Alert archive / Kentucky / Knox County
Weather alerts in Knox County, Kentucky, 2013
140 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Knox County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 140
- Warnings
- 25
- Watches
- 21
- Advisories
- 76
- Busiest month
- January19 alerts
- Busiest day
- January 30, 20137 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Knox County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 10 | 9% | 3 | 33% | 26 min |
| Flash flood warnings | 3 | 0 | 100% | 4 | 0% |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, KY: tornado warnings | 6 | 1 | 83% | 2 | 50% | 2 min |
| NWS Jackson, KY: severe thunderstorm warnings | 110 | 89 | 19% | 282 | 74% | 23 min |
| NWS Jackson, KY: flash flood warnings | 46 | 25 | 46% | 83 | 64% | 61 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 9, 10:51 PM EST | Dense Fog Advisory | JKL | 11 hr |
| Jan 14, 6:12 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 14, 7:32 PM EST | Winter Weather Advisory | JKL | 3 hr |
| Jan 15, 11:00 AM EST | Flood Watch | JKL | 23 hr |
| Jan 15, 3:40 PM EST | River Flood Warning | JKL | 47 hr |
| Jan 17, 2:44 PM EST | River Flood Advisory | JKL | 22 hr |
| Jan 24, 2:49 PM EST | Winter Weather Advisory | JKL | 25 hr |
| Jan 25, 6:40 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 25, 7:50 AM EST | Ice Storm Warning | JKL | 8 hr |
| Jan 29, 12:40 PM EST | Wind Advisory | JKL | 35 hr |
| Jan 30, 5:51 AM EST | Tornado Watch | SPC | 7 hr |
| Jan 30, 7:04 AM EST | Severe Thunderstorm Warning | JKL | 41 min |
| Jan 30, 7:30 AM EST | Severe Thunderstorm Warning | JKL | 45 min |
| Jan 30, 7:38 AM EST | Mesoscale Discussion | SPC | 97 min |
| Jan 30, 11:58 AM EST | Flood Watch | JKL | 12 hr |
| Jan 30, 2:08 PM EST | Areal Flood Advisory | JKL | 6 hr |
| Jan 30, 3:40 PM EST | Areal Flood Warning | JKL | 24 hr |
| Jan 30, 9:10 PM EST | River Flood Warning | JKL | 35 hr |
| Jan 31, 3:45 AM EST | Winter Weather Advisory | JKL | 27 hr |
| Feb 1, 9:53 AM EST | River Flood Advisory | JKL | 13 hr |
| Feb 1, 3:39 PM EST | Winter Weather Advisory | JKL | 29 hr |
| Feb 3, 4:05 AM EST | Winter Weather Advisory | JKL | 8 hr |
| Feb 18, 11:42 PM EST | Wind Advisory | JKL | 4 hr |
| Mar 5, 4:00 AM EST | Winter Weather Advisory | JKL | 32 hr |
| Mar 5, 3:54 PM EST | Areal Flood Advisory | JKL | 6 hr |
| Mar 6, 12:19 AM EST | River Flood Advisory | JKL | 33 hr |
| Mar 10, 2:33 PM EDT | Red Flag Warning | JKL | 5 hr |
| Mar 19, 3:32 PM EDT | Fire Weather Watch | JKL | 16 hr |
| Mar 20, 7:57 AM EDT | Red Flag Warning | JKL | 10 hr |
| Mar 24, 2:41 PM EDT | Lake Wind Advisory | JKL | 22 hr |
| Mar 25, 10:32 AM EDT | Winter Weather Advisory | JKL | 25 hr |
| Apr 5, 5:07 AM EDT | Dense Fog Advisory | JKL | 5 hr |
| Apr 17, 8:44 AM EDT | Areal Flood Advisory | JKL | 6 hr |
| Apr 18, 3:43 AM EDT | River Flood Advisory | JKL | 12 hr |
| Apr 18, 10:20 AM EDT | Lake Wind Advisory | JKL | 22 hr |
| Apr 19, 3:40 PM EDT | Frost Advisory | JKL | 17 hr |
| Apr 20, 3:43 AM EDT | Frost Advisory | JKL | 29 hr |
| Apr 24, 3:27 PM EDT | Frost Advisory | JKL | 17 hr |
| Apr 25, 3:36 AM EDT | Frost Advisory | JKL | 29 hr |
| May 7, 1:58 AM EDT | Dense Fog Advisory | JKL | 8 hr |
| May 12, 2:10 PM EDT | Frost Advisory | JKL | 19 hr |
| May 21, 3:12 PM EDT | Mesoscale Discussion | SPC | 63 min |
| May 21, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 21, 4:54 PM EDT | Severe Thunderstorm Warning | JKL | 51 min |
| May 21, 5:04 PM EDT | Severe Thunderstorm Warning | JKL | 26 min |
| May 21, 5:24 PM EDT | Severe Thunderstorm Warning | JKL | 51 min |
| May 22, 2:27 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 6:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 3, 12:59 AM EDT | Dense Fog Advisory | JKL | 5 hr |
| Jun 9, 12:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 10, 9:51 AM EDT | Areal Flood Advisory | JKL | 2 hr |
| Jun 10, 2:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 10, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 13, 8:32 AM EDT | Mesoscale Discussion | SPC | 58 min |
| Jun 13, 9:08 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 13, 11:59 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 13, 12:46 PM EDT | Severe Thunderstorm Warning | JKL | 29 min |
| Jun 13, 1:29 PM EDT | Severe Thunderstorm Warning | JKL | 61 min |
| Jun 26, 3:23 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 26, 11:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 27, 12:11 AM EDT | Severe Thunderstorm Warning | JKL | 64 min |
| Jun 27, 12:56 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 1, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 3:23 AM EDT | Flash Flood Watch | JKL | 4 days |
| Jul 4, 8:09 PM EDT | Severe Thunderstorm Warning | JKL | 51 min |
| Jul 4, 8:45 PM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 6, 3:47 PM EDT | Areal Flood Advisory | JKL | 6 hr |
| Jul 6, 6:21 PM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 7, 11:42 AM EDT | Areal Flood Advisory | JKL | 6 hr |
| Jul 7, 11:45 AM EDT | Areal Flood Advisory | JKL | 6 hr |
| Jul 7, 6:42 PM EDT | River Flood Advisory | JKL | 21 hr |
| Jul 10, 11:32 AM EDT | Flash Flood Watch | JKL | 8 hr |
| Jul 10, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 10, 5:37 PM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 13, 12:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 13, 3:22 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 18, 1:49 PM EDT | Areal Flood Advisory | JKL | 2 hr |
| Jul 18, 2:26 PM EDT | Flash Flood Warning | JKL | 3 hr |
| Jul 18, 3:17 PM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 21, 9:44 AM EDT | Flash Flood Watch | JKL | 33 hr |
| Aug 8, 5:59 AM EDT | Flash Flood Watch | JKL | 34 hr |
| Aug 11, 6:27 AM EDT | Areal Flood Advisory | JKL | 3 hr |
| Aug 11, 7:29 AM EDT | Areal Flood Advisory | JKL | 3 hr |
| Aug 11, 9:30 AM EDT | Areal Flood Advisory | JKL | 2 hr |
| Aug 12, 12:25 AM EDT | Dense Fog Advisory | JKL | 10 hr |
| Aug 13, 1:17 AM EDT | Areal Flood Advisory | JKL | 4 hr |
| Aug 21, 1:26 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 31, 7:05 PM EDT | Areal Flood Advisory | JKL | 6 hr |
| Sep 2, 10:34 PM EDT | Areal Flood Advisory | JKL | 4 hr |
| Sep 2, 11:35 PM EDT | Areal Flood Advisory | JKL | 2 hr |
| Sep 2, 11:43 PM EDT | Areal Flood Advisory | JKL | 2 hr |
| Sep 3, 1:22 AM EDT | Areal Flood Advisory | JKL | 3 hr |
| Sep 3, 1:49 AM EDT | Flash Flood Warning | JKL | 6 hr |
| Sep 6, 2:27 AM EDT | Dense Fog Advisory | JKL | 7 hr |
| Sep 12, 11:50 PM EDT | Dense Fog Advisory | JKL | 6 hr |
| Sep 22, 1:07 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Sep 26, 12:50 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Sep 26, 11:37 PM EDT | Dense Fog Advisory | JKL | 10 hr |
| Oct 3, 4:09 PM EDT | Flash Flood Warning | JKL | 4 hr |
| Oct 6, 1:27 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 17, 9:38 PM EDT | Dense Fog Advisory | JKL | 14 hr |
| Oct 19, 8:02 PM EDT | Frost Advisory | JKL | 13 hr |
| Oct 20, 4:00 AM EDT | Dense Fog Advisory | JKL | 8 hr |
| Oct 23, 6:38 AM EDT | Freeze Watch | JKL | 3 days |
| Oct 23, 3:20 PM EDT | Freeze Warning | JKL | 12 hr |
| Oct 24, 3:34 AM EDT | Freeze Warning | JKL | 30 hr |
| Oct 29, 1:24 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Oct 29, 10:10 AM EDT | Dense Fog Advisory | JKL | 48 min |
| Oct 30, 2:29 PM EDT | Lake Wind Advisory | JKL | 23 hr |
| Oct 31, 4:01 AM EDT | Wind Advisory | JKL | 26 hr |
| Nov 1, 12:46 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 11, 4:00 PM EST | Winter Weather Advisory | JKL | 16 hr |
| Nov 12, 7:56 AM EST | Winter Weather Advisory | JKL | 3 hr |
| Nov 16, 3:09 PM EST | Lake Wind Advisory | JKL | 12 hr |
| Nov 16, 3:09 PM EST | Wind Advisory | JKL | 32 hr |
| Nov 17, 6:16 PM EST | Mesoscale Discussion | SPC | 59 min |
| Nov 17, 7:21 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 26, 3:24 AM EST | Winter Weather Advisory | JKL | 39 hr |
| Nov 26, 10:04 AM EST | Areal Flood Advisory | JKL | 6 hr |
| Nov 26, 4:00 PM EST | Areal Flood Advisory | JKL | 6 hr |
| Dec 4, 3:40 PM EST | Flood Watch | JKL | 55 hr |
| Dec 6, 4:12 AM EST | Winter Weather Advisory | JKL | 27 hr |
| Dec 6, 1:03 PM EST | Areal Flood Advisory | JKL | 6 hr |
| Dec 6, 5:04 PM EST | Areal Flood Warning | JKL | 17 hr |
| Dec 6, 5:42 PM EST | Areal Flood Warning | JKL | 17 hr |
| Dec 7, 4:52 AM EST | River Flood Advisory | JKL | 29 hr |
| Dec 7, 9:02 AM EST | Winter Weather Advisory | JKL | 29 hr |
| Dec 7, 9:11 AM EST | Flood Watch | JKL | 43 hr |
| Dec 8, 2:28 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 8, 5:59 PM EST | River Flood Warning | JKL | 16 hr |
| Dec 9, 10:11 AM EST | River Flood Advisory | JKL | 21 hr |
| Dec 9, 12:00 PM EST | Winter Weather Advisory | JKL | 23 hr |
| Dec 10, 10:18 AM EST | River Flood Advisory | JKL | 5 hr |
| Dec 20, 3:34 PM EST | Lake Wind Advisory | JKL | 30 hr |
| Dec 21, 9:45 PM EST | Wind Advisory | JKL | 6 hr |
| Dec 21, 11:38 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Dec 22, 1:11 AM EST | Severe Thunderstorm Warning | JKL | 49 min |
| Dec 22, 1:15 AM EST | Severe Thunderstorm Warning | JKL | 45 min |
| Dec 22, 10:09 PM EST | River Flood Advisory | JKL | 25 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 | 11 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 18 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 3 |
| River Flood Warning | 3 |
| Flash Flood Watch | 4 |
| Flood Watch | 4 |
| Areal Flood Advisory | 24 |
| River Flood Advisory | 9 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Weather Advisory | 13 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 6 |
| Wind and dust | |
| Lake Wind Advisory | 5 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 14 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.