Alert archive / Georgia / Rockdale County
Weather alerts in Rockdale County, Georgia, 2011
135 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Rockdale County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 135
- Warnings
- 14
- Watches
- 26
- Advisories
- 36
- Busiest month
- April31 alerts
- Busiest day
- September 5, 20116 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 Rockdale County in 2011 had a tornado report inside them.
Rockdale County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 10 | 7 | 30% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Atlanta, GA: tornado warnings | 108 | 25 | 77% | 75 | 79% | 24 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 523 | 338 | 35% | 961 | 74% | 21 min |
| NWS Atlanta, GA: flash flood warnings | 15 | 7 | 53% | 17 | 94% | 85 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 7, 1:29 PM EST | Wind Advisory | FFC | 6 hr |
| Jan 7, 4:01 PM EST | Winter Storm Watch | FFC | 37 hr |
| Jan 8, 3:42 AM EST | Wind Advisory | FFC | 15 hr |
| Jan 9, 4:57 AM EST | Winter Storm Warning | FFC | 34 hr |
| Jan 9, 9:27 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 10, 3:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 10, 2:53 PM EST | Freezing Rain Advisory | FFC | 21 hr |
| Jan 26, 8:53 AM EST | Wind Advisory | FFC | 9 hr |
| Feb 1, 3:29 AM EST | Wind Advisory | FFC | 36 hr |
| Feb 3, 1:55 PM EST | Flood Watch | FFC | 37 hr |
| Feb 9, 4:20 AM EST | Winter Weather Advisory | FFC | 26 hr |
| Feb 17, 8:10 AM EST | Dense Fog Advisory | FFC | 110 min |
| Feb 25, 2:35 AM EST | Mesoscale Discussion | SPC | 55 min |
| Feb 25, 3:19 AM EST | Wind Advisory | FFC | 13 hr |
| Feb 28, 4:04 AM EST | Wind Advisory | FFC | 15 hr |
| Feb 28, 1:29 PM EST | Tornado Watch | SPC | 7 hr |
| Feb 28, 4:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Feb 28, 6:12 PM EST | Severe Thunderstorm Warning | FFC | 33 min |
| Mar 6, 1:25 AM EST | Wind Advisory | FFC | 15 hr |
| Mar 6, 4:57 AM EST | Frost Advisory | FFC | 24 hr |
| Mar 9, 3:17 PM EST | Wind Advisory | FFC | 28 hr |
| Mar 11, 3:35 AM EST | Freeze Watch | FFC | 12 hr |
| Mar 11, 3:55 PM EST | Freeze Warning | FFC | 16 hr |
| Mar 23, 11:17 AM EDT | Wind Advisory | FFC | 8 hr |
| Mar 26, 3:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 26, 8:47 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 26, 11:13 PM EDT | Severe Thunderstorm Warning | FFC | 47 min |
| Mar 27, 12:21 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 1, 4:24 PM EDT | Wind Advisory | FFC | 28 hr |
| Apr 3, 2:50 PM EDT | Wind Advisory | FFC | 53 hr |
| Apr 4, 5:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Apr 4, 10:28 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 4, 11:52 PM EDT | Severe Thunderstorm Warning | FFC | 38 min |
| Apr 5, 12:28 AM EDT | Severe Thunderstorm Warning | FFC | 47 min |
| Apr 5, 3:25 PM EDT | Frost Advisory | FFC | 18 hr |
| Apr 8, 3:31 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Apr 10, 3:23 PM EDT | Wind Advisory | FFC | 31 hr |
| Apr 11, 7:42 PM EDT | Mesoscale Discussion | SPC | 33 min |
| Apr 11, 8:08 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 11, 9:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 12, 4:28 AM EDT | Wind Advisory | FFC | 16 hr |
| Apr 15, 5:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 15, 5:46 PM EDT | Tornado Watch | SPC | 3 hr |
| Apr 15, 8:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 15, 9:12 PM EDT | Tornado Watch | SPC | 9 hr |
| Apr 15, 11:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 16, 2:38 AM EDT | Severe Thunderstorm Warning | FFC | 52 min |
| Apr 16, 3:35 AM EDT | Wind Advisory | FFC | 16 hr |
| Apr 20, 6:39 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 20, 7:55 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 21, 2:05 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 21, 2:32 AM EDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Apr 26, 2:41 PM EDT | Wind Advisory | FFC | 30 hr |
| Apr 27, 7:48 AM EDT | Tornado Watch | SPC | 2 hr |
| Apr 27, 6:41 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Apr 27, 6:52 PM EDT | Tornado Watch | SPC | 9 hr |
| Apr 28, 12:09 AM EDT | Mesoscale Discussion | SPC | 36 min |
| Apr 28, 12:38 AM EDT | Tornado Warning | FFC | 52 min |
| Apr 28, 12:56 AM EDT | Tornado Watch | SPC | 4 hr |
| May 26, 3:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 26, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 26, 5:25 PM EDT | Special Weather Statement | FFC | 35 min |
| May 26, 6:26 PM EDT | Special Weather Statement | FFC | 34 min |
| Jun 3, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 5:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 9, 4:56 PM EDT | Severe Thunderstorm Warning | FFC | 35 min |
| Jun 11, 1:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 15, 7:35 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 15, 7:53 PM EDT | Severe Thunderstorm Warning | FFC | 67 min |
| Jun 15, 10:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 18, 3:55 PM EDT | Mesoscale Discussion | SPC | 35 min |
| Jun 18, 4:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 5:50 PM EDT | Severe Thunderstorm Warning | FFC | 25 min |
| Jun 18, 6:23 PM EDT | Special Weather Statement | FFC | 37 min |
| Jun 18, 6:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 22, 3:51 PM EDT | Special Weather Statement | FFC | 39 min |
| Jun 22, 4:13 PM EDT | Severe Thunderstorm Warning | FFC | 62 min |
| Jun 24, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 24, 6:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jun 26, 11:34 AM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 26, 1:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 4:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 26, 6:29 PM EDT | Mesoscale Discussion | SPC | 46 min |
| Jun 26, 7:10 PM EDT | Severe Thunderstorm Warning | FFC | 35 min |
| Jun 26, 8:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 27, 2:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 3:19 PM EDT | Special Weather Statement | FFC | 41 min |
| Jul 4, 3:46 PM EDT | Special Weather Statement | FFC | 44 min |
| Jul 6, 1:30 PM EDT | Special Weather Statement | FFC | 45 min |
| Jul 8, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 11, 3:56 PM EDT | Heat Advisory | FFC | 36 hr |
| Jul 12, 1:50 PM EDT | Special Weather Statement | FFC | 40 min |
| Jul 12, 2:11 PM EDT | Special Weather Statement | FFC | 34 min |
| Jul 12, 3:08 PM EDT | Heat Advisory | FFC | 37 hr |
| Jul 25, 7:27 PM EDT | Special Weather Statement | FFC | 33 min |
| Jul 25, 7:35 PM EDT | Special Weather Statement | FFC | 25 min |
| Aug 2, 4:11 AM EDT | Heat Advisory | FFC | 64 hr |
| Aug 4, 2:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 4, 2:41 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Aug 5, 8:03 PM EDT | Special Weather Statement | FFC | 27 min |
| Aug 8, 8:17 PM EDT | Special Weather Statement | FFC | 28 min |
| Aug 14, 1:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Sep 4, 4:20 AM EDT | Flash Flood Watch | FFC | 53 hr |
| Sep 5, 8:24 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Sep 5, 12:01 PM EDT | Mesoscale Discussion | SPC | 29 min |
| Sep 5, 12:10 PM EDT | Tornado Watch | SPC | 4 hr |
| Sep 5, 3:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Sep 5, 3:42 PM EDT | Tornado Watch | SPC | 7 hr |
| Sep 5, 7:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Oct 13, 8:06 PM EDT | Special Weather Statement | FFC | 39 min |
| Oct 20, 4:17 AM EDT | Frost Advisory | FFC | 30 hr |
| Oct 21, 4:03 AM EDT | Frost Advisory | FFC | 30 hr |
| Oct 22, 3:37 AM EDT | Frost Advisory | FFC | 30 hr |
| Oct 29, 3:14 PM EDT | Frost Advisory | FFC | 19 hr |
| Oct 30, 3:53 PM EDT | Frost Advisory | FFC | 17 hr |
| Oct 31, 2:46 PM EDT | Frost Advisory | FFC | 18 hr |
| Nov 10, 4:41 AM EST | Freeze Warning | FFC | 27 hr |
| Nov 10, 4:41 AM EST | Wind Advisory | FFC | 12 hr |
| Nov 16, 10:46 AM EST | Tornado Watch | SPC | 7 hr |
| Nov 16, 1:17 PM EST | Mesoscale Discussion | SPC | 118 min |
| Nov 21, 7:34 AM EST | Dense Fog Advisory | FFC | 2 hr |
| Nov 22, 4:24 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 22, 6:15 PM EST | Tornado Watch | SPC | 5 hr |
| Nov 22, 7:57 PM EST | Mesoscale Discussion | SPC | 93 min |
| Nov 22, 8:00 PM EST | Special Weather Statement | FFC | 30 min |
| Nov 22, 8:28 PM EST | Special Weather Statement | FFC | 32 min |
| Nov 27, 10:00 AM EST | Wind Advisory | FFC | 6 hr |
| Dec 7, 2:45 AM EST | Wind Advisory | FFC | 17 hr |
| Dec 21, 9:11 PM EST | Dense Fog Advisory | FFC | 11 hr |
| Dec 22, 8:04 AM EST | Dense Fog Advisory | FFC | 116 min |
| Dec 22, 2:02 PM EST | Mesoscale Discussion | SPC | 118 min |
| Dec 22, 3:20 PM EST | Tornado Watch | SPC | 6 hr |
| Dec 22, 6:25 PM EST | Mesoscale Discussion | SPC | 95 min |
| Dec 27, 3:24 AM EST | Wind Advisory | FFC | 14 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 | 10 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 14 |
| Mesoscale Discussion | 43 |
| Special Weather Statement | 16 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 19 |
| 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 archive20102012
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.