Western Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 03 March 2015

Today Tonight and Wednesday

Wind south 15 knots increasing to south 20 this morning then veering to southwest 20 this afternoon. Wind veering to northwest 20 this evening then diminishing to northwest 15 Wednesday morning. Wind diminishing to northwest 10 Wednesday evening.

Snow beginning this morning changing to chance of flurries this evening. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EST 03 March 2015
Today Tonight and Wednesday Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 03 March 2015
Thursday Wind light becoming west 15 knots in the afternoon.
Friday Wind southwest 20 knots.
Saturday Wind northwest 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EST 2 March 2015 Today Tonight and Tuesday 9 tenths of medium lake ice except 9 plus tenths of thick lake ice in the southeastern section. Consolidated thick lake ice including 3 tenths of very thick lake ice in Black Bay and Nipigon Bay and north of Isle Royale.

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

 

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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 Cameron Falls Caribou Island Geraldton Airport 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 2 March 2015 Today Tonight and Tuesday

Ice Coverage

9 tenths of medium lake ice except 9 plus tenths of thick lake ice
in the southeastern section. Consolidated thick lake ice including 3
tenths of very thick lake ice in Black Bay and Nipigon Bay and north
of Isle Royale.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 3 March 2015 Today Tonight and Wednesday At 3:00 a.m. EST today departing high 1030 mb located over
Pennsylvania.

At 3:00 a.m. EST today deepening low 1001 mb located over
northeastern Manitoba.
By 3:00 a.m. EST Wednesday low 988 mb located near James Bay.

At 3:00 a.m. EST today trough from low located on a line
northeast-southwest over the Ontario - Manitoba border.
By 3:00 a.m. EST Wednesday trough from low located on a line
north-south over Lake Ontario.

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