Larsen Marine Forecast, Warnings 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

Laurentian Fan

Marine Forecast

Issued 08:00 PM ADT 26 July 2025

Tonight and Sunday.

Wind northwest 15 to 20 knots diminishing to light early Sunday morning.

Winds

Issued 08:00 PM ADT 26 July 2025

Tonight and Sunday. Wind northwest 15 to 20 knots diminishing to light early Sunday morning.

Waves

Issued 05:00 AM ADT 27 July 2025

Today Tonight and Monday. Seas 2 to 3 metres subsiding to 1 to 2 early this morning and to 1 or less late overnight.

Ice Forecasts

Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.

Iceberg Bulletin

Issued 2:30 PM EDT 26 July 2025

Iceberg Limit

Iceberg limit at 0000 UTC 27 Jul estimated from Newfoundland near
4741N 5247W to 4820N 4430W to 5040N 4335W to 5425N 4900W to 5645N
5340W to 5745N 5405W to 6100N 5310W to 5900N 4740W then northward.

Iceberg Count

No confirmed icebergs.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 3:00 AM ADT 27 July 2025 Today Tonight and Monday At 3:00 a.m. ADT today ridge located over the southern Marine
District.
By 3:00 a.m. ADT Monday ridge located southeast of the Marine
District.

At 3:00 a.m. ADT today trough located on a line northeast-southwest
over Ontario.
By 3:00 a.m. ADT Monday trough located from Maine to Anticosti
Island.

At 3:30 p.m. ADT Monday weakening trough located on a line
northeast-southwest over the Gulf of St. Lawrence.

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