Alert archive / Kentucky / Nelson County
Weather alerts in Nelson County, Kentucky, 2023
168 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Nelson County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 168
- Warnings
- 51
- Watches
- 21
- Advisories
- 46
- Busiest month
- July32 alerts
- Busiest day
- January 3, 202312 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 Nelson County in 2023 had a tornado report inside them.
Nelson 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 | 27 | 20 | 26% | 5 | 80% | 18 min |
| Flash flood warnings | 6 | 6 | 0% | 2 | 100% | 64 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Louisville, KY: tornado warnings | 42 | 12 | 71% | 40 | 45% | 18 min |
| NWS Louisville, KY: severe thunderstorm warnings | 328 | 208 | 37% | 560 | 82% | 17 min |
| NWS Louisville, KY: flash flood warnings | 34 | 19 | 44% | 66 | 83% | 63 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 |
|---|---|---|---|
| Dec 31, 9:50 PM EST | Dense Fog Advisory | LMK | 12 hr |
| Jan 3, 3:56 AM EST | Tornado Watch | SPC | 8 hr |
| Jan 3, 4:06 AM EST | Flood Watch | LMK | 9 hr |
| Jan 3, 4:11 AM EST | Flash Flood Warning | LMK | 7 hr |
| Jan 3, 4:17 AM EST | Severe Thunderstorm Warning | LMK | 28 min |
| Jan 3, 4:43 AM EST | Special Weather Statement | LMK | 32 min |
| Jan 3, 6:02 AM EST | Flash Flood Warning | LMK | 6 hr |
| Jan 3, 7:34 AM EST | Severe Thunderstorm Warning | LMK | 26 min |
| Jan 3, 8:15 AM EST | Special Weather Statement | LMK | 30 min |
| Jan 3, 8:42 AM EST | Areal Flood Advisory | LMK | 6 hr |
| Jan 3, 9:58 AM EST | River Flood Warning | LMK | 25 hr |
| Jan 3, 11:37 AM EST | Areal Flood Warning | LMK | 4 hr |
| Jan 3, 11:53 AM EST | Areal Flood Warning | LMK | 5 hr |
| Jan 12, 5:32 AM EST | Mesoscale Discussion | SPC | 118 min |
| Jan 12, 6:00 AM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Jan 12, 7:47 AM EST | Severe Thunderstorm Warning | LMK | 28 min |
| Jan 12, 8:08 AM EST | Severe Thunderstorm Warning | LMK | 37 min |
| Jan 12, 8:14 AM EST | Tornado Warning | LMK | 31 min |
| Jan 12, 8:28 AM EST | Tornado Warning | LMK | 22 min |
| Jan 12, 10:27 AM EST | Areal Flood Advisory | LMK | 4 hr |
| Jan 13, 10:37 PM EST | Winter Weather Advisory | LMK | 5 hr |
| Jan 18, 2:55 PM EST | Wind Advisory | LMK | 28 hr |
| Jan 24, 2:50 PM EST | Wind Advisory | LMK | 28 hr |
| Jan 27, 2:52 AM EST | Wind Advisory | LMK | 16 hr |
| Jan 30, 3:34 AM EST | Winter Weather Advisory | LMK | 32 hr |
| Jan 31, 3:12 AM EST | Winter Weather Advisory | LMK | 28 hr |
| Feb 8, 3:15 AM EST | Wind Advisory | LMK | 40 hr |
| Feb 9, 12:14 PM EST | High Wind Warning | LMK | 4 hr |
| Feb 13, 2:53 PM EST | Wind Advisory | LMK | 33 hr |
| Feb 16, 3:35 AM EST | Flood Watch | LMK | 15 hr |
| Feb 16, 8:00 AM EST | Areal Flood Advisory | LMK | 4 hr |
| Feb 16, 8:58 AM EST | Flash Flood Warning | LMK | 3 hr |
| Feb 16, 9:46 AM EST | Areal Flood Advisory | LMK | 3 hr |
| Feb 16, 10:18 AM EST | Areal Flood Advisory | LMK | 3 hr |
| Feb 16, 11:49 AM EST | Flash Flood Warning | LMK | 3 hr |
| Feb 16, 12:25 PM EST | Flash Flood Warning | LMK | 4 hr |
| Feb 16, 1:13 PM EST | Areal Flood Advisory | LMK | 7 hr |
| Feb 16, 2:57 PM EST | Areal Flood Warning | LMK | 5 hr |
| Feb 16, 4:42 PM EST | Areal Flood Warning | LMK | 4 hr |
| Feb 17, 1:50 AM EST | River Flood Advisory | LMK | 9 hr |
| Feb 17, 10:53 AM EST | River Flood Warning | LMK | 58 hr |
| Feb 21, 3:52 PM EST | Wind Advisory | LMK | 30 hr |
| Feb 22, 11:53 PM EST | Areal Flood Advisory | LMK | 4 hr |
| Feb 23, 2:07 AM EST | Areal Flood Advisory | LMK | 4 hr |
| Feb 26, 4:14 AM EST | Wind Advisory | LMK | 35 hr |
| Feb 27, 9:40 AM EST | Special Weather Statement | LMK | 50 min |
| Feb 27, 2:49 PM EST | High Wind Warning | LMK | 2 hr |
| Feb 27, 5:01 PM EST | Wind Advisory | LMK | 119 min |
| Mar 1, 5:56 PM EST | Mesoscale Discussion | SPC | 64 min |
| Mar 1, 8:16 PM EST | Special Weather Statement | LMK | 44 min |
| Mar 2, 3:39 AM EST | Flood Watch | LMK | 36 hr |
| Mar 2, 3:41 AM EST | Wind Advisory | LMK | 44 hr |
| Mar 2, 1:45 PM EST | High Wind Warning | LMK | 32 hr |
| Mar 3, 11:15 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 3, 12:07 PM EST | Tornado Watch | SPC | 4 hr |
| Mar 3, 2:40 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Mar 22, 2:50 PM EDT | Flood Watch | LMK | 60 hr |
| Mar 24, 12:41 PM EDT | Wind Advisory | LMK | 28 hr |
| Mar 25, 1:38 AM EDT | Areal Flood Advisory | LMK | 3 hr |
| Mar 31, 3:50 AM EDT | Wind Advisory | LMK | 37 hr |
| Mar 31, 7:59 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 1, 12:20 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Apr 1, 10:30 AM EDT | High Wind Warning | LMK | 5 hr |
| Apr 1, 10:30 AM EDT | Wind Advisory | LMK | 7 hr |
| Apr 4, 2:00 PM EDT | Wind Advisory | LMK | 30 hr |
| Apr 5, 1:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Apr 5, 2:38 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 5, 4:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 5, 4:49 PM EDT | Severe Thunderstorm Warning | LMK | 26 min |
| Apr 5, 5:38 PM EDT | Severe Thunderstorm Warning | LMK | 37 min |
| Apr 16, 2:46 AM EDT | Special Weather Statement | LMK | 44 min |
| Apr 19, 3:26 AM EDT | Fire Weather Watch | LMK | 12 hr |
| Apr 19, 3:24 PM EDT | Red Flag Warning | LMK | 29 hr |
| Apr 21, 2:34 PM EDT | Special Weather Statement | LMK | 26 min |
| Apr 22, 3:38 AM EDT | Frost Advisory | LMK | 29 hr |
| Apr 23, 4:00 AM EDT | Freeze Warning | LMK | 29 hr |
| Apr 30, 2:53 PM EDT | Special Weather Statement | LMK | 37 min |
| Apr 30, 3:34 PM EDT | Special Weather Statement | LMK | 56 min |
| Apr 30, 4:28 PM EDT | Special Weather Statement | LMK | 47 min |
| Apr 30, 5:00 PM EDT | Special Weather Statement | LMK | 45 min |
| May 1, 2:49 AM EDT | Wind Advisory | LMK | 17 hr |
| May 7, 9:07 AM EDT | Severe Thunderstorm Warning | LMK | 23 min |
| May 7, 9:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| May 7, 9:36 AM EDT | Special Weather Statement | LMK | 54 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, 1:13 PM EDT | Severe Thunderstorm Warning | LMK | 47 min |
| May 16, 1:27 PM EDT | Tornado Warning | LMK | 48 min |
| May 16, 1:44 PM EDT | Severe Thunderstorm Warning | LMK | 46 min |
| May 17, 5:21 AM EDT | Dense Fog Advisory | LMK | 3 hr |
| Jun 8, 1:03 AM EDT | Dense Fog Advisory | LMK | 8 hr |
| Jun 11, 2:56 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 11, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 8:43 AM EDT | Special Weather Statement | LMK | 47 min |
| Jun 25, 3:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 25, 3:54 PM EDT | Tornado Watch | SPC | 7 hr |
| Jun 25, 5:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 25, 6:45 PM EDT | Severe Thunderstorm Warning | LMK | 30 min |
| Jun 25, 6:59 PM EDT | Severe Thunderstorm Warning | LMK | 19 min |
| Jun 25, 7:13 PM EDT | Severe Thunderstorm Warning | LMK | 47 min |
| Jun 25, 9:14 PM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Jun 25, 9:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 25, 9:42 PM EDT | Severe Thunderstorm Warning | LMK | 48 min |
| Jun 25, 9:59 PM EDT | Severe Thunderstorm Warning | LMK | 19 min |
| Jun 25, 10:21 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 10:57 PM EDT | Severe Thunderstorm Warning | LMK | 33 min |
| Jun 29, 3:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 29, 4:17 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 5:19 PM EDT | Special Weather Statement | LMK | 26 min |
| Jul 1, 1:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 1, 4:35 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 1, 10:40 PM EDT | Special Weather Statement | LMK | 35 min |
| Jul 2, 4:52 AM EDT | Special Weather Statement | LMK | 23 min |
| Jul 2, 12:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 1:33 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 2, 2:54 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 2, 3:06 PM EDT | Severe Thunderstorm Warning | LMK | 24 min |
| Jul 2, 3:28 PM EDT | Severe Thunderstorm Warning | LMK | 47 min |
| Jul 2, 3:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 4:49 PM EDT | Special Weather Statement | LMK | 41 min |
| Jul 2, 6:19 PM EDT | Special Weather Statement | LMK | 26 min |
| Jul 2, 6:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 10, 1:05 AM EDT | Dense Fog Advisory | LMK | 8 hr |
| Jul 18, 2:59 AM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Jul 18, 3:28 AM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Jul 18, 2:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 6:31 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 18, 7:01 PM EDT | Flash Flood Warning | LMK | 3 hr |
| Jul 20, 6:46 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 24, 2:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 24, 3:37 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 24, 6:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 24, 7:29 PM EDT | Severe Thunderstorm Warning | LMK | 31 min |
| Jul 24, 7:37 PM EDT | Special Weather Statement | LMK | 23 min |
| Jul 24, 8:16 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 24, 8:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 24, 9:02 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Jul 26, 3:42 AM EDT | Heat Advisory | LMK | 65 hr |
| Jul 29, 3:02 AM EDT | Heat Advisory | LMK | 17 hr |
| Jul 29, 9:33 PM EDT | Special Weather Statement | LMK | 27 min |
| Jul 29, 11:06 PM EDT | Areal Flood Advisory | LMK | 3 hr |
| Aug 3, 6:00 AM EDT | Areal Flood Advisory | LMK | 4 hr |
| Aug 4, 1:55 AM EDT | Dense Fog Advisory | LMK | 8 hr |
| Aug 5, 2:56 AM EDT | Dense Fog Advisory | LMK | 6 hr |
| Aug 7, 2:15 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 10:57 AM EDT | Tornado Watch | SPC | 7 hr |
| Aug 12, 8:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 12, 11:09 AM EDT | Severe Thunderstorm Warning | LMK | 21 min |
| Aug 14, 8:49 PM EDT | Special Weather Statement | LMK | 26 min |
| Aug 19, 2:47 PM EDT | Excessive Heat Watch | LMK | 37 hr |
| Aug 20, 3:19 PM EDT | Excessive Heat Warning | LMK | 5 days |
| Aug 22, 3:07 PM EDT | Excessive Heat Warning | LMK | 4 days |
| Aug 22, 3:07 PM EDT | Heat Advisory | LMK | 3 days |
| Aug 25, 7:13 PM EDT | Severe Thunderstorm Warning | LMK | 32 min |
| Aug 25, 7:50 PM EDT | Severe Thunderstorm Warning | LMK | 25 min |
| Aug 25, 8:21 PM EDT | Severe Thunderstorm Warning | LMK | 24 min |
| Aug 25, 8:38 PM EDT | Severe Thunderstorm Warning | LMK | 37 min |
| Aug 25, 9:08 PM EDT | Special Weather Statement | LMK | 37 min |
| Aug 25, 9:13 PM EDT | Special Weather Statement | LMK | 32 min |
| Sep 27, 7:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 27, 11:53 PM EDT | Special Weather Statement | LMK | 37 min |
| Sep 28, 12:25 AM EDT | Special Weather Statement | LMK | 35 min |
| Oct 22, 3:22 AM EDT | Frost Advisory | LMK | 31 hr |
| Oct 29, 3:46 AM EDT | Freeze Watch | LMK | 24 hr |
| Oct 30, 3:32 AM EDT | Freeze Warning | LMK | 30 hr |
| Dec 5, 2:46 AM EST | Dense Fog Advisory | LMK | 4 hr |
| Dec 9, 6:33 PM EST | Special Weather Statement | LMK | 27 min |
| Dec 17, 2:31 PM EST | Winter Weather Advisory | LMK | 25 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.