Alert archive / Indiana / Delaware County

Weather alerts in Delaware County, Indiana, 2025

132 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Delaware County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts
132
Warnings
32
Watches
14
Advisories
46
Busiest month
July25 alerts
Busiest day
April 3, 202511 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 2 tornado warnings covering Delaware County in 2025 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 15 minutes after it went out.

Delaware County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%1100%15 min
Severe thunderstorm warnings13931%2190%23 min
Flash flood warnings10100%30%

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Indianapolis, IN: tornado warnings542063%3982%13 min
NWS Indianapolis, IN: severe thunderstorm warnings21513736%40789%23 min
NWS Indianapolis, IN: flash flood warnings331652%2669%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 2, 3:18 PM ESTWinter Storm WatchIND35 hr
Jan 4, 2:30 AM ESTWinter Storm WarningIND60 hr
Jan 4, 2:30 AM ESTWinter Weather AdvisoryIND26 hr
Jan 9, 3:21 AM ESTWinter Weather AdvisoryIND48 hr
Jan 18, 3:28 AM ESTExtreme Cold WatchIND11 hr
Jan 18, 2:50 PM ESTCold Weather AdvisoryIND4 days
Jan 23, 1:36 PM ESTSpecial Weather StatementIND84 min
Feb 5, 10:04 AM ESTWinter Weather AdvisoryIND18 hr
Feb 5, 9:43 PM ESTMesoscale DiscussionSPC6 hr
Feb 6, 2:49 AM ESTDense Fog AdvisoryIND5 hr
Feb 11, 2:29 PM ESTWinter Weather AdvisoryIND35 hr
Feb 12, 3:29 PM ESTMesoscale DiscussionSPC4 hr
Feb 14, 3:09 PM ESTWinter Weather AdvisoryIND17 hr
Feb 15, 2:04 PM ESTWinter Weather AdvisoryIND29 hr
Feb 17, 6:35 PM ESTCold Weather AdvisoryIND14 hr
Feb 27, 2:10 PM ESTWind AdvisoryIND32 hr
Feb 27, 4:19 PM ESTMesoscale DiscussionSPC2 hr
Mar 5, 8:40 AM ESTSpecial Weather StatementIND35 min
Mar 5, 11:38 AM ESTWind AdvisoryIND13 hr
Mar 13, 1:23 PM EDTWind AdvisoryIND53 hr
Mar 15, 2:09 AM EDTMesoscale DiscussionSPC96 min
Mar 15, 2:36 AM EDTTornado WatchSPC6 hr
Mar 15, 3:48 PM EDTMesoscale DiscussionSPC87 min
Mar 18, 2:53 PM EDTWind AdvisoryIND30 hr
Mar 19, 6:55 PM EDTSevere Thunderstorm WatchSPC5 hr
Mar 19, 8:48 PM EDTMesoscale DiscussionSPC87 min
Mar 19, 10:57 PM EDTSpecial Weather StatementIND33 min
Mar 30, 1:02 PM EDTTornado WatchSPC7 hr
Mar 30, 3:05 PM EDTMesoscale DiscussionSPC115 min
Mar 31, 11:51 AM EDTFlood WatchIND6 days
Apr 1, 2:48 PM EDTWind AdvisoryIND33 hr
Apr 2, 8:14 AM EDTSpecial Weather StatementIND16 min
Apr 2, 8:45 PM EDTMesoscale DiscussionSPC2 hr
Apr 2, 9:13 PM EDTTornado WatchSPC7 hr
Apr 2, 9:18 PM EDTSevere Thunderstorm Warning Destructive damage threatIND42 min
Apr 2, 9:20 PM EDTMesoscale DiscussionSPC85 min
Apr 2, 9:43 PM EDTSevere Thunderstorm Warning Considerable damage threatIND32 min
Apr 2, 9:49 PM EDTTornado WarningIND26 min
Apr 2, 9:52 PM EDTSevere Thunderstorm Warning Destructive damage threatIND38 min
Apr 2, 10:12 PM EDTTornado WarningIND18 min
Apr 2, 10:46 PM EDTMesoscale DiscussionSPC89 min
Apr 2, 10:59 PM EDTSevere Thunderstorm WarningIND46 min
Apr 3, 2:39 AM EDTRiver Flood WarningIND21 days
Apr 3, 11:05 PM EDTRiver Flood WarningIND4 days
Apr 5, 7:08 AM EDTAreal Flood WarningIND6 hr
Apr 5, 12:20 PM EDTAreal Flood WarningIND20 hr
Apr 6, 2:55 AM EDTFreeze WatchIND24 hr
Apr 7, 2:54 AM EDTFreeze WarningIND31 hr
Apr 8, 2:41 PM EDTFreeze WarningIND18 hr
Apr 11, 2:42 AM EDTFreeze WarningIND30 hr
Apr 15, 3:21 AM EDTFrost AdvisoryIND30 hr
Apr 19, 5:46 AM EDTSevere Thunderstorm Warning Considerable damage threatIND44 min
Apr 19, 6:14 AM EDTSevere Thunderstorm Warning Considerable damage threatIND31 min
Apr 29, 12:01 PM EDTMesoscale DiscussionSPC89 min
May 15, 7:50 PM EDTMesoscale DiscussionSPC85 min
May 16, 3:59 PM EDTTornado WatchSPC8 hr
May 16, 6:51 PM EDTMesoscale DiscussionSPC114 min
May 16, 7:23 PM EDTSevere Thunderstorm WarningIND52 min
May 29, 1:30 AM EDTDense Fog AdvisoryIND8 hr
Jun 6, 12:14 AM EDTRiver Flood WarningIND13 hr
Jun 8, 12:28 AM EDTAreal Flood AdvisoryIND5 hr
Jun 8, 1:46 AM EDTAreal Flood AdvisoryIND5 hr
Jun 8, 5:23 AM EDTRiver Flood WarningIND23 hr
Jun 9, 11:30 AM EDTRiver Flood WarningIND13 hr
Jun 14, 1:05 AM EDTAreal Flood AdvisoryIND3 hr
Jun 14, 6:31 AM EDTAreal Flood AdvisoryIND104 min
Jun 18, 1:01 PM EDTTornado WatchSPC7 hr
Jun 18, 3:38 PM EDTMesoscale DiscussionSPC2 hr
Jun 18, 4:08 PM EDTMesoscale DiscussionSPC97 min
Jun 18, 4:58 PM EDTSevere Thunderstorm Warning Considerable damage threatIND47 min
Jun 18, 5:23 PM EDTSevere Thunderstorm WarningIND37 min
Jun 20, 3:10 AM EDTHeat AdvisoryIND8 days
Jun 25, 2:22 PM EDTMesoscale DiscussionSPC113 min
Jun 26, 2:07 PM EDTMesoscale DiscussionSPC113 min
Jun 27, 4:25 PM EDTSpecial Weather StatementIND35 min
Jun 27, 5:04 PM EDTSpecial Weather StatementIND26 min
Jul 6, 1:09 PM EDTMesoscale DiscussionSPC2 hr
Jul 12, 12:42 PM EDTMesoscale DiscussionSPC3 hr
Jul 12, 4:31 PM EDTSevere Thunderstorm WarningIND29 min
Jul 12, 4:59 PM EDTSevere Thunderstorm WarningIND31 min
Jul 12, 5:03 PM EDTSpecial Weather StatementIND27 min
Jul 13, 7:58 PM EDTAreal Flood AdvisoryIND2 hr
Jul 19, 3:39 PM EDTSpecial Weather StatementIND36 min
Jul 19, 4:11 PM EDTSpecial Weather StatementIND34 min
Jul 19, 4:48 PM EDTAreal Flood AdvisoryIND117 min
Jul 20, 3:03 AM EDTFlood WatchIND24 hr
Jul 20, 12:03 PM EDTAreal Flood AdvisoryIND14 min
Jul 20, 12:17 PM EDTAreal Flood WarningIND3 hr
Jul 23, 2:33 AM EDTHeat AdvisoryIND41 hr
Jul 24, 9:50 PM EDTAreal Flood AdvisoryIND3 hr
Jul 25, 2:53 PM EDTSpecial Weather StatementIND37 min
Jul 25, 3:07 PM EDTAreal Flood AdvisoryIND3 hr
Jul 26, 5:34 PM EDTMesoscale DiscussionSPC116 min
Jul 26, 8:29 PM EDTSpecial Weather StatementIND46 min
Jul 26, 8:50 PM EDTAreal Flood AdvisoryIND2 hr
Jul 26, 9:10 PM EDTAreal Flood AdvisoryIND3 hr
Jul 26, 9:24 PM EDTFlash Flood WarningIND3 hr
Jul 27, 3:25 AM EDTHeat AdvisoryIND65 hr
Jul 30, 6:50 PM EDTSpecial Weather StatementIND40 min
Jul 30, 7:31 PM EDTAreal Flood AdvisoryIND3 hr
Jul 31, 11:18 AM EDTRiver Flood WarningIND13 hr
Aug 16, 12:28 PM EDTSpecial Weather StatementIND32 min
Aug 16, 9:28 PM EDTSpecial Weather StatementIND32 min
Aug 16, 10:05 PM EDTSpecial Weather StatementIND25 min
Aug 19, 2:15 PM EDTMesoscale DiscussionSPC90 min
Sep 22, 8:59 PM EDTDense Fog AdvisoryIND12 hr
Sep 26, 12:55 AM EDTDense Fog AdvisoryIND8 hr
Oct 8, 2:45 PM EDTFrost AdvisoryIND18 hr
Oct 9, 2:12 PM EDTFrost AdvisoryIND19 hr
Oct 18, 6:14 PM EDTSpecial Weather StatementIND31 min
Oct 18, 10:17 PM EDTWind AdvisoryIND10 hr
Oct 22, 12:57 PM EDTFreeze WatchIND13 hr
Oct 23, 2:18 AM EDTFreeze WarningIND31 hr
Nov 9, 8:40 PM ESTWinter Weather AdvisoryIND15 hr
Nov 20, 8:21 PM ESTDense Fog AdvisoryIND14 hr
Nov 25, 10:15 AM ESTWind AdvisoryIND33 hr
Nov 27, 1:38 PM ESTWinter Storm WatchIND24 hr
Nov 28, 1:26 PM ESTWinter Storm WarningIND38 hr
Nov 29, 3:16 PM ESTMesoscale DiscussionSPC4 hr
Dec 1, 3:18 AM ESTWinter Weather AdvisoryIND28 hr
Dec 10, 7:28 PM ESTSpecial Weather StatementIND92 min
Dec 10, 9:00 PM ESTSpecial Weather StatementIND60 min
Dec 12, 2:19 PM ESTCold Weather AdvisoryIND68 hr
Dec 12, 2:19 PM ESTWinter Weather AdvisoryIND37 hr
Dec 13, 3:10 AM ESTWinter Storm WarningIND18 hr
Dec 18, 11:23 AM ESTWind AdvisoryIND9 hr
Dec 24, 1:39 PM ESTDense Fog AdvisoryIND19 hr
Dec 26, 6:15 AM ESTDense Fog AdvisoryIND4 hr
Dec 28, 12:03 AM ESTWind AdvisoryIND41 hr
Dec 28, 3:47 PM ESTTornado WatchSPC6 hr
Dec 28, 7:51 PM ESTSevere Thunderstorm WarningIND39 min
Dec 28, 8:26 PM ESTSevere Thunderstorm WarningIND34 min

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 archive20242026

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.