Alert archive / Tennessee / Crockett County
Weather alerts in Crockett County, Tennessee, 2021
126 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Crockett County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 126
- Warnings
- 28
- Watches
- 21
- Advisories
- 39
- Busiest month
- February22 alerts
- Busiest day
- December 11, 20217 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 1 tornado warnings covering Crockett County in 2021 had a tornado report inside them.
Crockett County, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 11 | 5 | 55% | 3 | 33% | 51 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2021
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: tornado warnings | 83 | 35 | 58% | 62 | 89% | 22 min |
| NWS Memphis, TN: severe thunderstorm warnings | 223 | 111 | 50% | 326 | 72% | 22 min |
| NWS Memphis, TN: flash flood warnings | 92 | 56 | 39% | 111 | 86% | 108 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 1, 9:44 AM CST | River Flood Warning | MEG | 11 hr |
| Jan 22, 1:58 AM CST | Dense Fog Advisory | MEG | 6 hr |
| Jan 24, 6:14 PM CST | Dense Fog Advisory | MEG | 12 hr |
| Jan 25, 7:59 PM CST | Dense Fog Advisory | MEG | 13 hr |
| Feb 9, 4:01 AM CST | Winter Storm Watch | MEG | 33 hr |
| Feb 9, 2:54 PM CST | Ice Storm Warning | MEG | 45 hr |
| Feb 10, 10:36 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 11, 4:02 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 12, 12:40 AM CST | Winter Weather Advisory | MEG | 5 hr |
| Feb 12, 3:17 PM CST | Winter Storm Watch | MEG | 24 hr |
| Feb 13, 2:53 PM CST | Wind Chill Advisory | MEG | 21 hr |
| Feb 13, 2:53 PM CST | Winter Storm Warning | MEG | 54 hr |
| Feb 15, 5:57 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 15, 3:02 PM CST | Wind Chill Advisory | MEG | 21 hr |
| Feb 15, 8:48 PM CST | Winter Storm Watch | MEG | 19 hr |
| Feb 16, 4:15 AM CST | Winter Storm Warning | MEG | 53 hr |
| Feb 17, 3:22 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 18, 9:07 AM CST | Winter Weather Advisory | MEG | 6 hr |
| Feb 18, 2:54 PM CST | Wind Chill Advisory | MEG | 18 hr |
| Feb 27, 2:55 AM CST | Flood Watch | MEG | 56 hr |
| Feb 27, 12:18 PM CST | River Flood Warning | MEG | 11 days |
| Feb 27, 6:06 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 27, 9:03 PM CST | Dense Fog Advisory | MEG | 7 hr |
| Feb 28, 1:01 PM CST | Mesoscale Discussion | SPC | 119 min |
| Feb 28, 2:22 PM CST | Tornado Watch | SPC | 8 hr |
| Feb 28, 4:40 PM CST | Mesoscale Discussion | SPC | 95 min |
| Feb 28, 6:27 PM CST | Mesoscale Discussion | SPC | 93 min |
| Feb 28, 8:09 PM CST | Areal Flood Warning | MEG | 6 hr |
| Feb 28, 8:21 PM CST | Areal Flood Advisory | MEG | 6 hr |
| Mar 17, 12:59 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 17, 5:26 PM CDT | River Flood Warning | MEG | 15 hr |
| Mar 22, 8:52 PM CDT | Wind Advisory | MEG | 19 hr |
| Mar 25, 5:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 27, 2:44 AM CDT | Flash Flood Watch | MEG | 24 hr |
| Mar 27, 11:29 AM CDT | River Flood Warning | MEG | 14 days |
| Mar 27, 11:55 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 27, 1:51 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 27, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 27, 6:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 7:35 PM CDT | Severe Thunderstorm Warning | MEG | 40 min |
| Mar 27, 9:01 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 27, 9:20 PM CDT | Severe Thunderstorm Warning | MEG | 40 min |
| Mar 27, 9:58 PM CDT | Severe Thunderstorm Warning | MEG | 47 min |
| Mar 31, 5:31 AM CDT | Freeze Watch | MEG | 9 hr |
| Mar 31, 5:31 AM CDT | Freeze Warning | MEG | 27 hr |
| Mar 31, 2:34 PM CDT | Freeze Warning | MEG | 42 hr |
| Apr 1, 2:06 PM CDT | Freeze Warning | MEG | 43 hr |
| Apr 7, 5:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 9, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 9, 5:34 PM CDT | Severe Thunderstorm Warning | MEG | 41 min |
| Apr 9, 6:08 PM CDT | Severe Thunderstorm Warning | MEG | 52 min |
| Apr 9, 6:56 PM CDT | Severe Thunderstorm Warning | MEG | 15 min |
| Apr 9, 7:41 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| Apr 19, 7:12 AM CDT | Dense Fog Advisory | MEG | 108 min |
| Apr 21, 3:02 AM CDT | Frost Advisory | MEG | 30 hr |
| Apr 21, 3:19 PM CDT | Freeze Warning | MEG | 18 hr |
| Apr 25, 3:00 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| Apr 29, 5:32 AM CDT | Special Weather Statement | MEG | 28 min |
| Apr 29, 11:12 PM CDT | Dense Fog Advisory | MEG | 10 hr |
| May 4, 1:06 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 4, 1:41 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 3:28 AM CDT | Severe Thunderstorm Warning | MEG | 47 min |
| May 4, 3:46 AM CDT | Special Weather Statement | MEG | 44 min |
| May 4, 4:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| May 4, 11:40 AM CDT | River Flood Warning | MEG | 7 days |
| May 6, 10:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| May 6, 12:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 6, 12:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 6, 2:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 6, 3:39 PM CDT | Special Weather Statement | MEG | 36 min |
| May 8, 3:13 PM CDT | Wind Advisory | MEG | 26 hr |
| May 9, 9:20 AM CDT | Special Weather Statement | MEG | 25 min |
| May 9, 12:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 9, 2:27 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 9, 5:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 26, 9:11 PM CDT | Dense Fog Advisory | MEG | 12 hr |
| May 27, 5:21 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 21, 11:35 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 1, 7:46 PM CDT | River Flood Warning | MEG | 10 hr |
| Jul 11, 12:24 AM CDT | Severe Thunderstorm Warning | MEG | 51 min |
| Jul 11, 1:13 AM CDT | Special Weather Statement | MEG | 32 min |
| Jul 24, 4:51 AM CDT | Dense Fog Advisory | MEG | 3 hr |
| Jul 24, 2:24 PM CDT | Heat Advisory | MEG | 29 hr |
| Jul 26, 2:36 PM CDT | Heat Advisory | MEG | 28 hr |
| Jul 26, 5:05 PM CDT | Special Weather Statement | MEG | 25 min |
| Jul 28, 2:38 PM CDT | Heat Advisory | MEG | 29 hr |
| Jul 29, 2:51 PM CDT | Heat Advisory | MEG | 29 hr |
| Jul 30, 2:41 AM CDT | Heat Advisory | MEG | 41 hr |
| Jul 31, 9:26 PM CDT | Severe Thunderstorm Warning | MEG | 49 min |
| Jul 31, 9:58 PM CDT | Special Weather Statement | MEG | 32 min |
| Jul 31, 10:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 8, 2:21 PM CDT | Heat Advisory | MEG | 4 days |
| Aug 13, 12:24 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 12:59 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| Aug 13, 1:47 PM CDT | Areal Flood Advisory | MEG | 3 hr |
| Aug 13, 10:13 PM CDT | Dense Fog Advisory | MEG | 10 hr |
| Aug 16, 4:00 AM CDT | Dense Fog Advisory | MEG | 5 hr |
| Aug 28, 2:42 PM CDT | Flash Flood Watch | MEG | 66 hr |
| Sep 16, 6:34 AM CDT | Dense Fog Advisory | MEG | 2 hr |
| Sep 18, 6:24 AM CDT | Flash Flood Watch | MEG | 56 hr |
| Oct 6, 10:39 PM CDT | Dense Fog Advisory | MEG | 10 hr |
| Oct 15, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Oct 15, 2:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Oct 15, 5:56 PM CDT | Severe Thunderstorm Warning | MEG | 49 min |
| Oct 17, 3:00 PM CDT | Frost Advisory | MEG | 18 hr |
| Nov 2, 4:02 AM CDT | Freeze Watch | MEG | 23 hr |
| Nov 3, 3:26 AM CDT | Freeze Watch | MEG | 24 hr |
| Nov 3, 3:26 AM CDT | Freeze Warning | MEG | 30 hr |
| Nov 4, 3:14 AM CDT | Freeze Warning | MEG | 30 hr |
| Nov 10, 6:12 AM CST | Dense Fog Advisory | MEG | 2 hr |
| Dec 2, 3:02 AM CST | Dense Fog Advisory | MEG | 6 hr |
| Dec 5, 5:05 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 6, 3:01 AM CST | Mesoscale Discussion | SPC | 59 min |
| Dec 6, 4:25 AM CST | Areal Flood Advisory | MEG | 2 hr |
| Dec 10, 3:07 PM CST | Tornado Watch | SPC | 11 hr |
| Dec 10, 4:45 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 10, 6:22 PM CST | Mesoscale Discussion | SPC | 53 min |
| Dec 10, 9:40 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 10, 10:09 PM CST | Mesoscale Discussion | SPC | 96 min |
| Dec 10, 10:27 PM CST | Tornado Warning | MEG | 48 min |
| Dec 10, 10:44 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 11, 12:57 AM CST | Severe Thunderstorm Warning | MEG | 48 min |
| Dec 11, 6:56 AM CST | Wind Advisory | MEG | 5 hr |
| Dec 25, 9:40 PM CST | Dense Fog Advisory | MEG | 14 hr |
| Dec 29, 9:47 PM CST | Dense Fog Advisory | MEG | 14 hr |
| Dec 30, 7:57 PM CST | Dense Fog Advisory | MEG | 13 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 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 31 |
| Special Weather Statement | 7 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 6 |
| Flash Flood Watch | 3 |
| Flood Watch | 1 |
| Areal Flood Advisory | 5 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 18 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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.