Northumberland Strait


Marine Forecast

Issued 03:30 PM ADT 21 July 2017

Tonight and Saturday.

Squall watch in effect.

Wind variable 10 to 15 knots with gusts to 40 near thunderstorms late this afternoon and this evening. Wind becoming northwesterly 15 to 20 early Saturday morning.

A few showers and a few thunderstorms ending early Saturday morning with a risk of thunderstorms.

Extended Forecast

Issued 03:30 PM ADT 21 July 2017
Sunday Wind westerly 15 to 20 knots.
Monday Wind variable 10 to 15 knots.
Tuesday Wind northeasterly 10 to 15 knots.

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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 June 2017 Forecasts have ended for the season.

Watches (In effect)

Squall watch in effect

Northumberland Strait

Issued 1:32 PM ADT 21 July 2017 Conditions are favourable for the development of squalls with wind gusts up to 40 knots and frequent lightning.

Potentially severe thunderstorms with gust of up to 40 kts are expected this afternoon and may persist into this evening.

Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 3:30 PM ADT 21 July 2017 Tonight and Saturday At 3:30 p.m. ADT today trough located over the Gulf of St. Lawrence.
By 3:00 a.m. ADT Saturday trough located over the southeastern
Marine District.

Marine Weather Statement

Issued 3:22 PM ADT 21 July 2017 Conditions are favourable for the development of potentially severe
thunderstorms with gust of up to 40 knots this afternoon and evening
over the Northumberland Strait.

Marine interests are advised that a squall watch is in effect for
Northumberland Strait.

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