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St. Roch

Warnings

Forecast

Marine Forecast

Issued 07:00 PM MDT 20 September 2026

Tonight and Monday.

Gale warning in effect.

Wind south 40 knots diminishing to south 30 this evening and to southwest 20 after midnight. Wind southwest 20 Monday.

Showers. Fog patches forming early Monday morning.

Waves

Issued 07:00 PM MDT 20 September 2026
Tonight and Monday. Seas 2 to 3 metres subsiding to 1 after midnight.

Extended Forecast

Issued 07:00 PM MDT 20 September 2026
Tuesday Wind southwest 20 knots veering to northwest 20 to 25 in the afternoon.
Wednesday Wind northwest 20 to 25 knots diminishing to light.
Thursday Wind south 20 to 25 knots.

Ice Forecast

Issued 10:00 AM EDT 20 September 2026 Today Tonight and Monday Bergy water. 

[ Canadian Ice Service ]

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Map of Arctic - Western Arctic marine weather areas Resolute Airport Thomsen River Ulukhaktok Airport Cape Providence Nangmagvik Lake Komakuk Beach Taloyoak Airport Cape Stallworthy Stefansson Island Mould Bay Naujaat Rea Point Pond Inlet Airport Isachsen Igloolik Airport Sanirajak Airport Grise Fiord Airport Gateshead Island Kugluktuk Airport Little Chicago Storm Hills Liverpool Bay Bathurst Inlet Tuktoyaktuk Airport Pelly Island Paulatuk Airport Norman Wells Airport Sachs Harbour Airport Keats Point Inuvik Airport Tulita Airport Fort Good Hope Airport Cape Parry Airport Aklavik Airport Shingle Point Airport Fort Ross Arctic Bay Cambridge Bay Airport CFS Alert Croker River Shepherd Bay Airport Herschel Island Cape Liverpool Cape Peel West Kugaaruk Airport Gjoa Haven Airport Eureka Airport Hat Island
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 September 2026 Today Tonight and Monday

Ice Edge

First ice edge estimated from Northwest Territories near 7004N
12421W to Banks Island near 7105N 12303W. Sea ice west of the ice
edge.

Second ice edge estimated from Banks Island near 7133N 12030W to
Victoria Island near 7138N 11901W. Sea ice north of the ice edge.

Third ice edge estimated from Victoria Island near 6941N 10055W to
7023N 9839W to Prince of Wales Island near 7121N 9912W. Sea ice
northwest of the ice edge.

Fourth ice edge estimated from Prince of Wales Island near 7303N
9752W to Somerset Island near 7325N 9538W. Sea ice north of the ice
edge.

Ice Coverage

Bergy water.

Warnings

Warnings (In effect)

Gale warning in effect

St. Roch

Issued 7:00 PM MDT 20 September 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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM MDT 20 September 2026 Tonight and Monday At 0000 UTC Monday ridge located on a line north-south over central
Ellesmere Island.
By 0000 UTC Tuesday ridge located on a line north-south over
eastern Ellesmere Island.

At 0000 UTC Monday trough from 997 mb low located over 69N 114W
extending westward.
By 0000 UTC Tuesday low 988 mb located over 71N 109W extending
westward.

Arctic - Western Arctic Area

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Marine Weather for Canada

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