Western Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EST 21 February 2017

Today Tonight and Wednesday

Wind west 30 knots diminishing to southwest 15 near noon and to variable 10 this evening. Wind increasing to northeast 15 early Wednesday morning then backing to north 20 Wednesday evening.

Chance of showers beginning early Wednesday morning changing to chance of flurries Wednesday evening.

Waves

Issued 10:30 AM EST 21 February 2017
Today Tonight and Wednesday Waves 2 metres subsiding to one half metre this afternoon then building to one Wednesday evening.

Extended Forecast

Issued 03:00 AM EST 21 February 2017
Thursday Wind north 15 knots.
Friday Wind north 15 knots increasing to northeast 25.
Saturday Wind northeast 30 knots increasing to northwest 35.

Ice Forecast*

Issued 12:00 PM EST 21 February 2017 Today Tonight and Wednesday Open water except 5 tenths of thin lake ice including 1 tenth of medium lake ice along parts the south shore and Thunder Bay. Consolidated thick lake ice in Black Bay, Nipigon Bay and Chequamegon Bay.

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

 

[ Canadian Ice Service ]

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

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
Legend:
buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 21 February 2017 Today Tonight and Wednesday

Ice Coverage

Open water except 5 tenths of thin lake ice including 1 tenth of
medium lake ice along parts the south shore and Thunder Bay.
Consolidated thick lake ice in Black Bay, Nipigon Bay and
Chequamegon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 21 February 2017 Today Tonight and Wednesday At 10:30 a.m. EST today ridge located on a line north-south
over Maine.
By 10:30 a.m. EST Wednesday ridge located off the East Coast of
the U.S.

At 10:30 a.m. EST today low 985 mb located south of Hudson Bay.
By 10:30 a.m. EST Wednesday low 992 mb located over eastern
Hudson Bay.

At 10:30 a.m. EST today departing trough located from the low
to Illinois.

At 10:30 a.m. EST today low 1004 mb located over southern
Saskatchewan.
By 10:30 a.m. EST Wednesday low 1000 mb located over Lake Superior.

Great Lakes - Lake Superior Area

Another Region

What we are doing

Date modified: