Alert archive / Ohio / Mesoscale Discussions in 2005
Mesoscale Discussion 609
The Storm Prediction Center issued this mesoscale discussion at Apr 20, 2005, 3:19 PM EST for 13 counties in Indiana; 18 counties in Ohio. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Apr 20, 2005, 3:19 PM EST (20:19 UTC)
- Expired
- Apr 20, 2005, 4:45 PM EST
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 31 counties
Adams County, IN, Blackford County, IN, Carroll County, IN, Cass County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Miami County, IN, Tippecanoe County, IN, Wabash County, IN, Wells County, IN, White County, IN, Allen County, OH, Ashland County, OH, Auglaize County, OH, Crawford County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Huron County, OH, Medina County, OH, Mercer County, OH, Portage County, OH, Richland County, OH, Seneca County, OH, Summit County, OH, Trumbull County, OH, Van Wert County, OH, Wayne County, OH, Wyandot County, OH
The radar
The Northern Indiana radar (KIWX), 153 km from the middle of the area, began a volume at 20:23 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.3 hours before the alert went out and 172 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
- 1989 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 12 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 |
|---|---|---|---|---|
| Apr 20, 12:21 PM EST | Mesoscale Discussion | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 24 more | 114 min |
| Apr 20, 12:50 PM EST | Severe Thunderstorm Watch | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 26 more | 6 hr |
| Apr 20, 5:37 PM EST | Mesoscale Discussion | SPC | Adams, Benton, Blackford, Boone, Carroll, Cass and 20 more | 83 min |
| Apr 20, 2:05 PM EST | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Coshocton, Cuyahoga, Geauga and 11 more | 85 min |
| Apr 20, 2:35 PM EST | Severe Thunderstorm Watch | SPC | Carroll, Columbiana, Coshocton, Geauga, Harrison, Holmes and 9 more | 4 hr |
Nearby
Mesoscale Discussions in Ohio, 2005Mesoscale Discussions in Indiana, 2005Every mesoscale discussion in 2005
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.