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000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM

$$



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM

$$


000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM

$$



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM



000
FZAK80 PAFC 222101
ICEAFC

SEA ICE ADVISORY FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
105 PM AKDT FRIDAY 22 MAY 2015

FORECAST VALID...WEDNESDAY 27 MAY 2015

ANALYSIS CONFIDENCE...MODERATE

SYNOPSIS...LOW PRESSURE IS EXPECTED TO PERSIST OVER MUCH OF THE
WESTERN AND CENTRAL BERING SEA THROUGH MONDAY... WHILE HIGH PRESSURE
IS EXPECTED TO PERSIST ACROSS MUCH OF THE BEAUFORT SEA AND CHUKCHI
SEA THROUGH MONDAY.

-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-
PKZ180-KUSKOKWIM DELTA AND ETOLIN STRAIT-
PKZ181-NORTH AND WEST OF NUNIVAK ISLAND-
PKZ185-SAINT MATTHEW ISLAND WATERS-

THE MAIN ICE EDGE LIES FROM NEAR HOOPER BAY TO THE ENTRANCE OF
NORTON SOUND TO 63.7N 166.8W TO 64.4N 168.3W TO 62.1N 167.7W TO
62.1N 166.2W TO 61.1N 167.3W TO 62.8N 171.8W TO 62.8N 169.5W TO
65.6N 168.9W TO THE RUSSIAN COAST NEAR 64.2N 173.1W.

ISOLATED ICE FLOES ALSO REMAIN TO THE NORTHWEST AND WEST OF SAINT
MATTHEW ISLAND.

FORECAST THROUGH MONDAY FOR THE BERING SEA... SOUTHEASTLERY FLOW IS
EXPECTED TO PERSIST OVER MUCH OF THE BERING SEA ICE EDGE THROUGH
MONDAY WITH PERIODS OF MODERATE TO STRONG FLOW. REMAINING ISOLATED
AREAS OF SEA ICE NEAR SAINT MATTHEW ISLAND AND OFFSHORE BETWEEN
NUNIVAK ISLAND AND SAINT LAWRENCE ISLAND ARE EXPECTED TO DECREASE
DRAMATICALLY IN CONCENTRATION THROUGH THE WEEKEND WITH ONLY ISOLATED
OPEN WATER AREAS AND CONCENTRATIONS UP TO 3 TENTHS REMAINING BY
MONDAY. SEA ICE REMAINING WITHIN NORTON SOUND AND IN THE NORTHERN
BERING SEA IS EXPECTED TO SHIFT TO THE WEST AND SPREAD APART THROUGH
THE WEEKEND DECREASING IN CONCENTRATION AS WELL.

HEIM




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