Ice Forecast
Issued by NWS Anchorage, AK

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FZAK80 PAFC 160015
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
315 PM AKST WEDNESDAY 15 NOVEMBER 2017

FORECAST VALID THROUGH...MONDAY 19 NOVEMBER 2017

ANALYSIS CONFIDENCE...HIGH

SYNOPSIS...HIGH PRESSURE WILL REMAIN OVER THE BEAUFORT SEA THROUGH
MONDAY. LOW PRESSURE WILL REMAIN IN THE SOUTHERN CHUKCHI SEA ON
WEDNESDAY AND DISSIPATE THROUGH THE WEEKEND.

-ARCTIC OCEAN-
ICE COVERED.

-BEAUFORT SEA-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-

THE MAIN ICE EDGE IN THE BEAUFORT SEA EXTENDS FROM NEAR POINT BARROW
TO 71.5N 156.2W TO 71.1N 151.1W TO 72.1N 151.5W AND CONTINUES
WESTWARD INTO THE CHUKCHI SEA. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH MONDAY BEAUFORT SEA...LIGHT NORTHEASTERLY TO
EASTERLY WINDS WILL PERSIST THROUGH MONDAY. THE ICE EDGE WILL DRIFT
10 TO 20 NM TO THE EAST THROUGH MONDAY AND CONTINUE TO FILL IN WITH
NEW SEA ICE.

-CHUKCHI SEA-
PKZ215-KOTZEBUE SOUND-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-

THE MAIN ICE EDGE IN THE CHUKCHI SEA EXTENDS FROM APPROXIMATELY 55
NM NORTH OF POINT BARROW TO 75.4N 170.2W TO 73.4N 174.3W TO 73.4N
178.7W TO 71.7N 175.6W TO 70.7N 176.9W AND CONTINUES WESTWARD IN
RUSSIAN WATERS.

FORECAST THROUGH MONDAY FOR THE CHUKCHI SEA...SOUTHEASTERLY TO
EASTERLY WINDS WILL CONTINUE THROUGH SATURDAY. THE MAIN ICE EDGE IS
EXPECTED TO RETREAT 10 TO 20 NM NORTHWESTWARD THROUGH MONDAY. SEA
ICE ALONG THE CHUKCHI SEA COAST WILL LIKELY GROW AGAIN WITH LIGHTER
WINDS THROUGH THE WEEKEND.

-BERING SEA-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-

NEW AND YOUNG SEA ICE HAS BEEN OBSERVED WITHIN THE SHALLOW AND
PROTECTED AREAS OF NORTON SOUND SOUTH TO THE YUKON RIVER DELTA.

FORECAST THROUGH MONDAY FOR THE BERING SEA...WE WILL CONTINUE TO SEE
NEW SEA ICE GROWTH ALONG THE COAST FROM KUSKOKWIM RIVER DELTA TO THE
BERING STRAIT DURING TIMES OF BELOW FREEZING ATMOSPHERIC
TEMPERATURES...AND MELTING WITH WARMER TEMPERATURES.

-COOK INLET-
PKZ140-COOK INLET NORTH OF KALGIN ISLAND-

ANALYSIS CONFIDENCE...HIGH

NEW AND YOUNG SEA ICE HAS BEEN OBSERVED IN UPPER KNIK ARM NEAR THE
KNIK RIVER BRIDGE DOWN TO THE PORT...AS WELL AS NEAR THE MOUTH OF
THE SUSITNA RIVER AND IN PROTECTED AREAS SOUTHWARD THROUGH KAMISHAK
GAP

FORECAST THROUGH MONDAY FOR COOK INLET...COLDER TEMPERATURES THROUGH
THE WEEKEND WILL ALLOW ADDITIONAL SEA ICE TO FORM WITHIN KNIK ARM
AND THE SUSITNA RIVER DELTA AND ALONG PROTECTED AREAS OF THE WESTERN
COASTLINE.

$$


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