Lake Superior, 2019Marine Thunderstorm Winds in Lake Superior, August 5, 2019
August 5, 2019 · NWS MQT · 6 events in 6 counties and zones
A cold front moving across a moist and unstable air mass produced isolated severe thunderstorms over portions of Lake Superior on the afternoon of the 5th.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 6
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.
A cold front moving across a moist and unstable air mass produced isolated severe thunderstorms over portions of Lake Superior on the afternoon of the 5th.
Marine Thunderstorm Wind, Huron Islands to Marquette Mi
- When
- August 5, 2:20 PM EST to 2:25 PM EST
- Where
- Huron Islands to Marquette Mi forecast zone, 0.11 mi NNW of Big Bay Point Light
- Measured
- 68 kt (78 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.842, -87.681
The GLOS observing station at the Big Bay Lighthouse measured thunderstorm wind gusts at 78 mph.
Marine Thunderstorm Wind, Manitou Island to Marquette Mi Beyond 5nm From Shore
- When
- August 5, 2:20 PM EST to 2:25 PM EST
- Where
- Manitou Island to Marquette Mi Beyond 5nm From Shore forecast zone, 19 mi ESE of Huron Island Light
- Measured
- 68 kt (78 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.835, -87.642
The GLOS observing station at the Big Bay Lighthouse measured thunderstorm wind gusts at 78 mph.
Marine Thunderstorm Wind, Munising to Grand Marais Mi
- When
- August 5, 4:20 PM EST to 4:25 PM EST
- Where
- Munising to Grand Marais Mi forecast zone, 0.15 mi SW of Grand Marais Light
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.679, -85.973
The GLOS station at Grand Marais Light measured a thunderstorm wind gust of 58 mph.
Marine Thunderstorm Wind, Grand Marais to Whitefish Point Mi
- When
- August 5, 4:20 PM EST to 4:25 PM EST
- Where
- Grand Marais to Whitefish Point Mi forecast zone, 0.15 mi SW of Grand Marais Light
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.679, -85.973
The GLOS station at Grand Marais Light measured a thunderstorm wind gust of 58 mph.
Marine Thunderstorm Wind, Manitou Island to Marquette Mi and W of Grand Marais Mi to Us/Canadian Border Beyond 5nm of Shore
- When
- August 5, 4:20 PM EST to 4:25 PM EST
- Where
- Manitou Island to Marquette Mi and W of Grand Marais Mi to Us/Canadian Border Beyond 5nm of Shore forecast zone, 0.74 mi NNE of Grand Marais
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.679, -85.972
The GLOS station at Grand Marais Light measured a thunderstorm wind gust of 58 mph.
Marine Thunderstorm Wind, Grand Marais Mi to Whitefish Point Mi 5nm Offshore to the Us/Canadian Border
- When
- August 5, 4:20 PM EST to 4:25 PM EST
- Where
- Grand Marais Mi to Whitefish Point Mi 5nm Offshore to the Us/Canadian Border forecast zone, 0.77 mi NNE of Grand Marais
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 46.679, -85.972
The GLOS station at Grand Marais Light measured a thunderstorm wind gust of 58 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Excessive Heat in Arizona, August 5, 20192 deaths · 4 events
- Flood and Hail in Wisconsin, August 5, 2019$1.1 million · 2 in hail · 11 events
- Hail and Damaging Winds in Minnesota, August 5, 2019$20,000 · 4 in hail · 49 events
- Tornado and Damaging Wind in Iowa, August 5, 2019EF1 · 2 events
- Damaging Wind in Iowa, August 5, 2019$30,000 · 1 event
- Damaging Winds and Lightning Strikes in Virginia, August 5 to 6, 2019$19,000 · 50 kt wind · 4 events
- Flash Flooding in Florida, August 5, 2019$20,000 · 2 events
- Flash Flood and Damaging Wind in Georgia, August 5, 2019$18,000 · 50 kt wind · 3 events
- Hail and Damaging Winds in Wisconsin, August 5, 20191.75 in hail · 12 events
- Dense Fog in Kentucky, August 5, 201910 events
- Marine Thunderstorm Wind in Lake Michigan, August 5, 2019$15,000 · 60 kt wind · 1 event
- Damaging Winds in Minnesota, August 5, 201954 kt wind · 8 events
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: 848889, 848891, 848892, 848893, 848894, 848895.