Alert archive / Ohio / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 763
The Storm Prediction Center issued this severe thunderstorm watch at Aug 19, 2004, 2:00 PM EST for 4 counties in Indiana; 21 counties in Ohio. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2004, 2:00 PM EST (19:00 UTC)
- Expired
- Aug 19, 2004, 7:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 25 counties
Franklin County, IN, Randolph County, IN, Union County, IN, Wayne County, IN, Butler County, OH, Champaign County, OH, Clark County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Perry County, OH, Pickaway County, OH, Preble County, OH, Shelby County, OH, Union County, OH
The radar
The Cincinnati radar (KILN), 76 km from the middle of the area, began a volume at 19:02 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
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:57 PM EST | Severe Thunderstorm Warning | ILN | Logan, Union | 33 min |
| Aug 19, 3:42 PM EST | Severe Thunderstorm Warning | CLE | Knox | 63 min |
| Aug 19, 4:23 PM EST | Severe Thunderstorm Warning | IND | Randolph | 37 min |
| Aug 19, 4:41 PM EST | Severe Thunderstorm Warning | ILN | Wayne | 34 min |
| Aug 19, 4:47 PM EST | Severe Thunderstorm Warning | ILN | Darke | 58 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
Detroit, MI (KDTX), launched 12:00Z, 7.0 hours before the alert went out and 295 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
- 768 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 250 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 |
|---|---|---|---|---|
| Aug 18, 7:26 PM EST | Mesoscale Discussion | SPC | Bartholomew, Benton, Boone, Brown, Clark, Clay and 29 more | 2 hr |
| Aug 19, 4:02 PM EST | Mesoscale Discussion | SPC | Delaware, Fayette, Franklin, Henry, Randolph, Union and 1 more | 88 min |
| Aug 19, 5:50 PM EST | Mesoscale Discussion | SPC | Gibson, Pike, Posey, Vanderburgh, Warrick | 85 min |
| Aug 19, 12:41 PM EST | Mesoscale Discussion | SPC | Belmont, Butler, Carroll, Champaign, Clark, Clinton and 28 more | 64 min |
| Aug 19, 1:30 PM EST | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 4 more | 6 hr |
| Aug 19, 6:26 PM EST | Mesoscale Discussion | SPC | Belmont, Carroll, Clark, Coshocton, Fairfield, Franklin and 12 more | 64 min |
Nearby
Severe Thunderstorm Watches in Ohio, 2004Severe Thunderstorm Watches in Indiana, 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.