Alert archive / Ohio / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 738
The Storm Prediction Center issued this severe thunderstorm watch at Aug 7, 2011, 5:49 PM EDT for 22 counties in Ohio; Fayette County, Greene County, Washington County, Pennsylvania; 16 counties in West Virginia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 7, 2011, 5:49 PM EDT (21:49 UTC)
- Expired
- Aug 7, 2011, 9:41 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 41 counties
Ashland County, OH, Athens County, OH, Belmont County, OH, Carroll County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Richland County, OH, Stark County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Wayne County, OH, Fayette County, PA, Greene County, PA, Washington County, PA, Brooke County, WV, Doddridge County, WV, Hancock County, WV, Harrison County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Ritchie County, WV, Taylor County, WV, Tyler County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Cleveland radar (KCLE), 147 km from the middle of the area, began a volume at 21:50 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 7:48 PM EDT | Severe Thunderstorm Warning | RLX | Calhoun, Doddridge, Gilmer, Lewis, Pleasants, Ritchie and 3 more | 42 min |
| Aug 7, 8:27 PM EDT | Severe Thunderstorm Warning | RLX | Barbour, Braxton, Doddridge, Gilmer, Harrison, Lewis and 2 more | 48 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 12:14 PM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Butler, Champaign, Clark, Darke and 15 more | 2 hr |
| Aug 7, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | Auglaize, Butler, Champaign, Clark, Clinton, Darke and 20 more | 6 hr |
| Aug 7, 4:01 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Butler, Champaign, Clark, Clinton and 30 more | 119 min |
| Aug 7, 7:36 PM EDT | Mesoscale Discussion | SPC | Gallia, Jackson, Meigs, Washington | 84 min |
| Aug 7, 3:53 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Blair, Bradford, Carbon, Centre and 25 more | 67 min |
Nearby
Severe Thunderstorm Watches in Ohio, 2011Severe Thunderstorm Watches in West Virginia, 2011Severe Thunderstorm Watches in Pennsylvania, 2011Every severe thunderstorm watch in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.