Alert archive / Michigan / Mesoscale Discussions in 2003
Mesoscale Discussion 2402
The Storm Prediction Center issued this mesoscale discussion at Sep 24, 2003, 2:58 PM EST for 5 counties in Indiana; 20 counties in Michigan. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Sep 24, 2003, 2:58 PM EST (19:58 UTC)
- Expired
- Sep 24, 2003, 4:00 PM EST
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 25 counties
Elkhart County, IN, LaGrange County, IN, LaPorte County, IN, Saint Joseph County, IN, Steuben County, IN, Allegan County, MI, Barry 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, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Montcalm County, MI, Saint Joseph County, MI, Shiawassee County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 76 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 181 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
- 1911 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Sep 23, 11:41 PM EST | Mesoscale Discussion | SPC | Benton, Lake, Newton | 2 hr |
| Sep 24, 12:41 PM EST | Mesoscale Discussion | SPC | Benton, Carroll, Cass, Elkhart, Fountain, Fulton and 19 more | 2 hr |
| Sep 24, 1:20 PM EST | Severe Thunderstorm Watch | SPC | Adams, Allen, Cass, DeKalb, Elkhart, Fulton and 17 more | 7 hr |
| Sep 24, 3:26 PM EST | Mesoscale Discussion | SPC | Boone, Brown, Clay, Clinton, Daviess, Delaware and 28 more | 94 min |
| Sep 24, 5:37 PM EST | Mesoscale Discussion | SPC | Allen, Cass, DeKalb, Elkhart, Fulton, Huntington and 16 more | 83 min |
| Sep 24, 11:34 AM EST | Mesoscale Discussion | SPC | Antrim, Cheboygan, Clare, Crawford, Emmet, Grand Traverse and 11 more | 116 min |
Nearby
Mesoscale Discussions in Michigan, 2003Mesoscale Discussions in Indiana, 2003Every mesoscale discussion in 2003
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.