Alert archive / Indiana / Shelby County
Weather alerts in Shelby County, Indiana, 2022
119 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Shelby County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 119
- Warnings
- 33
- Watches
- 15
- Advisories
- 33
- Busiest month
- June20 alerts
- Busiest day
- March 7, 202211 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Shelby County in 2022 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Shelby County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| Severe thunderstorm warnings | 12 | 8 | 33% | 6 | 100% | 9 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 19 | 2 | 89% | 11 | 27% | 19 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 116 | 65 | 44% | 158 | 71% | 18 min |
| NWS Indianapolis, IN: flash flood warnings | 12 | 9 | 25% | 16 | 94% | 73 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 4, 2:48 PM EST | Wind Advisory | IND | 27 hr |
| Jan 8, 2:26 PM EST | Winter Weather Advisory | IND | 8 hr |
| Jan 25, 2:52 AM EST | Wind Chill Advisory | IND | 32 hr |
| Jan 31, 3:49 AM EST | Winter Storm Watch | IND | 35 hr |
| Feb 1, 3:52 AM EST | Winter Storm Warning | IND | 69 hr |
| Feb 3, 3:21 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 4, 12:48 AM EST | Winter Weather Advisory | IND | 6 hr |
| Feb 15, 3:17 AM EST | Flood Watch | IND | 64 hr |
| Feb 15, 3:38 PM EST | Wind Advisory | IND | 27 hr |
| Feb 17, 7:52 AM EST | Areal Flood Warning | IND | 26 hr |
| Feb 17, 11:14 AM EST | River Flood Warning | IND | 47 hr |
| Feb 17, 11:14 AM EST | River Flood Warning | IND | 4 days |
| Feb 21, 10:08 AM EST | Flood Watch | IND | 27 hr |
| Feb 22, 12:04 PM EST | River Flood Warning | IND | 47 hr |
| Feb 22, 4:06 PM EST | Areal Flood Advisory | IND | 5 hr |
| Feb 23, 4:23 PM EST | Winter Weather Advisory | IND | 36 hr |
| Feb 24, 1:15 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 24, 6:24 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 6, 1:03 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 6, 2:26 AM EST | Mesoscale Discussion | SPC | 94 min |
| Mar 6, 6:04 PM EST | Flood Watch | IND | 14 hr |
| Mar 7, 1:15 AM EST | Special Weather Statement | IND | 30 min |
| Mar 7, 1:28 AM EST | Areal Flood Advisory | IND | 5 hr |
| Mar 7, 1:49 AM EST | Special Weather Statement | IND | 26 min |
| Mar 7, 2:07 AM EST | Special Weather Statement | IND | 23 min |
| Mar 7, 2:29 AM EST | Severe Thunderstorm Warning | IND | 31 min |
| Mar 7, 2:36 AM EST | Areal Flood Advisory | IND | 3 hr |
| Mar 7, 3:17 AM EST | Areal Flood Warning | IND | 38 hr |
| Mar 7, 5:09 AM EST | Areal Flood Warning | IND | 36 hr |
| Mar 7, 5:13 AM EST | Areal Flood Warning | IND | 36 hr |
| Mar 7, 11:13 AM EST | River Flood Warning | IND | 4 days |
| Mar 7, 11:13 AM EST | River Flood Warning | IND | 47 hr |
| Mar 23, 12:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 25, 9:14 PM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Mar 25, 9:41 PM EDT | Severe Thunderstorm Warning | IND | 34 min |
| Mar 29, 3:38 PM EDT | Wind Advisory | IND | 30 hr |
| Mar 30, 7:09 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 11, 10:55 AM EDT | Severe Thunderstorm Warning | IND | 24 min |
| Apr 13, 7:17 PM EDT | Severe Thunderstorm Warning | IND | 43 min |
| Apr 13, 8:08 PM EDT | Special Weather Statement | IND | 37 min |
| Apr 15, 3:43 AM EDT | Wind Advisory | IND | 16 hr |
| Apr 16, 2:45 AM EDT | Freeze Warning | IND | 30 hr |
| Apr 26, 3:50 AM EDT | Frost Advisory | IND | 30 hr |
| May 3, 1:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 2:06 PM EDT | Mesoscale Discussion | SPC | 69 min |
| May 14, 2:07 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 3:38 AM EDT | Dense Fog Advisory | IND | 5 hr |
| May 19, 8:58 PM EDT | Flood Watch | IND | 11 hr |
| May 21, 11:06 AM EDT | Mesoscale Discussion | SPC | 114 min |
| May 21, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 21, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 21, 3:22 PM EDT | Special Weather Statement | IND | 23 min |
| May 21, 3:53 PM EDT | Severe Thunderstorm Warning | IND | 37 min |
| May 21, 3:58 PM EDT | Severe Thunderstorm Warning | IND | 32 min |
| May 21, 4:02 PM EDT | Tornado Warning | IND | 28 min |
| May 21, 4:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 25, 5:29 PM EDT | Special Weather Statement | IND | 31 min |
| Jun 1, 2:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 1, 6:18 PM EDT | Severe Thunderstorm Warning | IND | 27 min |
| Jun 1, 7:04 PM EDT | Severe Thunderstorm Warning | IND | 26 min |
| Jun 1, 7:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 6, 3:35 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 2:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 8, 2:29 PM EDT | Tornado Watch | SPC | 8 hr |
| Jun 8, 4:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 11:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 3:46 PM EDT | Heat Advisory | IND | 29 hr |
| Jun 13, 3:40 AM EDT | Heat Advisory | IND | 36 hr |
| Jun 13, 1:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 13, 3:59 PM EDT | Severe Thunderstorm Warning | IND | 31 min |
| Jun 13, 4:37 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Jun 13, 4:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 14, 3:34 AM EDT | Excessive Heat Warning | IND | 41 hr |
| Jun 15, 3:32 PM EDT | Heat Advisory | IND | 29 hr |
| Jun 22, 2:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 1, 7:47 PM EDT | Special Weather Statement | IND | 28 min |
| Jul 4, 2:42 PM EDT | Heat Advisory | IND | 49 hr |
| Jul 6, 3:50 AM EDT | Heat Advisory | IND | 11 hr |
| Jul 6, 12:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 3:20 PM EDT | Heat Advisory | IND | 29 hr |
| Jul 23, 3:54 AM EDT | Heat Advisory | IND | 16 hr |
| Jul 24, 4:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 6:29 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 27, 6:57 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Jul 27, 8:22 AM EDT | Flash Flood Warning | IND | 3 hr |
| Aug 1, 8:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 9:14 AM EDT | Severe Thunderstorm Warning | IND | 46 min |
| Aug 1, 6:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Aug 1, 8:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 3, 6:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 29, 6:45 PM EDT | Special Weather Statement | IND | 30 min |
| Aug 29, 7:44 PM EDT | Areal Flood Advisory | IND | 4 hr |
| Sep 3, 11:25 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Sep 3, 1:32 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Sep 11, 2:51 PM EDT | Special Weather Statement | IND | 24 min |
| Sep 14, 1:25 AM EDT | Dense Fog Advisory | IND | 7 hr |
| Sep 20, 5:55 AM EDT | Dense Fog Advisory | IND | 3 hr |
| Oct 7, 2:54 AM EDT | Frost Advisory | IND | 30 hr |
| Oct 7, 2:54 AM EDT | Freeze Watch | IND | 12 hr |
| Oct 8, 2:09 PM EDT | Frost Advisory | IND | 19 hr |
| Oct 13, 3:56 AM EDT | Fire Weather Watch | IND | 11 hr |
| Oct 13, 3:56 AM EDT | Red Flag Warning | IND | 11 hr |
| Oct 13, 2:57 PM EDT | Red Flag Warning | IND | 29 hr |
| Oct 16, 3:51 AM EDT | Freeze Watch | IND | 11 hr |
| Oct 16, 2:55 PM EDT | Freeze Warning | IND | 43 hr |
| Oct 18, 3:00 PM EDT | Freeze Warning | IND | 19 hr |
| Oct 19, 10:41 AM EDT | Freeze Warning | IND | 23 hr |
| Oct 19, 2:32 PM EDT | Red Flag Warning | IND | 29 hr |
| Nov 4, 3:37 AM EDT | Wind Advisory | IND | 40 hr |
| Nov 12, 9:10 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Nov 26, 12:11 AM EST | Dense Fog Advisory | IND | 9 hr |
| Nov 29, 11:50 AM EST | Wind Advisory | IND | 11 hr |
| Dec 19, 3:17 PM EST | Winter Storm Watch | IND | 45 hr |
| Dec 21, 12:13 PM EST | Winter Storm Warning | IND | 67 hr |
| Dec 22, 4:39 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 3:07 AM EST | Wind Chill Advisory | IND | 10 hr |
| Dec 24, 1:43 PM EST | Wind Chill Advisory | IND | 20 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 archive20212023
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.