Alert archive / Michigan / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 78, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Sep 13, 2019, 3:51 PM EDT for Monroe County, Wayne County, Michigan. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 13, 2019, 3:51 PM EDT (19:51 UTC)
- Expired
- Sep 13, 2019, 4:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Monroe County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 67 km from the middle of the area, began a volume at 19:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 13, 2:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.9 hours before the alert went out and 69 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 95 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 362 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Sep 13, 3:47 PM EDT, 4 minutes earlier.
Area forecast discussion, Sep 13, 3:47 PM EDT, 4 minutes before
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</html>Hazardous weather outlook, Sep 13, 11:35 AM EDT, 4 hours 16 minutes before
Hazardous Weather Outlook...CORRECTED National Weather Service Detroit/Pontiac MI 1135 AM EDT Fri Sep 13 2019 MIZ047>049-053>055-060>063-068>070-075-076-082-083-140915- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 1135 AM EDT Fri Sep 13 2019 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...This afternoon and Tonight There is a slight risk for severe thunderstorms later this afternoon into early this evening. The most likely time window for this severe weather continues to focus between 3 and 7 PM EDT. The main threats will be damaging wind gusts to 60 mph and large hail. The potential also exists for isolated tornado development. Thunderstorm movement is expected to be to the northeast at near 50 mph. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Dispatchers...Please notify your emergency manager immediately. Spotter activation may be needed late this afternoon. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-140915- 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- 1135 AM EDT Fri Sep 13 2019 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...This afternoon and Tonight Small Craft Advisories remain in effect for Saginaw Bay and the nearshore waters from Port Austin to Port Sanilac through this evening. There is a slight risk for severe thunderstorms later this afternoon into early this evening. The most likely time window for this severe weather continues to focus between 3 and 7 PM EDT. The main threats will be wind gusts to 50 knots and large hail. The potential also exists for isolated tornado development. Thunderstorm movement is expected to be to the northeast at near 45 knots. .DAYS TWO THROUGH SEVEN...Saturday through Thursday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Dispatchers...Please notify your emergency manager immediately. Spotter activation may be needed late this afternoon. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. CB/DG
In the hours before
Local storm report, Sep 13, 3:14 PM EDT, 37 minutes before
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</html>Local storm report, Sep 13, 3:20 PM EDT, 31 minutes before
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</html>Special weather statement, Sep 13, 3:20 PM EDT, 31 minutes before
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</html>Local storm report, Sep 13, 3:41 PM EDT, 10 minutes before
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</html>Local storm report, Sep 13, 3:43 PM EDT, 8 minutes before
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</html>Local storm report, Sep 13, 3:48 PM EDT, 3 minutes before
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</html>The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 2:35 PM EDT | Special Weather Statement | DTX | Lenawee | 40 min |
| Sep 13, 2:50 PM EDT | Special Weather Statement | DTX | Washtenaw | 40 min |
| Sep 13, 2:57 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee, Washtenaw | 35 min |
| Sep 13, 3:16 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Oakland | 59 min |
| Sep 13, 3:20 PM EDT | Special Weather Statement | DTX | Monroe, Wayne | 55 min |
| Sep 13, 3:46 PM EDT | Special Marine Warning | DTX | 89 min | |
| Sep 13, 4:06 PM EDT | Special Weather Statement | DTX | Macomb, Saint Clair | 54 min |
| Sep 13, 4:40 PM EDT | Special Weather Statement | DTX | Sanilac | 65 min |
| Sep 13, 4:56 PM EDT | Special Marine Warning | DTX | 94 min | |
| Sep 13, 5:14 PM EDT | Special Marine Warning | DTX | 50 min | |
| Sep 13, 5:45 PM EDT | Special Weather Statement | DTX | Macomb, Oakland | 60 min |
| Sep 13, 6:20 PM EDT | Special Weather Statement | DTX | Saint Clair | 55 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.