Language selection

Weather shortcuts

Southwestern Grand Banks

Forecast

Marine Forecast

Issued 10:00 AM NDT 12 April 2026

Today Tonight and Monday.

Gale warning in effect.

Wind west 35 knots veering to northwest 35 to 45 this afternoon then diminishing to northwest 25 to 35 Monday morning. Wind becoming northwest 25 Monday afternoon then backing to southwest 15 to 20 Monday evening.

Rain changing to showers or flurries near noon and ending Monday morning.

Waves

Issued 06:00 AM NDT 12 April 2026
Today Tonight and Monday. Seas 2 to 3 metres building to 3 to 5 near noon and to 5 to 7 this afternoon. Seas subsiding to 3 to 5 Monday morning and to 2 to 3 Monday evening.

Extended Forecast

Issued 03:00 AM NDT 12 April 2026
Tuesday Wind south 25 to 35 knots becoming west 25 in the afternoon.
Wednesday Wind light.
Thursday Wind west 20 knots veering to north 15 to 20.

Ice Forecast

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday Bergy water.  

[ Canadian Ice Service ]

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Atlantic - Newfoundland marine weather areas Englee Wreckhouse Winterland Branch Hill Stephenville Airport Eskasoni (First Nations) Grand Étang St. Lawrence St. John's Int'l Airport St. Anthony Airport Ingonish Beach Sagona Island Port aux Basques La Scie North Mountain Ferolle Point Twillingate Daniel's Harbour St.Paul Island Corner Brook Cape Race J.A. Douglas McCurdy Sydney Airport Burgeo West Chedabucto Bay – 44489 Bonavista Berry Hill Charlottetown Airport Argentia East Point North Cape Long Pond Banquereau - 44139 Îles de la Madeleine Airport Miscou Island Cartwright Airport Cap Whittle Blanc-Sablon Airport Natashquan Airport East Chedabucto Bay – 44488 Marticot Island Pool's Island Mary's Harbour Grates Cove Chevery
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727W
to 4748N 4639W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 12 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727W
to 4748N 4639W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 11 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Apr estimated from Newfoundland near
4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

No confirmed icebergs except less than 10 icebergs north of the
iceberg limit.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 11 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Apr estimated from Newfoundland near
4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 10:00 AM NDT 12 April 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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM NDT 12 April 2026 Today Tonight and Monday At 10:00 a.m. NDT today deepening low 999 mb located over eastern
Newfoundland.
By 3:30 p.m. NDT today merging low 989 mb located east of Funk
Island Bank.

At 10:00 a.m. NDT today deepening low 991 mb located east of the
Grand Banks.
By 3:30 p.m. NDT today merging low 989 mb located east of Funk
Island Bank.

At 3:00 a.m. NDT Monday ridge located on a line north-south over
the Gulf of St. Lawrence.
By 8:00 p.m. NDT Monday ridge located on a line north-south over
eastern Newfoundland.

Marine Weather Statement

Issued 9:50 AM NDT 12 April 2026 A deepening low pressure system over Eastern Newfoundland will track
eastward today. Meanwhile, a second deepening low pressure system
over the Southeastern Grand Banks will track northeastward. By this
afternoon, both systems are expected to merge into an intense low
pressure system that will remain nearly stationary just east of Funk
Island Bank throughout the forecast period.

Strong to gale force northeasterlies to southwesterlies with the
first low will spread across remaining waters this afternoon as the
two lows merge. Winds will diminish gradually from west to east on
Monday as the low begins to track east of the district and a ridge
moves in from the west.

Marine interests are advised that gale warnings are in effect for all
waters.

Atlantic - Newfoundland Area

Another Region

Features

Colour-coded weather alerts

Learn more about weather alerting in Canada

Date modified: