Alert archive / Michigan / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 46, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 12, 2023, 10:52 PM EDT for Barry County, Eaton County, Michigan. It was in force for 53 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
- Jul 12, 2023, 10:52 PM EDT (02:52 UTC)
- Expired
- Jul 12, 2023, 11:45 PM EDT
- In force
- 53 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Barry County, MI, Eaton County, MI
The radar
The Grand Rapids radar (KGRR), 51 km from the middle of the area, began a volume at 02:55 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 |
|---|---|---|---|
| Jul 12, 8:55 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.9 hours before the alert went out and 135 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
- 26 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 578 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 9:40 PM EDT, 1 hour 12 minutes earlier.
Area forecast discussion, Jul 12, 9:40 PM EDT, 1 hour 12 minutes before
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</html>Hazardous weather outlook, Jul 12, 7:40 PM EDT, 3 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Grand Rapids MI 740 PM EDT Wed Jul 12 2023 LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074- 130815- St Joseph to South Haven MI-South Haven to Holland MI- Holland to Grand Haven MI-Grand Haven to Whitehall MI- Whitehall to Pentwater MI-Pentwater to Manistee MI-Mason-Lake- Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-Montcalm- Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-Ingham- Van Buren-Kalamazoo-Calhoun-Jackson- 740 PM EDT Wed Jul 12 2023 This hazardous weather outlook is for portions of southwest Lower Michigan. .DAY ONE...Tonight There is a slight risk of severe weather tonight mainly near and south of Interstate 96. The main threat will be downburst winds and heavy rains. A tornado risk also exists, especially near and south of Interstate 94. The severe weather threat will end shortly after Midnight. Flooding is possible across the southern half of Lower Michigan tonight. Urban and poor drainage areas along with small streams are at most risk for impacts. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Thunderstorms are expected Thursday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed tonight.
In the hours before
Local storm report, Jul 12, 9:23 PM EDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service Grand Rapids MI
923 PM EDT Wed Jul 12 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0920 PM Rain 2 N Macatawa 42.80N 86.20W
07/12/2023 M1.50 inch Ottawa MI Public
&&
ThomasLocal storm report, Jul 12, 9:47 PM EDT, 1 hour 5 minutes before
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</html>Local storm report, Jul 12, 10:12 PM EDT, 40 minutes before
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</html>Local storm report, Jul 12, 10:17 PM EDT, 35 minutes before
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</html>Local storm report, Jul 12, 10:21 PM EDT, 31 minutes before
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</html>Local storm report, Jul 12, 10:49 PM EDT, 3 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 8:41 PM EDT | Areal Flood Advisory | GRR | Allegan, Barry, Clinton, Eaton, Gratiot, Ingham and 6 more | 3 hr |
| Jul 12, 8:43 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Van Buren | 92 min |
| Jul 12, 9:28 PM EDT | Tornado Warning | GRR | Van Buren | 47 min |
| Jul 12, 9:59 PM EDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 69 min |
| Jul 12, 10:37 PM EDT | Areal Flood Warning | GRR | Kent | 6 hr |
| Jul 12, 11:03 PM EDT | Severe Thunderstorm Warning | GRR | Ionia | 46 min |
| Jul 12, 11:23 PM EDT | Areal Flood Warning | GRR | Clinton, Eaton, Ingham, Ionia | 5 hr |
| Jul 13, 12:04 AM EDT | Severe Thunderstorm Warning | GRR | Clinton, Ingham | 41 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2023Every severe thunderstorm warning in 2023
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.