Ice Forecast
Issued by NWS Anchorage, AK

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6
208
FZAK80 PAFC 172356
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
255 PM AKST FRIDAY 17 NOVEMBER 2017

FORECAST VALID THROUGH...WEDNESDAY 22 NOVEMBER 2017

ANALYSIS CONFIDENCE...MODERATE TO HIGH

SYNOPSIS...HIGH PRESSURE WILL REMAIN OVER THE BEAUFORT SEA THROUGH
SATURDAY...THEN A LOW WILL MOVE WESTWARD ACROSS THE BEAUFORT SEA AS
A SERIES OF LOWS MOVE NORTHWARD THROUGH THE BERING SEA THROUGH
WEDNESDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-

PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-

ICE COVERED.

-BEAUFORT SEA-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-

THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM NEAR POINT BARROW
TO 71.5N 152.9W TO 72N 152W TO 72.3N 156W AND CONTINUES WESTWARD
INTO THE CHUKCHI SEA. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR THE BEAUFORT SEA...GENERALLY EASTERLY
WINDS WILL PERSIST THROUGH WEDNESDAY. SEA ICE WILL CONTINUE TO FILL
IN THE BEAUFORT SEA THROUGH WEDNESDAY.

-CHUKCHI SEA-
PKZ215-KOTZEBUE SOUND-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-

THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM APPROXIMATELY 50
NM NORTH OF POINT BARROW TO 75N 169.7W TO 73.5N 176.3W AND CONTINUES
IN RUSSIAN WATERS. THERE IS ALSO SEA ICE ALONG THE WEST COAST OF
ALASKA FROM 69.1N 163.7W TO POINT BARROW AS WELL AS WITHIN KOTZEBUE
SOUND.

FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...WINDS WILL
GENERALLY BE MODERATE EASTERLY ALONG AND NEAR THE ICE EDGE THROUGH
WEDNESDAY. THE MAIN ICE EDGE IS EXPECTED TO RETREAT 15 TO 30 NM
NORTHWESTWARD THROUGH WEDNESDAY. SEA ICE ALONG THE CHUKCHI SEA COAST
AND WITHIN KOTZEBUE SOUND MAY EXPAND WESTWARD UP TO 20NM THROUGH
WEDNESDAY.

-BERING SEA-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-

NEW AND YOUNG SEA ICE HAS BEEN OBSERVED WITHIN THE SHALLOW AND
PROTECTED AREAS FROM THE BERING STRAIT SOUTH TO THE KUSKOKWIM RIVER
DELTA.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...VARIABLE WINDS CAN
BE EXPECTED THROUGH WEDNESDAY AS A SERIES OF LOWS MOVE THROUGH THE
BERING SEA. VERY LITTLE NEW ICE GROWTH IS EXPECTED THROUGH
WEDNESDAY.

-COOK INLET-
PKZ130-WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
PKZ139-COOK INLET KALGIN ISLAND TO PT. BEDE-
PKZ140-COOK INLET NORTH OF KALGIN ISLAND-

ANALYSIS CONFIDENCE...HIGH

NEW AND YOUNG SEA ICE HAS BEEN OBSERVED NORTH OF A LINE FROM THE
SUSITNA RIVER DELTA TO POINT POSSESSION...AS WELL AS WITHIN
PROTECTED AREAS ON THE WEST SIDE OF COOK INLET TO KAMISHAK
BAY.

FORECAST THROUGH WEDNESDAY FOR COOK INLET...COLDER TEMPERATURES ARE
EXPECTED TO PERSIST THROUGH WEDNESDAY. THEREFORE SEA ICE IS EXPECTED
TO CONTINUE TO FORM AND THICKEN THROUGH WEDNESDAY.

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

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.