Alert archive / Ohio / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 203
The Storm Prediction Center issued this severe thunderstorm watch at May 1, 2003, 6:55 PM EDT for 30 counties in Ohio. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- May 1, 2003, 6:55 PM EDT (22:55 UTC)
- Expired
- May 1, 2003, 11:00 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 30 counties
Ashland County, OH, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Crawford County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hardin County, OH, Knox County, OH, Licking 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, Preble County, OH, Richland County, OH, Shelby County, OH, Union County, OH, Warren County, OH, Wyandot County, OH
The radar
The Cincinnati radar (KILN), 90 km from the middle of the area, began a volume at 22:54 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
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 7:05 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 55 min |
| May 1, 7:22 PM EDT | Severe Thunderstorm Warning | ILN | Butler | 23 min |
| May 1, 7:27 PM EDT | Tornado Warning | ILN | Darke | 33 min |
| May 1, 7:39 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize | 36 min |
| May 1, 7:46 PM EDT | Severe Thunderstorm Warning | ILN | Mercer | 44 min |
| May 1, 8:08 PM EDT | Severe Thunderstorm Warning | ILN | Auglaize | 67 min |
| May 1, 8:33 PM EDT | Severe Thunderstorm Warning | ILN | Champaign, Logan | 42 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, 10.9 hours before the alert went out and 89 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
- 354 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 101 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 |
|---|---|---|---|---|
| Apr 30, 9:48 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Crawford, Cuyahoga, Defiance and 25 more | 87 min |
| May 1, 12:41 PM EDT | Mesoscale Discussion | SPC | Columbiana, Mahoning, Portage, Trumbull | 3 hr |
| May 1, 1:09 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Champaign, Crawford, Darke and 24 more | 3 hr |
| May 1, 1:50 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Ashland, Ashtabula, Auglaize, Belmont, Butler and 56 more | 5 hr |
| May 1, 3:35 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Clermont, Highland, Jackson, Pike and 2 more | 5 hr |
| May 1, 4:10 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Auglaize, Belmont, Butler, Carroll and 51 more | 95 min |
| May 1, 6:11 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Hamilton, Highland, Jackson and 4 more | 94 min |
| May 1, 7:10 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Clermont, Hamilton, Highland, Jackson and 4 more | 95 min |
Nearby
Severe Thunderstorm Watches in Ohio, 2003Every severe thunderstorm watch 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.