Alert archive / Michigan / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 76, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Oct 23, 2020, 2:28 PM EDT for Lenawee County, Monroe County, Michigan. It was in force for 31 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
- Oct 23, 2020, 2:28 PM EDT (18:28 UTC)
- Expired
- Oct 23, 2020, 2:59 PM EDT
- In force
- 31 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lenawee County, MI, Monroe County, MI
The radar
The Detroit radar (KDTX), 92 km from the middle of the area, began a volume at 18:28 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 |
|---|---|---|---|
| Oct 23, 1:56 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.5 hours before the alert went out and 95 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
- 268 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 783 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 22, 10:04 PM EDT | Lakeshore Flood Statement | DTX | Macomb, Saint Clair | 20 hr |
| Oct 23, 12:44 PM EDT | Severe Thunderstorm Warning | DTX | Midland, Saginaw, Shiawassee | 61 min |
| Oct 23, 1:06 PM EDT | Special Marine Warning | DTX | 54 min | |
| Oct 23, 1:09 PM EDT | Severe Thunderstorm Warning | DTX | Bay | 51 min |
| Oct 23, 1:30 PM EDT | Severe Thunderstorm Warning | DTX | Huron, Tuscola | 45 min |
| Oct 23, 1:38 PM EDT | Special Marine Warning | DTX | 48 min | |
| Oct 23, 1:54 PM EDT | Severe Thunderstorm Warning | DTX | Shiawassee | 51 min |
| Oct 23, 1:56 PM EDT | Severe Thunderstorm Warning | DTX | Huron | 49 min |
| Oct 23, 1:58 PM EDT | Special Marine Warning | DTX | 2 hr | |
| Oct 23, 2:14 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 61 min |
| Oct 23, 2:21 PM EDT | Severe Thunderstorm Warning | DTX | Genesee | 54 min |
| Oct 23, 2:39 PM EDT | Severe Thunderstorm Warning | DTX | Tuscola | 39 min |
| Oct 23, 2:47 PM EDT | Severe Thunderstorm Warning | DTX | Lapeer | 58 min |
| Oct 23, 3:00 PM EDT | Special Marine Warning | DTX | 2 hr | |
| Oct 23, 3:01 PM EDT | Special Weather Statement | DTX | Oakland | 74 min |
| Oct 23, 3:04 PM EDT | Severe Thunderstorm Warning | DTX | Sanilac | 56 min |
| Oct 23, 3:09 PM EDT | Special Marine Warning | DTX | 2 hr | |
| Oct 23, 3:09 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee | 81 min |
| Oct 23, 4:00 PM EDT | Severe Thunderstorm Warning | DTX | Monroe, Washtenaw, Wayne | 58 min |
| Oct 23, 4:43 PM EDT | Special Weather Statement | DTX | Macomb, Saint Clair | 47 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2020Every severe thunderstorm warning in 2020
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.