Alert archive / Tennessee / Marion County
Weather alerts in Marion County, Tennessee, 2022
116 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Marion County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 116
- Warnings
- 29
- Watches
- 12
- Advisories
- 39
- Busiest month
- June17 alerts
- Busiest day
- January 2, 20226 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Marion County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 8 | 33% | 5 | 80% | 21 min |
| Flash flood warnings | 3 | 1 | 67% | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 4 | 0 | 100% | 0 | ||
| NWS Morristown, TN: severe thunderstorm warnings | 185 | 150 | 19% | 242 | 85% | 18 min |
| NWS Morristown, TN: flash flood warnings | 51 | 27 | 47% | 66 | 82% | 91 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, 2:31 AM CST | Wind Advisory | MRX | 20 hr |
| Jan 1, 12:38 PM CST | Mesoscale Discussion | SPC | 97 min |
| Jan 1, 12:56 PM CST | Tornado Watch | SPC | 6 hr |
| Jan 1, 3:27 PM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 1, 5:53 PM CST | Mesoscale Discussion | SPC | 67 min |
| Jan 1, 6:53 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 1, 7:07 PM CST | Special Weather Statement | MRX | 53 min |
| Jan 1, 8:55 PM CST | Severe Thunderstorm Warning | MRX | 50 min |
| Jan 1, 11:49 PM CST | Areal Flood Advisory | MRX | 4 hr |
| Jan 2, 3:03 AM CST | Winter Storm Warning | MRX | 30 hr |
| Jan 2, 3:03 AM CST | Winter Weather Advisory | MRX | 24 hr |
| Jan 2, 6:19 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 5, 1:59 PM CST | Winter Weather Advisory | MRX | 25 hr |
| Jan 13, 2:06 PM CST | Winter Storm Watch | MRX | 48 hr |
| Jan 15, 3:29 AM CST | Winter Storm Warning | MRX | 63 hr |
| Feb 2, 2:31 AM CST | Flood Watch | MRX | 42 hr |
| Feb 3, 8:22 AM CST | River Flood Warning | MRX | 36 hr |
| Feb 11, 1:20 PM CST | Red Flag Warning | MRX | 5 hr |
| Feb 16, 2:01 PM CST | Wind Advisory | MRX | 34 hr |
| Feb 17, 6:06 PM CST | Special Weather Statement | MRX | 54 min |
| Feb 21, 1:33 PM CST | Flood Watch | MRX | 42 hr |
| Feb 22, 8:30 PM CST | Special Weather Statement | MRX | 45 min |
| Feb 22, 8:46 PM CST | Areal Flood Advisory | MRX | 9 hr |
| Feb 22, 9:15 PM CST | Special Weather Statement | MRX | 45 min |
| Feb 22, 11:39 PM CST | Areal Flood Advisory | MRX | 8 hr |
| Feb 23, 2:11 AM CST | River Flood Warning | MRX | 27 hr |
| Feb 24, 5:01 AM CST | River Flood Warning | MRX | 63 hr |
| Mar 6, 2:02 PM CST | Wind Advisory | MRX | 28 hr |
| Mar 10, 2:13 PM CST | Winter Storm Watch | MRX | 13 hr |
| Mar 11, 2:54 AM CST | Winter Storm Warning | MRX | 36 hr |
| Mar 11, 8:24 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 22, 4:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Mar 23, 12:16 PM CDT | Wind Advisory | MRX | 7 hr |
| Mar 26, 2:15 PM CDT | Freeze Warning | MRX | 18 hr |
| Mar 27, 7:16 PM CDT | Frost Advisory | MRX | 7 hr |
| Mar 29, 9:30 AM CDT | Wind Advisory | MRX | 44 hr |
| Mar 30, 9:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Mar 30, 11:01 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 31, 12:30 AM CDT | Special Weather Statement | MRX | 45 min |
| Mar 31, 1:10 AM CDT | Severe Thunderstorm Warning | MRX | 33 min |
| Apr 6, 12:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 3:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 6, 3:59 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 6, 4:23 PM CDT | Special Weather Statement | MRX | 52 min |
| Apr 6, 4:35 PM CDT | Severe Thunderstorm Warning | MRX | 40 min |
| Apr 6, 5:00 PM CDT | Severe Thunderstorm Warning | MRX | 45 min |
| Apr 8, 2:23 PM CDT | Frost Advisory | MRX | 12 hr |
| Apr 9, 2:02 PM CDT | Frost Advisory | MRX | 18 hr |
| Apr 13, 9:06 PM CDT | Severe Thunderstorm Warning | MRX | 54 min |
| Apr 18, 10:44 PM CDT | Frost Advisory | MRX | 10 hr |
| May 3, 6:58 PM CDT | Special Weather Statement | MRX | 47 min |
| May 3, 7:41 PM CDT | Special Weather Statement | MRX | 49 min |
| May 6, 12:36 PM CDT | Special Weather Statement | MRX | 39 min |
| May 6, 12:52 PM CDT | Severe Thunderstorm Warning | MRX | 38 min |
| May 6, 1:33 PM CDT | Special Weather Statement | MRX | 42 min |
| May 14, 4:04 PM CDT | Special Weather Statement | MRX | 41 min |
| May 21, 10:47 PM CDT | Special Weather Statement | MRX | 43 min |
| Jun 2, 4:47 PM CDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 2, 4:57 PM CDT | Special Weather Statement | MRX | 48 min |
| Jun 6, 2:59 PM CDT | Special Weather Statement | MRX | 46 min |
| Jun 6, 3:08 PM CDT | Severe Thunderstorm Warning | MRX | 22 min |
| Jun 6, 3:30 PM CDT | Severe Thunderstorm Warning | MRX | 19 min |
| Jun 6, 3:56 PM CDT | Special Weather Statement | MRX | 49 min |
| Jun 6, 4:24 PM CDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jun 7, 10:10 AM CDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 7, 12:25 PM CDT | Areal Flood Advisory | MRX | 110 min |
| Jun 7, 3:34 PM CDT | Special Weather Statement | MRX | 41 min |
| Jun 13, 2:28 PM CDT | Heat Advisory | MRX | 29 hr |
| Jun 14, 2:26 PM CDT | Heat Advisory | MRX | 29 hr |
| Jun 15, 2:07 PM CDT | Heat Advisory | MRX | 29 hr |
| Jun 17, 8:48 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 17, 9:01 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 11:06 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 17, 12:13 PM CDT | Special Weather Statement | MRX | 47 min |
| Jul 6, 2:36 AM CDT | Heat Advisory | MRX | 16 hr |
| Jul 7, 2:45 AM CDT | Heat Advisory | MRX | 15 hr |
| Jul 7, 12:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 7, 1:04 PM CDT | Special Weather Statement | MRX | 41 min |
| Jul 7, 1:11 PM CDT | Severe Thunderstorm Warning | MRX | 49 min |
| Jul 8, 2:34 AM CDT | Heat Advisory | MRX | 15 hr |
| Jul 8, 5:25 PM CDT | Severe Thunderstorm Warning | MRX | 50 min |
| Jul 8, 6:15 PM CDT | Special Weather Statement | MRX | 45 min |
| Jul 9, 10:22 PM CDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 20, 5:32 PM CDT | Special Weather Statement | MRX | 43 min |
| Jul 20, 5:40 PM CDT | Severe Thunderstorm Warning | MRX | 25 min |
| Jul 21, 5:33 AM CDT | Special Weather Statement | MRX | 57 min |
| Aug 7, 5:46 PM CDT | Special Weather Statement | MRX | 44 min |
| Aug 9, 2:30 PM CDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 10, 9:25 AM CDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 10, 10:02 AM CDT | Flash Flood Warning | MRX | 6 hr |
| Aug 10, 10:58 AM CDT | Flash Flood Warning | MRX | 4 hr |
| Aug 11, 12:09 AM CDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 11, 12:26 AM CDT | Flash Flood Warning | MRX | 2 hr |
| Aug 11, 4:36 PM CDT | Areal Flood Advisory | MRX | 114 min |
| Aug 11, 5:05 PM CDT | Areal Flood Advisory | MRX | 115 min |
| Sep 4, 2:02 AM CDT | Flood Watch | MRX | 41 hr |
| Sep 4, 7:37 AM CDT | Areal Flood Advisory | MRX | 3 hr |
| Oct 12, 6:27 PM CDT | Special Weather Statement | MRX | 48 min |
| Oct 16, 3:08 AM CDT | Freeze Watch | MRX | 11 hr |
| Oct 16, 2:12 PM CDT | Freeze Warning | MRX | 43 hr |
| Oct 18, 1:53 AM CDT | Freeze Warning | MRX | 31 hr |
| Oct 19, 1:49 PM CDT | Freeze Warning | MRX | 19 hr |
| Nov 4, 2:47 AM CDT | Wind Advisory | MRX | 40 hr |
| Nov 27, 10:43 AM CST | Wind Advisory | MRX | 7 hr |
| Nov 29, 3:33 PM CST | Special Weather Statement | MRX | 57 min |
| Nov 29, 9:07 PM CST | Areal Flood Advisory | MRX | 3 hr |
| Dec 5, 10:42 PM CST | Areal Flood Advisory | MRX | 3 hr |
| Dec 7, 9:56 PM CST | Dense Fog Advisory | MRX | 10 hr |
| Dec 9, 8:02 PM CST | Dense Fog Advisory | MRX | 13 hr |
| Dec 13, 9:45 AM CST | River Flood Warning | MRX | 3 days |
| Dec 14, 4:24 PM CST | Areal Flood Advisory | MRX | 4 hr |
| Dec 14, 4:50 PM CST | Areal Flood Warning | MRX | 8 hr |
| Dec 21, 2:49 AM CST | Wind Chill Watch | MRX | 12 hr |
| Dec 21, 2:30 PM CST | Wind Chill Warning | MRX | 70 hr |
| Dec 22, 3:04 AM CST | Winter Weather Advisory | MRX | 32 hr |
| Dec 22, 1:49 PM CST | Wind Advisory | MRX | 25 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 | 12 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 12 |
| Special Weather Statement | 24 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 3 |
| River Flood Warning | 4 |
| Flood Watch | 3 |
| Areal Flood Advisory | 16 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Wind Chill Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20212023
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.