Alert archive / Indiana / Dearborn County

Weather alerts in Dearborn County, Indiana, 2024

119 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Dearborn County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts
119
Warnings
17
Watches
19
Advisories
36
Busiest month
May26 alerts
Busiest day
April 2, 202414 alerts

Over time

By month

Warning verification

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

1 of 3 tornado warnings covering Dearborn County in 2024 had a tornado report inside them.

Dearborn County, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings3167%0
Severe thunderstorm warnings7614%3100%16 min
Flash flood warnings110%0

Each office's whole area, 2024

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Wilmington, OH: tornado warnings792667%6572%13 min
NWS Wilmington, OH: severe thunderstorm warnings1839051%41459%21 min
NWS Wilmington, OH: flash flood warnings241250%6957%71 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 9, 3:06 AM ESTWind AdvisoryILN29 hr
Jan 11, 1:54 PM ESTWind AdvisoryILN48 hr
Jan 13, 3:29 AM ESTWind Chill AdvisoryILN57 hr
Jan 16, 3:05 AM ESTWind Chill AdvisoryILN31 hr
Jan 17, 9:49 PM ESTWinter Weather AdvisoryILN56 hr
Jan 19, 3:24 AM ESTWind Chill AdvisoryILN33 hr
Jan 22, 3:08 AM ESTWinter Weather AdvisoryILN32 hr
Jan 24, 2:24 PM ESTDense Fog AdvisoryILN23 hr
Feb 16, 3:08 AM ESTWinter Weather AdvisoryILN22 hr
Feb 16, 4:04 PM ESTMesoscale DiscussionSPC4 hr
Feb 16, 7:40 PM ESTMesoscale DiscussionSPC4 hr
Feb 22, 7:58 PM ESTDense Fog AdvisoryILN13 hr
Feb 27, 8:46 PM ESTMesoscale DiscussionSPC119 min
Feb 27, 10:29 PM ESTTornado WatchSPC10 hr
Feb 28, 3:01 AM ESTMesoscale DiscussionSPC119 min
Mar 2, 8:05 AM ESTDense Fog AdvisoryILN119 min
Mar 3, 3:19 AM ESTDense Fog AdvisoryILN7 hr
Mar 14, 10:49 AM EDTSevere Thunderstorm WatchSPC5 hr
Mar 14, 12:55 PM EDTMesoscale DiscussionSPC65 min
Mar 14, 1:24 PM EDTSpecial Weather StatementILN36 min
Mar 14, 5:13 PM EDTTornado WatchSPC7 hr
Mar 14, 9:58 PM EDTMesoscale DiscussionSPC62 min
Mar 31, 12:39 PM EDTFlood WatchILN58 hr
Apr 1, 3:46 PM EDTMesoscale DiscussionSPC119 min
Apr 1, 8:37 PM EDTMesoscale DiscussionSPC83 min
Apr 1, 8:38 PM EDTSevere Thunderstorm WatchSPC6 hr
Apr 2, 4:10 AM EDTMesoscale DiscussionSPC95 min
Apr 2, 5:16 AM EDTSpecial Weather StatementILN29 min
Apr 2, 5:31 AM EDTSevere Thunderstorm WarningILN30 min
Apr 2, 11:58 AM EDTMesoscale DiscussionSPC3 hr
Apr 2, 3:28 PM EDTMesoscale DiscussionSPC92 min
Apr 2, 3:49 PM EDTTornado WatchSPC6 hr
Apr 2, 5:14 PM EDTTornado Warning Tornado observedILN46 min
Apr 2, 5:34 PM EDTMesoscale DiscussionSPC86 min
Apr 2, 5:41 PM EDTSevere Thunderstorm WarningILN49 min
Apr 2, 5:53 PM EDTAreal Flood AdvisoryILN6 hr
Apr 2, 5:54 PM EDTSevere Thunderstorm WarningILN51 min
Apr 2, 6:15 PM EDTMesoscale DiscussionSPC90 min
Apr 4, 3:39 PM EDTFreeze WatchILN12 hr
Apr 5, 3:42 AM EDTFreeze WarningILN29 hr
Apr 6, 9:09 AM EDTFrost AdvisoryILN25 hr
Apr 6, 10:06 AM EDTRiver Flood WarningILN29 hr
Apr 11, 10:22 AM EDTFlood WatchILN16 hr
Apr 11, 11:01 AM EDTAreal Flood AdvisoryILN3 hr
Apr 13, 11:09 PM EDTRiver Flood AdvisoryILN4 days
Apr 19, 12:08 AM EDTMesoscale DiscussionSPC2 hr
Apr 21, 2:58 AM EDTFrost AdvisoryILN30 hr
May 4, 9:21 AM EDTAreal Flood AdvisoryILN3 hr
May 7, 4:33 PM EDTMesoscale DiscussionSPC87 min
May 7, 6:00 PM EDTTornado WatchSPC8 hr
May 7, 7:56 PM EDTMesoscale DiscussionSPC94 min
May 7, 9:05 PM EDTSevere Thunderstorm WarningILN40 min
May 7, 9:18 PM EDTAreal Flood AdvisoryILN4 hr
May 7, 9:24 PM EDTTornado WarningILN36 min
May 7, 9:40 PM EDTFlash Flood WarningILN3 hr
May 7, 9:51 PM EDTTornado WarningILN24 min
May 7, 10:20 PM EDTMesoscale DiscussionSPC55 min
May 8, 12:09 AM EDTAreal Flood AdvisoryILN3 hr
May 8, 12:16 AM EDTMesoscale DiscussionSPC119 min
May 8, 12:39 AM EDTAreal Flood WarningILN8 hr
May 8, 1:57 AM EDTAreal Flood WarningILN7 hr
May 8, 11:26 AM EDTFlood WatchILN15 hr
May 9, 4:06 PM EDTMesoscale DiscussionSPC84 min
May 18, 1:40 AM EDTDense Fog AdvisoryILN8 hr
May 22, 4:18 PM EDTMesoscale DiscussionSPC117 min
May 22, 7:30 PM EDTMesoscale DiscussionSPC90 min
May 22, 7:32 PM EDTSpecial Weather StatementILN28 min
May 26, 12:20 PM EDTMesoscale DiscussionSPC85 min
May 26, 12:26 PM EDTSevere Thunderstorm Warning Considerable damage threatILN66 min
May 26, 1:01 PM EDTSevere Thunderstorm WarningILN44 min
May 26, 1:02 PM EDTSevere Thunderstorm WatchSPC7 hr
May 26, 1:40 PM EDTSpecial Weather StatementILN35 min
May 26, 11:06 PM EDTTornado WatchSPC7 hr
Jun 3, 1:02 AM EDTDense Fog AdvisoryILN8 hr
Jun 16, 3:24 AM EDTExcessive Heat WatchILN24 hr
Jun 17, 3:01 AM EDTHeat AdvisoryILN6 days
Jun 25, 3:57 PM EDTMesoscale DiscussionSPC93 min
Jun 29, 5:05 PM EDTSevere Thunderstorm WatchSPC5 hr
Jun 29, 5:30 PM EDTMesoscale DiscussionSPC90 min
Jun 29, 5:38 PM EDTSevere Thunderstorm Warning Considerable damage threatILN52 min
Jul 3, 2:57 AM EDTHeat AdvisoryILN17 hr
Jul 3, 12:46 PM EDTMesoscale DiscussionSPC2 hr
Jul 4, 8:03 PM EDTSpecial Weather StatementILN27 min
Jul 9, 3:07 PM EDTTornado WatchSPC10 hr
Jul 9, 6:42 PM EDTMesoscale DiscussionSPC93 min
Jul 9, 9:42 PM EDTMesoscale DiscussionSPC93 min
Jul 9, 11:20 PM EDTAreal Flood AdvisoryILN5 hr
Jul 14, 3:41 PM EDTSpecial Weather StatementILN34 min
Jul 14, 4:06 PM EDTSpecial Weather StatementILN39 min
Jul 15, 8:47 AM EDTHeat AdvisoryILN11 hr
Jul 15, 3:18 PM EDTMesoscale DiscussionSPC117 min
Jul 16, 1:38 AM EDTMesoscale DiscussionSPC2 hr
Jul 16, 1:58 AM EDTSpecial Weather StatementILN32 min
Jul 16, 3:24 AM EDTFlood WatchILN18 hr
Jul 24, 5:54 PM EDTSpecial Weather StatementILN36 min
Jul 24, 7:43 PM EDTAreal Flood AdvisoryILN3 hr
Jul 29, 4:58 PM EDTMesoscale DiscussionSPC3 hr
Jul 31, 1:19 PM EDTMesoscale DiscussionSPC116 min
Jul 31, 1:57 PM EDTSevere Thunderstorm WatchSPC6 hr
Aug 1, 12:18 PM EDTMesoscale DiscussionSPC87 min
Aug 1, 1:07 PM EDTSevere Thunderstorm WatchSPC7 hr
Aug 1, 6:15 PM EDTMesoscale DiscussionSPC90 min
Aug 16, 4:51 PM EDTSpecial Weather StatementILN24 min
Aug 26, 2:46 PM EDTHeat AdvisoryILN53 hr
Aug 29, 2:47 AM EDTHeat AdvisoryILN17 hr
Aug 30, 1:28 PM EDTHeat AdvisoryILN6 hr
Sep 6, 3:18 PM EDTMesoscale DiscussionSPC117 min
Sep 24, 12:53 PM EDTMesoscale DiscussionSPC2 hr
Sep 24, 1:45 PM EDTSevere Thunderstorm WatchSPC6 hr
Sep 24, 4:01 PM EDTMesoscale DiscussionSPC119 min
Sep 26, 1:31 PM EDTWind AdvisoryILN31 hr
Sep 27, 3:19 AM EDTHigh Wind WarningILN15 hr
Oct 1, 2:33 AM EDTDense Fog AdvisoryILN6 hr
Oct 15, 3:03 AM EDTFrost AdvisoryILN30 hr
Oct 16, 12:15 PM EDTFreeze WarningILN21 hr
Oct 17, 1:39 PM EDTFrost AdvisoryILN19 hr
Nov 21, 3:10 AM ESTWinter Weather AdvisoryILN24 hr
Dec 4, 11:39 PM ESTSpecial Weather StatementILN51 min
Dec 29, 2:40 AM ESTWind AdvisoryILN20 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 archive20232025

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.