Alert archive / Tennessee / Chester County
Weather alerts in Chester County, Tennessee, 2016
96 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Chester County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 96
- Warnings
- 23
- Watches
- 16
- Advisories
- 25
- Busiest month
- March14 alerts
- Busiest day
- March 31, 20169 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 1 tornado warnings covering Chester County in 2016 had a tornado report inside them.
Chester County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 10 | 3 | 70% | 2 | 100% | 21 min |
| Flash flood warnings | 7 | 2 | 71% | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: tornado warnings | 30 | 7 | 77% | 11 | 64% | 15 min |
| NWS Memphis, TN: severe thunderstorm warnings | 225 | 76 | 66% | 179 | 64% | 23 min |
| NWS Memphis, TN: flash flood warnings | 157 | 36 | 77% | 80 | 74% | 94 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 9, 12:21 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 19, 3:17 AM CST | Winter Weather Advisory | MEG | 31 hr |
| Jan 20, 1:15 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 20, 1:33 PM CST | Winter Storm Watch | MEG | 26 hr |
| Jan 21, 4:39 AM CST | Winter Storm Warning | MEG | 40 hr |
| Jan 22, 3:58 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 1, 3:55 PM CST | Wind Advisory | MEG | 26 hr |
| Feb 2, 12:22 PM CST | Tornado Watch | SPC | 9 hr |
| Feb 2, 1:50 PM CST | Severe Thunderstorm Warning | MEG | 25 min |
| Feb 2, 2:01 PM CST | Tornado Warning | MEG | 29 min |
| Feb 2, 6:13 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 7:09 PM CST | Dense Fog Advisory | MEG | 15 hr |
| Mar 10, 1:55 PM CST | Flash Flood Warning | MEG | 3 hr |
| Mar 19, 3:01 PM CDT | Freeze Watch | MEG | 13 hr |
| Mar 20, 3:55 AM CDT | Freeze Warning | MEG | 29 hr |
| Mar 25, 3:08 PM CDT | Frost Advisory | MEG | 18 hr |
| Mar 29, 3:20 PM CDT | Flash Flood Watch | MEG | 51 hr |
| Mar 31, 10:26 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 31, 10:58 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 31, 2:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Mar 31, 2:35 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 31, 2:46 PM CDT | Severe Thunderstorm Warning | MEG | 44 min |
| Mar 31, 3:25 PM CDT | Severe Thunderstorm Warning | MEG | 50 min |
| Mar 31, 3:33 PM CDT | Severe Thunderstorm Warning | MEG | 42 min |
| Mar 31, 4:38 PM CDT | Areal Flood Advisory | MEG | 2 hr |
| Mar 31, 6:42 PM CDT | Severe Thunderstorm Warning | MEG | 24 min |
| Apr 6, 2:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 8, 3:02 AM CDT | Freeze Warning | MEG | 29 hr |
| Apr 27, 2:54 PM CDT | Special Weather Statement | MEG | 51 min |
| Apr 27, 3:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 1, 1:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 1, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 1, 4:07 PM CDT | Flash Flood Warning | MEG | 113 min |
| May 1, 4:40 PM CDT | Flash Flood Warning | MEG | 3 hr |
| May 1, 5:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 10, 1:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| May 12, 9:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 26, 6:08 PM CDT | Severe Thunderstorm Warning | MEG | 52 min |
| Jun 6, 5:48 AM CDT | Dense Fog Advisory | MEG | 116 min |
| Jun 15, 4:08 AM CDT | Heat Advisory | MEG | 60 hr |
| Jun 15, 12:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 15, 12:39 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 15, 3:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 23, 3:27 AM CDT | Heat Advisory | MEG | 39 hr |
| Jun 25, 10:36 AM CDT | Heat Advisory | MEG | 32 hr |
| Jun 27, 12:42 PM CDT | Special Weather Statement | MEG | 48 min |
| Jun 27, 2:28 PM CDT | Flash Flood Warning | MEG | 3 hr |
| Jun 28, 6:38 PM CDT | Special Weather Statement | MEG | 52 min |
| Jul 6, 10:48 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 1:40 PM CDT | Heat Advisory | MEG | 5 hr |
| Jul 8, 1:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 2:26 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 4:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 8, 7:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 9, 6:37 AM CDT | Flash Flood Warning | MEG | 3 hr |
| Jul 14, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 7:16 AM CDT | Dense Fog Advisory | MEG | 104 min |
| Jul 18, 3:18 AM CDT | Heat Advisory | MEG | 6 days |
| Jul 22, 11:36 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 5:27 PM CDT | Special Weather Statement | MEG | 48 min |
| Jul 29, 7:08 PM CDT | Flash Flood Warning | MEG | 3 hr |
| Aug 1, 5:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 2, 3:03 PM CDT | Heat Advisory | MEG | 4 days |
| Aug 2, 4:10 PM CDT | Special Weather Statement | MEG | 50 min |
| Aug 2, 4:22 PM CDT | Severe Thunderstorm Warning | MEG | 38 min |
| Aug 2, 4:53 PM CDT | Flash Flood Warning | MEG | 2 hr |
| Aug 2, 4:56 PM CDT | Severe Thunderstorm Warning | MEG | 18 min |
| Sep 10, 1:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 7:56 AM CDT | Dense Fog Advisory | MEG | 2 hr |
| Sep 19, 2:30 AM CDT | Dense Fog Advisory | MEG | 7 hr |
| Oct 7, 2:46 PM CDT | Fire Weather Watch | MEG | 13 hr |
| Oct 15, 2:49 AM CDT | Dense Fog Advisory | MEG | 6 hr |
| Oct 21, 3:51 PM CDT | Frost Advisory | MEG | 17 hr |
| Nov 9, 3:12 PM CST | Frost Advisory | MEG | 17 hr |
| Nov 12, 3:19 AM CST | Freeze Watch | MEG | 11 hr |
| Nov 12, 2:08 PM CST | Freeze Warning | MEG | 19 hr |
| Nov 18, 3:22 PM CST | Freeze Watch | MEG | 12 hr |
| Nov 18, 5:56 PM CST | Severe Thunderstorm Warning | MEG | 49 min |
| Nov 19, 3:18 AM CST | Freeze Warning | MEG | 29 hr |
| Nov 26, 4:43 AM CST | Dense Fog Advisory | MEG | 4 hr |
| Nov 27, 12:46 AM CST | Dense Fog Advisory | MEG | 8 hr |
| Nov 27, 2:04 PM CST | Wind Advisory | MEG | 28 hr |
| Nov 29, 3:08 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Nov 29, 3:48 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 17, 12:16 PM CST | Winter Weather Advisory | MEG | 18 hr |
| Dec 17, 1:00 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Dec 17, 1:42 PM CST | Tornado Watch | SPC | 7 hr |
| Dec 17, 4:37 PM CST | Severe Thunderstorm Warning | MEG | 21 min |
| Dec 17, 5:45 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 17, 8:28 PM CST | Mesoscale Discussion | SPC | 62 min |
| Dec 17, 8:58 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 18, 2:30 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 20, 5:47 AM CST | Freezing Fog Advisory | MEG | 4 hr |
| Dec 20, 11:43 PM CST | Freezing Fog Advisory | MEG | 9 hr |
| Dec 24, 6:16 PM CST | Dense Fog Advisory | MEG | 17 hr |
| Dec 28, 3:51 PM CST | Mesoscale Discussion | SPC | 114 min |
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 | 10 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 5 |
| Flooding | |
| Flash Flood Warning | 7 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Freezing Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.