Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EST 23 November 2017

Tonight and Friday.

Gale warning in effect.

Wind northwest 15 knots becoming south 15 this evening then increasing to southwest 25 near midnight. Wind increasing to northwest 35 Friday evening.

Chance of flurries changing to periods of snow this evening then to periods of rain late overnight. Chance of showers Friday evening.

Waves

Issued 06:30 PM EST 23 November 2017
Tonight and Friday. Waves one and one half metres subsiding to one half metre this evening then building to 2 late overnight. Waves building to 3 Friday evening.

Extended Forecast

Issued 06:30 PM EST 23 November 2017
Saturday Wind northwest 35 knots diminishing to northwest 25 in the morning.
Sunday Wind southwest 25 knots veering to northwest 25.
Monday Wind north 20 knots becoming south 20 late in the day.

Ice Forecast*

Issued 12:00 PM EST 23 November 2017 Today Tonight and Friday Ice free except 8 tenths of new lake ice including 2 tenths of thin lake ice in Black Bay and 2 tenths of new ice in Nipigon 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 23 November 2017 Today Tonight and Friday

Ice Coverage

Ice free except 8 tenths of new lake ice including 2 tenths of thin
lake ice in Black Bay and 2 tenths of new ice in Nipigon Bay.

Warnings

Warnings (In effect)

Gale warning in effect

Lake Superior

Issued 6:30 PM EST 23 November 2017

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 23 November 2017 Tonight and Friday At 6:30 p.m. EST tonight departing ridge located on a line
northeast-southwest over West Virginia.

At 6:30 p.m. EST tonight departing trough located on a line
northeast-southwest over northeastern Ontario.

At 6:30 p.m. EST tonight warm front located on a line
northwest-southeast over northwestern Ontario.
By 6:30 p.m. EST Friday warm front located on a line east-west
over central Quebec.

At 6:30 p.m. EST tonight cold front located on a line
northeast-southwest over central Alberta.
By 6:30 p.m. EST Friday cold front located on a line
northeast-southwest over eastern Lake Superior.

Great Lakes - Lake Superior Area

Another Region

What we are doing

Date modified: