Alert archive / Tennessee / Franklin County
Weather alerts in Franklin County, Tennessee, 2020
149 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Franklin County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 149
- Warnings
- 33
- Watches
- 23
- Advisories
- 25
- Busiest month
- February22 alerts
- Busiest day
- February 5, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 2 tornado warnings covering Franklin County in 2020 had a tornado report inside them; 1 of 2 tornado reports fell inside a warning, on average 31 minutes after it went out.
Franklin County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 2 | 0% | 2 | 50% | 31 min |
| Severe thunderstorm warnings | 18 | 9 | 50% | 18 | 28% | 15 min |
| Flash flood warnings | 0 | 8 | 0% |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Huntsville, AL: tornado warnings | 36 | 9 | 75% | 19 | 58% | 17 min |
| NWS Huntsville, AL: severe thunderstorm warnings | 113 | 54 | 52% | 375 | 50% | 21 min |
| NWS Huntsville, AL: flash flood warnings | 25 | 13 | 48% | 66 | 53% | 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 1, 3:00 AM CST | Flood Watch | HUN | 63 hr |
| Jan 3, 3:11 AM CST | Areal Flood Warning | HUN | 15 hr |
| Jan 3, 7:35 AM CST | Dense Fog Advisory | HUN | 2 hr |
| Jan 9, 1:58 PM CST | Wind Advisory | HUN | 50 hr |
| Jan 11, 9:28 AM CST | Mesoscale Discussion | SPC | 92 min |
| Jan 11, 12:20 PM CST | Mesoscale Discussion | SPC | 85 min |
| Jan 11, 12:42 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 11, 1:54 PM CST | Severe Thunderstorm Warning | HUN | 21 min |
| Jan 14, 4:30 AM CST | Flash Flood Watch | HUN | 7 hr |
| Jan 24, 5:24 AM CST | Dense Fog Advisory | HUN | 4 hr |
| Feb 5, 8:45 AM CST | Flash Flood Watch | HUN | 26 hr |
| Feb 5, 10:39 AM CST | Areal Flood Warning | HUN | 12 hr |
| Feb 5, 12:43 PM CST | Special Weather Statement | HUN | 47 min |
| Feb 5, 1:01 PM CST | Special Weather Statement | HUN | 29 min |
| Feb 5, 1:27 PM CST | Special Weather Statement | HUN | 33 min |
| Feb 5, 3:08 PM CST | River Flood Warning | HUN | 46 hr |
| Feb 5, 4:25 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 5, 6:29 PM CST | Severe Thunderstorm Warning | HUN | 46 min |
| Feb 5, 6:33 PM CST | Mesoscale Discussion | SPC | 117 min |
| Feb 5, 7:08 PM CST | Areal Flood Warning | HUN | 9 hr |
| Feb 5, 7:13 PM CST | Special Weather Statement | HUN | 47 min |
| Feb 5, 7:56 PM CST | Special Weather Statement | HUN | 49 min |
| Feb 5, 11:52 PM CST | Areal Flood Warning | HUN | 33 hr |
| Feb 7, 8:57 PM CST | Winter Weather Advisory | HUN | 14 hr |
| Feb 9, 3:21 AM CST | Flood Watch | HUN | 24 hr |
| Feb 10, 3:34 AM CST | Flash Flood Watch | HUN | 30 hr |
| Feb 10, 9:22 AM CST | River Flood Warning | HUN | 24 hr |
| Feb 11, 1:56 PM CST | Flash Flood Watch | HUN | 40 hr |
| Feb 12, 4:34 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 12, 6:00 PM CST | Mesoscale Discussion | SPC | 90 min |
| Feb 12, 6:05 PM CST | Severe Thunderstorm Warning | HUN | 25 min |
| Feb 12, 6:30 PM CST | Severe Thunderstorm Warning | HUN | 45 min |
| Mar 11, 7:25 AM CDT | Dense Fog Advisory | HUN | 3 hr |
| Mar 18, 2:59 AM CDT | Dense Fog Advisory | HUN | 6 hr |
| Mar 23, 6:22 AM CDT | Areal Flood Warning | HUN | 3 hr |
| Mar 23, 1:02 PM CDT | River Flood Warning | HUN | 20 hr |
| Mar 24, 4:09 AM CDT | Flash Flood Watch | HUN | 19 hr |
| Mar 24, 10:04 AM CDT | River Flood Warning | HUN | 10 hr |
| Mar 24, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 24, 6:45 PM CDT | Tornado Warning | HUN | 45 min |
| Mar 24, 7:05 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Mar 24, 7:08 PM CDT | Tornado Warning | HUN | 17 min |
| Mar 24, 7:09 PM CDT | Severe Thunderstorm Warning | HUN | 36 min |
| Mar 28, 9:58 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 29, 1:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 29, 2:42 AM CDT | Severe Thunderstorm Warning | HUN | 33 min |
| Apr 8, 9:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 8, 10:16 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 12:01 AM CDT | Special Weather Statement | HUN | 59 min |
| Apr 10, 10:26 AM CDT | Frost Advisory | HUN | 22 hr |
| Apr 11, 2:32 PM CDT | Wind Advisory | HUN | 33 hr |
| Apr 12, 3:36 AM CDT | Flash Flood Watch | HUN | 24 hr |
| Apr 12, 1:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 12, 3:20 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 3:34 AM CDT | Wind Advisory | HUN | 6 hr |
| Apr 14, 2:13 AM CDT | Freeze Watch | HUN | 12 hr |
| Apr 14, 2:27 PM CDT | Freeze Warning | HUN | 18 hr |
| Apr 15, 6:34 PM CDT | Frost Advisory | HUN | 13 hr |
| Apr 22, 9:50 PM CDT | Wind Advisory | HUN | 11 hr |
| Apr 23, 7:56 PM CDT | Special Weather Statement | HUN | 34 min |
| Apr 25, 2:12 PM CDT | Special Weather Statement | HUN | 48 min |
| Apr 25, 2:32 PM CDT | Special Weather Statement | HUN | 43 min |
| Apr 25, 4:33 PM CDT | Wind Advisory | HUN | 5 hr |
| Apr 26, 4:27 AM CDT | Wind Advisory | HUN | 14 hr |
| Apr 29, 12:10 PM CDT | Special Weather Statement | HUN | 35 min |
| Apr 29, 12:47 PM CDT | Special Weather Statement | HUN | 43 min |
| May 3, 3:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 3, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 3, 4:30 PM CDT | Severe Thunderstorm Warning | HUN | 45 min |
| May 3, 5:13 PM CDT | Severe Thunderstorm Warning | HUN | 32 min |
| May 3, 5:41 PM CDT | Severe Thunderstorm Warning | HUN | 49 min |
| May 3, 6:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 4, 6:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| May 4, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 8:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 4, 9:22 PM CDT | Severe Thunderstorm Warning | HUN | 38 min |
| May 4, 9:57 PM CDT | Severe Thunderstorm Warning | HUN | 33 min |
| May 8, 3:37 AM CDT | Freeze Watch | HUN | 10 hr |
| May 8, 9:41 AM CDT | Wind Advisory | HUN | 7 hr |
| May 8, 1:57 PM CDT | Frost Advisory | HUN | 18 hr |
| May 9, 2:51 AM CDT | Frost Advisory | HUN | 29 hr |
| May 22, 8:03 AM CDT | Special Weather Statement | HUN | 27 min |
| May 22, 9:00 PM CDT | Severe Thunderstorm Warning | HUN | 34 min |
| May 22, 9:42 PM CDT | Special Weather Statement | HUN | 18 min |
| May 23, 10:02 PM CDT | Special Weather Statement | HUN | 28 min |
| Jun 3, 3:02 PM CDT | Special Weather Statement | HUN | 28 min |
| Jun 3, 3:54 PM CDT | Severe Thunderstorm Warning | HUN | 36 min |
| Jun 8, 10:08 PM CDT | Special Weather Statement | HUN | 37 min |
| Jun 14, 12:54 PM CDT | Special Weather Statement | HUN | 51 min |
| Jun 14, 1:18 PM CDT | Special Weather Statement | HUN | 42 min |
| Jun 21, 4:59 PM CDT | Special Weather Statement | HUN | 46 min |
| Jun 21, 5:10 PM CDT | Severe Thunderstorm Warning | HUN | 16 min |
| Jun 22, 6:05 PM CDT | Special Weather Statement | HUN | 25 min |
| Jun 22, 6:37 PM CDT | Special Weather Statement | HUN | 23 min |
| Jun 29, 1:42 PM CDT | Special Weather Statement | HUN | 48 min |
| Jun 30, 11:02 AM CDT | Special Weather Statement | HUN | 28 min |
| Jun 30, 11:29 AM CDT | Special Weather Statement | HUN | 46 min |
| Jul 4, 3:49 PM CDT | Special Weather Statement | HUN | 41 min |
| Jul 8, 2:17 PM CDT | Special Weather Statement | HUN | 43 min |
| Jul 20, 11:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 1:23 PM CDT | Special Weather Statement | HUN | 52 min |
| Jul 25, 7:29 PM CDT | Severe Thunderstorm Warning | HUN | 31 min |
| Jul 25, 8:00 PM CDT | Special Weather Statement | HUN | 30 min |
| Jul 25, 8:28 PM CDT | Special Weather Statement | HUN | 32 min |
| Jul 27, 3:32 PM CDT | Special Weather Statement | HUN | 43 min |
| Jul 27, 4:29 PM CDT | Areal Flood Warning | HUN | 2 hr |
| Jul 28, 4:10 PM CDT | Special Weather Statement | HUN | 50 min |
| Jul 31, 12:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 31, 1:42 PM CDT | Special Weather Statement | HUN | 48 min |
| Aug 10, 1:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 10, 6:48 PM CDT | Special Weather Statement | HUN | 42 min |
| Aug 11, 1:53 AM CDT | Special Weather Statement | HUN | 37 min |
| Aug 11, 2:27 AM CDT | Special Weather Statement | HUN | 33 min |
| Aug 13, 9:46 PM CDT | Severe Thunderstorm Warning | HUN | 29 min |
| Aug 16, 3:33 PM CDT | Special Weather Statement | HUN | 42 min |
| Aug 19, 4:00 PM CDT | Special Weather Statement | HUN | 45 min |
| Aug 19, 4:07 PM CDT | Special Weather Statement | HUN | 38 min |
| Aug 27, 4:58 PM CDT | Special Weather Statement | HUN | 47 min |
| Aug 27, 5:04 PM CDT | Severe Thunderstorm Warning | HUN | 26 min |
| Aug 27, 5:32 PM CDT | Special Weather Statement | HUN | 28 min |
| Aug 27, 5:52 PM CDT | Special Weather Statement | HUN | 38 min |
| Aug 28, 3:46 PM CDT | Tornado Watch | SPC | 4 hr |
| Aug 28, 5:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 30, 3:15 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 30, 5:59 PM CDT | Special Weather Statement | HUN | 31 min |
| Aug 30, 6:35 PM CDT | Special Weather Statement | HUN | 40 min |
| Aug 31, 3:16 PM CDT | Special Weather Statement | HUN | 44 min |
| Aug 31, 3:38 PM CDT | Special Weather Statement | HUN | 52 min |
| Aug 31, 3:55 PM CDT | Special Weather Statement | HUN | 35 min |
| Aug 31, 4:01 PM CDT | Severe Thunderstorm Warning | HUN | 29 min |
| Sep 1, 4:14 PM CDT | Special Weather Statement | HUN | 46 min |
| Sep 1, 4:56 PM CDT | Special Weather Statement | HUN | 34 min |
| Sep 23, 2:39 PM CDT | Flash Flood Watch | HUN | 31 hr |
| Sep 29, 1:21 AM CDT | Dense Fog Advisory | HUN | 7 hr |
| Oct 16, 9:43 AM CDT | Frost Advisory | HUN | 22 hr |
| Oct 28, 3:40 AM CDT | Flash Flood Watch | HUN | 26 hr |
| Oct 29, 3:07 AM CDT | Special Weather Statement | HUN | 38 min |
| Oct 31, 3:13 AM CDT | Freeze Watch | HUN | 23 hr |
| Nov 1, 1:17 AM CST | Freeze Warning | HUN | 31 hr |
| Nov 2, 2:19 PM CST | Freeze Warning | HUN | 18 hr |
| Nov 12, 10:38 PM CST | Dense Fog Advisory | HUN | 9 hr |
| Nov 15, 7:29 AM CST | Special Weather Statement | HUN | 61 min |
| Nov 15, 8:25 AM CST | Special Weather Statement | HUN | 65 min |
| Nov 24, 8:50 PM CST | Wind Advisory | HUN | 18 hr |
| Dec 5, 2:51 AM CST | Freezing Fog Advisory | HUN | 6 hr |
| Dec 6, 1:50 AM CST | Freezing Fog Advisory | HUN | 7 hr |
| Dec 12, 8:32 PM CST | Dense Fog Advisory | HUN | 12 hr |
| Dec 20, 7:28 PM CST | Dense Fog Advisory | HUN | 9 hr |
| Dec 23, 2:26 PM CST | Wind Advisory | HUN | 22 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 | 18 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 51 |
| Flooding | |
| Areal Flood Warning | 6 |
| River Flood Warning | 4 |
| Flash Flood Watch | 8 |
| Flood Watch | 2 |
| Winter | |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
| Freezing Fog Advisory | 2 |
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.