Alert archive / Tennessee / Lewis County
Weather alerts in Lewis County, Tennessee, 2011
175 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 175
- Warnings
- 59
- Watches
- 29
- Advisories
- 30
- Busiest month
- April55 alerts
- Busiest day
- April 20, 201112 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 5 tornado warnings covering Lewis County in 2011 had a tornado report inside them.
Lewis County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 39 | 24 | 38% | 7 | 86% | 17 min |
| Flash flood warnings | 8 | 4 | 50% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 104 | 17 | 84% | 41 | 73% | 12 min |
| NWS Nashville, TN: severe thunderstorm warnings | 400 | 192 | 52% | 508 | 69% | 21 min |
| NWS Nashville, TN: flash flood warnings | 46 | 10 | 78% | 23 | 65% | 151 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 8, 3:46 AM CST | Winter Storm Watch | OHX | 30 hr |
| Jan 8, 9:08 PM CST | Winter Storm Warning | OHX | 43 hr |
| Jan 10, 4:31 AM CST | Winter Weather Advisory | OHX | 35 hr |
| Jan 19, 12:06 PM CST | Winter Weather Advisory | OHX | 34 hr |
| Jan 25, 4:13 AM CST | Winter Storm Watch | OHX | 9 hr |
| Jan 25, 1:14 PM CST | Winter Storm Warning | OHX | 22 hr |
| Jan 26, 3:00 AM CST | Winter Weather Advisory | OHX | 6 hr |
| Jan 31, 4:21 AM CST | Wind Advisory | OHX | 50 hr |
| Feb 1, 2:02 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 3, 8:14 PM CST | Winter Weather Advisory | OHX | 16 hr |
| Feb 8, 3:16 PM CST | Winter Weather Advisory | OHX | 32 hr |
| Feb 24, 2:12 PM CST | Mesoscale Discussion | SPC | 93 min |
| Feb 24, 2:34 PM CST | Tornado Watch | SPC | 7 hr |
| Feb 24, 5:26 PM CST | Mesoscale Discussion | SPC | 94 min |
| Feb 24, 7:41 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 24, 8:11 PM CST | Mesoscale Discussion | SPC | 64 min |
| Feb 24, 9:00 PM CST | Severe Thunderstorm Warning | OHX | 45 min |
| Feb 24, 9:58 PM CST | Severe Thunderstorm Warning | OHX | 62 min |
| Feb 24, 10:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Feb 28, 5:47 AM CST | Mesoscale Discussion | SPC | 28 min |
| Feb 28, 5:59 AM CST | Tornado Watch | SPC | 7 hr |
| Feb 28, 6:58 AM CST | Tornado Warning | OHX | 32 min |
| Feb 28, 7:33 AM CST | Flash Flood Warning | OHX | 6 hr |
| Feb 28, 8:12 AM CST | Flash Flood Watch | OHX | 7 hr |
| Feb 28, 9:01 AM CST | Flash Flood Warning | OHX | 6 hr |
| Feb 28, 11:25 AM CST | Mesoscale Discussion | SPC | 95 min |
| Mar 4, 4:00 AM CST | Flood Watch | OHX | 36 hr |
| Mar 8, 10:30 AM CST | Flood Watch | OHX | 19 hr |
| Mar 23, 1:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Mar 23, 4:06 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 26, 2:47 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Mar 26, 3:14 PM CDT | Severe Thunderstorm Warning | OHX | 31 min |
| Mar 26, 5:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 2, 3:25 PM CDT | Wind Advisory | OHX | 48 hr |
| Apr 4, 10:25 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 11:34 AM CDT | Tornado Watch | SPC | 5 hr |
| Apr 4, 1:17 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Apr 4, 1:22 PM CDT | Severe Thunderstorm Warning | OHX | 23 min |
| Apr 4, 1:35 PM CDT | Severe Thunderstorm Warning | OHX | 40 min |
| Apr 4, 2:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 11, 4:07 AM CDT | Wind Advisory | OHX | 11 hr |
| Apr 11, 8:58 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 11, 10:31 AM CDT | Tornado Watch | SPC | 6 hr |
| Apr 11, 10:41 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 11, 12:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Apr 11, 3:56 PM CDT | Mesoscale Discussion | SPC | 34 min |
| Apr 11, 4:02 PM CDT | Severe Thunderstorm Warning | OHX | 43 min |
| Apr 11, 4:23 PM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Apr 11, 5:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 14, 4:03 PM CDT | Wind Advisory | OHX | 35 hr |
| Apr 15, 4:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 15, 2:09 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 15, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 8:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 19, 3:59 AM CDT | Wind Advisory | OHX | 15 hr |
| Apr 19, 9:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Apr 19, 10:14 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 11:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 20, 12:03 AM CDT | Severe Thunderstorm Warning | OHX | 42 min |
| Apr 20, 12:49 AM CDT | Severe Thunderstorm Warning | OHX | 41 min |
| Apr 20, 1:30 AM CDT | Severe Thunderstorm Warning | OHX | 45 min |
| Apr 20, 3:56 AM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Apr 20, 3:57 AM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Apr 20, 4:05 AM CDT | Severe Thunderstorm Warning | OHX | 25 min |
| Apr 20, 4:12 AM CDT | Areal Flood Advisory | OHX | 2 hr |
| Apr 20, 5:58 AM CDT | Severe Thunderstorm Warning | OHX | 22 min |
| Apr 20, 6:09 PM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Apr 25, 4:43 AM CDT | Flash Flood Watch | OHX | 64 hr |
| Apr 25, 1:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 25, 2:29 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 25, 11:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 25, 11:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 26, 12:38 AM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Apr 26, 1:14 AM CDT | Severe Thunderstorm Warning | OHX | 31 min |
| Apr 26, 1:39 AM CDT | Severe Thunderstorm Warning | OHX | 36 min |
| Apr 26, 6:24 PM CDT | Wind Advisory | OHX | 22 hr |
| Apr 26, 7:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 9:58 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 26, 10:16 PM CDT | Tornado Warning | OHX | 59 min |
| Apr 27, 4:52 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Apr 27, 5:02 AM CDT | Flash Flood Warning | OHX | 16 hr |
| Apr 27, 5:06 AM CDT | Flash Flood Warning | OHX | 16 hr |
| Apr 27, 12:03 PM CDT | Flash Flood Warning | OHX | 9 hr |
| Apr 27, 12:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Apr 27, 12:42 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 27, 3:36 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 27, 3:42 PM CDT | Tornado Warning | OHX | 33 min |
| Apr 27, 5:41 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| May 1, 3:50 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 2, 4:34 PM CDT | Severe Thunderstorm Warning | OHX | 26 min |
| May 2, 4:42 PM CDT | Tornado Warning | OHX | 33 min |
| May 2, 4:58 PM CDT | Severe Thunderstorm Warning | OHX | 32 min |
| May 2, 5:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 2, 5:30 PM CDT | Tornado Warning | OHX | 30 min |
| May 4, 1:43 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| May 12, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 13, 5:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 13, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 13, 7:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 22, 1:18 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 4:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 23, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 23, 7:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 25, 3:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 25, 8:33 PM CDT | Tornado Watch | SPC | 7 hr |
| May 25, 9:57 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| May 25, 10:16 PM CDT | Severe Thunderstorm Warning | OHX | 29 min |
| May 25, 10:30 PM CDT | Severe Thunderstorm Warning | OHX | 30 min |
| May 25, 10:46 PM CDT | Severe Thunderstorm Warning | OHX | 46 min |
| May 25, 11:05 PM CDT | Severe Thunderstorm Warning | OHX | 25 min |
| May 25, 11:14 PM CDT | Severe Thunderstorm Warning | OHX | 31 min |
| Jun 5, 12:02 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 5, 2:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 15, 10:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 11:52 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 15, 2:32 PM CDT | Severe Thunderstorm Warning | OHX | 28 min |
| Jun 15, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 15, 3:48 PM CDT | Severe Thunderstorm Warning | OHX | 27 min |
| Jun 15, 4:48 PM CDT | Severe Thunderstorm Warning | OHX | 13 min |
| Jun 15, 5:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 16, 8:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 18, 8:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 18, 9:39 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 18, 12:22 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| Jun 18, 12:54 PM CDT | Severe Thunderstorm Warning | OHX | 41 min |
| Jun 19, 7:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 22, 11:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 3:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 3:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 25, 2:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 26, 12:05 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 2:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 5:29 PM CDT | Mesoscale Discussion | SPC | 46 min |
| Jun 27, 11:30 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 28, 4:08 AM CDT | Mesoscale Discussion | SPC | 82 min |
| Jun 28, 4:17 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 28, 5:35 AM CDT | Severe Thunderstorm Warning | OHX | 55 min |
| Jun 28, 5:49 AM CDT | Severe Thunderstorm Warning | OHX | 56 min |
| Jun 28, 6:08 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 28, 8:56 AM CDT | Special Weather Statement | OHX | 34 min |
| Jun 28, 9:21 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Jun 28, 9:53 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Jun 28, 10:58 AM CDT | Severe Thunderstorm Warning | OHX | 47 min |
| Jun 28, 10:28 PM CDT | Dense Fog Advisory | OHX | 10 hr |
| Jul 7, 11:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 7, 12:51 PM CDT | Special Weather Statement | OHX | 54 min |
| Jul 10, 3:02 PM CDT | Heat Advisory | OHX | 52 hr |
| Jul 12, 7:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 14, 1:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 19, 3:11 PM CDT | Heat Advisory | OHX | 70 hr |
| Aug 2, 3:17 PM CDT | Heat Advisory | OHX | 44 hr |
| Aug 3, 12:35 PM CDT | Excessive Heat Warning | OHX | 6 hr |
| Aug 3, 10:38 PM CDT | Severe Thunderstorm Warning | OHX | 37 min |
| Aug 18, 6:28 PM CDT | Severe Thunderstorm Warning | OHX | 62 min |
| Sep 11, 5:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Oct 1, 2:13 PM CDT | Frost Advisory | OHX | 18 hr |
| Oct 2, 5:18 PM CDT | Frost Advisory | OHX | 15 hr |
| Oct 12, 5:04 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Oct 18, 2:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Oct 20, 3:46 AM CDT | Freeze Warning | OHX | 24 hr |
| Oct 21, 3:39 AM CDT | Frost Advisory | OHX | 4 hr |
| Oct 21, 3:39 AM CDT | Freeze Warning | OHX | 28 hr |
| Oct 28, 3:16 PM CDT | Freeze Warning | OHX | 18 hr |
| Oct 28, 3:16 PM CDT | Freeze Warning | OHX | 42 hr |
| Oct 29, 1:13 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Nov 5, 2:44 AM CDT | Dense Fog Advisory | OHX | 7 hr |
| Nov 12, 3:28 PM CST | Wind Advisory | OHX | 26 hr |
| Nov 21, 3:40 AM CST | Mesoscale Discussion | SPC | 95 min |
| Nov 21, 4:06 AM CST | Special Weather Statement | OHX | 54 min |
| Nov 28, 4:08 AM CST | Winter Weather Advisory | OHX | 21 hr |
| Nov 29, 1:37 AM CST | Winter Weather Advisory | OHX | 8 hr |
| Dec 2, 3:06 AM CST | Freezing Fog Advisory | OHX | 6 hr |
| Dec 7, 2:52 AM CST | Winter Weather Advisory | OHX | 13 hr |
| Dec 13, 11:39 PM CST | Dense Fog Advisory | OHX | 9 hr |
| Dec 21, 1:35 AM CST | Mesoscale Discussion | SPC | 85 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 | 39 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 11 |
| Tornado Watch | 12 |
| Mesoscale Discussion | 54 |
| Special Weather Statement | 3 |
| Flooding | |
| Flash Flood Warning | 8 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 8 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.