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 09 May 2025

Tonight and Saturday.

Wind southerly 20 to 25 knots increasing to southerly 25 to 30 after midnight except southwest 15 over western sections. Wind diminishing to southwest 15 Saturday morning then increasing to south 20 to 25 Saturday afternoon.

Showers and fog banks. Risk of thunderstorms late this evening and Saturday afternoon and evening.

Winds

Issued 08:00 PM ADT 09 May 2025

Tonight and Saturday. Wind southerly 20 to 25 knots increasing to southerly 25 to 30 after midnight except southwest 15 over western sections. Wind diminishing to southwest 15 Saturday morning then increasing to south 20 to 25 Saturday afternoon.

Waves

Issued 05:00 PM ADT 09 May 2025

Tonight and Saturday. Seas 1 to 2 metres building to 2 to 3 Saturday evening.

Weather & Visibility

Issued 08:00 PM ADT 09 May 2025

Tonight and Saturday. Showers and fog banks. Risk of thunderstorms late this evening and Saturday afternoon and evening.

Ice Forecasts

Issued 10:00 AM EDT 9 May 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Quebec near 5029N 5935W to 5024N 5913W to 5104N 5745W to Newfoundland near 5049N 5704W. Sea ice north of the ice edge.

Ice Coverage

Ice free.

Iceberg Bulletin

Issued 2:39 PM EDT 9 May 2025

Iceberg Limit

Iceberg limit at 0000 UTC 10 May estimated from Newfoundland near 4723N 5503W to 4230N 5105W to 4135N 4720W to 4900N 4045W to 5320N 4815W to 5915N 5605W to 5920N 5335W to 5820N 4745W then eastward.

Iceberg Count

No confirmed icebergs.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 8:00 PM ADT 9 May 2025 Tonight and Saturday At 8:00 p.m. ADT tonight trough located over the southern Marine
District.
By 3:00 a.m. ADT Saturday weakening trough located over the southern
Marine District.

At 3:00 a.m. ADT Saturday low 1009 mb located near Cape Cod.
By 8:00 p.m. ADT Saturday low 1002 mb located near Grand Manan.

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