Thunderstorm moving through Lake St. Clair produced a wind gust of 36 knots.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS DTX wrote it up.
Thunderstorm moving through Lake St. Clair produced a wind gust of 36 knots.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Detroit, MI wrote its last area forecast discussion before the first event at Aug 14, 9:27 AM EST, 2 hours earlier.
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</html>Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 330 AM EDT Fri Aug 14 2020 MIZ047>049-055-150830- Midland-Bay-Huron-Sanilac- 330 AM EDT Fri Aug 14 2020 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a chance of thunderstorms on Saturday and Sunday. Isolated severe thunderstorms are possible Saturday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-150830- Lake St Clair- Michigan Waters of Lake Erie from Detroit River to North Cape MI- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay-Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- Port Austin to Harbor Beach MI-Harbor Beach to Port Sanilac MI- Port Sanilac to Port Huron MI- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 330 AM EDT Fri Aug 14 2020 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...Today and Tonight There is a chance of thunderstorms this afternoon over Lake st. Clair and especially Lake Erie. These thunderstorms are not expected to be severe, but will produce heavy rainfall and wind gusts to 40 knots. Storm motion looks to be light and variable. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a chance of thunderstorms on Saturday and Sunday. Isolated severe thunderstorms are possible both afternoons. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. MIZ053-054-060>063-068>070-075-076-082-083-150830- Saginaw-Tuscola-Shiawassee-Genesee-Lapeer-St. Clair-Livingston- Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 330 AM EDT Fri Aug 14 2020 This hazardous weather outlook is for most of southeast Michigan. .DAY ONE...Today and Tonight There is a chance of thunderstorms this afternoon, especially toward the southern Michigan border. These thunderstorms are not expected to be severe, but will produce heavy rainfall and wind gusts to 45 mph. Storm motion looks to be light and variable. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a chance of thunderstorms on Saturday and Sunday. Isolated severe thunderstorms are possible both afternoons. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today and tonight. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. SF
Special Weather Statement
National Weather Service Detroit/Pontiac MI
1220 PM EDT Fri Aug 14 2020
MIZ076-141715-
Wayne-
1220 PM EDT Fri Aug 14 2020
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WAYNE COUNTY...
At 1219 PM EDT, a strong thunderstorm was located near Belle Isle, or
near Grosse Pointe, moving west at 5 mph.
Winds in excess of 30 mph are possible with this storm.
This storm will be near...
Downtown Detroit around 1235 PM EDT.
Detroit and Dearborn around 115 PM EDT.
Other locations impacted by this storm include Highland Park,
Northeast Detroit, Harper Woods, Grosse Pointe Shores, Southwest
Detroit, Hamtramck, Grosse Pointe Woods, Grosse Pointe Park, Grosse
Pointe Farms and Melvindale.
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4236 8290 4233 8299 4232 8306 4229 8310
4229 8318 4245 8319 4245 8286
TIME...MOT...LOC 1619Z 106DEG 5KT 4239 8299
SCThe Detroit radar (KDTX), 60 km away, was scanning. The volume nearest the first event began at 16:26 UTC.
1 marine thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake St. Clair in 2020Every state in 2020This day in weather history
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 2026-09-30. Each event’s entry at NCEI: 913471.