Ice Forecast
Issued by NWS Anchorage, AK

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398
FZAK80 PAFC 140024
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
325 PM AKST FRIDAY 13 JANUARY 2017

FORECAST VALID...WEDNESDAY 18 JANUARY 2017

ANALYSIS CONFIDENCE...HIGH TO MODERATE

SYNOPSIS...HIGH PRESSURE WILL PERSIST OVER EASTERN SIBERIA AS A
SERIES OF LOWS TRACK SOUTH OF THE ALEUTIAN ISLAND CHAIN... THROUGH
THE NORTHERN GULF OF ALASKA TO MAINLAND ALASKA THROUGH WEDNESDAY.

-ARCTIC OCEAN-
-BEAUFORT SEA-
-CHUKCHI SEA-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
PKZ245-FLAXMAN ISLAND TO DEMARCATION POINT-
PKZ240-CAPE HALKETT TO FLAXMAN ISLAND-
PKZ235-POINT FRANKLIN TO CAPE HALKETT-
PKZ230-CAPE BEAUFORT TO POINT FRANKLIN-

ICE COVERED.

-CHUKCHI SEA-
-BERING SEA-

PKZ160-BRISTOL BAY-
PKZ165-PORT HEIDEN TO CAPE SARICHEF-
PKZ180-KUSKOKWIM DELTA TO ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-
PKZ200-NORTON SOUND-
PKZ210-DALL POINT TO WALES-
PKZ215-KOTZEBUE SOUND-
PKZ220-WALES TO CAPE THOMPSON-
PKZ225-CAPE THOMPSON TO CAPE BEAUFORT-
PKZ500-WESTERN U.S. ARCTIC OFFSHORE-

FORECAST THROUGH WEDNESDAY FOR THE CHUKCHI SEA...PERSISTENT
NORTHERLY WINDS ARE EXPECTED THROUGH WEDNESDAY. THE SOUTHERN CHUKCHI
SEA THROUGH THE BERING STRAIT IS EXPECTED TO BE ICE COVERED BY
SUNDAY.

THE MAIN ICE EDGE IN THE BERING SEA EXTENDS FROM 57.2N 158.4W TO
59.5N 167.2W TO 61N 169.3W TO 63.7N 167.9W TO 65.3N 169.5W TO 63.8N
173.2W AND CONTINUES ALONG THE RUSSIAN COAST. THERE ARE ALSO AREAS
OF NEW SEA ICE AROUND SAINT LAWRENCE ISLAND AS WELL AS ALONG THE
BERING SEA SIDE OF THE ALASKA PENINSULA. THE ICE EDGE IS MAINLY OPEN
WATER.

FORECAST THROUGH WEDNESDAY FOR THE BERING SEA...NORTHERLY TO
NORTHEASTERLY WINDS ARE EXPECTED OVER MUCH OF THE BERING SEA THROUGH
WEDNESDAY... WITH THE EXCEPTION OF THE REGION FROM NUNIVAK ISLAND
OVER TO BRISTOL BAY WHERE WINDS ARE EXPECTED TO RANGE FROM
NORTHEASTERLY TO WESTERLY THROUGH WEDNESDAY. THE MAIN BERING SEA ICE
EDGE IS EXPECTED TO EXPAND TO THE SOUTHWEST 30 TO 45 NM THROUGH
WEDNESDAY... WITH THE EXCEPTION OF THE REGION FROM NUNIVAK ISLAND
OVER TO BRISTOL BAY WHERE THE ICE EDGE IS EXPECTED TO EXPAND TO THE
SOUTHWEST 15 TO 30 NM THROUGH WEDNESDAY.

-COOK INLET-
PKZ130-WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
PKZ139-COOK INLET KALGIN ISLAND TO POINT BEDE-
PKZ140-COOK INLET NORTH OF KALGIN ISLAND-
PKZ141-KACHEMAK BAY-

COOK INLET ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS FOR COOK INLET...A SERIES OF LOWS WILL MOVE NORTHEASTWARD
THROUGH THE COOK INLET REGION THROUGH WEDNESDAY.

THE MAIN ICE EDGE EXTENDS FROM NEAR 60.2N 151.4W TO 60.4N 151.5W TO
60.1N 152.0W TO 60.3N 152.1W AND CONTINUES DOWN ALONG THE WEST
COAST OF LOWER COOK INLET. THE ICE EDGE IS MAINLY OPEN WATER.

FORECAST THROUGH WEDNESDAY FOR COOK INLET...AIR TEMPERATURES ARE
FORECAST TO REMAIN WELL BELOW FREEZING THROUGH WEDNESDAY. SEA ICE
WILL CONTINUE TO GROW...AND THE ICE EDGE IS EXPECTED TO EXPAND
SOUTHWARD UP TO 15 NM THROUGH WEDNESDAY.

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

$$



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