Alert archive / Michigan / Mesoscale Discussions in 2022
Mesoscale Discussion 556
The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2022, 2:47 PM EDT for 6 counties in Indiana; 26 counties in Michigan. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Apr 24, 2022, 2:47 PM EDT (18:47 UTC)
- Expired
- Apr 24, 2022, 4:15 PM EDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 40%
All 32 counties
Elkhart County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Saint Joseph County, IN, Starke County, IN, Allegan County, MI, Barry County, MI, Bay County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gratiot County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Livingston County, MI, Midland County, MI, Montcalm County, MI, Saginaw County, MI, Saint Joseph County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 48 km from the middle of the area, began a volume at 18:49 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 nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.8 hours before the alert went out and 146 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | Benton, Jasper, Newton | 6 hr |
| Apr 24, 3:58 PM EDT | Mesoscale Discussion | SPC | Benton, Jasper, Newton, Warren | 92 min |
Nearby
Mesoscale Discussions in Michigan, 2022Mesoscale Discussions in Indiana, 2022Every mesoscale discussion in 2022
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.