Eastern Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EDT 03 August 2015

Today Tonight and Tuesday

Wind northwest 10 knots increasing to west 15 near noon then diminishing to northwest 10 near midnight. Wind increasing to northwest 15 near noon Tuesday.

Chance of showers today tonight and Tuesday morning.

Waves

Issued 03:00 AM EDT 03 August 2015
Today Tonight and Tuesday Waves one half metre or less building to one Tuesday afternoon.

Extended Forecast

Issued 03:00 AM EDT 03 August 2015
Wednesday Wind light.
Thursday Wind light.
Friday Wind light.

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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 EDT 1 June 2015 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 3 August 2015 Today Tonight and Tuesday At 3:00 a.m. EDT today low 998 mb located southeast of James Bay.
By 3:00 a.m. EDT Tuesday low 998 mb located east of James Bay.

At 3:00 a.m. EDT today trough located from the low to North Channel
then to Iowa.
By 3:00 a.m. EDT Tuesday trough located on a line
northeast-southwest over the St. Lawrence River.

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