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
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 100% | 15 min |
| Severe thunderstorm warnings | 13 | 9 | 31% | 21 | 90% | 23 min |
| Flash flood warnings | 1 | 0 | 100% | 3 | 0% |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 54 | 20 | 63% | 39 | 82% | 13 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 215 | 137 | 36% | 407 | 89% | 23 min |
| NWS Indianapolis, IN: flash flood warnings | 33 | 16 | 52% | 26 | 69% | 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 2, 3:18 PM EST | Winter Storm Watch | IND | 35 hr |
| Jan 4, 2:30 AM EST | Winter Storm Warning | IND | 60 hr |
| Jan 4, 2:30 AM EST | Winter Weather Advisory | IND | 26 hr |
| Jan 9, 3:21 AM EST | Winter Weather Advisory | IND | 48 hr |
| Jan 18, 3:28 AM EST | Extreme Cold Watch | IND | 11 hr |
| Jan 18, 2:50 PM EST | Cold Weather Advisory | IND | 4 days |
| Jan 23, 1:36 PM EST | Special Weather Statement | IND | 84 min |
| Feb 5, 10:04 AM EST | Winter Weather Advisory | IND | 18 hr |
| Feb 5, 9:43 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 6, 2:49 AM EST | Dense Fog Advisory | IND | 5 hr |
| Feb 11, 2:29 PM EST | Winter Weather Advisory | IND | 35 hr |
| Feb 12, 3:29 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 14, 3:09 PM EST | Winter Weather Advisory | IND | 17 hr |
| Feb 15, 2:04 PM EST | Winter Weather Advisory | IND | 29 hr |
| Feb 17, 6:35 PM EST | Cold Weather Advisory | IND | 14 hr |
| Feb 27, 2:10 PM EST | Wind Advisory | IND | 32 hr |
| Feb 27, 4:19 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 5, 8:40 AM EST | Special Weather Statement | IND | 35 min |
| Mar 5, 11:38 AM EST | Wind Advisory | IND | 13 hr |
| Mar 13, 1:23 PM EDT | Wind Advisory | IND | 53 hr |
| Mar 15, 2:09 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Mar 15, 2:36 AM EDT | Tornado Watch | SPC | 6 hr |
| Mar 15, 3:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Mar 18, 2:53 PM EDT | Wind Advisory | IND | 30 hr |
| Mar 19, 6:55 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 19, 8:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Mar 19, 10:57 PM EDT | Special Weather Statement | IND | 33 min |
| Mar 30, 1:02 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 30, 3:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Mar 31, 11:51 AM EDT | Flood Watch | IND | 6 days |
| Apr 1, 2:48 PM EDT | Wind Advisory | IND | 33 hr |
| Apr 2, 8:14 AM EDT | Special Weather Statement | IND | 16 min |
| Apr 2, 8:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 2, 9:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 2, 9:18 PM EDT | Severe Thunderstorm Warning | IND | 42 min |
| Apr 2, 9:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 2, 9:43 PM EDT | Severe Thunderstorm Warning | IND | 32 min |
| Apr 2, 9:49 PM EDT | Tornado Warning | IND | 26 min |
| Apr 2, 9:52 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Apr 2, 10:12 PM EDT | Tornado Warning | IND | 18 min |
| Apr 2, 10:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 2, 10:59 PM EDT | Severe Thunderstorm Warning | IND | 46 min |
| Apr 3, 2:39 AM EDT | River Flood Warning | IND | 21 days |
| Apr 3, 11:05 PM EDT | River Flood Warning | IND | 4 days |
| Apr 5, 7:08 AM EDT | Areal Flood Warning | IND | 6 hr |
| Apr 5, 12:20 PM EDT | Areal Flood Warning | IND | 20 hr |
| Apr 6, 2:55 AM EDT | Freeze Watch | IND | 24 hr |
| Apr 7, 2:54 AM EDT | Freeze Warning | IND | 31 hr |
| Apr 8, 2:41 PM EDT | Freeze Warning | IND | 18 hr |
| Apr 11, 2:42 AM EDT | Freeze Warning | IND | 30 hr |
| Apr 15, 3:21 AM EDT | Frost Advisory | IND | 30 hr |
| Apr 19, 5:46 AM EDT | Severe Thunderstorm Warning | IND | 44 min |
| Apr 19, 6:14 AM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Apr 29, 12:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 15, 7:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 16, 3:59 PM EDT | Tornado Watch | SPC | 8 hr |
| May 16, 6:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| May 16, 7:23 PM EDT | Severe Thunderstorm Warning | IND | 52 min |
| May 29, 1:30 AM EDT | Dense Fog Advisory | IND | 8 hr |
| Jun 6, 12:14 AM EDT | River Flood Warning | IND | 13 hr |
| Jun 8, 12:28 AM EDT | Areal Flood Advisory | IND | 5 hr |
| Jun 8, 1:46 AM EDT | Areal Flood Advisory | IND | 5 hr |
| Jun 8, 5:23 AM EDT | River Flood Warning | IND | 23 hr |
| Jun 9, 11:30 AM EDT | River Flood Warning | IND | 13 hr |
| Jun 14, 1:05 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Jun 14, 6:31 AM EDT | Areal Flood Advisory | IND | 104 min |
| Jun 18, 1:01 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 18, 3:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 4:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 18, 4:58 PM EDT | Severe Thunderstorm Warning | IND | 47 min |
| Jun 18, 5:23 PM EDT | Severe Thunderstorm Warning | IND | 37 min |
| Jun 20, 3:10 AM EDT | Heat Advisory | IND | 8 days |
| Jun 25, 2:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 26, 2:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 4:25 PM EDT | Special Weather Statement | IND | 35 min |
| Jun 27, 5:04 PM EDT | Special Weather Statement | IND | 26 min |
| Jul 6, 1:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 12:42 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 12, 4:31 PM EDT | Severe Thunderstorm Warning | IND | 29 min |
| Jul 12, 4:59 PM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Jul 12, 5:03 PM EDT | Special Weather Statement | IND | 27 min |
| Jul 13, 7:58 PM EDT | Areal Flood Advisory | IND | 2 hr |
| Jul 19, 3:39 PM EDT | Special Weather Statement | IND | 36 min |
| Jul 19, 4:11 PM EDT | Special Weather Statement | IND | 34 min |
| Jul 19, 4:48 PM EDT | Areal Flood Advisory | IND | 117 min |
| Jul 20, 3:03 AM EDT | Flood Watch | IND | 24 hr |
| Jul 20, 12:03 PM EDT | Areal Flood Advisory | IND | 14 min |
| Jul 20, 12:17 PM EDT | Areal Flood Warning | IND | 3 hr |
| Jul 23, 2:33 AM EDT | Heat Advisory | IND | 41 hr |
| Jul 24, 9:50 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 25, 2:53 PM EDT | Special Weather Statement | IND | 37 min |
| Jul 25, 3:07 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 26, 5:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 26, 8:29 PM EDT | Special Weather Statement | IND | 46 min |
| Jul 26, 8:50 PM EDT | Areal Flood Advisory | IND | 2 hr |
| Jul 26, 9:10 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 26, 9:24 PM EDT | Flash Flood Warning | IND | 3 hr |
| Jul 27, 3:25 AM EDT | Heat Advisory | IND | 65 hr |
| Jul 30, 6:50 PM EDT | Special Weather Statement | IND | 40 min |
| Jul 30, 7:31 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 31, 11:18 AM EDT | River Flood Warning | IND | 13 hr |
| Aug 16, 12:28 PM EDT | Special Weather Statement | IND | 32 min |
| Aug 16, 9:28 PM EDT | Special Weather Statement | IND | 32 min |
| Aug 16, 10:05 PM EDT | Special Weather Statement | IND | 25 min |
| Aug 19, 2:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Sep 22, 8:59 PM EDT | Dense Fog Advisory | IND | 12 hr |
| Sep 26, 12:55 AM EDT | Dense Fog Advisory | IND | 8 hr |
| Oct 8, 2:45 PM EDT | Frost Advisory | IND | 18 hr |
| Oct 9, 2:12 PM EDT | Frost Advisory | IND | 19 hr |
| Oct 18, 6:14 PM EDT | Special Weather Statement | IND | 31 min |
| Oct 18, 10:17 PM EDT | Wind Advisory | IND | 10 hr |
| Oct 22, 12:57 PM EDT | Freeze Watch | IND | 13 hr |
| Oct 23, 2:18 AM EDT | Freeze Warning | IND | 31 hr |
| Nov 9, 8:40 PM EST | Winter Weather Advisory | IND | 15 hr |
| Nov 20, 8:21 PM EST | Dense Fog Advisory | IND | 14 hr |
| Nov 25, 10:15 AM EST | Wind Advisory | IND | 33 hr |
| Nov 27, 1:38 PM EST | Winter Storm Watch | IND | 24 hr |
| Nov 28, 1:26 PM EST | Winter Storm Warning | IND | 38 hr |
| Nov 29, 3:16 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 1, 3:18 AM EST | Winter Weather Advisory | IND | 28 hr |
| Dec 10, 7:28 PM EST | Special Weather Statement | IND | 92 min |
| Dec 10, 9:00 PM EST | Special Weather Statement | IND | 60 min |
| Dec 12, 2:19 PM EST | Cold Weather Advisory | IND | 68 hr |
| Dec 12, 2:19 PM EST | Winter Weather Advisory | IND | 37 hr |
| Dec 13, 3:10 AM EST | Winter Storm Warning | IND | 18 hr |
| Dec 18, 11:23 AM EST | Wind Advisory | IND | 9 hr |
| Dec 24, 1:39 PM EST | Dense Fog Advisory | IND | 19 hr |
| Dec 26, 6:15 AM EST | Dense Fog Advisory | IND | 4 hr |
| Dec 28, 12:03 AM EST | Wind Advisory | IND | 41 hr |
| Dec 28, 3:47 PM EST | Tornado Watch | SPC | 6 hr |
| Dec 28, 7:51 PM EST | Severe Thunderstorm Warning | IND | 39 min |
| Dec 28, 8:26 PM EST | Severe Thunderstorm Warning | IND | 34 min |
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 | 13 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 1 |
| River Flood Warning | 6 |
| Flood Watch | 2 |
| Areal Flood Advisory | 12 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 2 |
| Cold Weather Advisory | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
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.