Eastern Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 March 2015

Today Tonight and Monday

Wind south 20 knots increasing to south 30 early this morning then diminishing to southwest 20 early this evening. Wind increasing to northwest 30 late this evening then diminishing to northwest 20 Monday morning. Wind diminishing to northwest 15 Monday afternoon and to light Monday evening.

Snow beginning this morning and ending near midnight. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EDT 29 March 2015
Today Tonight and Monday Mainly ice covered.

Extended Forecast

Issued 03:00 AM EDT 29 March 2015
Tuesday Wind light.
Wednesday Wind south 15 knots increasing to south 30 late in the day.
Thursday Wind southwest 30 knots diminishing to northwest 20 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 28 March 2015 Today Tonight and Sunday Ice pressure warning in effect. 8 tenths of thick lake ice except 9 plus tenths of thick lake ice over the eastern section. Strong ice pressure developing in the pack ice Sunday morning.

*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 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 EDT 28 March 2015 Today Tonight and Sunday

Ice Coverage

Ice pressure warning in effect.

8 tenths of thick lake ice except 9 plus tenths of thick lake ice
over the eastern section. Strong ice pressure developing in the pack
ice Sunday morning.

Warnings

Warnings (In effect)

Ice pressure warning in effect

Eastern Lake Superior

Issued 12:00 PM EDT 28 March 2015

Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 29 March 2015 Today Tonight and Monday At 3:00 a.m. EDT today departing high 1032 mb located over Kentucky.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over northwestern Ontario.
By 3:00 a.m. EDT Monday trough located on a line north-south over
western Lake Ontario.

By 3:00 a.m. EDT Monday ridge located on a line north-south over
northwestern Ontario.

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