Alert archive / Kentucky / Shelby County
Weather alerts in Shelby County, Kentucky, 2012
178 weather alerts in 2012, 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 2012. Tap one for its archive.
- Alerts
- 178
- Warnings
- 47
- Watches
- 26
- Advisories
- 28
- Busiest month
- July41 alerts
- Busiest day
- February 29, 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.
2 of 5 tornado warnings covering Shelby County in 2012 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 1 minutes after it went out.
Shelby County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 2 | 60% | 1 | 100% | 1 min |
| Severe thunderstorm warnings | 32 | 17 | 47% | 15 | 53% | 18 min |
| Flash flood warnings | 2 | 0 | 100% | 1 | 0% |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Louisville, KY: tornado warnings | 99 | 21 | 79% | 65 | 80% | 16 min |
| NWS Louisville, KY: severe thunderstorm warnings | 545 | 256 | 53% | 745 | 62% | 16 min |
| NWS Louisville, KY: flash flood warnings | 33 | 11 | 67% | 37 | 78% | 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 1, 4:10 AM EST | Wind Advisory | LMK | 303 days |
| Jan 2, 7:49 PM EST | Winter Weather Advisory | LMK | 13 hr |
| Jan 11, 2:39 PM EST | Winter Weather Advisory | LMK | 42 hr |
| Jan 14, 4:24 AM EST | Winter Weather Advisory | LMK | 22 hr |
| Jan 17, 11:20 AM EST | Tornado Warning | LMK | 25 min |
| Jan 17, 11:33 AM EST | Mesoscale Discussion | SPC | 57 min |
| Jan 17, 11:42 AM EST | Severe Thunderstorm Warning | LMK | 18 min |
| Jan 17, 11:52 AM EST | Severe Thunderstorm Warning | LMK | 23 min |
| Jan 20, 10:36 AM EST | Winter Weather Advisory | LMK | 17 hr |
| Jan 23, 12:34 AM EST | Severe Thunderstorm Watch | SPC | 3 hr |
| Jan 23, 1:52 AM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 23, 2:44 AM EST | Special Weather Statement | LMK | 31 min |
| Jan 23, 2:51 AM EST | Severe Thunderstorm Warning | LMK | 24 min |
| Jan 23, 5:42 AM EST | Wind Advisory | LMK | 11 hr |
| Jan 25, 3:28 PM EST | Flood Watch | LMK | 34 hr |
| Feb 6, 4:46 AM EST | Dense Fog Advisory | LMK | 5 hr |
| Feb 9, 3:43 PM EST | Winter Weather Advisory | LMK | 41 hr |
| Feb 21, 4:04 AM EST | Wind Advisory | LMK | 11 hr |
| Feb 23, 3:21 PM EST | Mesoscale Discussion | SPC | 84 min |
| Feb 23, 7:05 PM EST | Special Weather Statement | LMK | 25 min |
| Feb 23, 7:28 PM EST | Mesoscale Discussion | SPC | 92 min |
| Feb 23, 8:09 PM EST | Severe Thunderstorm Warning | LMK | 36 min |
| Feb 23, 10:46 PM EST | Mesoscale Discussion | SPC | 89 min |
| Feb 24, 3:41 AM EST | Wind Advisory | LMK | 15 hr |
| Feb 29, 2:03 AM EST | Special Weather Statement | LMK | 57 min |
| Feb 29, 3:40 AM EST | Mesoscale Discussion | SPC | 65 min |
| Feb 29, 5:39 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 29, 8:30 AM EST | Severe Thunderstorm Warning | LMK | 30 min |
| Feb 29, 8:38 AM EST | Mesoscale Discussion | SPC | 67 min |
| Feb 29, 8:39 AM EST | Severe Thunderstorm Warning | LMK | 36 min |
| Feb 29, 8:53 AM EST | Severe Thunderstorm Warning | LMK | 37 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, 3:35 PM EST | Mesoscale Discussion | SPC | 85 min |
| Mar 2, 4:30 PM EST | Severe Thunderstorm Warning | LMK | 30 min |
| Mar 2, 4:34 PM EST | Tornado Warning | LMK | 26 min |
| Mar 2, 4:53 PM EST | Tornado Warning | LMK | 22 min |
| Mar 4, 3:34 AM EST | Winter Weather Advisory | LMK | 30 hr |
| Mar 7, 1:09 PM EST | Wind Advisory | LMK | 5 hr |
| Mar 15, 2:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 15, 3:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 15, 4:37 PM EDT | Severe Thunderstorm Warning | LMK | 38 min |
| Mar 15, 4:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Mar 15, 6:28 PM EDT | Special Weather Statement | LMK | 32 min |
| Mar 15, 7:01 PM EDT | Special Weather Statement | LMK | 29 min |
| Mar 18, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 23, 2:27 PM EDT | Tornado Warning | LMK | 33 min |
| 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, 10:40 PM EDT | Special Weather Statement | LMK | 50 min |
| Mar 23, 11:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Mar 28, 2:06 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 28, 3:02 PM EDT | Severe Thunderstorm Warning | LMK | 28 min |
| Mar 28, 3:27 PM EDT | Severe Thunderstorm Warning | LMK | 33 min |
| Mar 28, 4:14 PM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Apr 1, 11:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Apr 4, 4:17 PM EDT | Special Weather Statement | LMK | 13 min |
| Apr 6, 3:31 AM EDT | Frost Advisory | LMK | 29 hr |
| Apr 9, 3:43 PM EDT | Freeze Watch | LMK | 23 hr |
| Apr 10, 9:32 AM EDT | Red Flag Warning | LMK | 9 hr |
| Apr 10, 3:02 PM EDT | Freeze Watch | LMK | 13 hr |
| Apr 10, 3:02 PM EDT | Freeze Warning | LMK | 16 hr |
| Apr 11, 4:07 AM EDT | Freeze Warning | LMK | 29 hr |
| Apr 16, 8:05 AM EDT | Special Weather Statement | LMK | 40 min |
| Apr 25, 11:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 1:40 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 26, 3:23 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 28, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 28, 6:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 8:10 PM EDT | Severe Thunderstorm Warning | LMK | 35 min |
| Apr 28, 8:33 PM EDT | Severe Thunderstorm Warning | LMK | 27 min |
| Apr 29, 12:14 AM EDT | Special Weather Statement | LMK | 46 min |
| Apr 29, 12:34 AM EDT | Areal Flood Advisory | LMK | 90 min |
| 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 |
| Apr 30, 6:50 PM EDT | Special Weather Statement | LMK | 25 min |
| Apr 30, 7:16 PM EDT | Special Weather Statement | LMK | 29 min |
| Apr 30, 7:45 PM EDT | Special Weather Statement | LMK | 30 min |
| Apr 30, 8:14 PM EDT | Special Weather Statement | LMK | 31 min |
| May 1, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 12:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 4, 2:29 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 4, 4:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 4, 11:50 PM EDT | Special Weather Statement | LMK | 40 min |
| May 5, 12:23 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| May 7, 4:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 30, 5:05 AM EDT | Dense Fog Advisory | LMK | 5 hr |
| May 31, 2:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 31, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 31, 6:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 7:15 PM EDT | Special Weather Statement | LMK | 45 min |
| Jun 16, 7:56 AM EDT | Special Weather Statement | LMK | 29 min |
| Jun 16, 9:55 AM EDT | Special Weather Statement | LMK | 45 min |
| Jun 16, 10:25 AM EDT | Areal Flood Advisory | LMK | 90 min |
| Jun 16, 10:56 AM EDT | Flash Flood Warning | LMK | 114 min |
| Jun 26, 4:03 PM EDT | Fire Weather Watch | LMK | 21 hr |
| Jun 27, 1:24 PM EDT | Red Flag Warning | LMK | 32 hr |
| Jun 27, 1:48 PM EDT | Heat Advisory | LMK | 4 days |
| Jun 29, 2:51 PM EDT | Excessive Heat Warning | LMK | 55 hr |
| Jun 30, 6:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 5:59 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 1, 8:48 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 1, 9:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 1, 9:13 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 1, 9:26 PM EDT | Severe Thunderstorm Warning | LMK | 24 min |
| Jul 3, 3:33 PM EDT | Excessive Heat Warning | LMK | 4 days |
| Jul 7, 3:43 PM EDT | Heat Advisory | LMK | 28 hr |
| Jul 8, 1:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 8, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 8, 4:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 14, 3:24 PM EDT | Special Weather Statement | LMK | 41 min |
| Jul 19, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 6:15 PM EDT | Severe Thunderstorm Warning | LMK | 45 min |
| Jul 19, 6:31 PM EDT | Severe Thunderstorm Warning | LMK | 39 min |
| Jul 19, 7:00 PM EDT | Severe Thunderstorm Warning | LMK | 45 min |
| Jul 19, 7:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 23, 1:26 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 12:33 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 3:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 24, 3:46 PM EDT | Heat Advisory | LMK | 29 hr |
| Jul 24, 8:20 PM EDT | Severe Thunderstorm Warning | LMK | 30 min |
| Jul 24, 8:42 PM EDT | Severe Thunderstorm Warning | LMK | 28 min |
| Jul 24, 8:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 24, 9:09 PM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Jul 25, 3:42 PM EDT | Heat Advisory | LMK | 27 hr |
| Jul 25, 4:48 PM EDT | Mesoscale Discussion | SPC | 117 min |
| 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, 4:32 PM EDT | Severe Thunderstorm Warning | LMK | 33 min |
| Jul 26, 4:55 PM EDT | Mesoscale Discussion | SPC | 35 min |
| Jul 26, 8:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 26, 10:52 PM EDT | Special Weather Statement | LMK | 28 min |
| Jul 26, 11:00 PM EDT | Severe Thunderstorm Warning | LMK | 30 min |
| Jul 27, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 27, 5:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 27, 6:53 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 27, 7:53 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 27, 8:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 8:41 PM EDT | Severe Thunderstorm Warning | LMK | 44 min |
| Jul 27, 9:14 PM EDT | Severe Thunderstorm Warning | LMK | 46 min |
| Jul 27, 9:31 PM EDT | Flash Flood Warning | LMK | 3 hr |
| Aug 9, 5:25 PM EDT | Severe Thunderstorm Warning | LMK | 40 min |
| Aug 16, 4:27 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 16, 9:38 PM EDT | Special Weather Statement | LMK | 42 min |
| Sep 5, 2:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Sep 5, 2:43 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 5, 4:17 PM EDT | Special Weather Statement | LMK | 28 min |
| Sep 5, 4:36 PM EDT | Special Weather Statement | LMK | 29 min |
| Sep 5, 4:47 PM EDT | Tornado Warning | LMK | 18 min |
| Sep 7, 8:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 7, 9:10 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 7, 11:24 PM EDT | Severe Thunderstorm Warning | LMK | 46 min |
| Sep 8, 12:09 AM EDT | Special Weather Statement | LMK | 46 min |
| Sep 8, 12:36 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 8, 12:48 AM EDT | Special Weather Statement | LMK | 42 min |
| Sep 8, 12:57 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 2:55 PM EDT | Frost Advisory | LMK | 17 hr |
| Sep 25, 9:13 AM EDT | Special Weather Statement | LMK | 62 min |
| Oct 7, 3:52 AM EDT | Frost Advisory | LMK | 28 hr |
| Oct 8, 2:41 PM EDT | Frost Advisory | LMK | 18 hr |
| Oct 10, 4:11 AM EDT | Freeze Warning | LMK | 29 hr |
| Oct 14, 8:38 AM EDT | Wind Advisory | LMK | 13 hr |
| Oct 14, 8:48 PM EDT | Severe Thunderstorm Warning | LMK | 18 min |
| Oct 18, 4:19 PM EDT | Special Weather Statement | LMK | 26 min |
| Oct 31, 3:56 AM EDT | Freeze Warning | LMK | 29 hr |
| Nov 3, 4:45 PM EDT | Special Weather Statement | LMK | 30 min |
| Nov 3, 5:23 PM EDT | Special Weather Statement | LMK | 42 min |
| Dec 9, 10:14 PM EST | Special Weather Statement | LMK | 41 min |
| Dec 17, 12:03 PM EST | Mesoscale Discussion | SPC | 117 min |
| Dec 17, 12:26 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Dec 17, 1:58 PM EST | Mesoscale Discussion | SPC | 92 min |
| Dec 17, 3:05 PM EST | Special Weather Statement | LMK | 90 min |
| Dec 17, 4:42 PM EST | Mesoscale Discussion | SPC | 93 min |
| Dec 19, 4:21 PM EST | Wind Advisory | LMK | 42 hr |
| Dec 25, 3:05 PM EST | Winter Weather Advisory | LMK | 30 hr |
| Dec 28, 3:54 AM EST | Winter Weather Advisory | LMK | 35 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 | 32 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 19 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 47 |
| Special Weather Statement | 30 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.