Alert archive / Tennessee / Macon County
Weather alerts in Macon County, Tennessee, 2010
132 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Macon County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 132
- Warnings
- 38
- Watches
- 29
- Advisories
- 32
- Busiest month
- May28 alerts
- Busiest day
- May 2, 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 5 tornado warnings covering Macon County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 6 minutes after it went out.
Macon County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 1 | 80% | 1 | 100% | 6 min |
| Severe thunderstorm warnings | 16 | 7 | 56% | 5 | 40% | 12 min |
| Flash flood warnings | 6 | 3 | 50% | 1 | 100% | 30 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Nashville, TN: tornado warnings | 65 | 11 | 83% | 16 | 63% | 13 min |
| NWS Nashville, TN: severe thunderstorm warnings | 375 | 124 | 67% | 240 | 65% | 16 min |
| NWS Nashville, TN: flash flood warnings | 44 | 13 | 70% | 31 | 58% | 115 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 5, 9:43 AM CST | Winter Storm Watch | OHX | 17 hr |
| Jan 6, 3:06 AM CST | Winter Weather Advisory | OHX | 39 hr |
| Jan 7, 3:52 AM CST | Wind Chill Advisory | OHX | 29 hr |
| Jan 17, 10:09 PM CST | Dense Fog Advisory | OHX | 12 hr |
| Jan 21, 2:44 PM CST | Tornado Warning | OHX | 31 min |
| Jan 21, 3:16 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Jan 21, 3:53 PM CST | Severe Thunderstorm Warning | OHX | 37 min |
| Jan 21, 5:14 PM CST | Mesoscale Discussion | SPC | 91 min |
| Jan 23, 4:24 AM CST | Dense Fog Advisory | OHX | 5 hr |
| Jan 23, 4:24 AM CST | Wind Advisory | OHX | 26 hr |
| Jan 27, 1:26 PM CST | Winter Storm Watch | OHX | 26 hr |
| Jan 28, 3:36 PM CST | Winter Storm Warning | OHX | 44 hr |
| Feb 1, 3:18 AM CST | Freezing Fog Advisory | OHX | 5 hr |
| Feb 5, 3:10 PM CST | Winter Weather Advisory | OHX | 19 hr |
| Feb 8, 3:16 AM CST | Winter Weather Advisory | OHX | 19 hr |
| Feb 13, 4:53 AM CST | Winter Weather Advisory | OHX | 59 hr |
| Mar 2, 10:01 AM CST | Winter Weather Advisory | OHX | 2 hr |
| Mar 12, 8:11 AM CST | Severe Thunderstorm Warning | OHX | 34 min |
| Mar 25, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 30, 12:09 PM CDT | Fire Weather Watch | OHX | 30 hr |
| Mar 31, 7:32 AM CDT | Fire Weather Watch | OHX | 35 hr |
| Mar 31, 7:32 AM CDT | Red Flag Warning | OHX | 11 hr |
| Mar 31, 10:15 PM CDT | Fire Weather Watch | OHX | 21 hr |
| Apr 1, 5:28 AM CDT | Fire Weather Watch | OHX | 14 hr |
| Apr 7, 10:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 7, 11:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 9, 3:25 PM CDT | Frost Advisory | OHX | 16 hr |
| Apr 17, 3:42 PM CDT | Frost Advisory | OHX | 15 hr |
| Apr 24, 9:31 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Apr 24, 11:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 24, 1:17 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 2:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 24, 5:48 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Apr 24, 6:15 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 24, 7:34 PM CDT | Tornado Warning | OHX | 26 min |
| Apr 24, 8:10 PM CDT | Severe Thunderstorm Warning | OHX | 35 min |
| Apr 30, 3:26 PM CDT | Flash Flood Watch | OHX | 29 hr |
| May 1, 3:11 AM CDT | Tornado Watch | SPC | 8 hr |
| May 1, 6:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| May 1, 3:17 PM CDT | Areal Flood Warning | OHX | 24 hr |
| May 1, 5:35 PM CDT | Areal Flood Warning | OHX | 24 hr |
| May 1, 10:22 PM CDT | Tornado Watch | SPC | 5 hr |
| May 2, 2:33 AM CDT | Mesoscale Discussion | SPC | 87 min |
| May 2, 3:36 AM CDT | Tornado Watch | SPC | 8 hr |
| May 2, 6:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 2, 8:13 AM CDT | Severe Thunderstorm Warning | OHX | 32 min |
| May 2, 8:49 AM CDT | Severe Thunderstorm Warning | OHX | 41 min |
| May 2, 11:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| May 2, 11:57 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 2, 2:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 2, 5:27 PM CDT | Areal Flood Warning | OHX | 24 hr |
| May 2, 11:57 PM CDT | Dense Fog Advisory | OHX | 8 hr |
| May 3, 6:00 PM CDT | Areal Flood Warning | OHX | 23 hr |
| May 7, 3:16 AM CDT | Wind Advisory | OHX | 15 hr |
| May 14, 11:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| May 14, 11:34 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 14, 1:07 PM CDT | Severe Thunderstorm Warning | OHX | 38 min |
| May 14, 1:09 PM CDT | Flash Flood Watch | OHX | 6 hr |
| May 14, 1:30 PM CDT | Flash Flood Warning | OHX | 3 hr |
| May 14, 1:42 PM CDT | Severe Thunderstorm Warning | OHX | 48 min |
| May 14, 2:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 15, 1:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 2:47 PM CDT | Flash Flood Watch | OHX | 28 hr |
| May 17, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 17, 5:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 4:54 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jun 3, 2:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 5:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 9, 3:43 PM CDT | Severe Thunderstorm Warning | OHX | 32 min |
| Jun 11, 12:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 12:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 9:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 24, 4:11 PM CDT | Special Weather Statement | LMK | 34 min |
| Jun 24, 4:37 PM CDT | Severe Thunderstorm Warning | OHX | 23 min |
| Jul 12, 2:00 PM CDT | Flash Flood Watch | OHX | 20 hr |
| Jul 19, 12:49 AM CDT | Severe Thunderstorm Warning | OHX | 26 min |
| Jul 19, 1:09 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Jul 19, 1:17 AM CDT | Tornado Warning | OHX | 28 min |
| Jul 19, 6:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 22, 3:47 PM CDT | Heat Advisory | OHX | 51 hr |
| Jul 28, 6:43 PM CDT | Severe Thunderstorm Warning | OHX | 32 min |
| Jul 31, 1:33 PM CDT | Mesoscale Discussion | SPC | 27 min |
| Jul 31, 1:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 31, 3:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 31, 6:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 31, 8:11 PM CDT | Mesoscale Discussion | SPC | 34 min |
| Aug 2, 1:30 PM CDT | Heat Advisory | OHX | 3 days |
| Aug 5, 11:41 AM CDT | Severe Thunderstorm Warning | OHX | 34 min |
| Aug 5, 12:15 PM CDT | Severe Thunderstorm Warning | OHX | 30 min |
| Aug 5, 12:47 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 5, 4:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 9, 3:57 AM CDT | Heat Advisory | OHX | 7 days |
| Aug 14, 3:23 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 14, 6:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 17, 2:38 PM CDT | Areal Flood Advisory | OHX | 112 min |
| Aug 17, 3:20 PM CDT | Areal Flood Advisory | OHX | 115 min |
| Aug 18, 6:22 AM CDT | Areal Flood Advisory | OHX | 3 hr |
| Aug 18, 7:08 AM CDT | Areal Flood Warning | OHX | 4 hr |
| Aug 18, 7:39 AM CDT | Flash Flood Watch | OHX | 14 hr |
| Aug 18, 1:12 PM CDT | Flash Flood Warning | OHX | 12 hr |
| Aug 18, 1:18 PM CDT | Flash Flood Warning | OHX | 8 hr |
| Aug 18, 1:30 PM CDT | Flash Flood Warning | OHX | 7 hr |
| Aug 19, 12:16 AM CDT | Flash Flood Warning | OHX | 3 hr |
| Aug 21, 12:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 21, 7:58 PM CDT | Severe Thunderstorm Warning | OHX | 32 min |
| Sep 28, 1:10 AM CDT | Dense Fog Advisory | OHX | 6 hr |
| Oct 3, 4:50 PM CDT | Frost Advisory | OHX | 14 hr |
| Oct 4, 3:30 AM CDT | Frost Advisory | OHX | 29 hr |
| Oct 5, 3:47 AM CDT | Frost Advisory | OHX | 27 hr |
| Oct 21, 3:45 PM CDT | Frost Advisory | OHX | 16 hr |
| Oct 25, 4:02 PM CDT | Wind Advisory | OHX | 24 hr |
| Oct 26, 6:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 26, 9:27 AM CDT | Tornado Watch | SPC | 11 hr |
| Oct 26, 11:57 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 26, 12:12 PM CDT | Severe Thunderstorm Warning | OHX | 33 min |
| Oct 26, 12:24 PM CDT | Tornado Warning | OHX | 36 min |
| Oct 26, 12:44 PM CDT | Tornado Warning | OHX | 31 min |
| Oct 28, 3:07 AM CDT | Freeze Watch | OHX | 35 hr |
| Oct 29, 1:49 PM CDT | Freeze Warning | OHX | 18 hr |
| Nov 4, 3:45 AM CDT | Freeze Watch | OHX | 24 hr |
| Nov 5, 3:20 AM CDT | Freeze Warning | OHX | 30 hr |
| Nov 6, 4:02 AM CDT | Freeze Warning | OHX | 29 hr |
| Nov 15, 5:34 AM CST | Dense Fog Advisory | OHX | 3 hr |
| Nov 25, 2:47 AM CST | Wind Advisory | OHX | 15 hr |
| Nov 25, 4:27 PM CST | Severe Thunderstorm Warning | OHX | 48 min |
| Dec 11, 4:07 AM CST | Winter Weather Advisory | OHX | 54 hr |
| Dec 12, 3:49 AM CST | Wind Chill Advisory | OHX | 32 hr |
| Dec 14, 4:41 AM CST | Winter Storm Watch | OHX | 12 hr |
| Dec 14, 4:09 PM CST | Winter Storm Warning | OHX | 36 hr |
| Dec 15, 6:18 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 24, 4:10 AM CST | Winter Weather Advisory | OHX | 67 hr |
| Dec 25, 2:36 PM CST | Winter Weather Advisory | OHX | 33 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
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.