Alert archive / Tennessee / Lewis County
Weather alerts in Lewis County, Tennessee, 2016
95 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lewis County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 95
- Warnings
- 16
- Watches
- 13
- Advisories
- 28
- Busiest month
- August15 alerts
- Busiest day
- March 31, 20166 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 2 tornado warnings covering Lewis County in 2016 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 31 minutes after it went out.
Lewis County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 100% | 31 min |
| Severe thunderstorm warnings | 9 | 5 | 44% | 2 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 24 | 2 | 92% | 7 | 100% | 17 min |
| NWS Nashville, TN: severe thunderstorm warnings | 242 | 154 | 36% | 689 | 71% | 18 min |
| NWS Nashville, TN: flash flood warnings | 31 | 21 | 32% | 94 | 93% | 106 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 19, 3:53 AM CST | Winter Weather Advisory | OHX | 34 hr |
| Jan 20, 1:15 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 20, 2:13 PM CST | Winter Storm Watch | OHX | 25 hr |
| Jan 20, 8:05 PM CST | Freezing Fog Advisory | OHX | 13 hr |
| Jan 21, 4:05 AM CST | Winter Storm Warning | OHX | 56 hr |
| Feb 1, 3:22 PM CST | Wind Advisory | OHX | 36 hr |
| Feb 2, 1:52 AM CST | Dense Fog Advisory | OHX | 6 hr |
| Feb 2, 2:40 PM CST | Mesoscale Discussion | SPC | 95 min |
| Feb 2, 3:10 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 2, 4:31 PM CST | Special Weather Statement | OHX | 29 min |
| Feb 2, 5:31 PM CST | Mesoscale Discussion | SPC | 119 min |
| Feb 2, 8:50 PM CST | Mesoscale Discussion | SPC | 55 min |
| Feb 15, 7:04 PM CST | Dense Fog Advisory | OHX | 13 hr |
| Feb 18, 2:53 PM CST | Wind Advisory | OHX | 27 hr |
| Feb 24, 1:39 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Mar 19, 2:37 PM CDT | Freeze Watch | OHX | 13 hr |
| Mar 20, 3:35 AM CDT | Freeze Warning | OHX | 29 hr |
| Mar 21, 3:09 AM CDT | Frost Advisory | OHX | 30 hr |
| Mar 24, 10:15 AM CDT | Wind Advisory | OHX | 9 hr |
| Mar 25, 2:38 PM CDT | Frost Advisory | OHX | 18 hr |
| Mar 31, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Mar 31, 3:59 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 31, 4:14 PM CDT | Tornado Warning | OHX | 46 min |
| Mar 31, 4:48 PM CDT | Tornado Warning | OHX | 42 min |
| Mar 31, 4:49 PM CDT | Severe Thunderstorm Warning | OHX | 26 min |
| Mar 31, 5:14 PM CDT | Severe Thunderstorm Warning | OHX | 46 min |
| Apr 2, 3:19 AM CDT | Frost Advisory | OHX | 29 hr |
| Apr 5, 8:15 PM CDT | Wind Advisory | OHX | 23 hr |
| Apr 8, 2:50 AM CDT | Freeze Warning | OHX | 29 hr |
| Apr 10, 3:26 PM CDT | Wind Advisory | OHX | 7 hr |
| Apr 27, 3:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 1, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 1, 5:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 12, 9:10 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 12, 12:12 PM CDT | Severe Thunderstorm Warning | OHX | 33 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 15, 4:03 PM CDT | Special Weather Statement | OHX | 42 min |
| Jun 15, 4:45 PM CDT | Special Weather Statement | OHX | 45 min |
| Jun 16, 2:42 PM CDT | Heat Advisory | OHX | 4 hr |
| Jun 24, 4:24 AM CDT | Special Weather Statement | OHX | 51 min |
| Jun 24, 4:40 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jun 24, 5:37 AM CDT | Special Weather Statement | OHX | 53 min |
| Jun 25, 6:59 PM CDT | Special Weather Statement | OHX | 46 min |
| Jun 27, 1:37 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 6, 1:24 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 4:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 8, 7:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 8, 8:22 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 8, 9:38 PM CDT | Special Weather Statement | OHX | 52 min |
| Jul 10, 9:09 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 14, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 11:36 AM CDT | Special Weather Statement | OHX | 24 min |
| Jul 14, 11:41 AM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Jul 21, 2:36 PM CDT | Heat Advisory | OHX | 3 days |
| Jul 22, 11:36 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 1:58 PM CDT | Flash Flood Watch | OHX | 31 hr |
| Jul 31, 1:41 PM CDT | Special Weather Statement | OHX | 34 min |
| Jul 31, 2:11 PM CDT | Special Weather Statement | OHX | 34 min |
| Aug 1, 5:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 1, 5:51 PM CDT | Special Weather Statement | OHX | 39 min |
| Aug 2, 7:36 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 2, 8:47 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 3, 4:08 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Aug 3, 1:51 PM CDT | Special Weather Statement | OHX | 39 min |
| Aug 5, 3:34 AM CDT | Heat Advisory | OHX | 15 hr |
| Aug 14, 6:17 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Aug 26, 5:08 PM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Aug 26, 5:35 PM CDT | Special Weather Statement | OHX | 40 min |
| Aug 26, 5:40 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Aug 26, 6:03 PM CDT | Severe Thunderstorm Warning | OHX | 27 min |
| Aug 26, 6:12 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Aug 26, 8:11 PM CDT | Special Weather Statement | OHX | 34 min |
| Aug 27, 4:02 PM CDT | Special Weather Statement | OHX | 43 min |
| Sep 10, 1:05 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 20, 12:28 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Nov 9, 2:04 PM CST | Frost Advisory | OHX | 18 hr |
| Nov 10, 2:02 PM CST | Frost Advisory | OHX | 18 hr |
| Nov 12, 12:58 PM CST | Freeze Warning | OHX | 19 hr |
| Nov 18, 1:21 PM CST | Freeze Watch | OHX | 14 hr |
| Nov 19, 2:57 AM CST | Freeze Warning | OHX | 30 hr |
| Nov 27, 1:57 PM CST | Wind Advisory | OHX | 34 hr |
| Nov 28, 5:22 PM CST | Special Weather Statement | OHX | 23 min |
| Nov 28, 5:24 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Nov 29, 6:47 PM CST | Tornado Watch | SPC | 8 hr |
| Dec 17, 11:23 AM CST | Winter Weather Advisory | OHX | 25 hr |
| Dec 17, 1:42 PM CST | Tornado Watch | SPC | 7 hr |
| 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 21, 12:50 AM CST | Freezing Fog Advisory | OHX | 8 hr |
| Dec 24, 6:43 PM CST | Dense Fog Advisory | OHX | 14 hr |
| Dec 28, 3:51 PM CST | Mesoscale Discussion | SPC | 114 min |
| Dec 28, 6:20 PM CST | Special Weather Statement | OHX | 40 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 | 9 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| 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.