Alert archive / Tennessee / Crockett County
Weather alerts in Crockett County, Tennessee, 2020
118 weather alerts in 2020, 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 2020. Tap one for its archive.
- Alerts
- 118
- Warnings
- 29
- Watches
- 19
- Advisories
- 32
- Busiest month
- May22 alerts
- Busiest day
- May 3, 20209 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 3 tornado warnings covering Crockett County in 2020 had a tornado report inside them.
Crockett County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 15 | 12 | 20% | 3 | 100% | 33 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: tornado warnings | 65 | 20 | 69% | 47 | 72% | 10 min |
| NWS Memphis, TN: severe thunderstorm warnings | 221 | 133 | 40% | 420 | 80% | 25 min |
| NWS Memphis, TN: flash flood warnings | 36 | 17 | 53% | 41 | 73% | 73 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, 9:59 AM CST | River Flood Warning | MEG | 8 days |
| Jan 6, 9:20 AM CST | River Flood Advisory | MEG | 4 days |
| Jan 9, 3:49 PM CST | Flash Flood Watch | MEG | 47 hr |
| Jan 10, 3:26 AM CST | Wind Advisory | MEG | 31 hr |
| Jan 10, 9:15 AM CST | River Flood Warning | MEG | 10 days |
| Jan 10, 11:58 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 11, 3:16 AM CST | Severe Thunderstorm Warning | MEG | 44 min |
| Jan 11, 3:52 AM CST | Mesoscale Discussion | SPC | 83 min |
| Jan 11, 3:54 AM CST | Severe Thunderstorm Warning | MEG | 51 min |
| Jan 11, 4:47 AM CST | Special Weather Statement | MEG | 28 min |
| Jan 11, 5:17 AM CST | Special Weather Statement | MEG | 43 min |
| Jan 14, 8:56 AM CST | Dense Fog Advisory | MEG | 2 hr |
| Feb 6, 7:27 PM CST | Winter Weather Advisory | MEG | 13 hr |
| Feb 9, 3:05 AM CST | Flood Watch | MEG | 4 days |
| Feb 10, 10:12 AM CST | River Flood Warning | MEG | 8 days |
| Mar 2, 11:10 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 3, 12:59 AM CST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 3, 2:34 AM CST | Mesoscale Discussion | SPC | 116 min |
| Mar 3, 2:53 AM CST | Severe Thunderstorm Warning | MEG | 29 min |
| Mar 12, 11:13 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 1:13 PM CDT | River Flood Warning | MEG | 21 days |
| Mar 19, 9:50 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 20, 2:22 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 20, 2:30 AM CDT | Tornado Warning | MEG | 30 min |
| Mar 24, 11:27 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 4:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Mar 28, 6:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 28, 7:40 PM CDT | Severe Thunderstorm Warning | MEG | 35 min |
| Mar 28, 8:06 PM CDT | Severe Thunderstorm Warning | MEG | 24 min |
| Mar 28, 8:35 PM CDT | Special Weather Statement | MEG | 40 min |
| Mar 28, 8:51 PM CDT | Severe Thunderstorm Warning | MEG | 39 min |
| Mar 28, 9:07 PM CDT | Severe Thunderstorm Warning | MEG | 38 min |
| Apr 8, 7:04 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 8, 8:33 PM CDT | Severe Thunderstorm Warning | MEG | 42 min |
| Apr 8, 9:30 PM CDT | Special Weather Statement | MEG | 30 min |
| Apr 10, 3:20 PM CDT | Frost Advisory | MEG | 16 hr |
| Apr 12, 3:56 AM CDT | Flash Flood Watch | MEG | 20 hr |
| Apr 12, 3:57 AM CDT | Wind Advisory | MEG | 26 hr |
| Apr 12, 7:06 PM CDT | River Flood Warning | MEG | 9 days |
| Apr 12, 8:19 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 12, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 12, 11:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 13, 1:43 AM CDT | High Wind Warning | MEG | 4 hr |
| Apr 13, 6:06 PM CDT | Freeze Watch | MEG | 24 hr |
| Apr 14, 2:06 PM CDT | Freeze Warning | MEG | 19 hr |
| Apr 15, 3:17 PM CDT | Frost Advisory | MEG | 18 hr |
| Apr 24, 5:45 AM CDT | Dense Fog Advisory | MEG | 3 hr |
| Apr 25, 11:06 AM CDT | Wind Advisory | MEG | 9 hr |
| Apr 28, 7:35 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 28, 11:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 29, 12:52 AM CDT | Special Weather Statement | MEG | 38 min |
| Apr 29, 9:52 AM CDT | Wind Advisory | MEG | 8 hr |
| May 3, 11:44 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 3, 12:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 3, 2:48 PM CDT | Severe Thunderstorm Warning | MEG | 42 min |
| May 3, 3:10 PM CDT | Severe Thunderstorm Warning | MEG | 50 min |
| May 3, 4:19 PM CDT | Severe Thunderstorm Warning | MEG | 41 min |
| May 3, 5:25 PM CDT | Severe Thunderstorm Warning | MEG | 50 min |
| May 3, 6:06 PM CDT | Special Weather Statement | MEG | 9 min |
| May 3, 6:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 3, 6:43 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| May 4, 2:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 4, 2:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 3:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| May 4, 6:03 PM CDT | Severe Thunderstorm Warning | MEG | 27 min |
| May 4, 6:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 4, 6:24 PM CDT | Severe Thunderstorm Warning | MEG | 36 min |
| May 4, 6:41 PM CDT | Severe Thunderstorm Warning | MEG | 49 min |
| May 4, 6:53 PM CDT | Flash Flood Warning | MEG | 3 hr |
| May 4, 7:26 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| May 7, 3:19 PM CDT | Wind Advisory | MEG | 28 hr |
| May 8, 3:03 AM CDT | Frost Advisory | MEG | 29 hr |
| May 22, 4:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 25, 3:09 PM CDT | Special Weather Statement | MEG | 51 min |
| Jun 4, 5:29 PM CDT | Tornado Warning | MEG | 31 min |
| Jun 5, 11:03 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 3:00 PM CDT | Wind Advisory | MEG | 52 hr |
| Jun 30, 8:01 PM CDT | Special Weather Statement | MEG | 44 min |
| Jul 1, 11:26 AM CDT | Flash Flood Watch | MEG | 17 hr |
| Jul 1, 2:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 2, 4:11 AM CDT | Dense Fog Advisory | MEG | 5 hr |
| Jul 7, 12:11 PM CDT | River Flood Warning | MEG | 47 hr |
| Jul 14, 2:47 PM CDT | Heat Advisory | MEG | 28 hr |
| Jul 15, 2:23 PM CDT | Heat Advisory | MEG | 28 hr |
| Jul 16, 12:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 3:24 PM CDT | Special Weather Statement | MEG | 36 min |
| Jul 19, 5:24 PM CDT | Special Weather Statement | MEG | 21 min |
| Jul 31, 3:35 AM CDT | Special Weather Statement | MEG | 25 min |
| Aug 2, 1:21 AM CDT | Dense Fog Advisory | MEG | 8 hr |
| Aug 9, 3:29 PM CDT | Heat Advisory | MEG | 28 hr |
| Aug 11, 12:34 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 3:15 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| Aug 22, 2:12 AM CDT | Dense Fog Advisory | MEG | 7 hr |
| Aug 23, 3:00 AM CDT | Dense Fog Advisory | MEG | 7 hr |
| Aug 27, 1:04 AM CDT | Flash Flood Watch | MEG | 51 hr |
| Aug 27, 2:33 AM CDT | Wind Advisory | MEG | 37 hr |
| Aug 28, 5:55 AM CDT | Tornado Warning | MEG | 10 min |
| Aug 28, 6:47 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 30, 11:03 PM CDT | Special Weather Statement | MEG | 27 min |
| Aug 30, 11:55 PM CDT | Special Weather Statement | MEG | 50 min |
| Aug 31, 12:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Sep 1, 9:49 AM CDT | Flash Flood Watch | MEG | 41 hr |
| Sep 1, 2:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Sep 1, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 1, 6:13 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Sep 2, 12:35 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 13, 2:59 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| Oct 12, 12:28 AM CDT | Dense Fog Advisory | MEG | 9 hr |
| Oct 16, 9:42 AM CDT | Frost Advisory | MEG | 22 hr |
| Oct 23, 1:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 30, 1:34 PM CDT | Frost Advisory | MEG | 19 hr |
| Oct 31, 2:45 PM CDT | Freeze Watch | MEG | 13 hr |
| Nov 1, 3:05 AM CST | Freeze Warning | MEG | 30 hr |
| Nov 14, 7:19 PM CST | Wind Advisory | MEG | 15 hr |
| Nov 19, 4:17 AM CST | Red Flag Warning | MEG | 14 hr |
| Nov 23, 5:41 AM CST | Freezing Fog Advisory | MEG | 2 hr |
| Nov 24, 2:03 PM CST | Wind Advisory | MEG | 24 hr |
| Dec 20, 3:05 AM CST | Dense Fog Advisory | MEG | 6 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 | 15 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 13 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 6 |
| Flash Flood Watch | 5 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 1 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 9 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.