Marine Forecast
Issued 03:00 AM NST 21 December 2025
Today Tonight and Monday.
Wind west 25 knots and locally gusts to 35 along the coast early
this morning. Wind diminishing to southwest 15 this morning then increasing to
southwest 25 this afternoon. Wind backing to south 30 this evening then
diminishing to northwest 15 to 20 Monday morning. Wind veering to north 20
Monday afternoon.
Showers tonight and Monday morning.
Temperatures plus 1 rising to plus 6 this evening then falling
to minus 2 Monday evening.
Winds
Issued 03:00 AM NST 21 December 2025
Today Tonight and Monday.
Wind west 25 knots and locally gusts to 35 along the coast early
this morning. Wind diminishing to southwest 15 this morning then increasing to
southwest 25 this afternoon. Wind backing to south 30 this evening then
diminishing to northwest 15 to 20 Monday morning. Wind veering to north 20
Monday afternoon.
Waves
Issued 06:00 PM NST 20 December 2025
Tonight and Sunday.
Seas 5 to 7 metres subsiding to 3 to 5 Sunday morning and to 2 to
3 Sunday afternoon.
Weather & Visibility
Issued 03:00 AM NST 21 December 2025
Today Tonight and Monday.
Showers tonight and Monday morning.
Air temperature
Issued 03:00 AM NST 21 December 2025
Today Tonight and Monday.
Temperatures plus 1 rising to plus 6 this evening then falling
to minus 2 Monday evening.
Ice ForecastsIssued 10:00 AM EST 20 December 2025 Today Tonight and Sunday Ice EdgeIce edge estimated from Newfoundland near 4842N 5305W to 4935N 5326W to 5012N 5536W to 5125N 5504W to 5349N 5528W to 5633N 6011W to 5928N 6239W to 6200N 5947W then northeastward. Sea ice west of the ice edge.
Iceberg BulletinIssued 1:30 PM EST 20 December 2025 Iceberg LimitIceberg limit at 0000 UTC 21 Dec estimated from Newfoundland near 5020N 5628W to 5100N 5345W to 5330N 5145W to 5945N 5730W to 6155N 5330W to 6005N 4945W to 5900N 4500W then northeastward.Iceberg CountNo confirmed icebergs.
No watches or warnings in effect.
Technical Marine SynopsisIssued 3:00 AM NST 21 December 2025 Today Tonight and Monday At 3:00 a.m. NST today departing trough located east of the Marine District.
At 3:00 a.m. NST today low 996 mb located southeast of James Bay. By 3:00 a.m. NST Monday low 997 mb located over western Belle Isle Bank.
At 3:00 a.m. NST today ridge located over the Gulf of St. Lawrence. By 8:00 p.m. NST tonight departing ridge located east of the Marine District.
Marine Weather StatementIssued 2:55 AM NST 21 December 2025 A trough of low pressure will continue to pull eastward away from the marine district this morning. Strong to gale force westerlies behind the trough will diminish this morning.
A low pressure system southeast of James Bay will quickly track eastward today to lie over Gulf waters this evening. The low will then slow as it tracks across Belle Isle Bank overnight and Monday. Strong to gale force southerlies will spread across the district ahead of the low then shift to strong to gale force northerlies to northwesterlies in its wake.
Marine interests are advised that gale warnings are in effect for Strait of Belle Isle, East Coast, Northeast Coast, Belle Isle Bank, Funk Island Bank, and Northern Grand Banks.
Marine interests are also advised that freezing spray warnings are in effect for Strait of Belle Isle, Gulf waters, Northeast Coast, and Belle Isle Bank.
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