Lake Superior, 2017

Marine High Wind in Lake Superior, December 19, 2017

December 19, 2017 · NWS MQT · 3 events in 3 counties and zones

West-northwesterly storm force winds were observed across eastern Lake Superior during the afternoon and evening hours on December 19th, 2017.

Where it happened

Every event with a place to put it. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MQT wrote it up.

West-northwesterly storm force winds were observed across eastern Lake Superior during the afternoon and evening hours on December 19th, 2017.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

3 marine high wind. Local standard time, as filed.

Marine High Wind, Manitou Island to Marquette Mi and W of Grand Marais Mi to Us/Canadian Border Beyond 5nm of Shore

When
December 19, 2:00 PM EST to 2:10 PM EST
Where
Manitou Island to Marquette Mi and W of Grand Marais Mi to Us/Canadian Border Beyond 5nm of Shore forecast zone, Stannard Rock Light
Measured
53 kt (61 mph) measured gust
Reported by
C-MAN Station
Coordinates
47.180, -87.230

Wind gust was recorded at the Stannard Rock platform. Peak sustained wind during the event was 49 knots and the peak wind gust during the event was 56 knots.

Marine High Wind, Grand Marais Mi to Whitefish Point Mi 5nm Offshore to the Us/Canadian Border

When
December 19, 2:50 PM EST to 3:00 PM EST
Where
Grand Marais Mi to Whitefish Point Mi 5nm Offshore to the Us/Canadian Border forecast zone, Grand Marais
Measured
49 kt (56 mph) measured gust
Reported by
C-MAN Station
Coordinates
46.670, -85.980

Wind gust was recorded at the Grand Marais marine site, GRMM4. The peak sustained wind from this event was 43 knots and the peak wind gust was 50 knots.

Marine High Wind, Manitou Island to Marquette Mi Beyond 5nm From Shore

When
December 19, 3:20 PM EST to 3:30 PM EST
Where
Manitou Island to Marquette Mi Beyond 5nm From Shore forecast zone, 10.53 mi N of Marquette
Measured
48 kt (55 mph) measured gust
Reported by
C-MAN Station
Coordinates
46.702, -87.399

Storm force wind gusts were observed at Granite Island, station GRIM4. The peak sustained wind during the event was 40.6 knots and the peak wind gust during the event was 50 knots.

What these are

Marine High Wind
Sustained non-thunderstorm winds of 48 knots or more over water.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Lake Superior in 2017Every state in 2017This day in weather history

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 729655, 729656, 729654.