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FZAK80 PAFC 042355
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS 
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
255 PM AKST WEDNESDAY 4 MARCH 2015 

FORECAST VALID...MONDAY 9 MARCH 2015

ANALYSIS CONFIDENCE...MODERATE TO HIGH
                      
SYNOPSIS...A SERIES OF LOWS WILL MOVE EASTWARD ACROSS THE BERING 
SEA...AS WELL AS THE CHUKCHI AND BEAUFORT SEAS THROUGH SATURDAY. 
HIGH PRESSURE WILL THEN BUILD INTO THE BERING SEA THROUGH 
MONDAY...WHILE A LOW MOVES EASTWARD ACROSS THE SOUTHERN BERING SEA. 
MUCH COLDER AIR WILL MOVE IN FROM THE NORTHWEST WITH THE HIGH 
PRESSURE. 
 
-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN- 
PKZ235-POINT FRANKLIN TO CAPE HALKETT- 
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-

ICE COVERED.

-BERING SEA-

PKZ215-KOTZEBUE SOUND-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-
PKZ160-BRISTOL BAY-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM THE ALASKA COAST NEAR CAPE NEWENHAM TO  
59.5N 162.1W TO 59.1N 170.3W TO 61.3N 173.7W TO 62.1N 178.2E AND 
CONTINUES ALONG THE RUSSIAN COAST. LOW CONCENTRATIONS OF ICE ARE 
ALSO PRESENT IN SHALLOW BAYS WITHIN BRISTOL BAY. THE ICE EDGE IS 
MAINLY OPEN WATER TO 3 TENTHS NEW AND YOUNG SEA ICE.

FORECAST THROUGH MONDAY FOR THE BERING SEA...WINDS WILL MAINLY BE 
OUT OF THE SOUTH AND WEST ALONG THE ICE EDGE THROUGH MONDAY. THE 
OVERALL ICE EDGE IS EXPECTED TO MOVE TO THE EAST-NORTHEAST 25 TO 40 
NM BY MONDAY.

-COOK INLET-
PKZ140-COOK INLET NORTH OF KAMISHAK BAY AND ENGLISH BAY-

COOK INLET ANALYSIS CONFIDENCE...HIGH

SYNOPSIS FOR COOK INLET...LOW PRESSURE WILL REMAIN OVER THE GULF OF 
ALASKA THROUGH SATURDAY...THEN LOW PRESSURE WILL QUICKLY MOVE 
EASTWARD ACROSS INTERIOR ALASKA ON SUNDAY. HIGH PRESSURE WILL BEGIN 
TO BUILD INTO THE REGION ON MONDAY...BRINGING MUCH COLDER AIR WITH 
IT. 

THE MAIN ICE EDGE LIES FROM THE COAST NEAR 60.5N 151.3W TO 60.7N 
151.4W TO 60.3N 151.8W TO 60.3N 152.4W. THE ICE EDGE IS OPEN WATER. 
LOW CONCENTRATIONS OF ICE ARE ALSO PRESENT IN SHALLOW BAYS ALONG THE 
WEST COAST OF LOWER COOK INLET. 

FORECAST FOR COOK INLET THROUGH MONDAY...DAYTIME TEMPERATURES ARE 
EXPECTED TO REMAIN ABOVE FREEZING THROUGH SATURDAY WITH OVERNIGHT 
LOWS IN THE 20S. TEMPERATURES WILL THEN BEGIN TO FALL THROUGH THE 
REST OF THE WEEKEND AND INTO NEXT WEEK. THE OVERALL ICE PACK WILL 
CONTINUE TO DECREASE IN THICKNESS AND CONCENTRATION THROUGH 
SATURDAY...BUT WILL LIKELY BEGIN TO INCREASE AGAIN ON SUNDAY AND 
MONDAY. ADDITIONAL STRIPS OF ICE MAY BE CAUGHT IN THE RIP NEAR THE 
WEST FORELAND DAILY WITH THE TIDE CHANGE. 

PLEASE NOTE...COOK INLET SEA ICE CHANGES SIGNIFICANTLY WITH THE 
TIDES.


Alaska Region Headquarters
222 West 7th Avenue #23
Anchorage, AK 99513-7575
Voice: 1-907-271-5088
Fax: 1-907-271-3711
Recorded Forecast: 1-800-472-0391
Webmaster Email: ARH Webauthors
Page Modified: 03 Feb 2008 18:00 UTC
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