Alert archive / Tennessee / Blount County
Weather alerts in Blount County, Tennessee, 2026
140 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Blount County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 140
- Warnings
- 33
- Watches
- 17
- Advisories
- 62
- Busiest month
- August32 alerts
- Busiest day
- August 17, 202610 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 Blount County in 2026 had a tornado report inside them.
Blount County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 16 | 13 | 19% | 8 | 38% | 24 min |
| Flash flood warnings | 11 | 9 | 18% | 2 | 100% | 20 min |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 10 | 1 | 90% | 3 | 33% | 3 min |
| NWS Morristown, TN: severe thunderstorm warnings | 182 | 146 | 20% | 226 | 89% | 22 min |
| NWS Morristown, TN: flash flood warnings | 81 | 55 | 32% | 128 | 84% | 70 min |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
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, 10:34 AM EST | Wind Advisory | MRX | 26 hr |
| Jan 10, 1:22 PM EST | Wind Advisory | MRX | 30 hr |
| Jan 13, 11:29 AM EST | Winter Weather Advisory | MRX | 48 hr |
| Jan 14, 12:25 AM EST | Winter Storm Warning | MRX | 35 hr |
| Jan 16, 12:05 PM EST | Wind Advisory | MRX | 17 hr |
| Jan 21, 12:27 PM EST | Winter Storm Watch | MRX | 45 hr |
| Jan 23, 9:54 AM EST | High Wind Warning | MRX | 57 hr |
| Jan 23, 9:54 AM EST | Winter Weather Advisory | MRX | 47 hr |
| Jan 24, 1:17 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 24, 11:49 PM EST | Cold Weather Advisory | MRX | 34 hr |
| Jan 25, 12:01 PM EST | Cold Weather Advisory | MRX | 48 hr |
| Jan 25, 12:01 PM EST | Extreme Cold Watch | MRX | 14 hr |
| Jan 25, 1:54 PM EST | Areal Flood Advisory | MRX | 3 hr |
| Jan 29, 2:50 AM EST | Winter Storm Watch | MRX | 10 hr |
| Jan 29, 12:50 PM EST | Winter Storm Warning | MRX | 57 hr |
| Jan 29, 1:00 PM EST | Cold Weather Advisory | MRX | 71 hr |
| Jan 29, 1:00 PM EST | Extreme Cold Watch | MRX | 23 hr |
| Jan 30, 12:20 PM EST | Extreme Cold Warning | MRX | 48 hr |
| Feb 2, 12:39 AM EST | Cold Weather Advisory | MRX | 8 hr |
| Feb 4, 4:01 AM EST | Dense Fog Advisory | MRX | 8 hr |
| Feb 5, 12:30 PM EST | Wind Advisory | MRX | 55 hr |
| Feb 5, 12:30 PM EST | Winter Weather Advisory | MRX | 43 hr |
| Feb 6, 12:34 PM EST | Cold Weather Advisory | MRX | 21 hr |
| Feb 14, 12:06 PM EST | Wind Advisory | MRX | 26 hr |
| Feb 19, 2:29 AM EST | Wind Advisory | MRX | 35 hr |
| Feb 20, 5:54 AM EST | Severe Thunderstorm Warning | MRX | 38 min |
| Feb 21, 1:31 PM EST | Winter Weather Advisory | MRX | 58 hr |
| Feb 24, 12:20 PM EST | Wind Advisory | MRX | 22 hr |
| Mar 9, 3:05 AM EDT | Dense Fog Advisory | MRX | 7 hr |
| Mar 11, 5:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Mar 14, 2:07 AM EDT | High Wind Watch | MRX | 12 hr |
| Mar 14, 1:44 PM EDT | High Wind Warning | MRX | 42 hr |
| Mar 15, 2:17 PM EDT | Wind Advisory | MRX | 18 hr |
| Mar 16, 12:41 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 16, 12:51 AM EDT | Winter Weather Advisory | MRX | 38 hr |
| Mar 16, 3:21 AM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Mar 16, 3:47 AM EDT | Severe Thunderstorm Warning | MRX | 58 min |
| Mar 16, 3:56 AM EDT | Severe Thunderstorm Warning | MRX | 64 min |
| Mar 16, 4:17 AM EDT | Severe Thunderstorm Warning | MRX | 58 min |
| Mar 16, 4:40 AM EDT | Severe Thunderstorm Warning | MRX | 35 min |
| Mar 16, 4:44 AM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Mar 16, 5:09 AM EDT | Severe Thunderstorm Warning | MRX | 55 min |
| Mar 21, 3:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Mar 21, 6:35 PM EDT | Special Weather Statement | MRX | 40 min |
| Mar 22, 1:53 PM EDT | Wind Advisory | MRX | 19 hr |
| Apr 4, 6:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 12:52 AM EDT | Dense Fog Advisory | MRX | 9 hr |
| Apr 27, 1:20 PM EDT | Wind Advisory | MRX | 17 hr |
| May 2, 12:42 PM EDT | Frost Advisory | MRX | 20 hr |
| May 5, 1:51 PM EDT | Wind Advisory | MRX | 21 hr |
| May 22, 1:46 PM EDT | Wind Advisory | MRX | 18 hr |
| May 23, 9:26 PM EDT | Wind Advisory | MRX | 10 hr |
| May 24, 12:57 PM EDT | Flood Watch | MRX | 13 hr |
| May 24, 6:38 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 24, 8:30 PM EDT | Flash Flood Warning | MRX | 3 hr |
| May 25, 12:13 PM EDT | Flood Watch | MRX | 15 hr |
| May 29, 1:59 PM EDT | Flood Watch | MRX | 24 hr |
| May 29, 8:59 PM EDT | Flash Flood Warning | MRX | 4 hr |
| May 30, 6:56 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 30, 7:58 AM EDT | Areal Flood Advisory | MRX | 6 hr |
| May 30, 8:25 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 30, 9:28 AM EDT | Flash Flood Warning | MRX | 3 hr |
| May 30, 10:03 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 30, 12:14 PM EDT | Areal Flood Advisory | MRX | 76 min |
| Jun 7, 2:09 PM EDT | Flood Watch | MRX | 31 hr |
| Jun 22, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 22, 11:52 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 27, 9:44 AM EDT | Flood Watch | MRX | 28 hr |
| Jun 28, 6:54 AM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jun 28, 10:40 AM EDT | Special Weather Statement | MRX | 65 min |
| Jun 28, 11:19 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jun 29, 1:34 PM EDT | Heat Advisory | MRX | 5 days |
| Jul 3, 4:41 PM EDT | Special Weather Statement | MRX | 49 min |
| Jul 3, 8:05 PM EDT | Special Weather Statement | MRX | 25 min |
| Jul 6, 5:18 PM EDT | Areal Flood Advisory | MRX | 117 min |
| Jul 9, 11:44 AM EDT | Flood Watch | MRX | 4 days |
| Jul 12, 7:53 PM EDT | Areal Flood Advisory | MRX | 84 min |
| Jul 12, 8:18 PM EDT | Flash Flood Warning | MRX | 5 hr |
| Jul 12, 9:26 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 13, 1:06 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 17, 3:31 PM EDT | Areal Flood Advisory | MRX | 19 min |
| Jul 17, 3:50 PM EDT | Flash Flood Warning | MRX | 97 min |
| Jul 19, 3:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:45 PM EDT | Flood Watch | MRX | 54 hr |
| Jul 22, 5:37 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 22, 9:59 PM EDT | Special Weather Statement | MRX | 46 min |
| Jul 23, 5:49 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 23, 6:27 AM EDT | Flash Flood Warning | MRX | 3 hr |
| Jul 23, 6:45 AM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jul 23, 9:47 AM EDT | Areal Flood Advisory | MRX | 4 hr |
| Jul 23, 11:14 AM EDT | Flash Flood Warning | MRX | 3 hr |
| Jul 23, 11:22 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 23, 2:04 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 28, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 28, 3:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 6:09 PM EDT | Severe Thunderstorm Warning | MRX | 51 min |
| Jul 28, 6:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 28, 6:42 PM EDT | Severe Thunderstorm Warning | MRX | 33 min |
| Jul 28, 7:02 PM EDT | Tornado Warning | MRX | 30 min |
| Aug 1, 9:44 PM EDT | Severe Thunderstorm Warning | MRX | 46 min |
| Aug 5, 2:39 PM EDT | Special Weather Statement | MRX | 36 min |
| Aug 7, 3:13 PM EDT | Special Weather Statement | MRX | 47 min |
| Aug 9, 4:43 PM EDT | Flash Flood Warning | MRX | 86 min |
| Aug 10, 4:11 AM EDT | Dense Fog Advisory | MRX | 6 hr |
| Aug 11, 5:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 7:06 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 11, 8:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 9:34 PM EDT | Special Weather Statement | MRX | 26 min |
| Aug 11, 10:00 PM EDT | Flash Flood Warning | MRX | 2 hr |
| Aug 11, 10:15 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 11, 10:30 PM EDT | Flash Flood Warning | MRX | 4 hr |
| Aug 11, 10:53 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 11, 11:34 PM EDT | Flash Flood Warning | MRX | 3 hr |
| Aug 12, 12:14 AM EDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 12, 2:38 AM EDT | Flood Watch | MRX | 29 hr |
| Aug 13, 6:31 PM EDT | Special Weather Statement | MRX | 29 min |
| Aug 13, 7:11 PM EDT | Special Weather Statement | MRX | 34 min |
| Aug 14, 12:11 PM EDT | Heat Advisory | MRX | 3 days |
| Aug 15, 1:25 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 17, 1:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 17, 2:35 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 17, 4:33 PM EDT | Severe Thunderstorm Warning | MRX | 57 min |
| Aug 17, 4:42 PM EDT | Severe Thunderstorm Warning | MRX | 20 min |
| Aug 17, 4:59 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Aug 17, 5:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 17, 5:54 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 17, 5:57 PM EDT | Special Weather Statement | MRX | 48 min |
| Aug 17, 6:03 PM EDT | Severe Thunderstorm Warning | MRX | 27 min |
| Aug 17, 6:11 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 20, 10:00 PM EDT | Severe Thunderstorm Warning | MRX | 15 min |
| Aug 22, 7:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Sep 2, 12:32 AM EDT | Heat Advisory | MRX | 4 days |
| Sep 2, 1:58 PM EDT | Heat Advisory | MRX | 3 days |
| Sep 5, 1:47 PM EDT | Special Weather Statement | MRX | 58 min |
| Sep 13, 3:38 AM EDT | Dense Fog Advisory | MRX | 5 hr |
| Sep 19, 6:44 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 22, 6:07 AM EDT | Areal Flood Advisory | MRX | 53 min |
| Sep 23, 2:38 PM EDT | Special Weather Statement | MRX | 37 min |
| Sep 23, 3:09 PM EDT | Special Weather Statement | MRX | 51 min |
| Sep 23, 6:00 PM EDT | Areal Flood Advisory | MRX | 3 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 | 16 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 11 |
| Flood Watch | 8 |
| Areal Flood Advisory | 29 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Extreme Cold Warning | 1 |
| Extreme Cold Watch | 2 |
| Cold Weather Advisory | 5 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
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.