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Government of Canada / Gouvernement du Canada

Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 10:00 AM NDT 19 March 2026

Today Tonight and Friday.

Gale warning in effect.

Wind northeast 15 to 20 knots except northeast 25 over southern sections. Wind becoming northeast 25 this afternoon except southwest 35 over southeastern sections overnight and Friday morning. Wind diminishing to north 15 Friday morning except southwest 35 to 45 over southeastern sections. Wind becoming northwest 15 to 20 Friday afternoon.

Snow or rain becoming rain near noon Friday. Fog banks forming this evening and dissipating Friday evening. Visibility 1 mile or less in precipitation and in fog banks.

Temperatures near zero.

Waves

Issued 06:00 AM NDT 19 March 2026
Today Tonight and Friday. Seas 2 to 3 metres except 3 to 4 over southeastern sections Friday.

Extended Forecast

Issued 03:00 AM NDT 19 March 2026
Saturday Wind variable 10 to 15 knots increasing to east 15 to 20 in the morning.
Sunday Wind variable 10 to 15 knots increasing to west 15 to 20.
Monday Wind variable 10 to 15 knots increasing to south 25 to 35.

Ice Forecast

Issued 10:00 AM EDT 18 March 2026 Today Tonight and Thursday Ice free.  

[ Canadian Ice Service ]

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Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 18 March 2026 Today Tonight and Thursday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 5131N 4848W
to 5511N 5207W to 5652N 5608W to 6000N 5815W to 6159N 5721W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 18 March 2026 Today Tonight and Thursday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 5131N 4848W
to 5511N 5207W to 5652N 5608W to 6000N 5815W to 6159N 5721W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 3:08 PM EDT 18 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Mar estimated from Newfoundland near
4640N 5310W to 4530N 4530W to 4530N 4400W to 4815N 4240W to 5200N
4700W to 5650N 5345W to 5930N 5700W to 6120N 5400W to 5815N 4855W
then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 3:08 PM EDT 18 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Mar estimated from Newfoundland near
4640N 5310W to 4530N 4530W to 4530N 4400W to 4815N 4240W to 5200N
4700W to 5650N 5345W to 5930N 5700W to 6120N 5400W to 5815N 4855W
then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM NDT 19 March 2026 Today Tonight and Friday At 3:00 a.m. NDT today trough located east of the Grand Banks.
By 10:00 a.m. NDT today departing trough located east of the
Marine District.

At 3:00 a.m. NDT today trough located south of the Marine District.
By 3:00 a.m. NDT Friday trough located on a line northeast-southwest
over the southern Grand Banks.

At 3:00 a.m. NDT today ridge located on a line northwest-southeast
over the Gulf of St. Lawrence.
By 3:00 a.m. NDT Friday ridge located on a line east-west over
Belle Isle Bank.

Atlantic - Maritimes Area

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