Alert archive / Ohio / Montgomery County
Weather alerts in Montgomery County, Ohio, 2026
206 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 206
- Warnings
- 61
- Watches
- 31
- Advisories
- 53
- Busiest month
- August49 alerts
- Busiest day
- August 11, 202615 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 8 tornado warnings covering Montgomery County in 2026 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 11 minutes after it went out.
Montgomery County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 8 | 2 | 75% | 2 | 100% | 11 min |
| Severe thunderstorm warnings | 30 | 20 | 33% | 25 | 80% | 18 min |
| Flash flood warnings | 6 | 4 | 33% | 5 | 80% | 44 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, OH: tornado warnings | 69 | 19 | 72% | 40 | 63% | 12 min |
| NWS Wilmington, OH: severe thunderstorm warnings | 285 | 178 | 38% | 753 | 78% | 20 min |
| NWS Wilmington, OH: flash flood warnings | 97 | 55 | 43% | 167 | 79% | 91 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 |
|---|---|---|---|
| Jan 9, 6:44 AM EST | Special Weather Statement | ILN | 31 min |
| Jan 15, 3:23 AM EST | Winter Weather Advisory | ILN | 9 hr |
| Jan 18, 1:10 PM EST | Cold Weather Advisory | ILN | 45 hr |
| Jan 21, 12:30 PM EST | Winter Storm Watch | ILN | 37 hr |
| Jan 23, 1:27 AM EST | Winter Storm Warning | ILN | 3 days |
| Jan 23, 1:30 AM EST | Cold Weather Advisory | ILN | 35 hr |
| Jan 24, 1:32 PM EST | Cold Weather Advisory | ILN | 52 hr |
| Jan 24, 1:32 PM EST | Extreme Cold Watch | ILN | 22 hr |
| Jan 25, 12:00 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 10:00 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 25, 11:18 AM EST | Extreme Cold Warning | ILN | 47 hr |
| Jan 27, 1:46 AM EST | Cold Weather Advisory | ILN | 34 hr |
| Jan 27, 12:49 PM EST | Extreme Cold Warning | ILN | 23 hr |
| Jan 28, 1:00 AM EST | Cold Weather Advisory | ILN | 33 hr |
| Jan 29, 11:36 PM EST | Cold Weather Advisory | ILN | 34 hr |
| Jan 30, 12:33 PM EST | Extreme Cold Warning | ILN | 21 hr |
| Jan 31, 1:28 AM EST | Cold Weather Advisory | ILN | 33 hr |
| Feb 5, 12:28 PM EST | Winter Weather Advisory | ILN | 25 hr |
| Feb 6, 2:00 AM EST | Cold Weather Advisory | ILN | 34 hr |
| Feb 15, 6:35 PM EST | Dense Fog Advisory | ILN | 17 hr |
| Feb 16, 9:06 PM EST | Dense Fog Advisory | ILN | 13 hr |
| Feb 19, 1:20 PM EST | Tornado Watch | SPC | 10 hr |
| Feb 19, 9:40 PM EST | Special Weather Statement | ILN | 35 min |
| Feb 19, 9:49 PM EST | Tornado Warning | ILN | 26 min |
| Feb 19, 10:07 PM EST | Areal Flood Advisory | ILN | 11 hr |
| Feb 19, 10:52 PM EST | Flash Flood Warning | ILN | 2 hr |
| Feb 20, 1:15 AM EST | Areal Flood Warning | ILN | 8 hr |
| Feb 23, 6:47 AM EST | Winter Weather Advisory | ILN | 3 hr |
| Mar 1, 12:33 PM EST | Winter Weather Advisory | ILN | 24 hr |
| Mar 2, 6:29 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 3, 12:01 PM EST | Flood Watch | ILN | 49 hr |
| Mar 4, 8:09 PM EST | Areal Flood Advisory | ILN | 22 hr |
| Mar 4, 11:07 PM EST | Dense Fog Advisory | ILN | 6 hr |
| Mar 5, 12:01 AM EST | Flash Flood Warning | ILN | 3 hr |
| Mar 5, 2:44 AM EST | Areal Flood Warning | ILN | 11 hr |
| Mar 5, 1:30 PM EST | Areal Flood Advisory | ILN | 5 hr |
| Mar 6, 1:48 AM EST | Dense Fog Advisory | ILN | 8 hr |
| Mar 7, 8:52 AM EST | Mesoscale Discussion | SPC | 83 min |
| Mar 10, 11:59 PM EDT | Wind Advisory | ILN | 19 hr |
| Mar 11, 5:23 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 11, 6:22 AM EDT | Tornado Watch | SPC | 6 hr |
| Mar 11, 8:49 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Mar 11, 9:53 AM EDT | Severe Thunderstorm Warning | ILN | 52 min |
| Mar 12, 2:12 AM EDT | Wind Advisory | ILN | 42 hr |
| Mar 12, 12:35 PM EDT | High Wind Warning | ILN | 31 hr |
| Mar 14, 12:29 PM EDT | Wind Advisory | ILN | 44 hr |
| Mar 15, 1:47 PM EDT | High Wind Warning | ILN | 8 hr |
| Mar 15, 11:15 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Mar 15, 11:53 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 22, 4:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 22, 5:39 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 22, 8:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Mar 22, 10:29 PM EDT | Special Weather Statement | ILN | 46 min |
| Mar 26, 4:52 PM EDT | Tornado Watch | SPC | 6 hr |
| Mar 26, 8:54 PM EDT | Severe Thunderstorm Warning | ILN | 51 min |
| Apr 3, 4:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 7:55 PM EDT | Special Weather Statement | ILN | 35 min |
| Apr 4, 1:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 2:32 PM EDT | Severe Thunderstorm Warning | ILN | 28 min |
| Apr 5, 1:22 PM EDT | Frost Advisory | ILN | 20 hr |
| Apr 5, 1:22 PM EDT | Freeze Watch | ILN | 23 hr |
| Apr 6, 12:18 PM EDT | Freeze Warning | ILN | 22 hr |
| Apr 7, 1:27 PM EDT | Freeze Warning | ILN | 21 hr |
| Apr 14, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 14, 6:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 18, 3:51 PM EDT | Frost Advisory | ILN | 17 hr |
| Apr 19, 1:43 AM EDT | Freeze Warning | ILN | 31 hr |
| Apr 22, 6:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 24, 2:22 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 27, 8:39 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 27, 11:56 PM EDT | Severe Thunderstorm Warning | ILN | 64 min |
| Apr 28, 12:07 AM EDT | Severe Thunderstorm Warning | ILN | 53 min |
| Apr 28, 12:31 AM EDT | Special Weather Statement | ILN | 29 min |
| Apr 28, 12:52 AM EDT | Special Weather Statement | ILN | 38 min |
| Apr 28, 2:01 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| May 1, 3:11 AM EDT | Frost Advisory | ILN | 30 hr |
| May 2, 1:13 PM EDT | Frost Advisory | ILN | 20 hr |
| May 17, 4:26 AM EDT | Special Weather Statement | ILN | 34 min |
| May 18, 2:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 19, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 19, 6:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 19, 6:31 PM EDT | Severe Thunderstorm Warning | ILN | 44 min |
| May 19, 7:13 PM EDT | Special Weather Statement | ILN | 32 min |
| May 19, 7:39 PM EDT | Severe Thunderstorm Warning | ILN | 51 min |
| May 19, 7:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 19, 9:03 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| May 23, 12:56 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| May 23, 8:36 AM EDT | Areal Flood Advisory | ILN | 7 hr |
| May 26, 1:44 PM EDT | Flood Watch | ILN | 31 hr |
| May 27, 8:21 AM EDT | Areal Flood Advisory | ILN | 6 hr |
| May 27, 1:54 PM EDT | Areal Flood Warning | ILN | 7 hr |
| May 27, 3:32 PM EDT | Areal Flood Advisory | ILN | 6 hr |
| May 28, 2:56 AM EDT | Dense Fog Advisory | ILN | 6 hr |
| Jun 6, 6:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 6, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 5:31 PM EDT | Severe Thunderstorm Warning | ILN | 29 min |
| Jun 6, 6:14 PM EDT | Severe Thunderstorm Warning | ILN | 31 min |
| Jun 7, 7:28 PM EDT | Areal Flood Advisory | ILN | 24 min |
| Jun 7, 7:52 PM EDT | Flash Flood Warning | ILN | 3 hr |
| Jun 11, 9:47 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 11, 11:50 PM EDT | Severe Thunderstorm Warning | ILN | 55 min |
| Jun 14, 1:25 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 1:40 PM EDT | Mesoscale Discussion | SPC | 5 min |
| Jun 14, 3:12 PM EDT | Special Weather Statement | ILN | 48 min |
| Jun 17, 1:02 PM EDT | Flood Watch | ILN | 21 hr |
| Jun 17, 9:27 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 17, 10:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 17, 11:59 PM EDT | Tornado Warning | ILN | 31 min |
| Jun 18, 12:27 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 18, 2:13 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Jun 21, 8:24 PM EDT | Mesoscale Discussion | SPC | 36 min |
| Jun 25, 3:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 2:28 PM EDT | Special Weather Statement | ILN | 62 min |
| Jun 28, 1:48 PM EDT | Heat Advisory | ILN | 35 hr |
| Jun 30, 12:43 AM EDT | Extreme Heat Warning | ILN | 4 days |
| Jul 3, 12:02 AM EDT | Heat Advisory | ILN | 44 hr |
| Jul 9, 9:27 AM EDT | Flood Watch | ILN | 60 hr |
| Jul 10, 5:53 PM EDT | Special Weather Statement | ILN | 37 min |
| Jul 10, 6:24 PM EDT | Special Weather Statement | ILN | 36 min |
| Jul 10, 6:46 PM EDT | Areal Flood Advisory | ILN | 109 min |
| Jul 11, 12:00 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Jul 11, 2:03 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Jul 14, 12:50 PM EDT | Heat Advisory | ILN | 31 hr |
| Jul 17, 5:11 PM EDT | Special Weather Statement | ILN | 34 min |
| Jul 18, 3:33 PM EDT | Special Weather Statement | ILN | 27 min |
| Jul 21, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 27, 4:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 27, 5:20 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 27, 5:57 PM EDT | Severe Thunderstorm Warning | ILN | 49 min |
| Jul 27, 6:30 PM EDT | Special Weather Statement | ILN | 30 min |
| Jul 27, 6:50 PM EDT | Severe Thunderstorm Warning | ILN | 40 min |
| Aug 1, 7:39 PM EDT | Tornado Warning | ILN | 36 min |
| Aug 1, 7:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 8:10 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Aug 1, 8:15 PM EDT | Tornado Warning | ILN | 30 min |
| Aug 1, 8:25 PM EDT | Tornado Warning | ILN | 35 min |
| Aug 1, 8:44 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Aug 1, 8:52 PM EDT | Tornado Warning | ILN | 23 min |
| Aug 1, 9:11 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Aug 1, 9:14 PM EDT | Tornado Warning | ILN | 12 min |
| Aug 1, 9:17 PM EDT | Severe Thunderstorm Warning | ILN | 43 min |
| Aug 1, 9:56 PM EDT | Flash Flood Warning | ILN | 3 hr |
| Aug 2, 12:38 AM EDT | Areal Flood Advisory | ILN | 3 hr |
| Aug 7, 1:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 2:39 PM EDT | Severe Thunderstorm Warning | ILN | 38 min |
| Aug 7, 3:07 PM EDT | Areal Flood Advisory | ILN | 2 hr |
| Aug 8, 12:41 AM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| Aug 8, 7:39 PM EDT | Special Weather Statement | ILN | 51 min |
| Aug 8, 7:58 PM EDT | Severe Thunderstorm Warning | ILN | 47 min |
| Aug 10, 12:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 1:04 PM EDT | Flood Watch | ILN | 4 days |
| Aug 10, 2:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 10, 6:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 7:21 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 8:00 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 8:31 AM EDT | Severe Thunderstorm Warning | ILN | 59 min |
| Aug 11, 8:41 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 9:28 AM EDT | Special Weather Statement | ILN | 47 min |
| Aug 11, 11:18 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 11, 12:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 11, 12:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 1:08 PM EDT | Severe Thunderstorm Warning | ILN | 37 min |
| Aug 11, 1:38 PM EDT | Special Weather Statement | ILN | 37 min |
| Aug 11, 1:56 PM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| Aug 11, 1:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 2:25 PM EDT | Severe Thunderstorm Warning | ILN | 50 min |
| Aug 11, 2:28 PM EDT | Areal Flood Advisory | ILN | 3 hr |
| Aug 11, 3:00 PM EDT | Severe Thunderstorm Warning | ILN | 45 min |
| Aug 11, 3:13 PM EDT | Severe Thunderstorm Warning | ILN | 47 min |
| Aug 12, 11:30 AM EDT | Areal Flood Warning | ILN | 3 hr |
| Aug 12, 2:07 PM EDT | Areal Flood Warning | ILN | 4 hr |
| Aug 14, 12:03 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Aug 14, 2:57 PM EDT | Flood Watch | ILN | 41 hr |
| Aug 15, 4:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 19, 12:40 PM EDT | Flood Watch | ILN | 21 hr |
| Aug 20, 12:16 AM EDT | Areal Flood Advisory | ILN | 69 min |
| Aug 20, 1:24 AM EDT | Flash Flood Warning | ILN | 3 hr |
| Aug 20, 3:54 AM EDT | Areal Flood Warning | ILN | 14 hr |
| Aug 20, 6:19 AM EDT | Areal Flood Warning | ILN | 4 hr |
| Aug 31, 2:03 PM EDT | Heat Advisory | ILN | 4 days |
| Sep 4, 3:13 PM EDT | Severe Thunderstorm Warning | ILN | 47 min |
| Sep 4, 3:17 PM EDT | Severe Thunderstorm Warning | ILN | 43 min |
| Sep 4, 3:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 4, 3:42 PM EDT | Severe Thunderstorm Warning | ILN | 33 min |
| Sep 4, 3:52 PM EDT | Severe Thunderstorm Warning | ILN | 38 min |
| Sep 4, 4:06 PM EDT | Severe Thunderstorm Warning | ILN | 28 min |
| Sep 5, 1:41 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 5, 4:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 9, 7:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 13, 3:13 AM EDT | Dense Fog Advisory | ILN | 6 hr |
| Sep 16, 2:55 PM EDT | Flood Watch | ILN | 23 hr |
| Sep 16, 3:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 16, 5:29 PM EDT | Severe Thunderstorm Warning | ILN | 46 min |
| Sep 16, 8:00 PM EDT | Areal Flood Advisory | ILN | 112 min |
| Sep 17, 1:37 PM EDT | Special Weather Statement | ILN | 23 min |
| Sep 17, 1:41 PM EDT | Severe Thunderstorm Warning | ILN | 34 min |
| Sep 17, 1:53 PM EDT | Flood Watch | ILN | 18 hr |
| Sep 20, 1:07 PM EDT | Flood Watch | ILN | 23 hr |
| Sep 20, 7:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 7:44 PM EDT | Special Weather Statement | ILN | 31 min |
| Sep 20, 7:51 PM EDT | Areal Flood Advisory | ILN | 2 hr |
| Sep 20, 7:54 PM EDT | Tornado Warning | ILN | 21 min |
| Sep 20, 8:06 PM EDT | Severe Thunderstorm Warning | ILN | 39 min |
| Sep 20, 8:17 PM EDT | Areal Flood Advisory | ILN | 2 hr |
| Sep 20, 8:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Sep 20, 9:10 PM EDT | Flash Flood Warning | ILN | 3 hr |
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.