Alert archive / Ohio / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 943
The Storm Prediction Center issued this severe thunderstorm watch at Nov 12, 2003, 1:50 PM EST for 10 counties in Michigan; 36 counties in Ohio. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 12, 2003, 1:50 PM EST (18:50 UTC)
- Expired
- Nov 12, 2003, 7:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Ashland County, OH, Ashtabula County, OH, Carroll County, OH, Columbiana County, OH, Crawford County, OH, Cuyahoga County, OH, Defiance County, OH, Erie County, OH, Fulton County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Huron County, OH, Lake County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Ottawa County, OH, Paulding County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Van Wert County, OH, Wayne County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH
The radar
The Detroit radar (KDTX), 97 km from the middle of the area, began a volume at 18:51 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
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 12, 4:22 PM EST | Severe Thunderstorm Warning | DTX | Lenawee | 38 min |
| Nov 12, 4:26 PM EST | Severe Thunderstorm Warning | IWX | Putnam | 34 min |
| Nov 12, 4:38 PM EST | Severe Thunderstorm Warning | IWX | Allen | 37 min |
| Nov 12, 4:40 PM EST | Severe Thunderstorm Warning | CLE | Hancock, Wood | 65 min |
| Nov 12, 4:50 PM EST | Severe Thunderstorm Warning | DTX | Monroe | 40 min |
| Nov 12, 5:00 PM EST | Severe Thunderstorm Warning | CLE | Sandusky, Seneca | 45 min |
| Nov 12, 5:08 PM EST | Severe Thunderstorm Warning | CLE | Wyandot | 52 min |
| Nov 12, 5:23 PM EST | Severe Thunderstorm Warning | CLE | Crawford, Marion | 67 min |
| Nov 12, 5:40 PM EST | Severe Thunderstorm Warning | CLE | Erie, Huron | 65 min |
| Nov 12, 5:49 PM EST | Severe Thunderstorm Warning | CLE | Morrow, Richland | 56 min |
| Nov 12, 6:00 PM EST | Tornado Warning | CLE | Crawford, Morrow | 30 min |
| Nov 12, 6:09 PM EST | Tornado Warning | CLE | Richland | 36 min |
| Nov 12, 6:35 PM EST | Severe Thunderstorm Warning | CLE | Ashland | 25 min |
| Nov 12, 6:39 PM EST | Severe Thunderstorm Warning | CLE | Wayne | 51 min |
| Nov 12, 6:45 PM EST | Tornado Warning | CLE | Wayne | 45 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, 6.8 hours before the alert went out and 98 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
- 1748 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 182 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 |
|---|---|---|---|---|
| Nov 12, 12:45 PM EST | Mesoscale Discussion | SPC | Branch, Calhoun, Eaton, Genesee, Hillsdale, Ingham and 14 more | 3 hr |
| Nov 12, 3:26 PM EST | Mesoscale Discussion | SPC | Genesee, Hillsdale, Jackson, Lenawee, Livingston, Macomb and 4 more | 2 hr |
| Nov 12, 4:40 PM EST | Tornado Watch | SPC | Monroe, Washtenaw | 5 hr |
| Nov 12, 6:13 PM EST | Mesoscale Discussion | SPC | Monroe | 2 hr |
| Nov 12, 2:36 PM EST | Mesoscale Discussion | SPC | Adams, Brown, Butler, Champaign, Clark, Clermont and 26 more | 2 hr |
| Nov 12, 3:20 PM EST | Tornado Watch | SPC | Athens, Auglaize, Butler, Champaign, Clark, Clermont and 35 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 2003Severe Thunderstorm Watches in Michigan, 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.