Lake St. Clair, 2020

Marine Thunderstorm Wind in Lake St. Clair, June 11, 2020

June 11, 2020 · NWS DTX · 1 event in 1 county or zone

A thunderstorm moving through Lake St. Clair produced a wind gust near 35 knots.

Where it happened

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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 DTX wrote it up.

A thunderstorm moving through Lake St. Clair produced a wind gust near 35 knots.

What forecasters said that day

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 Jun 11, 6:42 PM EST, 2 hours 23 minutes earlier.

Area forecast discussion, Jun 11, 6:42 PM EST, 2 hours 23 minutes before
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Hazardous weather outlook, Jun 11, 2:39 AM EST, 18 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
339 AM EDT Thu Jun 11 2020

MIZ047>049-053>055-060>062-068>070-075-076-082-083-120900-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
339 AM EDT Thu Jun 11 2020

This hazardous weather outlook is for most of southeast Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-120900-
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-
339 AM EDT Thu Jun 11 2020

This hazardous weather outlook is for portions of Lake Erie, Lake
Huron and Lake St Clair.

.DAY ONE...Today and Tonight

Gale Warnings and Small Craft Advisories are in effect for the
nearshore waters. Refer to the latest marine forecasts for details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

MIZ063-120900-
St. Clair-
339 AM EDT Thu Jun 11 2020

This hazardous weather outlook is for St. Clair County.

.DAY ONE...Today and Tonight

A lakeshore flood warning is in effect today. Refer to the Lakeshore
Hazard Message for details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.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

In the hours before

Special weather statement, Jun 11, 8:17 PM EST, 48 minutes before
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Special weather statement, Jun 11, 8:23 PM EST, 42 minutes before
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Special weather statement, Jun 11, 8:37 PM EST, 28 minutes before
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Special weather statement, Jun 11, 8:41 PM EST, 24 minutes before
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Special weather statement, Jun 11, 8:48 PM EST, 17 minutes before
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Special weather statement, Jun 11, 9:01 PM EST, 4 minutes before
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The radar

The Detroit radar (KDTX), 55 km away, was scanning. The volume nearest the first event began at 02:04 UTC.

Open the radar archive at this moment

Event by event

1 marine thunderstorm wind. Local standard time, as filed.

Marine Thunderstorm Wind, Lake St Clair (U.S. Portion)

When
June 11, 9:05 PM EST
Where
Lake St Clair (U.S. Portion) forecast zone, 1.98 mi NNW of Metropolitan Beach
Measured
34 kt (39 mph) measured gust
Reported by
ASOS
Coordinates
42.607, -82.812

What these are

Marine Thunderstorm Wind
Thunderstorm winds of 34 knots or more over coastal or lake waters.

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

The same day elsewhere

More

Every storm in Lake St. Clair in 2020Every state in 2020This 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: 900906.