Alert archive / Tennessee / Montgomery County
Weather alerts in Montgomery County, Tennessee, 2019
109 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 109
- Warnings
- 22
- Watches
- 14
- Advisories
- 42
- Busiest month
- February25 alerts
- Busiest day
- February 7, 20197 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 Montgomery County in 2019 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.
Montgomery County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| Severe thunderstorm warnings | 11 | 7 | 36% | 18 | 56% | 24 min |
| Flash flood warnings | 3 | 2 | 33% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 17 | 0 | 100% | 7 | 0% | |
| NWS Nashville, TN: severe thunderstorm warnings | 137 | 83 | 39% | 311 | 71% | 20 min |
| NWS Nashville, TN: flash flood warnings | 63 | 45 | 29% | 178 | 79% | 92 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, 10:31 AM CST | River Flood Advisory | OHX | 22 hr |
| Jan 19, 6:03 AM CST | Winter Weather Advisory | OHX | 21 hr |
| Jan 21, 2:47 PM CST | Wind Advisory | OHX | 48 hr |
| Feb 6, 6:53 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 6, 9:31 PM CST | Areal Flood Advisory | OHX | 12 hr |
| Feb 7, 9:49 AM CST | Wind Advisory | OHX | 9 hr |
| Feb 7, 9:59 AM CST | Flash Flood Watch | OHX | 11 hr |
| Feb 7, 10:32 AM CST | River Flood Warning | OHX | 7 hr |
| Feb 7, 1:04 PM CST | River Flood Advisory | OHX | 5 hr |
| Feb 7, 5:57 PM CST | River Flood Advisory | OHX | 60 hr |
| Feb 9, 2:32 PM CST | Flood Watch | OHX | 69 hr |
| Feb 12, 12:53 AM CST | Areal Flood Advisory | OHX | 11 hr |
| Feb 12, 10:35 AM CST | River Flood Advisory | OHX | 32 hr |
| Feb 12, 10:52 AM CST | River Flood Advisory | OHX | 34 hr |
| Feb 15, 1:35 PM CST | Winter Weather Advisory | OHX | 13 hr |
| Feb 18, 1:51 PM CST | Flash Flood Watch | OHX | 52 hr |
| Feb 19, 11:39 AM CST | River Flood Advisory | OHX | 4 days |
| Feb 20, 3:36 AM CST | Areal Flood Advisory | OHX | 3 hr |
| Feb 20, 5:25 PM CST | River Flood Advisory | OHX | 24 hr |
| Feb 21, 1:48 AM CST | Flash Flood Watch | OHX | 70 hr |
| Feb 21, 5:29 PM CST | River Flood Warning | OHX | 4 days |
| Feb 23, 10:26 AM CST | River Flood Warning | OHX | 5 days |
| Feb 23, 2:56 PM CST | Flash Flood Warning | OHX | 4 hr |
| Feb 23, 3:01 PM CST | Tornado Watch | SPC | 6 hr |
| Feb 23, 3:25 PM CST | Special Weather Statement | OHX | 35 min |
| Feb 23, 6:36 PM CST | Flash Flood Warning | OHX | 6 hr |
| Feb 25, 11:11 AM CST | River Flood Advisory | OHX | 10 hr |
| Feb 28, 4:51 PM CST | River Flood Advisory | OHX | 69 hr |
| Mar 3, 1:18 PM CST | River Flood Warning | OHX | 71 hr |
| Mar 6, 8:59 AM CST | River Flood Advisory | OHX | 10 days |
| Mar 8, 2:02 PM CST | Wind Advisory | OHX | 31 hr |
| Mar 9, 1:27 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 9, 2:16 PM CST | Tornado Watch | SPC | 7 hr |
| Mar 13, 3:17 PM CDT | Wind Advisory | OHX | 28 hr |
| Mar 14, 12:11 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 25, 1:02 AM CDT | Special Weather Statement | OHX | 58 min |
| Mar 30, 3:54 AM CDT | Freeze Watch | OHX | 23 hr |
| Mar 30, 1:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 30, 3:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Mar 31, 2:36 AM CDT | Freeze Warning | OHX | 30 hr |
| Apr 9, 5:38 AM CDT | Dense Fog Advisory | OHX | 4 hr |
| Apr 10, 2:32 PM CDT | Wind Advisory | OHX | 30 hr |
| Jun 19, 12:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 19, 2:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 4:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 19, 5:28 PM CDT | Special Weather Statement | OHX | 47 min |
| Jun 19, 5:36 PM CDT | Special Weather Statement | OHX | 39 min |
| Jun 19, 5:40 PM CDT | Severe Thunderstorm Warning | OHX | 50 min |
| Jun 19, 6:14 PM CDT | Tornado Warning | OHX | 12 min |
| Jun 20, 7:21 AM CDT | Special Weather Statement | OHX | 39 min |
| Jun 21, 2:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 21, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 5:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 21, 5:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 6:32 PM CDT | Severe Thunderstorm Warning | OHX | 43 min |
| Jun 21, 6:56 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Jun 22, 7:57 AM CDT | Special Weather Statement | OHX | 48 min |
| Jun 22, 3:22 PM CDT | Special Weather Statement | OHX | 38 min |
| Jun 22, 3:41 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Jun 23, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 23, 5:36 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 23, 7:00 PM CDT | Special Weather Statement | OHX | 45 min |
| Jun 28, 9:11 PM CDT | Special Weather Statement | OHX | 49 min |
| Jul 3, 1:27 PM CDT | Special Weather Statement | OHX | 48 min |
| Jul 4, 12:33 PM CDT | Special Weather Statement | OHX | 27 min |
| Jul 13, 7:22 PM CDT | Areal Flood Advisory | OHX | 113 min |
| Jul 13, 8:56 PM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 16, 1:34 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 2:33 PM CDT | Severe Thunderstorm Warning | OHX | 27 min |
| Jul 17, 9:57 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Jul 18, 4:08 AM CDT | Heat Advisory | OHX | 10 hr |
| Jul 18, 2:29 PM CDT | Heat Advisory | OHX | 29 hr |
| Jul 22, 12:57 PM CDT | Special Weather Statement | OHX | 33 min |
| Jul 22, 1:22 PM CDT | Areal Flood Advisory | OHX | 3 hr |
| Jul 22, 1:29 PM CDT | Special Weather Statement | OHX | 31 min |
| Jul 22, 1:52 PM CDT | Severe Thunderstorm Warning | OHX | 23 min |
| Aug 3, 3:51 PM CDT | Special Weather Statement | OHX | 39 min |
| Aug 3, 4:10 PM CDT | Areal Flood Advisory | OHX | 2 hr |
| Aug 5, 12:31 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Aug 6, 3:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 6, 5:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 6, 7:14 PM CDT | Special Weather Statement | OHX | 46 min |
| Aug 6, 7:26 PM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Aug 6, 7:54 PM CDT | Special Weather Statement | OHX | 66 min |
| Aug 8, 3:33 AM CDT | Dense Fog Advisory | OHX | 5 hr |
| Aug 12, 2:05 PM CDT | Heat Advisory | OHX | 29 hr |
| Aug 20, 4:37 PM CDT | Special Weather Statement | OHX | 23 min |
| Aug 20, 4:45 PM CDT | Severe Thunderstorm Warning | OHX | 30 min |
| Aug 20, 5:04 PM CDT | Severe Thunderstorm Warning | OHX | 26 min |
| Aug 20, 5:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 23, 1:13 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Sep 27, 12:49 AM CDT | Dense Fog Advisory | OHX | 8 hr |
| Oct 21, 6:59 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 26, 3:18 AM CDT | Wind Advisory | OHX | 15 hr |
| Oct 26, 2:00 PM CDT | Special Weather Statement | OHX | 45 min |
| Oct 26, 2:30 PM CDT | Severe Thunderstorm Warning | OHX | 45 min |
| Oct 28, 2:04 AM CDT | Dense Fog Advisory | OHX | 7 hr |
| Oct 30, 2:02 PM CDT | Freeze Watch | OHX | 13 hr |
| Oct 31, 2:37 AM CDT | Freeze Warning | OHX | 30 hr |
| Nov 1, 6:50 AM CDT | Freezing Fog Advisory | OHX | 2 hr |
| Nov 26, 12:26 PM CST | Wind Advisory | OHX | 24 hr |
| Dec 16, 1:04 AM CST | Areal Flood Advisory | OHX | 6 hr |
| Dec 16, 7:39 AM CST | Flash Flood Watch | OHX | 12 hr |
| Dec 16, 2:23 PM CST | Areal Flood Advisory | OHX | 3 hr |
| Dec 16, 10:49 PM CST | River Flood Advisory | OHX | 6 hr |
| Dec 17, 4:39 AM CST | River Flood Warning | OHX | 18 hr |
| Dec 17, 11:02 PM CST | River Flood Advisory | OHX | 4 hr |
| Dec 28, 12:24 AM CST | Dense Fog Advisory | OHX | 4 hr |
| Dec 30, 9:56 AM CST | River Flood Advisory | OHX | 11 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 | 11 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 18 |
| Flooding | |
| Flash Flood Warning | 3 |
| River Flood Warning | 5 |
| Flash Flood Watch | 4 |
| Flood Watch | 1 |
| Areal Flood Advisory | 9 |
| River Flood Advisory | 13 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.