Alert archive / Ohio / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 553
The Storm Prediction Center issued this severe thunderstorm watch at Jul 29, 2002, 7:10 PM EDT for 4 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2002, 7:10 PM EDT (23:10 UTC)
- Expired
- Jul 30, 2002, 12:00 AM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Erie County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Wyoming County, NY, Athens County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Jackson County, OH, Jefferson County, OH, Mahoning County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Stark County, OH, Trumbull County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Forest County, PA, Greene County, PA, Jefferson County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Brooke County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Ohio County, WV, Pleasants County, WV, Ritchie County, WV, Tyler County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Pittsburgh radar (KPBZ), 36 km from the middle of the area, began a volume at 23:11 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 7:50 PM EDT | Severe Thunderstorm Warning | CLE | Stark | 55 min |
| Jul 29, 8:08 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 67 min |
| Jul 29, 8:13 PM EDT | Severe Thunderstorm Warning | CLE | Trumbull | 77 min |
| Jul 29, 8:19 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning | 71 min |
| Jul 29, 8:21 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 84 min |
| Jul 29, 8:26 PM EDT | Severe Thunderstorm Warning | RLX | Perry | 34 min |
| Jul 29, 9:06 PM EDT | Severe Thunderstorm Warning | PBZ | Mercer | 54 min |
| Jul 29, 9:58 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 62 min |
| Jul 29, 10:26 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Orleans, Wyoming | 49 min |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 304 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
- 747 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 879 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | Defiance, Fulton, Henry, Mercer, Paulding, Putnam and 2 more | 5 hr |
| Jul 29, 4:30 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Ashland, Auglaize, Brown, Butler and 48 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 2002Severe Thunderstorm Watches in Pennsylvania, 2002Severe Thunderstorm Watches in West Virginia, 2002Every severe thunderstorm watch in 2002
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.