Alert archive / Michigan / Mesoscale Discussions in 2012
Mesoscale Discussion 1372
The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2012, 3:24 AM EDT for 30 counties in Michigan. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2012, 3:24 AM EDT (07:24 UTC)
- Expired
- Jul 3, 2012, 5:00 AM EDT
- In force
- 96 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 30 counties
Antrim County, MI, Bay County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Chippewa County, MI, Clare County, MI, Crawford County, MI, Emmet County, MI, Gladwin County, MI, Grand Traverse County, MI, Gratiot County, MI, Isabella County, MI, Kalkaska County, MI, Lake County, MI, Leelanau County, MI, Mackinac County, MI, Manistee County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Montmorency County, MI, Newaygo County, MI, Ogemaw County, MI, Osceola County, MI, Oscoda County, MI, Otsego County, MI, Roscommon County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 35 km from the middle of the area, began a volume at 07:23 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
Alpena, MI (KAPX), launched 00:00Z, 7.4 hours before the alert went out and 216 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
- 38 J/kg
- Mixed-layer CIN
- -104 J/kg
- Mixed-layer LCL
- 2191 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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 |
|---|---|---|---|---|
| Jul 2, 10:17 PM EDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw and 3 more | 118 min |
| Jul 2, 11:13 PM EDT | Severe Thunderstorm Watch | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw and 3 more | 4 hr |
| Jul 3, 12:17 AM EDT | Mesoscale Discussion | SPC | Alger, Baraga, Delta, Dickinson, Gogebic, Houghton and 6 more | 88 min |
| Jul 3, 4:34 PM EDT | Mesoscale Discussion | SPC | Genesee, Lapeer, Lenawee, Livingston, Macomb, Monroe and 4 more | 86 min |
Nearby
Mesoscale Discussions in Michigan, 2012Every mesoscale discussion in 2012
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.