Alert archive / Tennessee / Polk County
Weather alerts in Polk County, Tennessee, 2025
123 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2025. Tap one for its archive.
- Alerts
- 123
- Warnings
- 26
- Watches
- 16
- Advisories
- 26
- Busiest month
- May29 alerts
- Busiest day
- May 2, 20256 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 Polk County in 2025 had a tornado report inside them.
Polk County, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 15 | 8 | 47% | 4 | 75% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2025
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 28 | 2 | 93% | 3 | 67% | 11 min |
| NWS Morristown, TN: severe thunderstorm warnings | 231 | 187 | 19% | 300 | 84% | 22 min |
| NWS Morristown, TN: flash flood warnings | 66 | 36 | 45% | 66 | 85% | 70 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 8, 3:33 AM EST | Winter Storm Watch | MRX | 32 hr |
| Jan 9, 11:46 AM EST | Winter Storm Warning | MRX | 43 hr |
| Jan 10, 4:30 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 18, 2:34 PM EST | Extreme Cold Watch | MRX | 13 hr |
| Jan 19, 3:37 AM EST | Cold Weather Advisory | MRX | 32 hr |
| Jan 19, 3:37 AM EST | Extreme Cold Warning | MRX | 32 hr |
| Jan 20, 3:23 PM EST | Cold Weather Advisory | MRX | 43 hr |
| Feb 10, 2:03 PM EST | Flood Watch | MRX | 61 hr |
| Feb 12, 9:30 PM EST | Areal Flood Advisory | MRX | 4 hr |
| Feb 13, 2:50 PM EST | High Wind Watch | MRX | 12 hr |
| Feb 14, 2:49 AM EST | High Wind Warning | MRX | 57 hr |
| Feb 15, 3:26 AM EST | Wind Advisory | MRX | 33 hr |
| Feb 16, 1:51 AM EST | Mesoscale Discussion | SPC | 114 min |
| Feb 16, 3:26 AM EST | Special Weather Statement | MRX | 49 min |
| Feb 17, 3:23 PM EST | Winter Weather Advisory | MRX | 3 days |
| Feb 20, 3:18 AM EST | Cold Weather Advisory | MRX | 31 hr |
| Feb 28, 8:50 PM EST | Red Flag Warning | MRX | 23 hr |
| Mar 3, 1:30 PM EST | Wind Advisory | MRX | 54 hr |
| Mar 12, 2:23 PM EDT | High Wind Watch | MRX | 24 hr |
| Mar 13, 2:37 PM EDT | High Wind Warning | MRX | 64 hr |
| Mar 13, 5:02 PM EDT | Special Weather Statement | MRX | 43 min |
| Mar 14, 1:02 PM EDT | Flood Watch | MRX | 43 hr |
| Mar 14, 2:58 PM EDT | Red Flag Warning | MRX | 32 hr |
| Mar 15, 1:34 AM EDT | Wind Advisory | MRX | 30 hr |
| Mar 15, 10:43 AM EDT | Severe Thunderstorm Warning | MRX | 47 min |
| Mar 15, 4:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Mar 15, 5:58 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 15, 7:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 15, 9:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 2:00 PM EDT | Wind Advisory | MRX | 42 hr |
| Mar 18, 2:46 PM EDT | Red Flag Warning | MRX | 32 hr |
| Mar 22, 10:55 AM EDT | Red Flag Warning | MRX | 12 hr |
| Mar 22, 3:01 PM EDT | Red Flag Warning | MRX | 30 hr |
| Mar 26, 9:53 AM EDT | Red Flag Warning | MRX | 10 hr |
| Mar 31, 12:29 AM EDT | Mesoscale Discussion | SPC | 46 min |
| Mar 31, 1:40 AM EDT | Tornado Watch | SPC | 4 hr |
| Mar 31, 3:21 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 31, 6:15 AM EDT | Special Weather Statement | MRX | 45 min |
| Mar 31, 6:30 AM EDT | Special Weather Statement | MRX | 45 min |
| Apr 6, 1:36 AM EDT | Tornado Watch | SPC | 4 hr |
| Apr 10, 4:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 10, 5:03 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 10, 5:21 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Apr 10, 6:08 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Apr 22, 3:11 AM EDT | Special Weather Statement | MRX | 49 min |
| Apr 23, 4:33 PM EDT | Severe Thunderstorm Warning | MRX | 31 min |
| Apr 25, 2:13 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| May 1, 7:32 PM EDT | Special Weather Statement | MRX | 43 min |
| May 2, 1:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 2, 2:01 PM EDT | Special Weather Statement | MRX | 44 min |
| May 2, 3:14 PM EDT | Special Weather Statement | MRX | 46 min |
| May 2, 3:38 PM EDT | Severe Thunderstorm Warning | MRX | 37 min |
| May 2, 6:53 PM EDT | Severe Thunderstorm Warning | MRX | 52 min |
| May 2, 7:37 PM EDT | Severe Thunderstorm Warning | MRX | 53 min |
| May 3, 5:21 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| May 3, 5:58 PM EDT | Special Weather Statement | MRX | 47 min |
| May 8, 12:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 8, 3:30 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 8, 4:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| May 8, 7:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 8, 9:48 PM EDT | Special Weather Statement | MRX | 42 min |
| May 9, 4:56 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| May 12, 10:22 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 16, 9:37 PM EDT | Tornado Watch | SPC | 6 hr |
| May 17, 2:27 AM EDT | Tornado Warning | MRX | 48 min |
| May 17, 3:18 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 17, 5:17 AM EDT | Special Weather Statement | MRX | 58 min |
| May 19, 1:48 PM EDT | Special Weather Statement | MRX | 42 min |
| May 19, 2:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 19, 8:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 20, 6:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 20, 7:27 PM EDT | Tornado Watch | SPC | 6 hr |
| May 20, 9:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 20, 10:29 PM EDT | Special Weather Statement | MRX | 46 min |
| May 25, 2:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 25, 5:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 6, 5:39 PM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jun 6, 6:20 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 6, 6:38 PM EDT | Special Weather Statement | MRX | 52 min |
| Jun 6, 6:39 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| Jun 7, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 18 days |
| Jun 7, 4:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 7, 5:10 PM EDT | Severe Thunderstorm Warning | MRX | 38 min |
| Jun 8, 4:09 AM EDT | Special Weather Statement | MRX | 36 min |
| Jun 9, 6:18 PM EDT | Special Weather Statement | MRX | 42 min |
| Jun 9, 7:02 PM EDT | Special Weather Statement | MRX | 43 min |
| Jun 14, 2:50 PM EDT | Special Weather Statement | MRX | 55 min |
| Jun 17, 1:56 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 17, 5:43 PM EDT | Special Weather Statement | MRX | 47 min |
| Jun 18, 4:17 PM EDT | Special Weather Statement | MRX | 43 min |
| Jun 23, 11:42 AM EDT | Heat Advisory | MRX | 3 days |
| Jun 27, 3:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 3:37 PM EDT | Severe Thunderstorm Warning | MRX | 38 min |
| Jul 1, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 3:36 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Jul 1, 7:00 PM EDT | Special Weather Statement | MRX | 45 min |
| Jul 1, 7:46 PM EDT | Special Weather Statement | MRX | 44 min |
| Jul 4, 3:42 PM EDT | Special Weather Statement | MRX | 48 min |
| Jul 4, 4:19 PM EDT | Severe Thunderstorm Warning | MRX | 41 min |
| Jul 12, 2:55 PM EDT | Special Weather Statement | MRX | 50 min |
| Jul 22, 5:21 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| Jul 27, 1:40 PM EDT | Heat Advisory | MRX | 3 days |
| Jul 28, 2:42 PM EDT | Special Weather Statement | MRX | 33 min |
| Jul 31, 12:41 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 1, 7:35 PM EDT | Special Weather Statement | MRX | 40 min |
| Aug 1, 8:14 PM EDT | Areal Flood Advisory | MRX | 4 hr |
| Aug 13, 3:43 AM EDT | Flood Watch | MRX | 11 hr |
| Aug 16, 5:37 PM EDT | Special Weather Statement | MRX | 38 min |
| Aug 20, 3:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 23, 7:49 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 6, 3:14 AM EDT | Special Weather Statement | MRX | 46 min |
| Sep 24, 7:55 PM EDT | Special Weather Statement | MRX | 50 min |
| Sep 27, 2:47 PM EDT | Special Weather Statement | MRX | 43 min |
| Nov 4, 4:42 AM EST | Dense Fog Advisory | MRX | 5 hr |
| Nov 7, 11:22 PM EST | Severe Thunderstorm Warning | MRX | 38 min |
| Nov 8, 6:23 AM EST | Dense Fog Advisory | MRX | 5 hr |
| Nov 9, 5:02 AM EST | Dense Fog Advisory | MRX | 3 hr |
| Nov 20, 6:15 AM EST | Dense Fog Advisory | MRX | 5 hr |
| Nov 21, 5:43 AM EST | Dense Fog Advisory | MRX | 3 hr |
| Dec 7, 4:03 AM EST | Freezing Fog Advisory | MRX | 6 hr |
| Dec 13, 12:24 PM EST | Cold Weather Advisory | MRX | 46 hr |
| Dec 18, 10:57 PM EST | Special Weather Statement | MRX | 48 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 | 15 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 31 |
| Flooding | |
| Flood Watch | 3 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Extreme Cold Warning | 1 |
| Extreme Cold Watch | 1 |
| Cold Weather Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20242026
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.