Alert archive / Georgia / Coweta County
Weather alerts in Coweta County, Georgia, 2012
131 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Coweta County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 131
- Warnings
- 13
- Watches
- 11
- Advisories
- 27
- Busiest month
- January22 alerts
- Busiest day
- January 21, 201210 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 2 tornado warnings covering Coweta County in 2012 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 36 minutes after it went out.
Coweta County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 100% | 36 min |
| Severe thunderstorm warnings | 6 | 3 | 50% | 3 | 33% | 12 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Atlanta, GA: tornado warnings | 28 | 9 | 68% | 16 | 75% | 22 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 350 | 215 | 39% | 421 | 75% | 15 min |
| NWS Atlanta, GA: flash flood warnings | 23 | 9 | 61% | 16 | 81% | 50 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, 2:40 PM EST | Wind Advisory | FFC | 43 hr |
| Jan 8, 6:46 PM EST | Dense Fog Advisory | FFC | 15 hr |
| Jan 10, 4:55 AM EST | Dense Fog Advisory | FFC | 5 hr |
| Jan 11, 5:11 AM EST | Special Weather Statement | FFC | 34 min |
| Jan 11, 2:05 PM EST | Wind Advisory | FFC | 34 hr |
| Jan 21, 2:52 AM EST | Mesoscale Discussion | SPC | 113 min |
| Jan 21, 5:20 AM EST | Mesoscale Discussion | SPC | 55 min |
| Jan 21, 5:55 AM EST | Tornado Watch | SPC | 7 hr |
| Jan 21, 8:22 AM EST | Mesoscale Discussion | SPC | 83 min |
| Jan 21, 11:01 AM EST | Mesoscale Discussion | SPC | 59 min |
| Jan 21, 11:07 AM EST | Flash Flood Watch | FFC | 4 hr |
| Jan 21, 11:34 AM EST | Tornado Warning | FFC | 41 min |
| Jan 21, 12:16 PM EST | Tornado Warning | FFC | 28 min |
| Jan 21, 12:28 PM EST | Tornado Watch | SPC | 8 hr |
| Jan 21, 2:57 PM EST | Mesoscale Discussion | SPC | 63 min |
| Jan 21, 9:11 PM EST | Dense Fog Advisory | FFC | 13 hr |
| Jan 23, 7:38 AM EST | Mesoscale Discussion | SPC | 97 min |
| Jan 23, 8:49 AM EST | Tornado Watch | SPC | 5 hr |
| Jan 23, 7:48 PM EST | Dense Fog Advisory | FFC | 13 hr |
| Jan 26, 3:28 AM EST | Dense Fog Advisory | FFC | 6 hr |
| Jan 26, 3:16 PM EST | Mesoscale Discussion | SPC | 119 min |
| Jan 26, 5:33 PM EST | Special Weather Statement | FFC | 27 min |
| Feb 10, 2:29 PM EST | Wind Advisory | FFC | 32 hr |
| Feb 15, 4:54 AM EST | Dense Fog Advisory | FFC | 5 hr |
| Feb 24, 6:56 AM EST | Mesoscale Discussion | SPC | 94 min |
| Feb 24, 8:28 AM EST | Severe Thunderstorm Warning | FFC | 32 min |
| Feb 24, 8:48 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 24, 11:10 AM EST | Special Weather Statement | FFC | 35 min |
| Feb 24, 12:38 PM EST | Special Weather Statement | FFC | 37 min |
| Mar 1, 3:10 AM EST | Special Weather Statement | FFC | 35 min |
| Mar 1, 4:00 AM EST | Mesoscale Discussion | SPC | 90 min |
| Mar 2, 5:37 PM EST | Tornado Watch | SPC | 7 hr |
| Mar 2, 6:41 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 2, 7:01 PM EST | Special Weather Statement | FFC | 44 min |
| Mar 2, 10:54 PM EST | Tornado Watch | SPC | 6 hr |
| Mar 2, 11:07 PM EST | Mesoscale Discussion | SPC | 113 min |
| Mar 3, 12:40 AM EST | Mesoscale Discussion | SPC | 95 min |
| Mar 3, 12:56 AM EST | Severe Thunderstorm Warning | FFC | 11 min |
| Mar 3, 2:10 AM EST | Special Weather Statement | FFC | 20 min |
| Mar 3, 2:25 AM EST | Special Weather Statement | FFC | 50 min |
| Mar 3, 10:19 AM EST | River Flood Warning | FFC | 16 hr |
| Mar 4, 4:15 AM EST | Freeze Watch | FFC | 53 hr |
| Mar 4, 4:15 AM EST | Wind Advisory | FFC | 14 hr |
| Mar 5, 3:55 AM EST | Freeze Warning | FFC | 29 hr |
| Mar 5, 3:55 AM EST | Wind Advisory | FFC | 12 hr |
| Mar 14, 4:23 AM EDT | Dense Fog Advisory | FFC | 6 hr |
| Mar 16, 1:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 16, 2:46 PM EDT | Special Weather Statement | FFC | 29 min |
| Mar 16, 5:05 PM EDT | Special Weather Statement | FFC | 25 min |
| Mar 16, 5:24 PM EDT | Special Weather Statement | FFC | 36 min |
| Apr 5, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 10, 2:58 PM EDT | Red Flag Warning | FFC | 28 hr |
| Apr 11, 2:10 AM EDT | Frost Advisory | FFC | 32 hr |
| Apr 16, 1:56 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 5:22 PM EDT | Special Weather Statement | FFC | 23 min |
| Apr 21, 3:16 PM EDT | Wind Advisory | FFC | 29 hr |
| Apr 23, 4:30 AM EDT | Wind Advisory | FFC | 15 hr |
| Apr 25, 3:40 PM EDT | Wind Advisory | FFC | 28 hr |
| May 3, 4:38 PM EDT | Special Weather Statement | FFC | 22 min |
| May 3, 4:52 PM EDT | Severe Thunderstorm Warning | FFC | 38 min |
| May 3, 5:18 PM EDT | Special Weather Statement | FFC | 27 min |
| May 3, 5:32 PM EDT | Special Weather Statement | FFC | 28 min |
| May 6, 1:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 6, 8:09 PM EDT | Special Weather Statement | FFC | 36 min |
| May 6, 8:54 PM EDT | Special Weather Statement | FFC | 36 min |
| May 20, 7:58 PM EDT | Special Weather Statement | FFC | 32 min |
| May 21, 3:41 PM EDT | Special Weather Statement | FFC | 34 min |
| May 21, 4:14 PM EDT | Special Weather Statement | FFC | 31 min |
| May 30, 12:20 AM EDT | Special Weather Statement | FFC | 40 min |
| May 30, 12:58 AM EDT | Special Weather Statement | FFC | 62 min |
| Jun 3, 5:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 3, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | 115 min |
| Jun 4, 6:33 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 4, 9:38 AM EDT | Special Weather Statement | FFC | 22 min |
| Jun 4, 10:02 AM EDT | Special Weather Statement | FFC | 28 min |
| Jun 5, 1:58 PM EDT | Special Weather Statement | FFC | 32 min |
| Jun 5, 2:28 PM EDT | Special Weather Statement | FFC | 32 min |
| Jun 10, 3:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 29, 3:21 PM EDT | Heat Advisory | FFC | 72 hr |
| Jul 1, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 3, 6:59 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 4, 5:31 PM EDT | Severe Thunderstorm Warning | FFC | 44 min |
| Jul 5, 1:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 7:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 5, 7:35 PM EDT | Special Weather Statement | FFC | 25 min |
| Jul 5, 8:08 PM EDT | Severe Thunderstorm Warning | FFC | 52 min |
| Jul 6, 8:34 PM EDT | Special Weather Statement | FFC | 41 min |
| Jul 10, 8:54 PM EDT | Special Weather Statement | FFC | 51 min |
| Jul 13, 5:15 PM EDT | Special Weather Statement | FFC | 45 min |
| Jul 13, 5:48 PM EDT | Special Weather Statement | FFC | 27 min |
| Jul 16, 2:41 PM EDT | Special Weather Statement | FFC | 34 min |
| Jul 16, 3:05 PM EDT | Special Weather Statement | FFC | 25 min |
| Jul 20, 3:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 1:39 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 4:39 PM EDT | Severe Thunderstorm Warning | FFC | 51 min |
| Aug 1, 4:51 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Aug 9, 1:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 9, 2:25 PM EDT | Special Weather Statement | FFC | 35 min |
| Aug 9, 2:43 PM EDT | Special Weather Statement | FFC | 32 min |
| Aug 9, 3:14 PM EDT | Special Weather Statement | FFC | 31 min |
| Aug 14, 8:50 AM EDT | Special Weather Statement | FFC | 25 min |
| Aug 18, 4:46 PM EDT | Special Weather Statement | FFC | 14 min |
| Aug 22, 2:20 PM EDT | Special Weather Statement | FFC | 25 min |
| Sep 8, 2:03 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 8, 2:04 PM EDT | Special Weather Statement | FFC | 41 min |
| Sep 17, 6:39 PM EDT | Tornado Watch | SPC | 8 hr |
| Sep 17, 8:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 11:33 AM EDT | Special Weather Statement | FFC | 27 min |
| Sep 18, 11:57 AM EDT | Special Weather Statement | FFC | 33 min |
| Sep 21, 7:54 AM EDT | Dense Fog Advisory | FFC | 2 hr |
| Oct 1, 6:51 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Oct 1, 1:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Oct 1, 2:16 PM EDT | Tornado Watch | SPC | 7 hr |
| Oct 1, 4:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 1, 6:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Oct 10, 3:06 AM EDT | Dense Fog Advisory | FFC | 7 hr |
| Oct 28, 11:28 AM EDT | Wind Advisory | FFC | 63 hr |
| Oct 30, 4:04 AM EDT | Freeze Warning | FFC | 11 hr |
| Nov 7, 2:56 PM EST | Frost Advisory | FFC | 18 hr |
| Nov 8, 1:46 PM EST | Freeze Warning | FFC | 19 hr |
| Nov 13, 4:04 AM EST | Frost Advisory | FFC | 26 hr |
| Nov 16, 3:34 PM EST | Frost Advisory | FFC | 16 hr |
| Nov 17, 1:41 PM EST | Frost Advisory | FFC | 19 hr |
| Dec 10, 12:12 PM EST | Special Weather Statement | FFC | 48 min |
| Dec 12, 4:51 PM EST | Special Weather Statement | FFC | 24 min |
| Dec 19, 3:01 PM EST | Wind Advisory | FFC | 64 hr |
| Dec 20, 12:24 PM EST | Mesoscale Discussion | SPC | 66 min |
| Dec 20, 1:13 PM EST | Special Weather Statement | FFC | 77 min |
| Dec 24, 6:23 PM EST | Dense Fog Advisory | FFC | 16 hr |
| Dec 25, 3:08 PM EST | Wind Advisory | FFC | 31 hr |
| Dec 25, 9:50 PM EST | Special Weather Statement | FFC | 25 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 | 6 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 46 |
| Flooding | |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 11 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.