Alert archive / Ohio / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 246
The Storm Prediction Center issued this severe thunderstorm watch at May 11, 2005, 12:25 PM EST for 15 counties in Indiana; 47 counties in Ohio. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 11, 2005, 12:25 PM EST (17:25 UTC)
- Expired
- May 11, 2005, 7:00 PM EST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 62 counties
Adams County, IN, Blackford County, IN, Delaware County, IN, Fayette County, IN, Hancock County, IN, Henry County, IN, Jay County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Union County, IN, Wayne County, IN, Allen County, OH, Ashland County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Coshocton County, OH, Crawford County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Paulding County, OH, Pickaway County, OH, Portage County, OH, Preble County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Union County, OH, Van Wert County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH
The radar
The Cincinnati radar (KILN), 99 km from the middle of the area, began a volume at 17:27 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
23 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 2:12 PM EST | Severe Thunderstorm Warning | IWX | Jay | 25 min |
| May 11, 2:31 PM EST | Severe Thunderstorm Warning | ILN | Mercer | 15 min |
| May 11, 3:00 PM EST | Severe Thunderstorm Warning | IND | Delaware, Madison | 60 min |
| May 11, 3:15 PM EST | Severe Thunderstorm Warning | IWX | Blackford, Jay | 60 min |
| May 11, 3:27 PM EST | Severe Thunderstorm Warning | IWX | Adams | 48 min |
| May 11, 3:51 PM EST | Severe Thunderstorm Warning | IND | Randolph | 39 min |
| May 11, 4:00 PM EST | Severe Thunderstorm Warning | IND | Delaware | 45 min |
| May 11, 4:14 PM EST | Severe Thunderstorm Warning | IWX | Jay | 37 min |
| May 11, 4:19 PM EST | Severe Thunderstorm Warning | IND | Madison | 31 min |
| May 11, 4:23 PM EST | Severe Thunderstorm Warning | IND | Randolph | 52 min |
| May 11, 4:30 PM EST | Severe Thunderstorm Warning | IWX | Putnam | 45 min |
| May 11, 5:05 PM EST | Severe Thunderstorm Warning | IND | Henry, Madison | 55 min |
| May 11, 5:07 PM EST | Severe Thunderstorm Warning | IND | Randolph | 38 min |
| May 11, 5:09 PM EST | Severe Thunderstorm Warning | ILN | Miami | 40 min |
| May 11, 5:26 PM EST | Severe Thunderstorm Warning | IND | Hancock | 49 min |
| May 11, 5:32 PM EST | Severe Thunderstorm Warning | ILN | Darke | 58 min |
| May 11, 5:38 PM EST | Flash Flood Warning | IND | Delaware, Madison | 2 hr |
| May 11, 5:41 PM EST | Severe Thunderstorm Warning | IND | Delaware, Madison | 62 min |
| May 11, 5:51 PM EST | Severe Thunderstorm Warning | ILN | Wayne | 39 min |
| May 11, 5:54 PM EST | Severe Thunderstorm Warning | IND | Henry | 36 min |
| May 11, 5:58 PM EST | Severe Thunderstorm Warning | IWX | Blackford | 47 min |
| May 11, 6:08 PM EST | Severe Thunderstorm Warning | IND | Rush, Shelby | 67 min |
| May 11, 6:13 PM EST | Severe Thunderstorm Warning | IND | Hancock | 22 min |
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, 5.4 hours before the alert went out and 99 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
- 358 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1333 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 87 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 11, 11:54 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 28 more | 2 hr |
| May 11, 3:21 PM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Boone, Carroll, Clay and 32 more | 114 min |
| May 11, 3:40 PM EST | Severe Thunderstorm Watch | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Clay and 33 more | 5 hr |
| May 11, 6:28 PM EST | Mesoscale Discussion | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Clay and 34 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 2005Severe Thunderstorm Watches in Indiana, 2005Every severe thunderstorm watch 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.