Alert archive / Ohio / Ottawa County

Weather alerts in Ottawa County, Ohio, 2026

134 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ottawa County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts
134
Warnings
41
Watches
22
Advisories
29
Busiest month
June23 alerts
Busiest day
April 15, 20268 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Ottawa County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings261831%15100%25 min
Flash flood warnings4325%6100%180 min

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Cleveland, OH: tornado warnings25580%1377%11 min
NWS Cleveland, OH: severe thunderstorm warnings30319436%66289%22 min
NWS Cleveland, OH: flash flood warnings341653%3692%112 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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.

IssuedProductOfficeLasted
Dec 31, 7:56 PM ESTSpecial Weather StatementCLE49 min
Jan 8, 1:21 PM ESTWind AdvisoryCLE30 hr
Jan 18, 1:50 PM ESTCold Weather AdvisoryCLE46 hr
Jan 19, 9:23 AM ESTSnow Squall WarningCLE22 min
Jan 22, 2:09 AM ESTWinter Storm WatchCLE46 hr
Jan 22, 12:53 PM ESTCold Weather AdvisoryCLE42 hr
Jan 23, 1:12 AM ESTWinter Storm WarningCLE3 days
Jan 25, 12:05 PM ESTExtreme Cold WatchCLE12 hr
Jan 26, 12:30 AM ESTExtreme Cold WarningCLE33 hr
Jan 27, 12:19 AM ESTCold Weather AdvisoryCLE35 hr
Jan 30, 12:06 AM ESTCold Weather AdvisoryCLE33 hr
Feb 5, 12:58 PM ESTCold Weather AdvisoryCLE47 hr
Feb 18, 8:01 PM ESTDense Fog AdvisoryCLE15 hr
Feb 19, 12:50 PM ESTWind AdvisoryCLE30 hr
Mar 3, 10:02 PM ESTDense Fog AdvisoryCLE13 hr
Mar 5, 1:07 AM ESTDense Fog AdvisoryCLE9 hr
Mar 11, 11:04 AM EDTSevere Thunderstorm WarningCLE56 min
Mar 11, 11:51 AM EDTAreal Flood AdvisoryCLE3 hr
Mar 12, 1:33 AM EDTHigh Wind WatchCLE12 hr
Mar 12, 1:06 PM EDTHigh Wind WarningCLE37 hr
Mar 14, 1:06 PM EDTWind AdvisoryCLE67 hr
Mar 26, 4:25 PM EDTMesoscale DiscussionSPC95 min
Mar 26, 4:52 PM EDTTornado WatchSPC6 hr
Mar 26, 5:32 PM EDTSevere Thunderstorm WarningCLE43 min
Mar 26, 7:14 PM EDTSevere Thunderstorm WarningCLE46 min
Mar 26, 7:57 PM EDTSevere Thunderstorm WarningCLE42 min
Mar 31, 2:59 PM EDTSevere Thunderstorm WatchSPC8 hr
Mar 31, 3:46 PM EDTSevere Thunderstorm Warning Considerable damage threatCLE59 min
Mar 31, 3:59 PM EDTSevere Thunderstorm Warning Considerable damage threatCLE46 min
Apr 1, 12:41 PM EDTAreal Flood AdvisoryCLE9 hr
Apr 1, 1:18 PM EDTAreal Flood WarningCLE6 hr
Apr 1, 7:22 PM EDTAreal Flood AdvisoryCLE4 hr
Apr 2, 5:22 AM EDTAreal Flood WarningCLE12 hr
Apr 2, 5:28 PM EDTAreal Flood WarningCLE39 hr
Apr 4, 1:46 PM EDTMesoscale DiscussionSPC2 hr
Apr 4, 2:48 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 4, 3:31 PM EDTSpecial Weather StatementCLE59 min
Apr 4, 4:39 PM EDTMesoscale DiscussionSPC2 hr
Apr 4, 6:55 PM EDTMesoscale DiscussionSPC95 min
Apr 13, 9:17 PM EDTSevere Thunderstorm WarningCLE58 min
Apr 14, 1:15 PM EDTFlood WatchCLE37 hr
Apr 15, 12:55 AM EDTMesoscale DiscussionSPC65 min
Apr 15, 1:48 AM EDTSevere Thunderstorm WatchSPC3 hr
Apr 15, 2:12 AM EDTMesoscale DiscussionSPC93 min
Apr 15, 2:23 AM EDTSevere Thunderstorm WarningCLE54 min
Apr 15, 1:44 PM EDTMesoscale DiscussionSPC3 hr
Apr 15, 2:56 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 15, 4:14 PM EDTSevere Thunderstorm Warning Considerable damage threatCLE61 min
Apr 15, 4:24 PM EDTMesoscale DiscussionSPC66 min
Apr 18, 1:29 PM EDTFreeze WatchCLE11 hr
Apr 19, 12:49 AM EDTFreeze WarningCLE34 hr
May 1, 1:53 PM EDTFrost AdvisoryCLE19 hr
May 2, 1:37 PM EDTFrost AdvisoryCLE19 hr
May 9, 1:29 PM EDTMesoscale DiscussionSPC2 hr
May 9, 4:36 PM EDTMesoscale DiscussionSPC84 min
May 9, 5:00 PM EDTSpecial Weather StatementCLE45 min
May 11, 12:58 PM EDTFrost AdvisoryCLE19 hr
May 18, 3:32 PM EDTSevere Thunderstorm WatchSPC3 hr
May 19, 1:44 PM EDTMesoscale DiscussionSPC91 min
May 19, 2:01 PM EDTSevere Thunderstorm WatchSPC8 hr
May 19, 6:05 PM EDTSpecial Weather StatementCLE40 min
May 19, 6:11 PM EDTMesoscale DiscussionSPC64 min
May 19, 6:25 PM EDTSevere Thunderstorm WarningCLE50 min
May 20, 3:54 PM EDTBeach Hazards StatementCLE66 hr
May 25, 1:30 AM EDTDense Fog AdvisoryCLE8 hr
May 29, 4:00 AM EDTBeach Hazards StatementCLE40 hr
Jun 6, 5:20 PM EDTSevere Thunderstorm WarningCLE25 min
Jun 6, 5:41 PM EDTSevere Thunderstorm WarningCLE49 min
Jun 6, 5:42 PM EDTMesoscale DiscussionSPC63 min
Jun 6, 8:11 PM EDTMesoscale DiscussionSPC94 min
Jun 9, 1:53 PM EDTHeat AdvisoryCLE30 hr
Jun 9, 10:16 PM EDTSpecial Weather StatementCLE44 min
Jun 9, 10:51 PM EDTSevere Thunderstorm WarningCLE39 min
Jun 9, 11:07 PM EDTAreal Flood AdvisoryCLE3 hr
Jun 10, 12:16 AM EDTFlash Flood WarningCLE3 hr
Jun 11, 2:27 AM EDTHeat AdvisoryCLE13 hr
Jun 11, 3:54 PM EDTBeach Hazards StatementCLE22 hr
Jun 11, 11:38 PM EDTSevere Thunderstorm WatchSPC3 hr
Jun 11, 11:42 PM EDTMesoscale DiscussionSPC93 min
Jun 12, 12:20 AM EDTSevere Thunderstorm WarningCLE55 min
Jun 14, 1:15 PM EDTSevere Thunderstorm WarningCLE60 min
Jun 14, 1:25 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 14, 2:08 PM EDTSevere Thunderstorm WarningCLE52 min
Jun 17, 3:34 AM EDTBeach Hazards StatementCLE46 hr
Jun 21, 3:38 AM EDTBeach Hazards StatementCLE40 hr
Jun 25, 3:10 PM EDTMesoscale DiscussionSPC2 hr
Jun 25, 3:29 PM EDTSpecial Weather StatementCLE46 min
Jun 28, 1:01 PM EDTHeat AdvisoryCLE5 days
Jun 29, 12:15 PM EDTExtreme Heat WarningCLE4 days
Jul 3, 6:45 PM EDTSevere Thunderstorm WarningCLE45 min
Jul 3, 7:07 PM EDTMesoscale DiscussionSPC113 min
Jul 3, 7:29 PM EDTSevere Thunderstorm WarningCLE61 min
Jul 3, 8:05 PM EDTHeat AdvisoryCLE22 hr
Jul 5, 11:45 PM EDTAreal Flood AdvisoryCLE6 hr
Jul 6, 2:21 AM EDTFlood WatchCLE17 hr
Jul 6, 3:09 AM EDTBeach Hazards StatementCLE19 hr
Jul 6, 7:56 AM EDTFlash Flood WarningCLE6 hr
Jul 6, 10:43 AM EDTFlash Flood WarningCLE6 hr
Jul 6, 11:25 AM EDTFlash Flood WarningCLE5 hr
Jul 6, 1:50 PM EDTAreal Flood WarningCLE7 hr
Jul 6, 4:31 PM EDTAreal Flood WarningCLE15 hr
Jul 13, 1:01 PM EDTHeat AdvisoryCLE31 hr
Jul 14, 12:56 PM EDTHeat AdvisoryCLE31 hr
Jul 18, 12:37 PM EDTMesoscale DiscussionSPC113 min
Jul 18, 1:02 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 18, 3:28 PM EDTMesoscale DiscussionSPC92 min
Jul 28, 1:24 AM EDTSevere Thunderstorm WarningCLE36 min
Jul 28, 1:59 AM EDTSevere Thunderstorm WarningCLE25 min
Aug 2, 1:54 AM EDTFlood WatchCLE20 hr
Aug 2, 3:45 AM EDTBeach Hazards StatementCLE31 hr
Aug 2, 9:41 AM EDTAreal Flood AdvisoryCLE3 hr
Aug 9, 4:39 PM EDTMesoscale DiscussionSPC2 hr
Aug 9, 7:22 PM EDTMesoscale DiscussionSPC83 min
Aug 9, 7:22 PM EDTSevere Thunderstorm WatchSPC4 hr
Aug 9, 8:33 PM EDTSevere Thunderstorm WarningCLE57 min
Aug 10, 7:00 AM EDTSpecial Weather StatementCLE45 min
Aug 10, 7:21 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 11, 1:18 AM EDTFlood WatchCLE22 hr
Aug 11, 4:59 AM EDTSevere Thunderstorm WarningCLE61 min
Aug 11, 5:32 AM EDTSevere Thunderstorm WarningCLE58 min
Aug 11, 4:06 PM EDTSpecial Weather StatementCLE39 min
Aug 22, 1:09 AM EDTSevere Thunderstorm WarningCLE36 min
Aug 22, 1:22 PM EDTSevere Thunderstorm WatchSPC8 hr
Aug 31, 1:24 PM EDTHeat AdvisoryCLE55 hr
Sep 2, 4:46 PM EDTMesoscale DiscussionSPC89 min
Sep 3, 12:58 AM EDTHeat AdvisoryCLE18 hr
Sep 3, 1:44 PM EDTMesoscale DiscussionSPC3 hr
Sep 3, 3:03 PM EDTSevere Thunderstorm WatchSPC9 hr
Sep 3, 4:02 PM EDTMesoscale DiscussionSPC118 min
Sep 3, 4:41 PM EDTSevere Thunderstorm Warning Considerable damage threatCLE79 min
Sep 4, 7:59 AM EDTSpecial Weather StatementCLE46 min
Sep 4, 8:27 AM EDTSevere Thunderstorm WarningCLE48 min
Sep 13, 3:56 AM EDTBeach Hazards StatementCLE30 hr
Sep 20, 3:42 AM EDTBeach Hazards StatementCLE4 days

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive2025

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.