Eastern Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 27 February 2017

Today Tonight and Tuesday

Gale warning in effect.

Wind northwest 20 knots diminishing to south 15 this morning then increasing to south 20 near noon. Wind veering to southwest 20 near noon Tuesday then increasing to northeast 30 Tuesday afternoon. Wind increasing to northeast 35 Tuesday evening.

Chance of flurries today and early this evening. Periods of rain beginning overnight changing to snow and rain near noon Tuesday. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Risk of freezing spray early this morning. Freezing spray beginning Tuesday evening.

Waves

Issued 03:00 AM EST 27 February 2017
Today Tonight and Tuesday Waves 3 metres subsiding to one early this morning then building to 2 this afternoon. Waves building to 3 Tuesday evening.

Extended Forecast

Issued 03:00 AM EST 27 February 2017
Wednesday Wind northeast 35 knots diminishing to northeast 20 in the morning.
Thursday Wind light increasing to north 20 knots.
Friday Wind northwest 20 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EST 26 February 2017 Today Tonight and Monday Open water except 4 tenths of new lake ice including 1 tenth of thin lake ice along parts of the southern and eastern shore becoming 8 tenths of new lake ice including 2 tenths of thin lake ice overnight.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Superior marine weather areas Mid Superior - 45001 East Superior - 45004 West Superior - 45006 Slate Island - 45136 Lake Of the Woods - 45148 Royal Island Armstrong Airport Caribou Island Marathon Airport Pukaskwa National Park Thunder Bay Airport Welcome Island Little Flatland Island Sault Ste. Marie Airport Wawa Airport Kenora Airport
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EST 26 February 2017 Today Tonight and Monday

Ice Coverage

Open water except 4 tenths of new lake ice including 1 tenth of thin
lake ice along parts of the southern and eastern shore becoming 8
tenths of new lake ice including 2 tenths of thin lake ice
overnight.

Warnings

Warnings (In effect)

Gale warning in effect

Eastern Lake Superior

Issued 05:05 AM EST 27 February 2017

'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

Eastern Lake Superior

Issued 05:05 AM EST 27 February 2017

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 3:00 AM EST 27 February 2017 Today Tonight and Tuesday At 3:00 a.m. EST today departing trough located on a line
northeast-southwest over northeastern Ontario.

At 3:00 a.m. EST today ridge located on a line north-south over
Lake Superior.
By 3:00 a.m. EST Tuesday ridge located on a line north-south
over Maine.

By 3:00 a.m. EST Tuesday trough located on a line
northeast-southwest over central Minnesota.

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