Alert archive / Indiana / Decatur County
Weather alerts in Decatur County, Indiana, 2012
152 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Decatur County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 152
- Warnings
- 34
- Watches
- 26
- Advisories
- 35
- Busiest month
- July26 alerts
- Busiest day
- January 17, 20127 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 Decatur County in 2012 had a tornado report inside them.
Decatur County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 7 | 61% | 9 | 67% | 23 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Indianapolis, IN: tornado warnings | 24 | 3 | 88% | 5 | 60% | 19 min |
| NWS Indianapolis, IN: severe thunderstorm warnings | 247 | 137 | 45% | 391 | 71% | 20 min |
| NWS Indianapolis, IN: flash flood warnings | 2 | 0 | 100% | 4 | 0% |
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, 3:39 PM EST | Winter Weather Advisory | IND | 45 hr |
| Jan 17, 2:50 AM EST | Mesoscale Discussion | SPC | 85 min |
| Jan 17, 7:18 AM EST | Severe Thunderstorm Warning | IND | 42 min |
| Jan 17, 7:21 AM EST | Areal Flood Advisory | IND | 3 hr |
| Jan 17, 7:23 AM EST | Areal Flood Advisory | IND | 4 hr |
| Jan 17, 7:25 AM EST | Mesoscale Discussion | SPC | 65 min |
| Jan 17, 12:25 PM EST | Areal Flood Advisory | IND | 6 hr |
| Jan 17, 6:31 PM EST | Areal Flood Advisory | IND | 4 hr |
| Jan 20, 3:53 AM EST | Winter Weather Advisory | IND | 24 hr |
| Jan 20, 6:32 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 22, 3:01 PM EST | Wind Advisory | IND | 26 hr |
| Jan 23, 1:52 AM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 23, 2:02 AM EST | Special Weather Statement | IND | 43 min |
| Feb 29, 3:40 AM EST | Wind Advisory | IND | 15 hr |
| Feb 29, 3:40 AM EST | Mesoscale Discussion | SPC | 65 min |
| Mar 2, 3:30 AM EST | Wind Advisory | IND | 22 hr |
| Mar 2, 6:52 AM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 2, 8:50 AM EST | Mesoscale Discussion | SPC | 85 min |
| Mar 2, 1:02 PM EST | Tornado Watch | SPC | 8 hr |
| Mar 2, 1:05 PM EST | Mesoscale Discussion | SPC | 85 min |
| Mar 2, 3:39 PM EST | Severe Thunderstorm Warning | IND | 21 min |
| Mar 7, 3:42 AM EST | Wind Advisory | IND | 15 hr |
| Mar 15, 4:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Mar 17, 9:43 PM EDT | Severe Thunderstorm Warning | IND | 32 min |
| Mar 18, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 23, 6:08 PM EDT | Mesoscale Discussion | SPC | 37 min |
| Mar 23, 6:25 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 23, 9:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Mar 23, 9:08 PM EDT | Severe Thunderstorm Warning | IND | 52 min |
| Mar 23, 10:28 PM EDT | Areal Flood Advisory | IND | 4 hr |
| Mar 23, 11:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Mar 24, 2:29 AM EDT | Areal Flood Advisory | IND | 3 hr |
| Mar 25, 4:10 AM EDT | Freeze Watch | IND | 24 hr |
| Mar 26, 3:48 AM EDT | Freeze Warning | IND | 28 hr |
| Mar 30, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Mar 30, 3:24 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 30, 6:16 PM EDT | Severe Thunderstorm Warning | IND | 44 min |
| Mar 30, 6:56 PM EDT | Severe Thunderstorm Warning | IND | 21 min |
| Mar 30, 7:02 PM EDT | Mesoscale Discussion | SPC | 28 min |
| Mar 30, 8:07 PM EDT | Areal Flood Advisory | IND | 3 hr |
| Apr 1, 9:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Apr 1, 10:03 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 1, 11:09 PM EDT | Severe Thunderstorm Warning | IND | 36 min |
| Apr 1, 11:14 PM EDT | Severe Thunderstorm Warning | IND | 46 min |
| Apr 1, 11:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 5, 2:46 PM EDT | Freeze Watch | IND | 25 hr |
| Apr 6, 3:41 PM EDT | Freeze Warning | IND | 17 hr |
| Apr 9, 3:07 AM EDT | Freeze Watch | IND | 36 hr |
| Apr 10, 2:46 PM EDT | Freeze Watch | IND | 13 hr |
| Apr 10, 2:46 PM EDT | Freeze Warning | IND | 18 hr |
| Apr 11, 4:04 AM EDT | Freeze Warning | IND | 29 hr |
| Apr 15, 12:50 PM EDT | Wind Advisory | IND | 29 hr |
| Apr 22, 4:05 AM EDT | Freeze Watch | IND | 11 hr |
| Apr 25, 11:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 30, 1:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Apr 30, 3:07 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Apr 30, 4:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| May 1, 6:02 AM EDT | Dense Fog Advisory | IND | 4 hr |
| May 1, 2:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 1, 3:01 PM EDT | Tornado Watch | SPC | 7 hr |
| May 1, 3:54 PM EDT | Severe Thunderstorm Warning | IND | 36 min |
| May 1, 4:20 PM EDT | Severe Thunderstorm Warning | IND | 25 min |
| May 1, 4:29 PM EDT | Severe Thunderstorm Warning | IND | 16 min |
| May 1, 6:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 1, 9:33 PM EDT | Mesoscale Discussion | SPC | 57 min |
| May 1, 11:05 PM EDT | Areal Flood Advisory | IND | 3 hr |
| May 2, 3:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| May 4, 2:29 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 7, 4:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 25, 2:49 PM EDT | Heat Advisory | IND | 53 hr |
| Jun 25, 4:32 PM EDT | Red Flag Warning | IND | 5 hr |
| Jun 26, 3:10 PM EDT | Fire Weather Watch | IND | 20 hr |
| Jun 27, 3:26 AM EDT | Heat Advisory | IND | 12 hr |
| Jun 27, 11:17 AM EDT | Red Flag Warning | IND | 34 hr |
| Jun 27, 3:01 PM EDT | Excessive Heat Warning | IND | 4 days |
| Jun 29, 10:22 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 11:49 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 29, 2:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 29, 4:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 30, 4:16 AM EDT | Heat Advisory | IND | 40 hr |
| Jun 30, 5:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 30, 6:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 3:17 PM EDT | Heat Advisory | IND | 29 hr |
| Jul 1, 5:22 PM EDT | Severe Thunderstorm Warning | IND | 38 min |
| Jul 1, 9:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 3, 1:07 PM EDT | Excessive Heat Warning | IND | 4 days |
| Jul 4, 9:56 PM EDT | Special Weather Statement | IND | 64 min |
| Jul 12, 3:34 PM EDT | Special Weather Statement | IND | 26 min |
| Jul 16, 3:33 PM EDT | Heat Advisory | IND | 52 hr |
| Jul 18, 12:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 18, 4:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 19, 3:19 AM EDT | Heat Advisory | IND | 17 hr |
| Jul 19, 3:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 19, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 8:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 23, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 3:18 AM EDT | Heat Advisory | IND | 41 hr |
| Jul 25, 4:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 26, 2:58 AM EDT | Heat Advisory | IND | 14 hr |
| Jul 26, 12:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 2:46 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 26, 4:55 PM EDT | Mesoscale Discussion | SPC | 35 min |
| Jul 27, 1:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 27, 3:42 PM EDT | Severe Thunderstorm Warning | IND | 35 min |
| Jul 27, 5:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 31, 7:34 PM EDT | Severe Thunderstorm Warning | IND | 41 min |
| Aug 4, 5:25 PM EDT | Special Weather Statement | IND | 35 min |
| Aug 5, 5:29 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 5, 7:17 AM EDT | Special Weather Statement | IND | 43 min |
| Aug 9, 8:24 PM EDT | Severe Thunderstorm Warning | IND | 36 min |
| Aug 9, 8:40 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 9, 9:00 PM EDT | Severe Thunderstorm Warning | IND | 14 min |
| Aug 9, 10:53 PM EDT | Severe Thunderstorm Warning | IND | 49 min |
| Aug 16, 11:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 16, 1:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 16, 4:27 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 16, 6:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 10:37 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 5, 2:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Sep 5, 2:31 PM EDT | Special Weather Statement | IND | 44 min |
| Sep 6, 5:30 AM EDT | Dense Fog Advisory | IND | 5 hr |
| Sep 7, 11:09 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 7, 4:41 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 8:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 7, 9:45 PM EDT | Severe Thunderstorm Warning | IND | 45 min |
| Sep 7, 10:48 PM EDT | Tornado Warning | IND | 13 min |
| Sep 21, 7:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 22, 2:07 PM EDT | Frost Advisory | IND | 43 hr |
| Oct 6, 3:51 AM EDT | Freeze Watch | IND | 24 hr |
| Oct 7, 3:40 AM EDT | Freeze Warning | IND | 29 hr |
| Oct 10, 4:01 AM EDT | Freeze Warning | IND | 29 hr |
| Oct 13, 3:27 PM EDT | Wind Advisory | IND | 30 hr |
| Oct 27, 2:37 PM EDT | Freeze Warning | IND | 13 hr |
| Oct 28, 3:32 PM EDT | Wind Advisory | IND | 48 hr |
| Dec 7, 5:30 AM EST | Dense Fog Advisory | IND | 7 hr |
| Dec 19, 3:42 PM EST | Wind Advisory | IND | 21 hr |
| Dec 19, 3:50 PM EST | Winter Weather Advisory | IND | 42 hr |
| Dec 20, 12:51 PM EST | High Wind Warning | IND | 15 hr |
| Dec 20, 2:36 PM EST | Special Weather Statement | IND | 24 min |
| Dec 21, 4:01 AM EST | Wind Advisory | IND | 10 hr |
| Dec 23, 3:41 PM EST | Winter Storm Watch | IND | 37 hr |
| Dec 25, 4:43 AM EST | Winter Storm Warning | IND | 8 hr |
| Dec 25, 12:45 PM EST | Blizzard Warning | IND | 26 hr |
| Dec 26, 3:25 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 3:05 PM EST | Winter Weather Advisory | IND | 4 hr |
| Dec 28, 1:48 PM EST | Winter Weather Advisory | IND | 19 hr |
| Dec 28, 9:18 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 28, 9:58 PM EST | Winter Storm Warning | IND | 11 hr |
| Dec 31, 3:15 AM EST | Winter Weather Advisory | IND | 28 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 15 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 50 |
| Special Weather Statement | 7 |
| Flooding | |
| Areal Flood Advisory | 8 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 6 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.