Alert archive / Tennessee / Blount County
Weather alerts in Blount County, Tennessee, 2010
187 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 187
- Warnings
- 47
- Watches
- 22
- Advisories
- 97
- Busiest month
- January28 alerts
- Busiest day
- March 12, 201010 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering Blount County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 23 minutes after it went out.
Blount County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 1 | 100% | 23 min |
| Severe thunderstorm warnings | 23 | 19 | 17% | 12 | 92% | 26 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Morristown, TN: tornado warnings | 30 | 6 | 80% | 9 | 89% | 20 min |
| NWS Morristown, TN: severe thunderstorm warnings | 212 | 158 | 25% | 289 | 79% | 22 min |
| NWS Morristown, TN: flash flood warnings | 23 | 12 | 48% | 23 | 78% | 67 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 1, 3:11 PM EST | Wind Chill Advisory | MRX | 18 hr |
| Jan 2, 3:36 AM EST | Wind Chill Advisory | MRX | 29 hr |
| Jan 2, 7:41 AM EST | Winter Weather Advisory | MRX | 4 hr |
| Jan 2, 12:06 PM EST | Winter Weather Advisory | MRX | 2 hr |
| Jan 4, 4:33 AM EST | Wind Chill Advisory | MRX | 30 hr |
| Jan 4, 4:33 AM EST | Winter Weather Advisory | MRX | 38 hr |
| Jan 5, 3:13 AM EST | Wind Chill Advisory | MRX | 30 hr |
| Jan 6, 3:06 PM EST | Winter Weather Advisory | MRX | 60 hr |
| Jan 7, 3:10 PM EST | Wind Chill Advisory | MRX | 43 hr |
| Jan 9, 3:03 PM EST | Wind Chill Advisory | MRX | 19 hr |
| Jan 11, 3:00 PM EST | Winter Weather Advisory | MRX | 27 hr |
| Jan 15, 3:01 PM EST | High Wind Watch | MRX | 24 hr |
| Jan 16, 2:59 PM EST | High Wind Warning | MRX | 15 hr |
| Jan 20, 8:31 PM EST | Wind Advisory | MRX | 22 hr |
| Jan 20, 9:19 PM EST | Areal Flood Advisory | MRX | 4 hr |
| Jan 22, 3:30 PM EST | High Wind Watch | MRX | 24 hr |
| Jan 23, 3:42 PM EST | High Wind Warning | MRX | 24 hr |
| Jan 24, 1:10 PM EST | Flood Watch | MRX | 8 hr |
| Jan 24, 3:15 PM EST | Areal Flood Advisory | MRX | 5 hr |
| Jan 24, 3:47 PM EST | Wind Advisory | MRX | 4 hr |
| Jan 24, 8:04 PM EST | Areal Flood Warning | MRX | 6 hr |
| Jan 25, 2:00 AM EST | Areal Flood Warning | MRX | 3 hr |
| Jan 25, 4:50 AM EST | Winter Weather Advisory | MRX | 23 hr |
| Jan 25, 5:07 AM EST | Wind Advisory | MRX | 17 hr |
| Jan 27, 2:59 PM EST | Winter Storm Watch | MRX | 24 hr |
| Jan 28, 2:56 PM EST | Winter Storm Warning | MRX | 48 hr |
| Jan 29, 9:06 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 30, 9:28 AM EST | Winter Weather Advisory | MRX | 17 hr |
| Feb 1, 3:52 PM EST | Winter Weather Advisory | MRX | 21 hr |
| Feb 4, 3:22 PM EST | Winter Weather Advisory | MRX | 19 hr |
| Feb 4, 3:28 PM EST | Wind Advisory | MRX | 25 hr |
| Feb 5, 4:36 AM EST | Winter Weather Advisory | MRX | 33 hr |
| Feb 8, 3:22 PM EST | Winter Weather Advisory | MRX | 24 hr |
| Feb 9, 4:08 AM EST | Winter Weather Advisory | MRX | 39 hr |
| Feb 9, 4:25 AM EST | High Wind Watch | MRX | 12 hr |
| Feb 9, 4:25 AM EST | Wind Advisory | MRX | 47 hr |
| Feb 9, 10:26 AM EST | Wind Advisory | MRX | 6 hr |
| Feb 9, 3:48 PM EST | Winter Storm Warning | MRX | 35 hr |
| Feb 12, 3:15 AM EST | Winter Weather Advisory | MRX | 19 hr |
| Feb 13, 3:32 PM EST | Winter Storm Watch | MRX | 12 hr |
| Feb 14, 3:44 AM EST | Winter Weather Advisory | MRX | 4 days |
| Feb 14, 3:05 PM EST | Winter Storm Warning | MRX | 36 hr |
| Feb 21, 8:44 PM EST | Wind Advisory | MRX | 9 hr |
| Feb 23, 2:43 PM EST | Winter Storm Watch | MRX | 25 hr |
| Feb 24, 3:25 PM EST | Winter Weather Advisory | MRX | 37 hr |
| Feb 24, 10:26 PM EST | Winter Storm Warning | MRX | 30 hr |
| Feb 25, 3:37 PM EST | Wind Advisory | MRX | 23 hr |
| Feb 27, 3:05 PM EST | Winter Weather Advisory | MRX | 21 hr |
| Mar 1, 3:20 PM EST | Winter Weather Advisory | MRX | 28 hr |
| Mar 2, 10:05 AM EST | Winter Storm Warning | MRX | 18 hr |
| Mar 3, 3:42 AM EST | Winter Weather Advisory | MRX | 30 hr |
| Mar 12, 3:42 AM EST | Flood Watch | MRX | 19 hr |
| Mar 12, 4:05 AM EST | High Wind Warning | MRX | 18 hr |
| Mar 12, 12:04 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 12, 12:15 PM EST | Areal Flood Advisory | MRX | 4 hr |
| Mar 12, 12:56 PM EST | Severe Thunderstorm Warning | MRX | 49 min |
| Mar 12, 1:42 PM EST | Severe Thunderstorm Warning | MRX | 48 min |
| Mar 12, 1:56 PM EST | Severe Thunderstorm Warning | MRX | 34 min |
| Mar 12, 2:32 PM EST | Areal Flood Warning | MRX | 4 hr |
| Mar 12, 2:40 PM EST | Mesoscale Discussion | SPC | 65 min |
| Mar 12, 5:04 PM EST | Areal Flood Advisory | MRX | 3 hr |
| Mar 12, 7:49 PM EST | Areal Flood Advisory | MRX | 2 hr |
| Mar 14, 4:26 AM EDT | Winter Weather Advisory | MRX | 31 hr |
| Mar 21, 10:21 AM EDT | Wind Advisory | MRX | 18 hr |
| Mar 25, 8:51 PM EDT | Wind Advisory | MRX | 6 hr |
| Mar 27, 2:40 AM EDT | Wind Advisory | MRX | 36 hr |
| Mar 28, 2:39 AM EDT | High Wind Warning | MRX | 12 hr |
| Apr 9, 3:02 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 9, 3:02 PM EDT | Freeze Warning | MRX | 18 hr |
| Apr 17, 3:12 PM EDT | Frost Advisory | MRX | 18 hr |
| Apr 18, 1:55 PM EDT | Frost Advisory | MRX | 19 hr |
| Apr 24, 6:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 24, 7:15 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 25, 12:05 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Apr 25, 1:26 AM EDT | Severe Thunderstorm Warning | MRX | 49 min |
| Apr 25, 1:41 AM EDT | Tornado Warning | MRX | 34 min |
| Apr 25, 2:04 AM EDT | Tornado Warning | MRX | 20 min |
| Apr 27, 3:33 AM EDT | Frost Advisory | MRX | 29 hr |
| Apr 28, 2:49 PM EDT | Frost Advisory | MRX | 18 hr |
| May 1, 6:35 PM EDT | Tornado Watch | SPC | 4 hr |
| May 1, 7:54 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 1, 8:07 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 2, 3:31 AM EDT | Flash Flood Watch | MRX | 27 hr |
| May 3, 12:37 AM EDT | Areal Flood Advisory | MRX | 6 hr |
| May 3, 1:11 AM EDT | Areal Flood Warning | MRX | 6 hr |
| May 3, 2:33 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 3, 7:02 AM EDT | Areal Flood Warning | MRX | 3 hr |
| May 9, 9:43 PM EDT | Frost Advisory | MRX | 11 hr |
| May 14, 12:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 14, 8:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 15, 2:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 1:05 PM EDT | Severe Thunderstorm Warning | MRX | 40 min |
| May 16, 1:38 PM EDT | Areal Flood Advisory | MRX | 112 min |
| May 16, 3:27 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 16, 5:03 PM EDT | Severe Thunderstorm Warning | MRX | 42 min |
| May 17, 12:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| May 17, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 1:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 28, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 2:27 PM EDT | Severe Thunderstorm Warning | MRX | 63 min |
| May 28, 2:41 PM EDT | Severe Thunderstorm Warning | MRX | 49 min |
| May 28, 2:52 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| May 28, 3:47 PM EDT | Severe Thunderstorm Warning | MRX | 28 min |
| May 28, 4:22 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jun 2, 5:17 AM EDT | Dense Fog Advisory | MRX | 4 hr |
| Jun 11, 1:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 4:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 14, 4:28 PM EDT | Severe Thunderstorm Warning | MRX | 62 min |
| Jun 14, 4:59 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jun 15, 1:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 2:33 PM EDT | Severe Thunderstorm Warning | MRX | 57 min |
| Jun 15, 3:14 PM EDT | Severe Thunderstorm Warning | MRX | 61 min |
| Jun 15, 3:18 PM EDT | Severe Thunderstorm Warning | MRX | 57 min |
| Jun 15, 4:00 PM EDT | Severe Thunderstorm Warning | MRX | 60 min |
| Jun 19, 11:30 AM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 19, 12:34 PM EDT | Severe Thunderstorm Warning | MRX | 56 min |
| Jun 23, 5:55 PM EDT | Areal Flood Advisory | MRX | 110 min |
| Jun 24, 5:45 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 9, 1:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 13, 3:23 PM EDT | Areal Flood Advisory | MRX | 112 min |
| Jul 16, 6:37 PM EDT | Areal Flood Advisory | MRX | 63 min |
| Jul 21, 4:17 PM EDT | Areal Flood Advisory | MRX | 118 min |
| Jul 22, 2:12 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Jul 26, 1:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 28, 5:32 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 28, 7:56 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 28, 9:21 PM EDT | Severe Thunderstorm Warning | MRX | 54 min |
| Jul 29, 1:40 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Jul 31, 11:13 AM EDT | Mesoscale Discussion | SPC | 62 min |
| Aug 2, 3:19 PM EDT | Heat Advisory | MRX | 3 days |
| Aug 5, 1:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 5, 1:47 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 5, 5:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Aug 11, 11:31 PM EDT | Severe Thunderstorm Warning | MRX | 29 min |
| Aug 13, 2:34 AM EDT | Heat Advisory | MRX | 16 hr |
| Aug 18, 3:08 AM EDT | Flash Flood Watch | MRX | 31 hr |
| Aug 19, 4:39 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Aug 19, 11:09 PM EDT | Dense Fog Advisory | MRX | 10 hr |
| Aug 21, 1:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Aug 21, 11:14 PM EDT | Areal Flood Advisory | MRX | 2 hr |
| Aug 21, 11:53 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 11, 6:43 PM EDT | Areal Flood Advisory | MRX | 3 hr |
| Sep 11, 7:06 PM EDT | Severe Thunderstorm Warning | MRX | 39 min |
| Sep 11, 7:20 PM EDT | Severe Thunderstorm Warning | MRX | 25 min |
| Sep 11, 7:44 PM EDT | Severe Thunderstorm Warning | MRX | 31 min |
| Oct 5, 10:39 AM EDT | Frost Advisory | MRX | 22 hr |
| Oct 6, 2:51 PM EDT | Frost Advisory | MRX | 18 hr |
| Oct 14, 2:40 PM EDT | Frost Advisory | MRX | 17 hr |
| Oct 15, 3:01 PM EDT | Frost Advisory | MRX | 17 hr |
| Oct 16, 2:50 PM EDT | Frost Advisory | MRX | 19 hr |
| Oct 21, 2:41 PM EDT | Frost Advisory | MRX | 17 hr |
| Oct 22, 2:50 PM EDT | Frost Advisory | MRX | 17 hr |
| Oct 25, 5:35 AM EDT | Tornado Watch | SPC | 7 hr |
| Oct 25, 7:31 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Oct 26, 2:33 AM EDT | High Wind Warning | MRX | 19 hr |
| Oct 26, 2:33 AM EDT | Wind Advisory | MRX | 19 hr |
| Oct 26, 2:16 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 26, 4:03 PM EDT | Tornado Warning | MRX | 42 min |
| Oct 26, 6:37 PM EDT | Severe Thunderstorm Warning | MRX | 23 min |
| Oct 26, 6:58 PM EDT | Severe Thunderstorm Warning | MRX | 32 min |
| Oct 26, 8:09 PM EDT | Tornado Warning | MRX | 51 min |
| Oct 27, 4:08 AM EDT | Areal Flood Advisory | MRX | 3 hr |
| Oct 27, 11:05 PM EDT | Dense Fog Advisory | MRX | 8 hr |
| Nov 4, 2:51 PM EDT | Winter Weather Advisory | MRX | 38 hr |
| Nov 23, 10:05 PM EST | Dense Fog Advisory | MRX | 11 hr |
| Nov 25, 7:47 PM EST | Wind Advisory | MRX | 8 hr |
| Nov 28, 9:30 PM EST | High Wind Watch | MRX | 18 hr |
| Nov 28, 9:30 PM EST | Wind Advisory | MRX | 37 hr |
| Nov 29, 3:10 PM EST | High Wind Warning | MRX | 24 hr |
| Nov 30, 9:37 AM EST | Areal Flood Advisory | MRX | 4 hr |
| Nov 30, 2:50 PM EST | Wind Advisory | MRX | 3 hr |
| Dec 1, 7:41 AM EST | Areal Flood Advisory | MRX | 6 hr |
| Dec 4, 3:17 AM EST | Winter Weather Advisory | MRX | 36 hr |
| Dec 6, 11:28 AM EST | Winter Weather Advisory | MRX | 28 hr |
| Dec 10, 3:28 PM EST | Winter Storm Watch | MRX | 24 hr |
| Dec 11, 3:31 PM EST | Winter Storm Warning | MRX | 62 hr |
| Dec 11, 3:31 PM EST | Winter Weather Advisory | MRX | 51 hr |
| Dec 11, 7:42 PM EST | Wind Advisory | MRX | 8 hr |
| Dec 12, 2:57 PM EST | Wind Chill Advisory | MRX | 44 hr |
| Dec 15, 3:51 AM EST | Winter Weather Advisory | MRX | 32 hr |
| Dec 16, 3:22 AM EST | Wind Advisory | MRX | 12 hr |
| Dec 24, 3:22 PM EST | Winter Storm Watch | MRX | 25 hr |
| Dec 24, 3:22 PM EST | Winter Weather Advisory | MRX | 25 hr |
| Dec 25, 9:11 AM EST | Winter Storm Warning | MRX | 7 hr |
| Dec 25, 4:07 PM EST | Winter Storm Warning | MRX | 45 hr |
| Dec 25, 4:07 PM EST | Winter Weather Advisory | MRX | 31 hr |
| Dec 26, 3:57 AM EST | Wind Advisory | MRX | 33 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 | 23 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 21 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 27 |
| Winter | |
| Winter Storm Warning | 8 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 26 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 13 |
| Wind Chill Advisory | 7 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 4 |
| Wind Advisory | 18 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.