Alert archive / Indiana / Mesoscale Discussions in 2004
Mesoscale Discussion 2108
The Storm Prediction Center issued this mesoscale discussion at Aug 25, 2004, 3:38 PM EST for 30 counties in Indiana; 17 counties in Michigan; Defiance County, Williams County, Ohio. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2004, 3:38 PM EST (20:38 UTC)
- Expired
- Aug 25, 2004, 5:45 PM EST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 49 counties
Adams County, IN, Allen County, IN, Blackford County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley 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, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lenawee County, MI, Saint Joseph County, MI, Van Buren County, MI, Defiance County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 47 km from the middle of the area, began a volume at 20:39 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, 8.6 hours before the alert went out and 206 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
- 103 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 882 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- -6 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 |
|---|---|---|---|---|
| Aug 25, 6:01 PM EST | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Huntington, Kosciusko, LaGrange and 4 more | 89 min |
Nearby
Mesoscale Discussions in Indiana, 2004Mesoscale Discussions in Michigan, 2004Mesoscale Discussions in Ohio, 2004Every mesoscale discussion in 2004
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.