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St. Roch

Warnings

Forecast

Marine Forecast

Issued 07:00 PM MST 09 November 2025

Tonight and Monday.

Wind light becoming south 15 knots late this evening then backing to east 15 late Monday afternoon.

Flurries. Visibility as low as 1 mile in flurries.

Freezing spray warning in effect.

Over open water freezing spray late overnight and Monday morning.

Low tonight minus 13. High Monday minus 8.

Waves

Issued 07:00 PM MST 09 November 2025
Tonight and Monday. Outside the ice edge seas 1 metre or less.

Extended Forecast

Issued 07:00 PM MST 09 November 2025
Tuesday Wind east 20 knots.
Wednesday Wind east 15 knots backing to north 20 late in the day.
Thursday Wind northwest 30 knots.

Ice Forecast

Issued 10:00 AM EST 9 November 2025 Today Tonight and Monday 9 tenths new ice including 4 tenths grey ice. 

[ Canadian Ice Service ]

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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 9 November 2025 Today Tonight and Monday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

9 tenths new ice including 4 tenths grey ice.

Warnings

Warnings (In effect)

Freezing spray warning in effect

St. Roch

Issued 04:46 AM MST 10 November 2025

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.

Synopsis

Technical Marine Synopsis

Issued 6:30 AM MST 10 November 2025 Today Tonight and Tuesday At 1200 UTC Monday departing ridge located from 67N 80W to 71N 77W.

By 0000 UTC Wednesday approaching low 973 mb located at 64N 103W.

At 1200 UTC Monday dissipating low 1010 mb located at 75N 75W.

Arctic - Eastern Arctic Area

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Marine Weather for Canada

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