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
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 18 | 31% | 15 | 100% | 25 min |
| Flash flood warnings | 4 | 3 | 25% | 6 | 100% | 180 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cleveland, OH: tornado warnings | 25 | 5 | 80% | 13 | 77% | 11 min |
| NWS Cleveland, OH: severe thunderstorm warnings | 303 | 194 | 36% | 662 | 89% | 22 min |
| NWS Cleveland, OH: flash flood warnings | 34 | 16 | 53% | 36 | 92% | 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 31, 7:56 PM EST | Special Weather Statement | CLE | 49 min |
| Jan 8, 1:21 PM EST | Wind Advisory | CLE | 30 hr |
| Jan 18, 1:50 PM EST | Cold Weather Advisory | CLE | 46 hr |
| Jan 19, 9:23 AM EST | Snow Squall Warning | CLE | 22 min |
| Jan 22, 2:09 AM EST | Winter Storm Watch | CLE | 46 hr |
| Jan 22, 12:53 PM EST | Cold Weather Advisory | CLE | 42 hr |
| Jan 23, 1:12 AM EST | Winter Storm Warning | CLE | 3 days |
| Jan 25, 12:05 PM EST | Extreme Cold Watch | CLE | 12 hr |
| Jan 26, 12:30 AM EST | Extreme Cold Warning | CLE | 33 hr |
| Jan 27, 12:19 AM EST | Cold Weather Advisory | CLE | 35 hr |
| Jan 30, 12:06 AM EST | Cold Weather Advisory | CLE | 33 hr |
| Feb 5, 12:58 PM EST | Cold Weather Advisory | CLE | 47 hr |
| Feb 18, 8:01 PM EST | Dense Fog Advisory | CLE | 15 hr |
| Feb 19, 12:50 PM EST | Wind Advisory | CLE | 30 hr |
| Mar 3, 10:02 PM EST | Dense Fog Advisory | CLE | 13 hr |
| Mar 5, 1:07 AM EST | Dense Fog Advisory | CLE | 9 hr |
| Mar 11, 11:04 AM EDT | Severe Thunderstorm Warning | CLE | 56 min |
| Mar 11, 11:51 AM EDT | Areal Flood Advisory | CLE | 3 hr |
| Mar 12, 1:33 AM EDT | High Wind Watch | CLE | 12 hr |
| Mar 12, 1:06 PM EDT | High Wind Warning | CLE | 37 hr |
| Mar 14, 1:06 PM EDT | Wind Advisory | CLE | 67 hr |
| Mar 26, 4:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 26, 4:52 PM EDT | Tornado Watch | SPC | 6 hr |
| Mar 26, 5:32 PM EDT | Severe Thunderstorm Warning | CLE | 43 min |
| Mar 26, 7:14 PM EDT | Severe Thunderstorm Warning | CLE | 46 min |
| Mar 26, 7:57 PM EDT | Severe Thunderstorm Warning | CLE | 42 min |
| Mar 31, 2:59 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 31, 3:46 PM EDT | Severe Thunderstorm Warning | CLE | 59 min |
| Mar 31, 3:59 PM EDT | Severe Thunderstorm Warning | CLE | 46 min |
| Apr 1, 12:41 PM EDT | Areal Flood Advisory | CLE | 9 hr |
| Apr 1, 1:18 PM EDT | Areal Flood Warning | CLE | 6 hr |
| Apr 1, 7:22 PM EDT | Areal Flood Advisory | CLE | 4 hr |
| Apr 2, 5:22 AM EDT | Areal Flood Warning | CLE | 12 hr |
| Apr 2, 5:28 PM EDT | Areal Flood Warning | CLE | 39 hr |
| Apr 4, 1:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 4, 3:31 PM EDT | Special Weather Statement | CLE | 59 min |
| Apr 4, 4:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 13, 9:17 PM EDT | Severe Thunderstorm Warning | CLE | 58 min |
| Apr 14, 1:15 PM EDT | Flood Watch | CLE | 37 hr |
| Apr 15, 12:55 AM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 15, 1:48 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 15, 2:12 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 15, 2:23 AM EDT | Severe Thunderstorm Warning | CLE | 54 min |
| Apr 15, 1:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 15, 2:56 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 15, 4:14 PM EDT | Severe Thunderstorm Warning | CLE | 61 min |
| Apr 15, 4:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 18, 1:29 PM EDT | Freeze Watch | CLE | 11 hr |
| Apr 19, 12:49 AM EDT | Freeze Warning | CLE | 34 hr |
| May 1, 1:53 PM EDT | Frost Advisory | CLE | 19 hr |
| May 2, 1:37 PM EDT | Frost Advisory | CLE | 19 hr |
| May 9, 1:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 9, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 9, 5:00 PM EDT | Special Weather Statement | CLE | 45 min |
| May 11, 12:58 PM EDT | Frost Advisory | CLE | 19 hr |
| May 18, 3:32 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 19, 1:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 19, 2:01 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 19, 6:05 PM EDT | Special Weather Statement | CLE | 40 min |
| May 19, 6:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 19, 6:25 PM EDT | Severe Thunderstorm Warning | CLE | 50 min |
| May 20, 3:54 PM EDT | Beach Hazards Statement | CLE | 66 hr |
| May 25, 1:30 AM EDT | Dense Fog Advisory | CLE | 8 hr |
| May 29, 4:00 AM EDT | Beach Hazards Statement | CLE | 40 hr |
| Jun 6, 5:20 PM EDT | Severe Thunderstorm Warning | CLE | 25 min |
| Jun 6, 5:41 PM EDT | Severe Thunderstorm Warning | CLE | 49 min |
| Jun 6, 5:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 6, 8:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 9, 1:53 PM EDT | Heat Advisory | CLE | 30 hr |
| Jun 9, 10:16 PM EDT | Special Weather Statement | CLE | 44 min |
| Jun 9, 10:51 PM EDT | Severe Thunderstorm Warning | CLE | 39 min |
| Jun 9, 11:07 PM EDT | Areal Flood Advisory | CLE | 3 hr |
| Jun 10, 12:16 AM EDT | Flash Flood Warning | CLE | 3 hr |
| Jun 11, 2:27 AM EDT | Heat Advisory | CLE | 13 hr |
| Jun 11, 3:54 PM EDT | Beach Hazards Statement | CLE | 22 hr |
| Jun 11, 11:38 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 11, 11:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 12, 12:20 AM EDT | Severe Thunderstorm Warning | CLE | 55 min |
| Jun 14, 1:15 PM EDT | Severe Thunderstorm Warning | CLE | 60 min |
| Jun 14, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 2:08 PM EDT | Severe Thunderstorm Warning | CLE | 52 min |
| Jun 17, 3:34 AM EDT | Beach Hazards Statement | CLE | 46 hr |
| Jun 21, 3:38 AM EDT | Beach Hazards Statement | CLE | 40 hr |
| Jun 25, 3:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 3:29 PM EDT | Special Weather Statement | CLE | 46 min |
| Jun 28, 1:01 PM EDT | Heat Advisory | CLE | 5 days |
| Jun 29, 12:15 PM EDT | Extreme Heat Warning | CLE | 4 days |
| Jul 3, 6:45 PM EDT | Severe Thunderstorm Warning | CLE | 45 min |
| Jul 3, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 3, 7:29 PM EDT | Severe Thunderstorm Warning | CLE | 61 min |
| Jul 3, 8:05 PM EDT | Heat Advisory | CLE | 22 hr |
| Jul 5, 11:45 PM EDT | Areal Flood Advisory | CLE | 6 hr |
| Jul 6, 2:21 AM EDT | Flood Watch | CLE | 17 hr |
| Jul 6, 3:09 AM EDT | Beach Hazards Statement | CLE | 19 hr |
| Jul 6, 7:56 AM EDT | Flash Flood Warning | CLE | 6 hr |
| Jul 6, 10:43 AM EDT | Flash Flood Warning | CLE | 6 hr |
| Jul 6, 11:25 AM EDT | Flash Flood Warning | CLE | 5 hr |
| Jul 6, 1:50 PM EDT | Areal Flood Warning | CLE | 7 hr |
| Jul 6, 4:31 PM EDT | Areal Flood Warning | CLE | 15 hr |
| Jul 13, 1:01 PM EDT | Heat Advisory | CLE | 31 hr |
| Jul 14, 12:56 PM EDT | Heat Advisory | CLE | 31 hr |
| Jul 18, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 18, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 3:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 28, 1:24 AM EDT | Severe Thunderstorm Warning | CLE | 36 min |
| Jul 28, 1:59 AM EDT | Severe Thunderstorm Warning | CLE | 25 min |
| Aug 2, 1:54 AM EDT | Flood Watch | CLE | 20 hr |
| Aug 2, 3:45 AM EDT | Beach Hazards Statement | CLE | 31 hr |
| Aug 2, 9:41 AM EDT | Areal Flood Advisory | CLE | 3 hr |
| Aug 9, 4:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 7:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Aug 9, 7:22 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 9, 8:33 PM EDT | Severe Thunderstorm Warning | CLE | 57 min |
| Aug 10, 7:00 AM EDT | Special Weather Statement | CLE | 45 min |
| Aug 10, 7:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 1:18 AM EDT | Flood Watch | CLE | 22 hr |
| Aug 11, 4:59 AM EDT | Severe Thunderstorm Warning | CLE | 61 min |
| Aug 11, 5:32 AM EDT | Severe Thunderstorm Warning | CLE | 58 min |
| Aug 11, 4:06 PM EDT | Special Weather Statement | CLE | 39 min |
| Aug 22, 1:09 AM EDT | Severe Thunderstorm Warning | CLE | 36 min |
| Aug 22, 1:22 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 31, 1:24 PM EDT | Heat Advisory | CLE | 55 hr |
| Sep 2, 4:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Sep 3, 12:58 AM EDT | Heat Advisory | CLE | 18 hr |
| Sep 3, 1:44 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 3, 3:03 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Sep 3, 4:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 3, 4:41 PM EDT | Severe Thunderstorm Warning | CLE | 79 min |
| Sep 4, 7:59 AM EDT | Special Weather Statement | CLE | 46 min |
| Sep 4, 8:27 AM EDT | Severe Thunderstorm Warning | CLE | 48 min |
| Sep 13, 3:56 AM EDT | Beach Hazards Statement | CLE | 30 hr |
| Sep 20, 3:42 AM EDT | Beach Hazards Statement | CLE | 4 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 26 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 4 |
| Flood Watch | 4 |
| Areal Flood Advisory | 6 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Heat | |
| Extreme Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 5 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Beach Hazards Statement | 9 |
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.