Larsen
Forecast
Marine Forecast
Issued 05:30 PM EDT 20 September 2026
Tonight and Monday.
Wind south 30 knots diminishing to southwest 20 late overnight then backing to south 15 late Monday morning. Wind increasing to south 20 late Monday afternoon.
Rain changing to showers Monday morning. Fog patches.
Waves
Issued 05:30 PM EDT 20 September 2026
Tonight and Monday.
Seas 2 metres subsiding to 1 late overnight.
Extended Forecast
Issued 05:30 PM EDT 20 September 2026
Tuesday
Wind southwest 25 knots veering to northwest
25 late in the day.
Wednesday
Wind northwest 25 knots diminishing to south
15.
Thursday
Wind south 20 knots.
Ice Forecast
Issued 10:00 AM EDT 20 September 2026 Today Tonight and Monday Bergy water.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 20 September 2026 Today Tonight and MondayIce Edge
First ice edge estimated from Northwest Territories near 7004N12421W to Banks Island near 7105N 12303W. Sea ice west of the ice
edge.
Second ice edge estimated from Banks Island near 7133N 12030W to
Victoria Island near 7138N 11901W. Sea ice north of the ice edge.
Third ice edge estimated from Victoria Island near 6941N 10055W to
7023N 9839W to Prince of Wales Island near 7121N 9912W. Sea ice
northwest of the ice edge.
Fourth ice edge estimated from Prince of Wales Island near 7303N
9752W to Somerset Island near 7325N 9538W. Sea ice north of the ice
edge.
Ice Coverage
Bergy water.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM MDT 20 September 2026 Tonight and Monday At 0000 UTC Monday ridge located on a line north-south over centralEllesmere Island.
By 0000 UTC Tuesday ridge located on a line north-south over
eastern Ellesmere Island.
At 0000 UTC Monday trough from 997 mb low located over 69N 114W
extending westward.
By 0000 UTC Tuesday low 988 mb located over 71N 109W extending
westward.
Mackenzie - Mackenzie River Area
- Amundsen
- Axe Point mile 91 to Camsell Bend mile 290
- Baillie
- Banks
- Bathurst
- Bowie - northern half
- Byam
- Camsell Bend mile 290 to Tulita mile 512
- Coronation
- Dease
- Dixon Entrance East
- Dixon Entrance West - east of Langara
- Dixon Entrance West - west of Langara
- Dolphin
- Fort Good Hope mile 684 to Point Separation mile 913
- Great Slave Lake - basin
- Great Slave Lake - east arm
- Great Slave Lake - north arm
- Hecate Strait - northern half
- Lake Athabasca - eastern half
- Lake Athabasca - western half
- Larsen
- Mackenzie
- Maud
- McClintock
- McClure
- Melville
- North Mackenzie
- North Tuktoyaktuk
- Point Separation mile 913 to Kittigazuit Bay mile 1081
- Prince Alfred
- Prince of Wales
- Rae
- Tuktoyaktuk - northern half
- Tuktoyaktuk - southern half
- Tulita mile 512 to Fort Good Hope mile 684
- Ulukhaktok
- West Coast Haida Gwaii - northern half
- Wrigley Harbour mile 0 to Axe Point mile 91
- Yukon Coast
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- Date modified:
ATOM