Alert archive / Ohio / Montgomery County

Weather alerts in Montgomery County, Ohio, 2023

103 weather alerts in 2023, 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 2023. Tap one for its archive.

Alerts
103
Warnings
31
Watches
17
Advisories
28
Busiest month
July29 alerts
Busiest day
February 27, 20235 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 3 tornado warnings covering Montgomery County in 2023 had a tornado report inside them.

Montgomery County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3233%0
Severe thunderstorm warnings151313%1377%21 min
Flash flood warnings10100%0

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Wilmington, OH: tornado warnings361169%2454%13 min
NWS Wilmington, OH: severe thunderstorm warnings21112640%39768%20 min
NWS Wilmington, OH: flash flood warnings21957%3087%68 min

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

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
Jan 12, 1:42 AM ESTDense Fog AdvisoryILN6 hr
Jan 18, 2:56 PM ESTWind AdvisoryILN28 hr
Jan 19, 1:13 PM ESTMesoscale DiscussionSPC2 hr
Jan 19, 1:54 PM ESTSevere Thunderstorm WatchSPC5 hr
Jan 19, 4:33 PM ESTSevere Thunderstorm WarningILN42 min
Jan 22, 7:48 AM ESTWinter Weather AdvisoryILN7 hr
Jan 22, 9:29 AM ESTMesoscale DiscussionSPC3 hr
Jan 22, 9:44 AM ESTWinter Storm WarningILN5 hr
Jan 23, 3:51 AM ESTWinter Storm WatchILN24 hr
Jan 24, 3:46 AM ESTWinter Storm WarningILN35 hr
Jan 24, 3:46 AM ESTWinter Weather AdvisoryILN31 hr
Jan 25, 12:44 AM ESTMesoscale DiscussionSPC6 hr
Jan 30, 5:58 AM ESTWinter Weather AdvisoryILN6 hr
Feb 7, 3:03 PM ESTHigh Wind WatchILN24 hr
Feb 8, 3:12 AM ESTWind AdvisoryILN44 hr
Feb 8, 2:59 PM ESTHigh Wind WarningILN28 hr
Feb 14, 3:38 AM ESTWind AdvisoryILN36 hr
Feb 21, 3:23 PM ESTWind AdvisoryILN29 hr
Feb 26, 3:15 AM ESTWind AdvisoryILN42 hr
Feb 27, 12:59 PM ESTMesoscale DiscussionSPC91 min
Feb 27, 1:28 PM ESTTornado WatchSPC5 hr
Feb 27, 2:13 PM ESTMesoscale DiscussionSPC62 min
Feb 27, 2:36 PM ESTSevere Thunderstorm WarningILN39 min
Feb 27, 2:43 PM ESTTornado WarningILN32 min
Mar 1, 6:43 PM ESTSpecial Weather StatementILN32 min
Mar 2, 3:08 AM ESTFlood WatchILN42 hr
Mar 2, 2:34 PM ESTWind AdvisoryILN37 hr
Mar 3, 11:49 AM ESTAreal Flood AdvisoryILN4 hr
Mar 3, 3:05 PM ESTAreal Flood WarningILN5 hr
Mar 3, 3:52 PM ESTAreal Flood WarningILN17 hr
Mar 14, 5:48 AM EDTWinter Weather AdvisoryILN4 hr
Mar 22, 3:01 PM EDTFlood WatchILN62 hr
Mar 24, 12:37 PM EDTWind AdvisoryILN31 hr
Mar 31, 3:36 AM EDTWind AdvisoryILN31 hr
Mar 31, 3:11 PM EDTHigh Wind WarningILN26 hr
Mar 31, 11:09 PM EDTTornado WatchSPC4 hr
Apr 1, 12:49 AM EDTSevere Thunderstorm WarningILN41 min
Apr 1, 1:19 AM EDTSevere Thunderstorm WarningILN41 min
Apr 4, 2:28 PM EDTWind AdvisoryILN27 hr
Apr 5, 10:25 AM EDTTornado WatchSPC7 hr
Apr 5, 1:36 PM EDTMesoscale DiscussionSPC84 min
Apr 5, 4:02 PM EDTSpecial Weather StatementILN28 min
Apr 18, 1:04 PM EDTFrost AdvisoryILN20 hr
Apr 19, 3:20 PM EDTRed Flag WarningILN29 hr
Apr 23, 3:58 AM EDTFreeze WarningILN29 hr
Apr 24, 2:43 PM EDTFreeze WarningILN18 hr
Apr 26, 12:20 PM EDTFrost AdvisoryILN21 hr
May 7, 5:42 AM EDTSpecial Weather StatementILN33 min
May 7, 6:22 AM EDTAreal Flood AdvisoryILN3 hr
May 7, 6:49 AM EDTFlash Flood WarningILN3 hr
Jun 11, 6:48 PM EDTSpecial Weather StatementILN27 min
Jun 11, 6:53 PM EDTSevere Thunderstorm WarningILN37 min
Jun 11, 7:00 PM EDTTornado WarningILN30 min
Jun 11, 7:17 PM EDTTornado WarningILN28 min
Jun 25, 3:46 PM EDTMesoscale DiscussionSPC89 min
Jun 25, 4:18 PM EDTTornado WatchSPC4 hr
Jun 29, 3:59 PM EDTMesoscale DiscussionSPC2 hr
Jun 29, 5:42 PM EDTSpecial Weather StatementILN48 min
Jul 1, 11:26 PM EDTSpecial Weather StatementILN49 min
Jul 2, 2:05 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 4:41 PM EDTMesoscale DiscussionSPC94 min
Jul 2, 5:50 PM EDTSevere Thunderstorm WarningILN40 min
Jul 16, 6:45 PM EDTMesoscale DiscussionSPC90 min
Jul 17, 4:31 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 17, 7:05 PM EDTSevere Thunderstorm WarningILN40 min
Jul 17, 7:42 PM EDTSevere Thunderstorm WarningILN33 min
Jul 17, 7:47 PM EDTMesoscale DiscussionSPC88 min
Jul 17, 8:01 PM EDTSevere Thunderstorm WarningILN29 min
Jul 17, 8:10 PM EDTSevere Thunderstorm WarningILN50 min
Jul 17, 8:23 PM EDTSevere Thunderstorm WarningILN52 min
Jul 17, 8:48 PM EDTSevere Thunderstorm WarningILN42 min
Jul 17, 9:03 PM EDTAreal Flood AdvisoryILN107 min
Jul 20, 2:45 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 20, 9:24 PM EDTSpecial Weather StatementILN36 min
Jul 20, 9:34 PM EDTSevere Thunderstorm WarningILN28 min
Jul 24, 7:34 AM EDTSpecial Weather StatementILN26 min
Jul 24, 8:04 AM EDTSpecial Weather StatementILN26 min
Jul 24, 2:49 PM EDTMesoscale DiscussionSPC116 min
Jul 24, 3:37 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 24, 6:12 PM EDTMesoscale DiscussionSPC93 min
Jul 26, 3:21 AM EDTHeat AdvisoryILN66 hr
Jul 27, 3:26 PM EDTExcessive Heat WarningILN20 hr
Jul 29, 1:57 AM EDTMesoscale DiscussionSPC2 hr
Jul 29, 2:52 AM EDTSevere Thunderstorm WatchSPC6 hr
Jul 29, 4:11 AM EDTSpecial Weather StatementILN49 min
Jul 29, 4:15 AM EDTSevere Thunderstorm WarningILN30 min
Jul 29, 4:25 AM EDTSevere Thunderstorm WarningILN36 min
Aug 9, 12:09 PM EDTFlood WatchILN14 hr
Aug 22, 3:28 AM EDTExcessive Heat WatchILN48 hr
Aug 23, 2:18 PM EDTExcessive Heat WarningILN30 hr
Aug 24, 2:30 PM EDTHeat AdvisoryILN28 hr
Sep 28, 9:16 PM EDTDense Fog AdvisoryILN14 hr
Oct 9, 12:50 PM EDTFrost AdvisoryILN20 hr
Oct 10, 1:07 PM EDTFrost AdvisoryILN20 hr
Oct 22, 1:37 AM EDTFrost AdvisoryILN31 hr
Oct 29, 2:46 PM EDTFreeze WatchILN12 hr
Oct 30, 3:02 AM EDTFreeze WarningILN31 hr
Oct 31, 9:57 PM EDTSpecial Weather StatementILN33 min
Dec 3, 6:35 AM ESTDense Fog AdvisoryILN3 hr
Dec 17, 1:37 PM ESTWinter Weather AdvisoryILN28 hr
Dec 18, 12:14 PM ESTSpecial Weather StatementILN46 min
Dec 18, 12:52 PM ESTSpecial Weather StatementILN23 min
Dec 23, 8:01 PM ESTDense Fog AdvisoryILN15 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 archive20222024

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.