Eastern Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 27 May 2015

Today Tonight and Thursday

Strong wind warning in effect.

Wind northwest 15 knots diminishing to light early this evening then becoming northeast 15 near midnight. Wind veering to east 15 Thursday morning then increasing to southeast 20 Thursday evening.

Periods of rain changing to chance of showers this evening. A few showers beginning Thursday evening with risk of thunderstorms. Fog patches dissipating late overnight.

Waves

Issued 10:30 AM EDT 27 May 2015
Today Tonight and Thursday Waves less than one half metre building to one half metre this afternoon and to one late overnight. Waves building to one and one half metres Thursday evening.

Extended Forecast

Issued 03:00 AM EDT 27 May 2015
Friday Wind south 15 knots increasing to northwest 25 late in the day.
Saturday Wind northwest 25 knots diminishing to north 15.
Sunday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 27 May 2015 Today Tonight and Thursday Special ice warning in effect. Open water except 2 tenths of rotten thick lake ice in strips and patches over the extreme eastern section near Montreal River. Unusual presence of lake ice in eastern section near Montreal River.

*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 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 27 May 2015 Today Tonight and Thursday

Ice Coverage

Special ice warning in effect.

Open water except 2 tenths of rotten thick lake ice in strips and
patches over the extreme eastern section near Montreal River.
Unusual presence of lake ice in eastern section near Montreal River.

Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 12:54 PM EDT 27 May 2015

'Strong' winds of 20 to 33 knots are 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.

Special ice warning in effect

Eastern Lake Superior

Issued 12:00 PM EDT 27 May 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 10:30 AM EDT 27 May 2015 Today Tonight and Thursday At 10:30 a.m. EDT today trough located on a line northeast-southwest
over eastern Lake Superior.
By 10:30 a.m. EDT Thursday trough located on a line
northeast-southwest over eastern Ontario.

At 10:30 a.m. EDT today high 1021 mb located over northern Manitoba.
By 10:30 a.m. EDT Thursday high 1028 mb located near James Bay.

By 10:30 a.m. EDT Thursday low 1008 mb located over North Dakota.

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