDAY UNTIL BREAKUP 
BEGINS IN THE SPRING.
 
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