577
FZAK80 PAFC 292229
ICEAFC
SEA ICE FORECAST FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE - ALASKA SEA ICE PROGRAM
230 PM AKDT MONDAY 29 JUNE 2026
FORECAST VALID…SATURDAY 4 JULY 2026
ANALYSIS CONFIDENCE…HIGH.
SYNOPSIS…LOW PRESSURE OVER THE HIGH ARCTIC MOVES OVER THE NORTHERN
CANADIAN ARCHEPELIGO THROUGH THE WEEK. HIGH PRESSURE BUILDS OVER THE
CHUKCHI SEA WHILE LOW PRESSURE SITS OVER THE MAINLAND.
-BEAUFORT SEA-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ510-EASTERN US ARCTIC OFFSHORE-
PKZ813-POINT FRANKLIN TO CAPE HALKETT OUT TO 15 NM-
PKZ814-CAPE HALKETT TO FLAXMAN ISLAND OUT TO 15 NM-
PKZ815-FLAXMAN ISLAND TO DEMARCATION POINT OUT TO 15 NM-
PKZ859-POINT FRANKLIN TO CAPE HALKETT FROM 45 TO 80 NM-
PKZ860-CAPE HALKETT TO FLAXMAN ISLAND FROM 45 TO 80 NM-
ICE COVERED.
FORECAST FOR THE BEAUFORT SEA (DAYS 1 THROUGH 5)...FORECAST
CONFIDENCE IS HIGH. LIGHT SOUTHWESTERLY WINDS TRANSITION TO
NORTHEASTERLY ON WEDNESDAY. NEAR SHORE ICE WILL CONTINUE TO DEGRADE.
-CHUKCHI SEA-
PKZ500-WESTERN US ARCTIC OFFSHORE-
PKZ505-CENTRAL US ARCTIC OFFSHORE-
PKZ807-WALES TO CAPE ESPENBERG OUT TO 15 NM-
PKZ808-CAPE ESPENBERG TO MOTHERWOOD POINT OUT TO 10 NM-
PKZ809-MOTHERWOOD POINT TO CAPE KRUSENSTERN OUT TO 10 NM-
PKZ810-CAPE KRUSENSTERN TO CAPE THOMPSON OUT TO 15 NM-
PKZ811-CAPE THOMPSON TO CAPE BEAUFORT OUT TO 15 NM-
PKZ812-CAPE BEAUFORT TO POINT FRANKLIN OUT TO 15 NM-
PKZ813-POINT FRANKLIN TO CAPE HALKETT OUT TO 15 NM-
PKZ855-KOTZEBUE SOUND GREATER THAN 10 NM-
PKZ856-WALES TO CAPE THOMPSON GREATER THAN 15 NM-
PKZ857-CAPE THOMPSON TO CAPE BEAUFORT FROM 15 TO 85 NM-
PKZ858-CAPE BEAUFORT TO POINT FRANKLIN FROM 15 TO 85 NM-
PKZ859-POINT FRANKLIN TO CAPE HALKETT FROM 15 TO 75 NM-
ICE COVERED.
THE MAIN ICE EDGE IN THE BERING SEA EXTENDS FROM NEAR 66 27'N 165
25'W TO 67 6'N 165 7'W TO 68 17'N 167 55'W TO 67 47'N 171 1'W TO 66
16'N 170 11'W.
FROM LAND-BASED POINTS IN ALASKA, THE MAIN ICE EDGE IN THE CHUKCHI
SEA EXTENDS FROM 18 NM NORTHEAST OF SHISHMAREF TO 38 NM SOUTH OF
KIVALINA TO 22 NM WEST OF POINT HOPE TO 127 NM NORTHWEST OF DIOMEDE
TO 42 NM NORTHWEST OF DIOMEDE. THE ICE EDGE IS OPEN WATER.
FORECAST FOR THE CHUKCHI SEA (DAYS 1 THROUGH 5)...FORECAST
CONFIDENCE IS HIGH. NORTHERLIES WILL INCREASE THROUGH THE WEEK,
MOVING ICE IN THE MARGINAL ICE ZONE IN THE NAVIGATIONAL WATERS IN
THE VICINITY OF POINT HOPE AND CAPE LISBURNE SOUTHWESTWARD AROUND 10
NM/DAY. PACK ICE WILL CONTINUE TO DEGRADE IN AND OUTSIDE OF KOTZEBUE
SOUND.
-BERING SEA-
PKZ763-KUSKOKWIM DELTA AND ETOLIN STRAIT OUT TO 15 NM-
PKZ765-NORTH AND WEST OF NUNIVAK ISLAND
PKZ801-ETOLIN STRAIT TO DALL POINT OUT TO 15 NM-
PKZ802-DALL POINT TO KWIKPAK PASS OUT TO 15 NM-
PKZ803-KWIKPAK PASS TO CAPE STEPHENS OUT TO 15 NM-
PKZ804-CAPE STEPHENS TO MOSES POINT OUT TO 15 NM-
PKZ805-MOSES POINT TO SLEDGE ISLAND OUT TO 15 NM-
PKZ806-SLEDGE ISLAND TO WALES OUT TO 15 NM-
PKZ850-ETOLIN STRAIT TO KWEMELUK PASS FROM 15 TO 90 NM-
PKZ852-NORTON SOUND GREATER THAN 15 NM-
PKZ853-KWEMELUK PASS TO KWIKPAK PASS FROM 15 TO 90 NM-
PKZ760-BRISTOL BAY GREATER THAN 15 NM-
PKZ761-BRISTOL BAY FROM PORT HEIDEN TO CAPE CHICHAGOF OUT TO 15 NM-
PKZ762-BRISTOL BAY FROM CAPE CHICHAGOF TO CAPE PIERCE OUT TO 15 NM-
PKZ764-KUSKOKWIM DELTA FROM 15 TO 80 NM-
PKZ767-SAINT MATTHEW ISLAND WATERS-
PKZ816-SOUTH SIDE OF SAINT LAWRENCE ISLAND OUT TO 15 NM-
PKZ817-NORTH SIDE OF SAINT LAWRENCE ISLAND OUT TO 15 NM-
PKZ851-SOUTHWEST OF SAINT LAWRENCE ISLAND FROM 15 TO 100 NM-
PKZ854-SLEDGE ISLAND TO WALES GREATER THAN 15 NM-
ICE FREE.
FORECAST FOR THE BERING SEA (DAYS 1 THROUGH 5)...FORECAST CONFIDENCE
IS HIGH.
-COOK INLET-
PKZ730-WEST OF BARREN ISLANDS INCLUDING KAMISHAK BAY-
PKZ740-COOK INLET NORTH OF KALGIN ISLAND-
PZK741-KACHEMAK BAY-
PKZ742-COOK INLET KALGIN ISLAND TO POINT BEDE-
ICE FREE.
FORECAST FOR COOK INLET (DAYS 1 THROUGH 5)...FORECAST CONFIDENCE IS
HIGH.
LAWSON
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