CU4 Marine Forecast and Alerts

Canada

N.America Satellite

Canada Radar

Current Conditions

Canada 7 Day High and Low Temperatures Forecast

10 Day Forecast

Lightning Danger Radar

Lightning Strikes Radar

CU4

Issued 05:00 PM EDT 25 September 2026

Forecasts are unavailable until further request.

Ice Forecasts

Issued 10:00 AM EDT 25 September 2026 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Northwest Territories near 7012N
12432W to Banks Island near 7107N 12314W. 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
7005N 9847W to Prince of Wales Island near 7117N 9841W. Sea ice
northwest of the ice edge.

Fourth ice edge estimated from Prince of Wales Island near 7246N
9632W to Somerset Island near 7320N 9538W. Sea ice northwest of the
ice edge.

Ice Coverage

Forecasts available to mariners upon request.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 6:20 PM MDT 25 September 2026 Tonight and Saturday At 0000 UTC Saturday weakening low 986 mb located at 83N 132W.
By 0000 UTC Sunday low 996 mb located at 86N 125W.

At 0000 UTC Saturday ridge from 1017 mb high located over 67N 124W
extending westward.
By 0000 UTC Sunday ridge located from 76N 120W to 72N 168W.

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