Alert archive / Indiana / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 154
The Storm Prediction Center issued this severe thunderstorm watch at May 7, 2004, 8:30 AM EST for 32 counties in Indiana; 30 counties in Ohio. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 7, 2004, 8:30 AM EST (13:30 UTC)
- Expired
- May 7, 2004, 2:00 PM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 62 counties
Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Delaware County, IN, Fayette County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Pulaski County, IN, Randolph County, IN, Rush County, IN, Starke County, IN, Tipton County, IN, Union County, IN, Wabash County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Allen County, OH, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hardin County, OH, Highland County, OH, Jackson County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Warren County, OH
The radar
The Northern Indiana radar (KIWX), 114 km from the middle of the area, began a volume at 13:33 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.
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 8:34 AM EST | Severe Thunderstorm Warning | IWX | Cass | 41 min |
| May 7, 8:54 AM EST | Severe Thunderstorm Warning | IWX | Miami | 51 min |
| May 7, 9:09 AM EST | Severe Thunderstorm Warning | IWX | Grant, Wabash | 51 min |
| May 7, 9:10 AM EST | Severe Thunderstorm Warning | IWX | Grant, Wabash | 50 min |
| May 7, 9:27 AM EST | Severe Thunderstorm Warning | IWX | Huntington | 48 min |
| May 7, 9:30 AM EST | Severe Thunderstorm Warning | IWX | Allen | 45 min |
| May 7, 9:42 AM EST | Severe Thunderstorm Warning | IWX | Van Wert | 48 min |
| May 7, 9:46 AM EST | Severe Thunderstorm Warning | ILN | Hardin | 44 min |
| May 7, 10:24 AM EST | Severe Thunderstorm Warning | IWX | Allen | 51 min |
| May 7, 10:45 AM EST | Severe Thunderstorm Warning | ILN | Hardin | 30 min |
| May 7, 11:11 AM EST | Severe Thunderstorm Warning | CLE | Marion | 64 min |
| May 7, 11:24 AM EST | Flash Flood Warning | CLE | Marion | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 1.5 hours before the alert went out and 156 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
- 2 J/kg
- Mixed-layer CIN
- -504 J/kg
- Mixed-layer LCL
- 1488 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 8:37 PM EST | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Kosciusko, LaGrange, Noble and 2 more | 83 min |
| May 6, 9:10 PM EST | Severe Thunderstorm Watch | SPC | Adams, Allen, Benton, Cass, DeKalb, Elkhart and 20 more | 5 hr |
| May 7, 6:38 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 30 more | 97 min |
| May 7, 8:30 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Carroll, Cass, Clinton and 17 more | 90 min |
| May 6, 10:05 PM EST | Mesoscale Discussion | SPC | Ashland, Ashtabula, Cuyahoga, Geauga, Lake, Lorain and 7 more | 85 min |
| May 6, 10:20 PM EST | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Carroll, Columbiana, Crawford, Cuyahoga and 27 more | 5 hr |
| May 7, 2:13 AM EST | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Cuyahoga, Erie, Geauga and 15 more | 62 min |
| May 7, 9:29 AM EST | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Coshocton, Guernsey, Harrison and 9 more | 91 min |
| May 7, 10:00 AM EST | Severe Thunderstorm Watch | SPC | Athens, Belmont, Coshocton, Gallia, Guernsey, Harrison and 10 more | 6 hr |
| May 7, 11:49 AM EST | Mesoscale Discussion | SPC | Athens, Champaign, Clark, Clinton, Delaware, Fairfield and 24 more | 86 min |
| May 7, 12:49 PM EST | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Guernsey, Harrison, Hocking and 7 more | 86 min |
Nearby
Severe Thunderstorm Watches in Indiana, 2004Severe Thunderstorm Watches in Ohio, 2004Every severe thunderstorm watch 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.