CT4
Forecast
Marine Forecast
Issued 05:00 AM EDT 10 October 2026
Today Tonight and Sunday.
Wind light increasing to northeast 15 knots this evening and to northeast 20 Sunday morning.
Scattered flurries and fog patches changing to snow this afternoon then to scattered flurries Sunday evening. Visibility 1 mile or less in fog patches and as low as 1 mile in snow.
Temperatures minus 4 falling to minus 9 Sunday evening.
Waves
Issued 05:00 AM EDT 10 October 2026
Today Tonight and Sunday.
Mainly ice covered.
Extended Forecast
Issued 05:00 AM EDT 10 October 2026
Monday
Wind northeast 15 to 20 knots diminishing to
light in the morning.
Tuesday
Wind west 15 knots increasing to northwest 20
to 25.
Wednesday
Wind northwest 20 to 25 knots backing to
southwest 25 late in the day.
Ice Forecast
Issued 10:00 AM EDT 10 October 2026 Today Tonight and Sunday Forecasts available to mariners upon request.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 10 October 2026 Today Tonight and SundayIce Edge
Ice edge is outside the forecast region.Ice Coverage
Forecasts available to mariners upon request.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 AM MDT 10 October 2026 Today Tonight and Sunday At 1200 UTC Saturday dissipating low 1002 mb located at 81N 122W.At 1200 UTC Saturday trough located near Arctic Coast of Alaska.
By 0000 UTC Monday departing low 991 mb located at 73N 98W.
Arctic - Western Arctic Area
- Admiralty
- Alert
- Amundsen
- Axel Heiberg
- Baillie
- Ballantyne
- Banks
- Barrow
- Bartlett
- Bathurst
- Boothia
- Borden
- Brock
- Byam
- Camsell Bend mile 290 to Tulita mile 512
- Clarence - northern half
- Clarence - southern half
- Committee
- Coronation
- CT4
- CU4
- CV4
- CV5
- CW3
- CW4
- CW5
- CX4
- Dease
- Dolphin
- East Baffin - northern half
- Ellef Ringnes
- Ellesmere
- Eureka - northern half
- Eureka - southern half
- Fitzwilliam
- Fort Good Hope mile 684 to Point Separation mile 913
- Greely
- Griper
- Gustaf
- Hassel
- Hazen
- Igloolik
- Jones - eastern half
- Jones - western half
- Kane - northern half
- Kane - southern half
- Lancaster - eastern half
- Lancaster - western half
- Larsen
- Liddon
- Mackenzie
- Maclean
- Massey
- Maud
- McClintock
- McClure
- Melville
- Nansen
- Navy Board
- Northwest Beaufort
- North Mackenzie
- North Prince Patrick
- North Sverdrup
- North Tuktoyaktuk
- Norwegian
- Peary
- Peel
- Point Separation mile 913 to Kittigazuit Bay mile 1081
- Pond
- Prince Alfred
- Prince of Wales
- Prince Patrick
- Queens
- Rae
- Regent
- Robeson - northern half
- Robeson - southern half
- Roes Welcome
- South Axel Heiberg
- South Ellef Ringnes
- South Prince Patrick
- South Sverdrup
- St. Roch
- Tuktoyaktuk - northern half
- Tuktoyaktuk - southern half
- Tulita mile 512 to Fort Good Hope mile 684
- Ulukhaktok
- Ward Hunt
- West Baffin - northern half
- West Baffin - southern half
- West Foxe
- West Prince Alfred
- Wilkins
- Yukon Coast
Another Region
- Date modified:
ATOM