Alert archive / Ohio / Severe Thunderstorm Watches / 2018

Severe Thunderstorm Watches in Ohio, May 2018

8 severe thunderstorm watches in May 2018. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.

Severe Thunderstorm Watches by county

Each county as a circle sized by its count in May 2018. Tap one for its archive.

Severe Thunderstorm Watches
8
Busiest day
May 4, 20182 severe thunderstorm watches

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
May 4, 1:22 PM EDTSevere Thunderstorm WatchSPCAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more5 hr
May 4, 2:44 PM EDTSevere Thunderstorm WatchSPCBelmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more6 hr
May 12, 2:47 PM EDTSevere Thunderstorm WatchSPCBelmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 7 more8 hr
May 13, 4:28 PM EDTSevere Thunderstorm WatchSPCBelmont, Guernsey, Monroe, Morgan, Muskingum, Noble and 1 more7 hr
May 14, 12:29 PM EDTSevere Thunderstorm WatchSPCAthens, Belmont, Guernsey, Harrison, Jefferson, Monroe and 5 more9 hr
May 21, 4:59 PM EDTSevere Thunderstorm WatchSPCAshland, Auglaize, Butler, Champaign, Clark, Crawford and 23 more6 hr
May 22, 1:42 PM EDTSevere Thunderstorm WatchSPCAshland, Ashtabula, Belmont, Brown, Butler, Carroll and 56 more7 hr
May 31, 2:30 PM EDTSevere Thunderstorm WatchSPCAdams, Auglaize, Brown, Butler, Champaign, Clark and 18 more3 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

35 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.