Alert archive / Kentucky / Knox County
Weather alerts in Knox County, Kentucky, 2023
108 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 108
- Warnings
- 22
- Watches
- 16
- Advisories
- 39
- Busiest month
- April18 alerts
- Busiest day
- August 7, 20238 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 3 tornado warnings covering Knox County in 2023 had a tornado report inside them.
Knox County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 12 | 0% | 4 | 75% | 20 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, KY: tornado warnings | 18 | 1 | 94% | 2 | 50% | 2 min |
| NWS Jackson, KY: severe thunderstorm warnings | 153 | 103 | 33% | 318 | 87% | 18 min |
| NWS Jackson, KY: flash flood warnings | 15 | 4 | 73% | 10 | 70% | 65 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 3, 2:09 PM EST | Special Weather Statement | JKL | 36 min |
| Jan 12, 4:09 AM EST | Winter Weather Advisory | JKL | 51 hr |
| Jan 12, 9:41 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Jan 12, 12:44 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 24, 2:09 PM EST | Wind Advisory | JKL | 29 hr |
| Jan 31, 12:59 PM EST | Winter Weather Advisory | JKL | 18 hr |
| Feb 8, 4:40 AM EST | Wind Advisory | JKL | 38 hr |
| Feb 16, 3:00 AM EST | Flood Watch | JKL | 25 hr |
| Feb 17, 12:37 AM EST | Areal Flood Advisory | JKL | 3 hr |
| Feb 17, 1:29 AM EST | Areal Flood Advisory | JKL | 4 hr |
| Feb 17, 2:50 AM EST | River Flood Advisory | JKL | 11 hr |
| Feb 17, 5:27 AM EST | River Flood Warning | JKL | 49 hr |
| Feb 19, 6:56 AM EST | River Flood Advisory | JKL | 13 hr |
| Feb 26, 2:59 AM EST | Wind Advisory | JKL | 43 hr |
| Mar 2, 3:24 AM EST | High Wind Watch | JKL | 11 hr |
| Mar 2, 1:55 PM EST | High Wind Warning | JKL | 33 hr |
| Mar 3, 12:07 PM EST | Tornado Watch | SPC | 4 hr |
| Mar 3, 10:50 PM EST | Wind Advisory | JKL | 4 hr |
| Mar 24, 12:35 PM EDT | Wind Advisory | JKL | 31 hr |
| Mar 31, 4:33 AM EDT | Wind Advisory | JKL | 30 hr |
| Mar 31, 3:22 PM EDT | High Wind Warning | JKL | 27 hr |
| Apr 1, 2:49 AM EDT | Tornado Watch | SPC | 4 hr |
| Apr 1, 3:09 AM EDT | Tornado Warning | JKL | 36 min |
| Apr 1, 3:16 AM EDT | Special Weather Statement | JKL | 59 min |
| Apr 1, 3:45 AM EDT | Tornado Warning | JKL | 30 min |
| Apr 1, 4:01 AM EDT | Special Weather Statement | JKL | 44 min |
| Apr 1, 4:15 AM EDT | Special Weather Statement | JKL | 45 min |
| Apr 5, 6:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 7:25 PM EDT | Special Weather Statement | JKL | 35 min |
| Apr 5, 8:05 PM EDT | Special Weather Statement | JKL | 40 min |
| Apr 8, 3:36 PM EDT | Frost Advisory | JKL | 17 hr |
| Apr 9, 3:35 AM EDT | Frost Advisory | JKL | 29 hr |
| Apr 17, 3:16 PM EDT | Frost Advisory | JKL | 18 hr |
| Apr 19, 3:50 AM EDT | Fire Weather Watch | JKL | 11 hr |
| Apr 19, 2:59 PM EDT | Red Flag Warning | JKL | 29 hr |
| Apr 22, 3:46 AM EDT | Frost Advisory | JKL | 30 hr |
| Apr 23, 3:43 AM EDT | Frost Advisory | JKL | 30 hr |
| Apr 24, 3:37 AM EDT | Freeze Watch | JKL | 8 hr |
| Apr 24, 11:54 AM EDT | Freeze Warning | JKL | 21 hr |
| May 7, 9:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| May 16, 11:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 16, 3:39 PM EDT | Special Weather Statement | JKL | 36 min |
| May 16, 3:44 PM EDT | Severe Thunderstorm Warning | JKL | 46 min |
| May 16, 3:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| May 16, 4:25 PM EDT | Special Weather Statement | JKL | 50 min |
| May 17, 5:39 AM EDT | Dense Fog Advisory | JKL | 4 hr |
| May 20, 10:06 PM EDT | Dense Fog Advisory | JKL | 11 hr |
| Jun 8, 12:03 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Jun 11, 4:34 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 11, 6:58 PM EDT | Severe Thunderstorm Warning | JKL | 32 min |
| Jun 11, 7:22 PM EDT | Special Weather Statement | JKL | 23 min |
| Jun 11, 9:07 PM EDT | Special Weather Statement | JKL | 38 min |
| Jun 11, 9:40 PM EDT | Severe Thunderstorm Warning | JKL | 35 min |
| Jun 25, 10:21 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 26, 12:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 26, 12:32 AM EDT | Severe Thunderstorm Warning | JKL | 43 min |
| Jun 26, 1:18 AM EDT | Severe Thunderstorm Warning | JKL | 27 min |
| Jun 26, 1:23 AM EDT | Areal Flood Advisory | JKL | 2 hr |
| Jun 26, 1:42 AM EDT | Severe Thunderstorm Warning | JKL | 33 min |
| Jun 30, 5:53 AM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jun 30, 5:59 AM EDT | Special Weather Statement | JKL | 46 min |
| Jun 30, 8:59 AM EDT | Areal Flood Advisory | JKL | 2 hr |
| Jul 2, 4:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 10:37 PM EDT | Severe Thunderstorm Warning | JKL | 38 min |
| Jul 2, 11:22 PM EDT | Severe Thunderstorm Warning | JKL | 38 min |
| Jul 2, 11:57 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 9, 12:22 AM EDT | Areal Flood Advisory | JKL | 6 hr |
| Jul 9, 12:44 AM EDT | Flash Flood Warning | JKL | 3 hr |
| Jul 9, 12:53 AM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 10, 4:27 AM EDT | Dense Fog Advisory | JKL | 5 hr |
| Jul 15, 5:50 PM EDT | Areal Flood Advisory | JKL | 3 hr |
| Jul 18, 2:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 8:53 PM EDT | Special Weather Statement | JKL | 52 min |
| Jul 20, 4:44 PM EDT | Special Weather Statement | JKL | 31 min |
| Jul 27, 3:56 AM EDT | Heat Advisory | JKL | 40 hr |
| Jul 29, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 29, 3:44 PM EDT | Severe Thunderstorm Warning | JKL | 61 min |
| Jul 29, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 31, 2:26 AM EDT | Dense Fog Advisory | JKL | 7 hr |
| Aug 4, 12:45 AM EDT | Dense Fog Advisory | JKL | 8 hr |
| Aug 7, 10:19 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Aug 7, 10:57 AM EDT | Tornado Watch | SPC | 7 hr |
| Aug 7, 11:59 AM EDT | Special Weather Statement | JKL | 31 min |
| Aug 7, 12:14 PM EDT | Severe Thunderstorm Warning | JKL | 31 min |
| Aug 7, 12:38 PM EDT | Tornado Warning | JKL | 37 min |
| Aug 7, 12:40 PM EDT | Severe Thunderstorm Warning | JKL | 35 min |
| Aug 7, 1:02 PM EDT | Areal Flood Advisory | JKL | 2 hr |
| Aug 7, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Aug 12, 12:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 1:41 PM EDT | Severe Thunderstorm Warning | JKL | 34 min |
| Aug 25, 9:32 AM EDT | Heat Advisory | JKL | 10 hr |
| Aug 25, 2:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 25, 7:39 PM EDT | Special Weather Statement | JKL | 36 min |
| Aug 25, 8:15 PM EDT | Special Weather Statement | JKL | 45 min |
| Aug 30, 12:54 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Sep 18, 12:24 AM EDT | Dense Fog Advisory | JKL | 9 hr |
| Sep 28, 3:50 AM EDT | Flood Watch | JKL | 7 hr |
| Sep 30, 3:15 AM EDT | Dense Fog Advisory | JKL | 7 hr |
| Oct 7, 2:55 PM EDT | Frost Advisory | JKL | 18 hr |
| Oct 22, 3:00 AM EDT | Frost Advisory | JKL | 31 hr |
| Oct 30, 4:26 AM EDT | Freeze Watch | JKL | 23 hr |
| Oct 31, 3:20 AM EDT | Freeze Warning | JKL | 31 hr |
| Dec 9, 9:53 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 9, 10:22 PM EST | Special Weather Statement | JKL | 38 min |
| Dec 9, 10:48 PM EST | Special Weather Statement | JKL | 57 min |
| Dec 10, 2:48 AM EST | Areal Flood Advisory | JKL | 3 hr |
| Dec 17, 2:05 PM EST | Winter Weather Advisory | JKL | 34 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 | 12 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 18 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 1 |
| Flood Watch | 2 |
| Areal Flood Advisory | 10 |
| River Flood Advisory | 2 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.