Weather alerts in Butler County, Ohio, 2026

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

Butler County and its neighbors

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

Alerts: 187
Warnings: 51
Watches: 29
Advisories: 48
Busiest month: August50 alerts
Busiest day: August 11, 202616 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 Butler County in 2026 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 0 minutes after it went out.

Butler County, 2026

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	8	2	75%	1	100%	0 min
Severe thunderstorm warnings	23	17	26%	19	58%	22 min
Flash flood warnings	4	2	50%	8	25%	92 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%	754	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 11, 7:33 AM EST	Special Weather Statement	ILN	27 min
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 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 2, 12:49 PM EST	Winter 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, 8:12 PM EST	Special Weather Statement	ILN	33 min
Feb 19, 9:16 PM EST	Special Weather Statement	ILN	29 min
Feb 19, 10:07 PM EST	Areal Flood Advisory	ILN	11 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, 12:20 AM EST	Areal Flood Advisory	ILN	10 hr
Mar 4, 8:09 PM EST	Areal Flood Advisory	ILN	22 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 7, 8:52 AM EST	Mesoscale Discussion	SPC	83 min
Mar 10, 11:59 PM EDT	Wind Advisory	ILN	19 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, 3:20 PM EDT	Areal Flood Advisory	ILN	3 hr
Mar 11, 4:10 PM EDT	Areal Flood Advisory	ILN	3 hr
Mar 12, 2:12 AM EDT	Wind Advisory	ILN	42 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, 11:52 PM EDT	Severe Thunderstorm Warning	ILN	38 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, 10:57 PM EDT	Special Weather Statement	ILN	48 min
Mar 22, 11:04 PM EDT	Mesoscale Discussion	SPC	86 min
Apr 1, 1:06 PM EDT	Mesoscale Discussion	SPC	114 min
Apr 3, 4:15 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 4, 1:46 PM EDT	Mesoscale Discussion	SPC	2 hr
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, 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 24, 2:22 PM EDT	Mesoscale Discussion	SPC	2 hr
Apr 27, 8:39 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Apr 28, 12:07 AM EDT	Severe Thunderstorm Warning	ILN	53 min
Apr 28, 12:46 AM EDT	Special Weather Statement	ILN	29 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 18, 2:50 PM EDT	Mesoscale Discussion	SPC	85 min
May 18, 7:49 PM EDT	Special Weather Statement	ILN	41 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, 7:10 PM EDT	Severe Thunderstorm Warning	ILN	50 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 20, 4:45 AM EDT	Areal Flood Advisory	ILN	3 hr
May 22, 2:21 AM EDT	Flood Watch	ILN	40 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 23, 12:04 PM EDT	River Flood Warning	ILN	9 hr
May 26, 1:44 PM EDT	Flood Watch	ILN	31 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, 3:43 PM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 6, 6:14 PM EDT	Severe Thunderstorm Warning	ILN	31 min
Jun 9, 11:07 PM EDT	Special Weather Statement	ILN	53 min
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 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, 1:04 AM EDT	Tornado Warning	ILN	26 min
Jun 18, 1:25 AM EDT	Tornado Warning	ILN	35 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 21, 8:42 PM EDT	Severe Thunderstorm Watch	SPC	2 hr
Jun 26, 1:09 AM EDT	Flood Watch	ILN	34 hr
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 4, 10:23 PM EDT	Special Weather Statement	ILN	37 min
Jul 4, 10:57 PM EDT	Special Weather Statement	ILN	33 min
Jul 9, 9:27 AM EDT	Flood Watch	ILN	60 hr
Jul 17, 4:28 PM EDT	Areal Flood Advisory	ILN	3 hr
Jul 21, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jul 21, 1:54 PM EDT	Severe Thunderstorm Warning	ILN	51 min
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, 6:23 PM EDT	Severe Thunderstorm Warning	ILN	26 min
Jul 27, 6:30 PM EDT	Special Weather Statement	ILN	30 min
Jul 27, 6:40 PM EDT	Severe Thunderstorm Warning	ILN	35 min
Jul 27, 6:50 PM EDT	Severe Thunderstorm Warning	ILN	40 min
Jul 27, 7:13 PM EDT	Severe Thunderstorm Warning	ILN	47 min
Aug 1, 1:31 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 1, 6:49 PM EDT	Tornado Warning	ILN	26 min
Aug 1, 7:15 PM EDT	Special Weather Statement	ILN	30 min
Aug 1, 7:35 PM EDT	Flash Flood Warning	ILN	3 hr
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, 9:11 PM EDT	Areal Flood Advisory	ILN	3 hr
Aug 1, 10:09 PM EDT	Areal Flood Advisory	ILN	3 hr
Aug 7, 6:05 AM EDT	Severe Thunderstorm Warning	ILN	40 min
Aug 7, 1:33 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 2:55 PM EDT	Special Weather Statement	ILN	35 min
Aug 7, 3:38 PM EDT	Areal Flood Advisory	ILN	3 hr
Aug 7, 4:19 PM EDT	Flash Flood Warning	ILN	3 hr
Aug 7, 5:54 PM EDT	Severe Thunderstorm Warning	ILN	51 min
Aug 7, 6:37 PM EDT	Special Weather Statement	ILN	38 min
Aug 8, 7:58 PM EDT	Severe Thunderstorm Warning	ILN	47 min
Aug 8, 8:44 PM EDT	Severe Thunderstorm Warning	ILN	31 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 11, 8:00 AM EDT	Mesoscale Discussion	SPC	2 hr
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, 1:57 PM EDT	Mesoscale Discussion	SPC	2 hr
Aug 11, 2:56 PM EDT	Severe Thunderstorm Warning Considerable damage threat	ILN	49 min
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 11, 3:13 PM EDT	Tornado Warning	ILN	32 min
Aug 11, 3:23 PM EDT	Areal Flood Advisory	ILN	3 hr
Aug 11, 3:23 PM EDT	Severe Thunderstorm Warning Considerable damage threat	ILN	52 min
Aug 11, 3:52 PM EDT	Mesoscale Discussion	SPC	113 min
Aug 11, 6:09 PM EDT	Special Weather Statement	ILN	21 min
Aug 11, 6:20 PM EDT	Special Weather Statement	ILN	10 min
Aug 12, 10:20 AM EDT	Flash Flood Warning	ILN	2 hr
Aug 12, 11:30 AM EDT	Areal Flood Warning	ILN	3 hr
Aug 12, 12:29 PM EDT	Areal Flood Warning	ILN	3 hr
Aug 12, 2:07 PM EDT	Areal Flood Warning	ILN	4 hr
Aug 12, 2:13 PM EDT	Areal Flood Warning	ILN	5 hr
Aug 12, 3:25 PM EDT	Special Weather Statement	ILN	50 min
Aug 14, 12:03 AM EDT	Mesoscale Discussion	SPC	117 min
Aug 14, 2:54 AM EDT	Special Weather Statement	ILN	51 min
Aug 14, 2:57 PM EDT	Flood Watch	ILN	41 hr
Aug 16, 6:00 PM EDT	Mesoscale Discussion	SPC	60 min
Aug 20, 1:14 AM EDT	Areal Flood Advisory	ILN	5 hr
Aug 20, 5:54 AM EDT	River Flood Warning	ILN	6 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, 3:35 PM EDT	Mesoscale Discussion	SPC	115 min
Sep 4, 4:06 PM EDT	Severe Thunderstorm Warning	ILN	28 min
Sep 4, 4:27 PM EDT	Severe Thunderstorm Warning	ILN	48 min
Sep 4, 4:45 PM EDT	Severe Thunderstorm Warning	ILN	45 min
Sep 4, 5:07 PM EDT	Special Weather Statement	ILN	23 min
Sep 5, 1:41 AM EDT	Mesoscale Discussion	SPC	94 min
Sep 5, 4:01 PM EDT	Mesoscale Discussion	SPC	119 min
Sep 5, 6:50 PM EDT	Special Weather Statement	ILN	25 min
Sep 13, 3:13 AM EDT	Dense Fog Advisory	ILN	6 hr
Sep 16, 3:46 PM EDT	Mesoscale Discussion	SPC	119 min
Sep 17, 1:53 PM EDT	Flood Watch	ILN	18 hr
Sep 19, 3:27 PM EDT	Special Weather Statement	ILN	48 min
Sep 20, 1:05 AM EDT	Areal Flood Advisory	ILN	3 hr
Sep 20, 1:07 PM EDT	Flood Watch	ILN	23 hr
Sep 20, 7:08 PM EDT	Severe Thunderstorm Warning	ILN	41 min
Sep 20, 7:38 PM EDT	Mesoscale Discussion	SPC	2 hr
Sep 20, 7:45 PM EDT	Special Weather Statement	ILN	45 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, 8:02 PM EDT	Tornado Warning	ILN	17 min
Sep 20, 8:17 PM EDT	Areal Flood Advisory	ILN	2 hr

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	23
Tornado Warning	8
Severe Thunderstorm Watch	13
Tornado Watch	3
Mesoscale Discussion	37
Special Weather Statement	22
Flooding
Areal Flood Warning	6
Flash Flood Warning	4
River Flood Warning	2
Flood Watch	10
Areal Flood Advisory	22
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	4
Heat
Extreme Heat Warning	1
Heat Advisory	3
Cold
Extreme Cold Warning	2
Freeze Warning	3
Extreme Cold Watch	1
Freeze Watch	1
Cold Weather Advisory	8
Frost Advisory	4
Wind and dust
High Wind Warning	1
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2025

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.