Gulf - Port au Port, Canada Marine Forecast, Warnings and Alerts

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Gulf - Port au Port

Marine Forecast

Issued 10:00 AM NDT 11 March 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind north 20 knots backing to northwest 10 to 15 early this afternoon then veering to northeast 10 to 15 this evening. Wind veering to east 20 late overnight then increasing to east 35 Thursday morning and locally gusts to 55 along the Newfoundland coast. Wind diminishing to southwest 25 Thursday afternoon except variable 15 to 20 over northern sections.

Snow beginning this evening changing to rain or freezing rain near noon Thursday. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Over open water freezing spray ending this afternoon. Freezing spray beginning overnight and ending Thursday afternoon.

Temperatures minus 10 to minus 2 rising to zero to plus 8 Thursday afternoon.

Winds

Issued 10:00 AM NDT 11 March 2026

Today Tonight and Thursday. Gale warning in effect. Wind north 20 knots backing to northwest 10 to 15 early this afternoon then veering to northeast 10 to 15 this evening. Wind veering to east 20 late overnight then increasing to east 35 Thursday morning and locally gusts to 55 along the Newfoundland coast. Wind diminishing to southwest 25 Thursday afternoon except variable 15 to 20 over northern sections.

Waves

Issued 06:00 AM NDT 11 March 2026

Today Tonight and Thursday. Outside the ice edge seas 1 to 2 metres subsiding to 1 or less this afternoon then building to 1 to 2 late overnight. Seas building to 2 to 3 near noon Thursday.

Weather & Visibility

Issued 10:00 AM NDT 11 March 2026

Today Tonight and Thursday. Snow beginning this evening changing to rain or freezing rain near noon Thursday. Visibility 1 mile or less in snow.

Air temperature

Issued 10:00 AM NDT 11 March 2026

Today Tonight and Thursday. Temperatures minus 10 to minus 2 rising to zero to plus 8 Thursday afternoon.

Freezing Spray

Issued 10:00 AM NDT 11 March 2026

Today Tonight and Thursday. Freezing spray warning in effect. Over open water freezing spray ending this afternoon. Freezing spray beginning overnight and ending Thursday afternoon.

Ice Forecasts

Issued 10:00 AM EDT 11 March 2026 Today Tonight and Thursday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4603N 5814W to 4722N 5805W to 4643N 5628W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

Open water except 3 tenths grey-white ice including 1 tenth
first-year ice in the extreme northeastern section. Consolidated
first-year ice along parts of the coasts.

Iceberg Bulletin

Issued 2:30 PM EDT 10 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Mar estimated from Newfoundland near
4640N 5310W to 4520N 4930W to 4555N 4410W to 4815N 4300W to 5930N
5700W to 6120N 5400W to 5825N 4900W then eastward.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Gale warning in effect

Gulf - Port au Port

Issued 10:00 AM NDT 11 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

Gulf - Port au Port

Issued 10:00 AM NDT 11 March 2026

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Technical Marine Synopsis

Issued 10:00 AM NDT 11 March 2026 Today Tonight and Thursday At 10:00 a.m. NDT today low 977 mb located over northern Labrador
Sea.
By 10:00 a.m. NDT Thursday low 990 mb located southeast of
Labrador Sea.

At 3:00 a.m. NDT Thursday low 992 mb located over southern Quebec.
By 8:00 p.m. NDT Thursday low 991 mb located over Northeast Gulf.

At 10:00 a.m. NDT today ridge located over Quebec.
By 10:00 a.m. NDT Thursday ridge located northeast of Newfoundland.

Marine Weather Statement

Issued 9:52 AM NDT 11 March 2026 An intense low pressure system over the Northern Labrador Sea will
track southeastward to lie southeast of the Labrador marine district
by overnight tonight. Strong to gale force northwesterlies will
persist over Belle Isle Bank today and tonight as a result of this
low.

A second low pressure system will approach from the west tonight and
cross the Gulf of St. Lawrence on Thursday. Strong to gale force
northeasterlies to southeasterlies ahead of the low will shift to
southwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for
Gulf waters, Southwest Coast, South Coast, East Coast, Belle Isle
Bank and Northern Grand Banks.

Marine interests are also advised that freezing spray warnings are in
effect for Gulf waters, Northeast Coast, Belle Isle Bank and Funk
Island Bank.

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