950
FZAK80 PAFC 162045 CCA
ICEAFC
SEA ICE FORECAST FOR WESTERN AND ARCTIC ALASKAN COASTAL WATERS
NATIONAL WEATHER SERVICE ANCHORAGE ALASKA
1245 PM AKDT WEDNESDAY 16 SEPTEMBER 2020
FORECAST VALID...MONDAY 21 SEPTEMBER 2020
ANALYSIS CONFIDENCE...HIGH
SYNOPSIS...HIGH PRESSURE WILL DRIFT OFF TO THE SOUTHEAST THROUGH
FRIDAY AS A LOW MOVES NORTHEASTWARD THROUGH THE BEAUFORT SEA FRIDAY
THROUGH MONDAY. ANOTHER LOW WILL MOVE SOUTHEASTWARD FROM THE HIGH
ARCTIC THROUGH THE CHUKCHI SEA SUNDAY AND MONDAY.
-CHUKCHI SEA-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
THE MAIN SEA ICE EDGE EXTENDS FROM APPROXIMATELY 540 NM NORTH OF
POINT BARROW TO 79.8N 163.1W TO 78N 170.8W AND CONTINUES WEST IN
RUSSIAN WATERS. THE ICE EDGE IS MAINLY OPEN WATER.
FORECAST FOR THE CHUKCHI SEA (DAYS 1 THROUGH 5)...WINDS WILL
GENERALLY BE LIGHT AND VARIABLE OVER THE ICE EDGE THROUGH MONDAY.
EXPECT THE ICE TO CONTINUE MELTING SOUTH OF 78N OR SO, WHILE NEW ICE
FORMATION CONTINUES WITHIN THE ICE PACK AND NEAR THE ICE EDGE NORTH
OF 78N. DURING TIMES OR IN AREAS OF LIGHT WINDS, NEW SEA ICE MAY
FORM IN THE OVERNIGHT HOURS AND MELT DURING THE DAY.
-BEAUFORT SEA-
PKZ505-CENTRAL U.S. ARCTIC OFFSHORE-
PKZ510-EASTERN U.S. ARCTIC OFFSHORE-
THE MAIN ICE EDGE EXTENDS FROM APPROXIMATELY 540 NM NORTH OF POINT
BARROW TO 79.8N 153.5W TO 77.1N 144.4W TO 75.9N 148.5W TO 75.3N
153.7W TO 72.5N 148.4W TO 71.2N 145.7W TO 71.2N 142.1W TO 70.1N
140.4W AND CONTINUES EAST IN CANADIAN WATERS. THE ICE EDGE IS MAINLY
OPEN WATER.
FORECAST FOR THE BEAUFORT SEA (DAYS 1 THROUGH 5)...WINDS WILL
GENERALLY BE EASTERLY THROUGH SATURDAY, THEN BECOMING NORTHERLY TO
NORTHWESTERLY AS THE LOW PASSES BY. EXPECT THE ICE TO CONTINUE
MELTING SOUTH OF 78N OR SO, WHILE NEW ICE FORMATION CONTINUES WITHIN
THE ICE PACK AND NEAR THE ICE EDGE NORTH OF 78N. DURING TIMES OR IN
AREAS OF LIGHT WINDS, NEW SEA ICE MAY FORM IN THE OVERNIGHT HOURS
AND MELT DURING THE DAY.
SCHRECK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page