Alert archive / Kentucky / Shelby County
Weather alerts in Shelby County, Kentucky, 2011
195 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 195
- Warnings
- 56
- Watches
- 31
- Advisories
- 33
- Busiest month
- April74 alerts
- Busiest day
- April 23, 201115 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 10 tornado warnings covering Shelby County in 2011 had a tornado report inside them.
Shelby County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 10 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 32 | 18 | 44% | 21 | 86% | 16 min |
| Flash flood warnings | 3 | 3 | 0% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Louisville, KY: tornado warnings | 117 | 25 | 79% | 64 | 69% | 17 min |
| NWS Louisville, KY: severe thunderstorm warnings | 473 | 205 | 57% | 631 | 65% | 16 min |
| NWS Louisville, KY: flash flood warnings | 66 | 30 | 55% | 72 | 71% | 91 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 8, 12:03 AM EST | Winter Weather Advisory | LMK | 10 hr |
| Jan 10, 5:08 AM EST | Winter Weather Advisory | LMK | 52 hr |
| Jan 18, 4:02 PM EST | Winter Storm Watch | LMK | 22 hr |
| Jan 19, 2:04 PM EST | Winter Storm Warning | LMK | 32 hr |
| Jan 19, 2:04 PM EST | Winter Weather Advisory | LMK | 42 hr |
| Jan 25, 3:42 AM EST | Dense Fog Advisory | LMK | 8 hr |
| Jan 25, 2:54 PM EST | Winter Weather Advisory | LMK | 24 hr |
| Jan 31, 8:44 AM EST | Freezing Rain Advisory | LMK | 3 hr |
| Feb 1, 4:53 AM EST | Wind Advisory | LMK | 32 hr |
| Feb 4, 3:27 AM EST | Winter Weather Advisory | LMK | 35 hr |
| Feb 6, 2:45 PM EST | Winter Weather Advisory | LMK | 31 hr |
| Feb 7, 3:17 PM EST | Winter Weather Advisory | LMK | 7 hr |
| Feb 21, 5:56 PM EST | Special Weather Statement | LMK | 34 min |
| Feb 23, 4:26 AM EST | Flash Flood Watch | LMK | 48 hr |
| Feb 24, 10:36 PM EST | Areal Flood Advisory | LMK | 3 hr |
| Feb 27, 3:43 AM EST | Flood Watch | LMK | 36 hr |
| Feb 28, 2:33 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 28, 4:25 AM EST | Severe Thunderstorm Warning | LMK | 35 min |
| Feb 28, 4:25 AM EST | Mesoscale Discussion | SPC | 65 min |
| Feb 28, 4:56 AM EST | Severe Thunderstorm Warning | LMK | 49 min |
| Mar 4, 3:28 AM EST | Flood Watch | LMK | 40 hr |
| Mar 23, 12:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Mar 23, 1:13 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 23, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Mar 23, 4:29 PM EDT | Special Weather Statement | LMK | 31 min |
| Apr 1, 7:54 PM EDT | Special Weather Statement | LMK | 111 min |
| Apr 2, 3:37 PM EDT | Wind Advisory | LMK | 28 hr |
| Apr 3, 9:25 AM EDT | Red Flag Warning | LMK | 10 hr |
| Apr 3, 9:04 PM EDT | Wind Advisory | LMK | 18 hr |
| Apr 4, 12:34 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 4, 2:06 PM EDT | Special Weather Statement | LMK | 24 min |
| Apr 4, 2:18 PM EDT | Severe Thunderstorm Warning | LMK | 27 min |
| Apr 4, 2:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 6, 1:45 PM EDT | Red Flag Warning | LMK | 5 hr |
| Apr 8, 1:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Apr 8, 2:53 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 9, 7:41 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 8:25 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 11:16 AM EDT | Severe Thunderstorm Warning | LMK | 29 min |
| Apr 9, 11:21 AM EDT | Severe Thunderstorm Warning | LMK | 24 min |
| Apr 9, 11:32 AM EDT | Severe Thunderstorm Warning | LMK | 28 min |
| Apr 12, 7:52 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| Apr 16, 1:38 AM EDT | Special Weather Statement | LMK | 22 min |
| Apr 19, 9:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 19, 10:13 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 20, 12:44 AM EDT | Severe Thunderstorm Warning | LMK | 46 min |
| Apr 20, 12:49 AM EDT | Tornado Warning | LMK | 26 min |
| Apr 20, 12:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 20, 1:19 AM EDT | Severe Thunderstorm Warning | LMK | 41 min |
| Apr 21, 3:27 PM EDT | Flash Flood Watch | LMK | 6 days |
| Apr 22, 2:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 22, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 22, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 22, 5:54 PM EDT | Severe Thunderstorm Warning | LMK | 36 min |
| Apr 22, 6:01 PM EDT | Tornado Warning | LMK | 29 min |
| Apr 22, 6:04 PM EDT | Areal Flood Advisory | LMK | 93 min |
| Apr 22, 6:25 PM EDT | Tornado Warning | LMK | 35 min |
| Apr 22, 6:27 PM EDT | Mesoscale Discussion | SPC | 33 min |
| Apr 22, 6:49 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 22, 7:03 PM EDT | Special Weather Statement | LMK | 27 min |
| Apr 22, 10:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 23, 12:13 AM EDT | Special Weather Statement | LMK | 62 min |
| Apr 23, 1:14 AM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Apr 23, 2:04 AM EDT | Tornado Watch | SPC | 4 hr |
| Apr 23, 4:41 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 23, 5:22 AM EDT | Mesoscale Discussion | SPC | 23 min |
| Apr 23, 5:29 AM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Apr 23, 6:51 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| Apr 23, 11:28 AM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Apr 23, 11:51 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 23, 2:13 PM EDT | Special Weather Statement | LMK | 62 min |
| Apr 23, 2:49 PM EDT | Flash Flood Warning | LMK | 15 hr |
| Apr 23, 6:44 PM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Apr 23, 7:08 PM EDT | Special Weather Statement | LMK | 37 min |
| Apr 23, 7:35 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 24, 6:16 AM EDT | Areal Flood Warning | LMK | 12 hr |
| Apr 24, 5:48 PM EDT | Areal Flood Warning | LMK | 12 hr |
| Apr 25, 5:42 AM EDT | Areal Flood Warning | LMK | 5 hr |
| Apr 25, 10:28 AM EDT | Areal Flood Warning | LMK | 36 hr |
| Apr 26, 4:41 AM EDT | Special Weather Statement | LMK | 34 min |
| Apr 26, 4:49 AM EDT | Severe Thunderstorm Warning | LMK | 26 min |
| Apr 26, 5:50 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 26, 10:56 PM EDT | Severe Thunderstorm Warning | LMK | 34 min |
| Apr 26, 10:58 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 26, 11:20 PM EDT | Severe Thunderstorm Warning | LMK | 40 min |
| Apr 26, 11:39 PM EDT | Areal Flood Warning | LMK | 10 hr |
| Apr 26, 11:59 PM EDT | Special Weather Statement | LMK | 31 min |
| Apr 27, 5:45 AM EDT | Special Weather Statement | LMK | 45 min |
| Apr 27, 6:06 AM EDT | Tornado Warning | LMK | 24 min |
| Apr 27, 6:07 AM EDT | Tornado Watch | SPC | 5 hr |
| Apr 27, 7:19 AM EDT | Special Weather Statement | LMK | 26 min |
| Apr 27, 7:48 AM EDT | Severe Thunderstorm Warning | LMK | 27 min |
| Apr 27, 7:56 AM EDT | Tornado Warning | LMK | 19 min |
| Apr 27, 5:38 PM EDT | Mesoscale Discussion | SPC | 37 min |
| Apr 27, 5:44 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 27, 9:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 28, 1:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 28, 7:23 PM EDT | Special Weather Statement | LMK | 52 min |
| Apr 30, 3:36 AM EDT | Flood Watch | LMK | 3 days |
| May 3, 6:01 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| May 3, 8:57 AM EDT | Areal Flood Warning | LMK | 9 hr |
| May 3, 4:35 PM EDT | Areal Flood Warning | LMK | 24 hr |
| May 4, 3:37 PM EDT | Frost Advisory | LMK | 17 hr |
| May 8, 7:05 AM EDT | Dense Fog Advisory | LMK | 115 min |
| May 10, 11:21 AM EDT | Mesoscale Discussion | SPC | 114 min |
| May 10, 1:10 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 12, 3:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| May 22, 2:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 4:20 AM EDT | Mesoscale Discussion | SPC | 85 min |
| May 23, 4:42 AM EDT | Severe Thunderstorm Warning | LMK | 18 min |
| May 23, 4:57 AM EDT | Severe Thunderstorm Warning | LMK | 33 min |
| May 23, 3:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 23, 4:28 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 23, 6:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 23, 6:33 PM EDT | Severe Thunderstorm Warning | LMK | 27 min |
| May 23, 7:02 PM EDT | Severe Thunderstorm Warning | LMK | 28 min |
| May 25, 12:09 PM EDT | Tornado Watch | SPC | 10 hr |
| May 25, 9:33 PM EDT | Tornado Watch | SPC | 7 hr |
| May 25, 11:15 PM EDT | Severe Thunderstorm Warning | LMK | 45 min |
| May 25, 11:49 PM EDT | Severe Thunderstorm Warning | LMK | 41 min |
| May 26, 1:26 PM EDT | Special Weather Statement | LMK | 34 min |
| Jun 9, 6:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 10, 9:01 AM EDT | Special Weather Statement | LMK | 29 min |
| Jun 10, 8:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 10, 10:51 PM EDT | Special Weather Statement | LMK | 24 min |
| Jun 11, 1:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 5:12 AM EDT | Special Weather Statement | LMK | 33 min |
| Jun 15, 10:24 AM EDT | Special Weather Statement | LMK | 36 min |
| Jun 17, 2:34 PM EDT | Mesoscale Discussion | SPC | 26 min |
| Jun 17, 6:46 PM EDT | Special Weather Statement | LMK | 29 min |
| Jun 17, 7:11 PM EDT | Special Weather Statement | LMK | 34 min |
| Jun 18, 7:32 AM EDT | Special Weather Statement | LMK | 28 min |
| Jun 19, 3:55 AM EDT | Tornado Watch | SPC | 6 hr |
| Jun 19, 5:39 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 19, 6:46 AM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 19, 8:16 AM EDT | Severe Thunderstorm Warning | LMK | 29 min |
| Jun 19, 8:44 AM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Jun 20, 2:55 AM EDT | Special Weather Statement | LMK | 35 min |
| Jun 20, 9:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 21, 4:01 PM EDT | Special Weather Statement | LMK | 29 min |
| Jun 21, 4:28 PM EDT | Special Weather Statement | LMK | 32 min |
| Jun 22, 4:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 22, 6:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 22, 8:43 PM EDT | Tornado Warning | LMK | 32 min |
| Jun 22, 9:11 PM EDT | Tornado Warning | LMK | 34 min |
| Jun 22, 9:13 PM EDT | Tornado Warning | LMK | 32 min |
| Jun 22, 9:40 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jun 22, 9:42 PM EDT | Tornado Warning | LMK | 33 min |
| Jun 22, 9:50 PM EDT | Tornado Warning | LMK | 25 min |
| Jun 22, 10:11 PM EDT | Special Weather Statement | LMK | 34 min |
| Jun 22, 10:18 PM EDT | Flash Flood Warning | LMK | 3 hr |
| Jun 23, 3:34 AM EDT | Special Weather Statement | LMK | 26 min |
| Jun 23, 12:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 26, 2:58 AM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 26, 3:38 AM EDT | Special Weather Statement | LMK | 37 min |
| Jun 26, 5:14 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 27, 4:14 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 10, 3:50 AM EDT | Heat Advisory | LMK | 40 hr |
| Jul 11, 2:57 PM EDT | Heat Advisory | LMK | 29 hr |
| Jul 11, 3:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 12, 3:13 AM EDT | Excessive Heat Warning | LMK | 16 hr |
| Jul 12, 4:02 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 12, 5:16 PM EDT | Flash Flood Warning | LMK | 93 min |
| Jul 12, 5:18 PM EDT | Severe Thunderstorm Warning | LMK | 16 min |
| Jul 12, 6:02 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 12, 6:52 PM EDT | Areal Flood Advisory | LMK | 53 min |
| Jul 19, 3:54 PM EDT | Excessive Heat Warning | LMK | 5 days |
| Jul 19, 10:06 PM EDT | Special Weather Statement | LMK | 24 min |
| Jul 20, 6:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 27, 3:11 PM EDT | Heat Advisory | LMK | 29 hr |
| Jul 29, 3:31 AM EDT | Heat Advisory | LMK | 15 hr |
| Aug 3, 10:01 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 5:53 PM EDT | Severe Thunderstorm Warning | LMK | 37 min |
| Aug 13, 6:30 PM EDT | Severe Thunderstorm Warning | LMK | 30 min |
| Aug 13, 6:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 18, 8:42 PM EDT | Severe Thunderstorm Warning | LMK | 33 min |
| Aug 20, 6:59 AM EDT | Dense Fog Advisory | LMK | 2 hr |
| Sep 3, 4:15 AM EDT | Heat Advisory | LMK | 15 hr |
| Sep 11, 7:31 PM EDT | Special Weather Statement | LMK | 44 min |
| Sep 11, 7:38 PM EDT | Severe Thunderstorm Warning | LMK | 37 min |
| Sep 11, 8:14 PM EDT | Special Weather Statement | LMK | 31 min |
| Sep 26, 1:45 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 15, 3:58 PM EDT | Fire Weather Watch | LMK | 11 hr |
| Oct 21, 3:36 AM EDT | Frost Advisory | LMK | 29 hr |
| Nov 12, 2:40 PM EST | Wind Advisory | LMK | 26 hr |
| Nov 14, 6:32 PM EST | Mesoscale Discussion | SPC | 88 min |
| Nov 14, 7:49 PM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Nov 14, 9:06 PM EST | Severe Thunderstorm Warning | LMK | 24 min |
| Nov 14, 9:34 PM EST | Special Weather Statement | LMK | 26 min |
| Nov 14, 10:00 PM EST | Mesoscale Discussion | SPC | 60 min |
| Nov 22, 8:29 AM EST | Special Weather Statement | LMK | 31 min |
| Nov 27, 10:22 AM EST | Flood Watch | LMK | 41 hr |
| Nov 29, 5:22 AM EST | Areal Flood Advisory | LMK | 6 hr |
| Dec 3, 3:41 PM EST | Flood Watch | LMK | 53 hr |
| Dec 30, 2:43 PM EST | Wind Advisory | LMK | 3 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 | 31 |
| Tornado Warning | 10 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 13 |
| Mesoscale Discussion | 42 |
| Special Weather Statement | 33 |
| Flooding | |
| Areal Flood Warning | 7 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 5 |
| Areal Flood Advisory | 10 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 5 |
| Cold | |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 5 |
| 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.