Alert archive / Michigan / Mesoscale Discussions in 2014
Mesoscale Discussion 1582
The Storm Prediction Center issued this mesoscale discussion at Aug 19, 2014, 4:51 PM EDT for 6 counties in Indiana; 19 counties in Michigan; 6 counties in Ohio. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2014, 4:51 PM EDT (20:51 UTC)
- Expired
- Aug 19, 2014, 6:15 PM EDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 31 counties
Allen County, IN, DeKalb County, IN, LaGrange County, IN, Noble County, IN, Steuben County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Eaton County, MI, Genesee County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Saint Joseph County, MI, Shiawassee County, MI, Washtenaw County, MI, Wayne County, MI, Defiance County, OH, Fulton County, OH, Henry County, OH, Lucas County, OH, Paulding County, OH, Williams County, OH
The radar
The Detroit radar (KDTX), 95 km from the middle of the area, began a volume at 20:54 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 nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 8.9 hours before the alert went out and 98 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
- 82 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 742 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:03 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Benton, Boone, Carroll, Cass and 31 more | 57 min |
| Aug 19, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | DeKalb, Elkhart, Fulton, Kosciusko, LaGrange, Marshall and 4 more | 5 hr |
| Aug 19, 3:20 PM EDT | Mesoscale Discussion | SPC | Crawford, Daviess, Dubois, Gibson, Greene, Knox and 13 more | 115 min |
| Aug 19, 6:24 PM EDT | Mesoscale Discussion | SPC | Bartholomew, Blackford, Boone, Brown, Clay, Decatur and 22 more | 96 min |
Nearby
Mesoscale Discussions in Michigan, 2014Mesoscale Discussions in Indiana, 2014Mesoscale Discussions in Ohio, 2014Every mesoscale discussion in 2014
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.