Alert archive / Indiana / Spencer County
Weather alerts in Spencer County, Indiana, 2011
183 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Spencer County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 183
- Warnings
- 59
- Watches
- 30
- Advisories
- 52
- Busiest month
- April65 alerts
- Busiest day
- April 23, 201112 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 8 tornado warnings covering Spencer County in 2011 had a tornado report inside them.
Spencer County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 8 | 2 | 75% | 0 | ||
| Severe thunderstorm warnings | 20 | 12 | 40% | 8 | 75% | 31 min |
| Flash flood warnings | 10 | 1 | 90% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Paducah, KY: tornado warnings | 180 | 45 | 75% | 85 | 68% | 16 min |
| NWS Paducah, KY: severe thunderstorm warnings | 376 | 135 | 64% | 486 | 58% | 22 min |
| NWS Paducah, KY: flash flood warnings | 88 | 17 | 81% | 38 | 84% | 129 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 7, 3:56 AM CST | Winter Weather Advisory | PAH | 11 hr |
| Jan 10, 3:17 AM CST | Winter Weather Advisory | PAH | 51 hr |
| Jan 18, 3:49 AM CST | Dense Fog Advisory | PAH | 4 hr |
| Jan 18, 3:59 PM CST | Winter Weather Advisory | PAH | 50 hr |
| Jan 20, 3:41 AM CST | Winter Storm Warning | PAH | 14 hr |
| Jan 25, 2:55 AM CST | Dense Fog Advisory | PAH | 6 hr |
| Jan 25, 11:55 AM CST | Winter Weather Advisory | PAH | 19 hr |
| Feb 1, 2:46 AM CST | Wind Advisory | PAH | 33 hr |
| Feb 4, 3:02 AM CST | Winter Weather Advisory | PAH | 33 hr |
| Feb 6, 11:44 AM CST | Winter Weather Advisory | PAH | 29 hr |
| Feb 24, 8:53 PM CST | Flash Flood Warning | PAH | 4 hr |
| Feb 24, 10:35 PM CST | River Flood Warning | PAH | 28 days |
| Feb 27, 1:21 AM CST | Flash Flood Watch | PAH | 32 hr |
| Feb 27, 11:11 AM CST | River Flood Warning | PAH | 22 days |
| Feb 27, 11:46 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 28, 1:05 AM CST | Mesoscale Discussion | SPC | 25 min |
| Mar 3, 3:38 PM CST | Flash Flood Watch | PAH | 43 hr |
| Mar 14, 11:04 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Mar 23, 12:13 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 2, 5:00 AM CDT | Wind Advisory | PAH | 57 hr |
| Apr 3, 8:15 AM CDT | Red Flag Warning | PAH | 11 hr |
| Apr 4, 6:53 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 7:22 AM CDT | Tornado Watch | SPC | 7 hr |
| Apr 4, 11:06 AM CDT | Areal Flood Advisory | PAH | 4 hr |
| Apr 6, 5:30 AM CDT | Red Flag Warning | PAH | 14 hr |
| Apr 8, 11:17 AM CDT | River Flood Warning | PAH | 38 days |
| Apr 8, 12:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 9, 6:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 7:25 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 9:15 AM CDT | Severe Thunderstorm Warning | PAH | 10 min |
| Apr 10, 3:19 AM CDT | Wind Advisory | PAH | 17 hr |
| Apr 11, 9:23 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 12, 2:36 AM CDT | Areal Flood Warning | PAH | 6 min |
| Apr 12, 2:44 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 12, 10:17 AM CDT | River Flood Warning | PAH | 27 days |
| Apr 15, 12:47 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 15, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 8:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 19, 6:46 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 19, 9:17 PM CDT | Severe Thunderstorm Warning | PAH | 58 min |
| Apr 19, 9:46 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 19, 10:03 PM CDT | Tornado Warning | PAH | 27 min |
| Apr 19, 10:07 PM CDT | Severe Thunderstorm Warning | PAH | 53 min |
| Apr 19, 10:23 PM CDT | Tornado Warning | PAH | 15 min |
| Apr 21, 3:46 PM CDT | Flash Flood Watch | PAH | 6 days |
| Apr 22, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 22, 5:27 PM CDT | Mesoscale Discussion | SPC | 33 min |
| Apr 22, 5:49 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 22, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 22, 10:31 PM CDT | Areal Flood Advisory | PAH | 6 hr |
| Apr 22, 10:32 PM CDT | Severe Thunderstorm Warning | PAH | 43 min |
| Apr 22, 11:00 PM CDT | Tornado Warning | PAH | 30 min |
| Apr 22, 11:24 PM CDT | Tornado Warning | PAH | 25 min |
| Apr 23, 1:04 AM CDT | Tornado Watch | SPC | 4 hr |
| Apr 23, 3:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 23, 4:27 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 23, 10:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 23, 11:18 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Apr 23, 12:35 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 23, 6:30 PM CDT | Areal Flood Warning | PAH | 8 hr |
| Apr 24, 2:46 AM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 24, 12:02 PM CDT | Areal Flood Warning | PAH | 10 hr |
| Apr 24, 9:55 PM CDT | Areal Flood Warning | PAH | 59 hr |
| Apr 25, 6:16 AM CDT | Flash Flood Warning | PAH | 4 hr |
| Apr 25, 4:58 PM CDT | Flash Flood Warning | PAH | 118 min |
| Apr 26, 12:32 AM CDT | Flash Flood Warning | PAH | 3 hr |
| Apr 26, 1:49 AM CDT | Severe Thunderstorm Warning | PAH | 26 min |
| Apr 26, 4:38 PM CDT | Mesoscale Discussion | SPC | 37 min |
| Apr 26, 4:50 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 26, 5:05 PM CDT | Tornado Warning | PAH | 24 min |
| Apr 26, 5:40 PM CDT | Severe Thunderstorm Warning | PAH | 24 min |
| Apr 26, 5:53 PM CDT | Tornado Warning | PAH | 18 min |
| Apr 26, 8:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Apr 26, 9:54 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 27, 9:10 AM CDT | Areal Flood Warning | PAH | 48 hr |
| Apr 27, 3:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 27, 3:29 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 5:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 27, 5:36 PM CDT | Flash Flood Warning | PAH | 6 hr |
| Apr 27, 8:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 28, 12:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 29, 9:29 AM CDT | Areal Flood Warning | PAH | 4 days |
| Apr 29, 8:35 PM CDT | Flash Flood Watch | PAH | 50 hr |
| Apr 30, 4:18 AM CDT | Lake Wind Advisory | PAH | 14 hr |
| May 2, 2:33 AM CDT | Flash Flood Warning | PAH | 6 hr |
| May 3, 8:58 AM CDT | Areal Flood Warning | PAH | 5 days |
| May 4, 3:30 PM CDT | Frost Advisory | PAH | 16 hr |
| May 8, 10:29 AM CDT | Areal Flood Warning | PAH | 24 hr |
| May 12, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 12, 3:37 PM CDT | Severe Thunderstorm Warning | PAH | 23 min |
| May 22, 4:30 AM CDT | Lake Wind Advisory | PAH | 15 hr |
| May 23, 10:55 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 2:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 23, 3:51 PM CDT | Severe Thunderstorm Warning | PAH | 24 min |
| May 23, 3:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 23, 4:50 PM CDT | Severe Thunderstorm Warning | PAH | 40 min |
| May 23, 4:58 PM CDT | Severe Thunderstorm Warning | PAH | 47 min |
| May 25, 4:11 AM CDT | Lake Wind Advisory | PAH | 16 hr |
| May 25, 10:18 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 25, 11:02 AM CDT | Mesoscale Discussion | SPC | 28 min |
| May 25, 11:09 AM CDT | Tornado Watch | SPC | 10 hr |
| May 25, 6:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 7:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 7:50 PM CDT | Severe Thunderstorm Warning | PAH | 55 min |
| May 25, 8:33 PM CDT | Tornado Watch | SPC | 7 hr |
| May 25, 8:40 PM CDT | Severe Thunderstorm Warning | PAH | 65 min |
| May 25, 8:52 PM CDT | Tornado Warning | PAH | 23 min |
| May 25, 8:53 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| May 28, 3:01 PM CDT | Lake Wind Advisory | PAH | 28 hr |
| Jun 5, 7:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 10:51 AM CDT | Severe Thunderstorm Warning | PAH | 54 min |
| Jun 15, 4:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 15, 2:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 6:10 PM CDT | Severe Thunderstorm Warning | PAH | 35 min |
| Jun 15, 7:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 17, 1:34 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Jun 17, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 17, 3:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 18, 3:11 AM CDT | Severe Thunderstorm Warning | PAH | 34 min |
| Jun 19, 2:10 AM CDT | Flash Flood Watch | PAH | 7 hr |
| Jun 19, 2:14 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 19, 2:55 AM CDT | Tornado Watch | SPC | 6 hr |
| Jun 19, 4:39 AM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 19, 5:09 AM CDT | Areal Flood Advisory | PAH | 111 min |
| Jun 19, 5:20 AM CDT | Severe Thunderstorm Warning | PAH | 55 min |
| Jun 19, 5:26 AM CDT | Severe Thunderstorm Warning | PAH | 49 min |
| Jun 19, 5:46 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 19, 5:55 AM CDT | Tornado Warning | PAH | 20 min |
| Jun 22, 3:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 25, 3:03 PM CDT | Areal Flood Advisory | PAH | 2 hr |
| Jun 25, 10:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 26, 1:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 26, 1:52 AM CDT | Areal Flood Advisory | PAH | 113 min |
| Jun 26, 1:58 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 27, 3:14 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 27, 11:30 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 27, 12:01 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 27, 12:54 PM CDT | Severe Thunderstorm Warning | PAH | 36 min |
| Jul 3, 6:00 PM CDT | Areal Flood Advisory | PAH | 2 hr |
| Jul 7, 9:42 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| Jul 8, 1:00 AM CDT | Areal Flood Advisory | PAH | 3 hr |
| Jul 10, 3:53 AM CDT | Excessive Heat Watch | PAH | 10 hr |
| Jul 10, 1:28 PM CDT | Excessive Heat Warning | PAH | 56 hr |
| Jul 10, 1:28 PM CDT | Heat Advisory | PAH | 25 hr |
| Jul 12, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 12, 3:36 PM CDT | Areal Flood Advisory | PAH | 114 min |
| Jul 12, 5:29 PM CDT | Flash Flood Warning | PAH | 2 hr |
| Jul 12, 6:01 PM CDT | Areal Flood Advisory | PAH | 119 min |
| Jul 12, 6:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 12, 7:59 PM CDT | Areal Flood Advisory | PAH | 2 hr |
| Jul 16, 3:23 PM CDT | Excessive Heat Watch | PAH | 67 hr |
| Jul 18, 3:06 PM CDT | Heat Advisory | PAH | 19 hr |
| Jul 19, 9:58 AM CDT | Excessive Heat Warning | PAH | 5 days |
| Jul 25, 6:07 AM CDT | Dense Fog Advisory | PAH | 2 hr |
| Jul 27, 3:26 AM CDT | Heat Advisory | PAH | 40 hr |
| Jul 29, 3:27 AM CDT | Heat Advisory | PAH | 16 hr |
| Aug 1, 4:11 AM CDT | Heat Advisory | PAH | 63 hr |
| Aug 5, 2:20 PM CDT | Heat Advisory | PAH | 53 hr |
| Aug 18, 2:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 5:46 PM CDT | Severe Thunderstorm Warning | PAH | 29 min |
| Aug 24, 12:11 PM CDT | Lake Wind Advisory | PAH | 6 hr |
| Aug 24, 8:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 4, 4:14 PM CDT | Lake Wind Advisory | PAH | 27 hr |
| Sep 5, 4:09 PM CDT | Lake Wind Advisory | PAH | 26 hr |
| Sep 7, 10:55 AM CDT | Lake Wind Advisory | PAH | 4 hr |
| Sep 25, 7:20 PM CDT | Areal Flood Advisory | PAH | 3 hr |
| Sep 25, 7:49 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 29, 12:08 PM CDT | Lake Wind Advisory | PAH | 9 hr |
| Sep 30, 3:53 AM CDT | Lake Wind Advisory | PAH | 13 hr |
| Oct 1, 8:38 PM CDT | Frost Advisory | PAH | 11 hr |
| Oct 14, 3:19 PM CDT | Fire Weather Watch | PAH | 36 hr |
| Oct 21, 4:25 AM CDT | Frost Advisory | PAH | 28 hr |
| Nov 9, 2:32 PM CST | Freeze Warning | PAH | 41 hr |
| Nov 12, 4:16 PM CST | Wind Advisory | PAH | 24 hr |
| Nov 14, 3:04 PM CST | Tornado Watch | SPC | 5 hr |
| Nov 14, 5:32 PM CST | Mesoscale Discussion | SPC | 88 min |
| Nov 14, 6:19 PM CST | Severe Thunderstorm Warning | PAH | 56 min |
| Nov 21, 4:12 AM CST | Flash Flood Watch | PAH | 28 hr |
| Nov 26, 12:39 PM CST | River Flood Warning | PAH | 19 days |
| Nov 29, 11:58 AM CST | River Flood Warning | PAH | 4 days |
| Dec 3, 1:55 PM CST | Flood Watch | PAH | 52 hr |
| Dec 5, 11:04 AM CST | Areal Flood Advisory | PAH | 7 hr |
| Dec 5, 5:37 PM CST | Areal Flood Warning | PAH | 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 | 20 |
| Tornado Warning | 8 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 13 |
| Mesoscale Discussion | 42 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 10 |
| River Flood Warning | 6 |
| Flash Flood Watch | 6 |
| Flood Watch | 1 |
| Areal Flood Advisory | 20 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 6 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 2 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Lake Wind Advisory | 10 |
| Wind Advisory | 4 |
| 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 archive20102012
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.