Alert archive / Indiana / Sullivan County
Weather alerts in Sullivan County, Indiana, 2024
108 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sullivan County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 108
- Warnings
- 26
- Watches
- 19
- Advisories
- 23
- Busiest month
- April22 alerts
- Busiest day
- April 2, 20249 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sullivan County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 10 | 17% | 2 | 100% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 28 | 6 | 79% | 13 | 46% | 14 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 151 | 89 | 41% | 204 | 79% | 21 min |
| NWS Indianapolis, IN: flash flood warnings | 10 | 6 | 40% | 6 | 100% | 60 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 11, 11:44 AM EST | High Wind Watch | IND | 15 hr |
| Jan 12, 2:58 AM EST | Wind Advisory | IND | 33 hr |
| Jan 13, 2:21 AM EST | Wind Chill Advisory | IND | 58 hr |
| Jan 18, 3:14 PM EST | Wind Chill Advisory | IND | 43 hr |
| Jan 21, 3:22 PM EST | Winter Weather Advisory | IND | 43 hr |
| Jan 23, 12:46 PM EST | Dense Fog Advisory | IND | 21 hr |
| Jan 24, 4:05 PM EST | Dense Fog Advisory | IND | 20 hr |
| Jan 25, 11:02 AM EST | River Flood Warning | IND | 13 days |
| Jan 25, 11:02 AM EST | River Flood Warning | IND | 14 days |
| Jan 25, 11:02 AM EST | River Flood Warning | IND | 11 days |
| Feb 16, 2:58 AM EST | Winter Weather Advisory | IND | 22 hr |
| Feb 16, 4:04 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 27, 6:47 PM EST | Mesoscale Discussion | SPC | 88 min |
| Feb 27, 8:46 PM EST | Mesoscale Discussion | SPC | 119 min |
| Feb 27, 10:29 PM EST | Tornado Watch | SPC | 10 hr |
| Feb 28, 12:50 AM EST | Mesoscale Discussion | SPC | 85 min |
| Feb 28, 2:21 AM EST | Severe Thunderstorm Warning | IND | 39 min |
| Mar 14, 8:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 14, 10:48 AM EDT | Severe Thunderstorm Warning | IND | 27 min |
| Mar 14, 10:49 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 14, 4:36 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 14, 5:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 14, 7:54 PM EDT | Severe Thunderstorm Warning | IND | 36 min |
| Mar 14, 8:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Mar 14, 8:52 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Mar 14, 9:19 PM EDT | Severe Thunderstorm Warning | IND | 56 min |
| Mar 14, 10:02 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Mar 24, 3:07 PM EDT | Wind Advisory | IND | 51 hr |
| Mar 31, 4:34 AM EDT | Special Weather Statement | IND | 26 min |
| Apr 1, 10:57 AM EDT | Flood Watch | IND | 33 hr |
| Apr 1, 3:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 1, 7:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 1, 8:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 1, 8:38 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 2, 2:16 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Apr 2, 2:22 AM EDT | Special Weather Statement | IND | 23 min |
| Apr 2, 11:17 AM EDT | River Flood Warning | IND | 20 days |
| Apr 2, 11:17 AM EDT | River Flood Warning | IND | 22 days |
| Apr 2, 11:17 AM EDT | River Flood Warning | IND | 23 days |
| Apr 2, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 2, 1:27 PM EDT | Areal Flood Advisory | IND | 8 hr |
| Apr 4, 3:19 PM EDT | Freeze Watch | IND | 12 hr |
| Apr 5, 3:01 AM EDT | Freeze Warning | IND | 31 hr |
| Apr 18, 7:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 18, 7:36 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 18, 9:20 PM EDT | Severe Thunderstorm Warning | IND | 55 min |
| Apr 18, 10:14 PM EDT | Severe Thunderstorm Warning | IND | 61 min |
| Apr 21, 3:15 AM EDT | Frost Advisory | IND | 30 hr |
| Apr 29, 11:27 AM EDT | River Flood Warning | IND | 5 days |
| Apr 29, 11:27 AM EDT | River Flood Warning | IND | 5 days |
| Apr 30, 10:56 AM EDT | River Flood Warning | IND | 34 hr |
| May 7, 2:28 PM EDT | Tornado Watch | SPC | 12 hr |
| May 7, 3:53 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 7, 9:57 PM EDT | Special Weather Statement | IND | 48 min |
| May 7, 10:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 18, 2:14 AM EDT | Dense Fog Advisory | IND | 7 hr |
| May 22, 3:18 AM EDT | Special Weather Statement | IND | 27 min |
| May 26, 10:24 AM EDT | Special Weather Statement | IND | 51 min |
| May 26, 6:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 26, 7:27 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 26, 9:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 26, 9:30 PM EDT | Severe Thunderstorm Warning | IND | 45 min |
| May 26, 10:12 PM EDT | Severe Thunderstorm Warning | IND | 48 min |
| May 26, 10:30 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Jun 5, 11:38 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 17, 6:27 PM EDT | Special Weather Statement | IND | 33 min |
| Jun 25, 12:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 25, 1:10 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 25, 2:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 25, 2:29 PM EDT | Severe Thunderstorm Warning | IND | 46 min |
| Jun 25, 3:02 PM EDT | Severe Thunderstorm Warning | IND | 28 min |
| Jun 29, 12:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 29, 6:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 3, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 3:07 PM EDT | Tornado Watch | SPC | 10 hr |
| Jul 12, 11:07 AM EDT | River Flood Warning | IND | 47 hr |
| Jul 12, 11:07 AM EDT | River Flood Warning | IND | 66 hr |
| Jul 15, 8:44 AM EDT | Heat Advisory | IND | 11 hr |
| Jul 15, 2:13 PM EDT | Flood Watch | IND | 28 hr |
| Jul 15, 10:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 15, 10:59 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 15, 11:54 PM EDT | Special Weather Statement | IND | 36 min |
| Jul 16, 12:53 AM EDT | Special Weather Statement | IND | 37 min |
| Jul 29, 1:47 PM EDT | Special Weather Statement | IND | 28 min |
| Jul 29, 4:58 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 29, 8:48 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 30, 10:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 30, 11:06 AM EDT | Severe Thunderstorm Warning | IND | 39 min |
| Jul 31, 1:03 PM EDT | Special Weather Statement | IND | 57 min |
| Jul 31, 1:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 31, 1:47 PM EDT | Special Weather Statement | IND | 43 min |
| Jul 31, 1:57 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 1, 12:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 1, 1:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 2:45 PM EDT | Excessive Heat Watch | IND | 24 hr |
| Aug 26, 2:44 PM EDT | Heat Advisory | IND | 30 hr |
| Aug 27, 2:39 PM EDT | Heat Advisory | IND | 28 hr |
| Sep 21, 1:15 AM EDT | Dense Fog Advisory | IND | 8 hr |
| Sep 26, 1:57 PM EDT | Wind Advisory | IND | 32 hr |
| Sep 27, 3:34 AM EDT | High Wind Warning | IND | 18 hr |
| Oct 15, 3:39 AM EDT | Frost Advisory | IND | 29 hr |
| Oct 16, 1:07 PM EDT | Freeze Warning | IND | 20 hr |
| Nov 30, 2:46 AM EST | Winter Weather Advisory | IND | 22 hr |
| Dec 4, 3:51 AM EST | Wind Advisory | IND | 27 hr |
| Dec 4, 10:39 PM EST | Special Weather Statement | IND | 51 min |
| Dec 10, 7:12 AM EST | Dense Fog Advisory | IND | 3 hr |
| Dec 29, 2:16 AM EST | Wind Advisory | IND | 18 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 | 12 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 28 |
| Special Weather Statement | 12 |
| Flooding | |
| River Flood Warning | 11 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
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.