Alert archive / Georgia / Screven County
Weather alerts in Screven County, Georgia, 2011
193 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Screven County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 193
- Warnings
- 56
- Watches
- 19
- Advisories
- 40
- Busiest month
- August38 alerts
- Busiest day
- June 3, 20119 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 Screven County in 2011 had a tornado report inside them.
Screven County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 0 | ||
| Severe thunderstorm warnings | 47 | 35 | 26% | 20 | 90% | 30 min |
| 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 Charleston, SC: tornado warnings | 9 | 2 | 78% | 10 | 90% | 21 min |
| NWS Charleston, SC: severe thunderstorm warnings | 299 | 217 | 27% | 591 | 89% | 26 min |
| NWS Charleston, SC: flash flood warnings | 10 | 4 | 60% | 22 | 86% | 47 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, 1:17 AM EST | Dense Fog Advisory | CHS | 8 hr |
| Jan 9, 4:30 AM EST | Winter Storm Watch | CHS | 12 hr |
| Jan 9, 4:30 AM EST | Winter Weather Advisory | CHS | 55 hr |
| Jan 9, 4:01 PM EST | Winter Storm Warning | CHS | 30 hr |
| Jan 10, 3:06 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 10:43 PM EST | Dense Fog Advisory | CHS | 9 hr |
| Jan 26, 9:48 AM EST | Wind Advisory | CHS | 9 hr |
| Feb 20, 3:35 PM EST | Fire Weather Watch | CHS | 13 hr |
| Feb 21, 4:43 AM EST | Red Flag Warning | CHS | 14 hr |
| Feb 25, 7:01 AM EST | Wind Advisory | CHS | 9 hr |
| Feb 26, 6:04 PM EST | Dense Fog Advisory | CHS | 16 hr |
| Mar 9, 2:21 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 9, 3:31 PM EST | Severe Thunderstorm Warning | CHS | 59 min |
| Mar 9, 4:38 PM EST | Mesoscale Discussion | SPC | 67 min |
| Mar 10, 10:37 AM EST | Special Weather Statement | CHS | 23 min |
| Mar 24, 1:49 AM EDT | Red Flag Warning | CHS | 19 hr |
| Mar 26, 3:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 26, 7:16 PM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Mar 26, 7:25 PM EDT | Tornado Warning | CHS | 50 min |
| Mar 26, 7:40 PM EDT | Tornado Watch | SPC | 4 hr |
| Mar 26, 8:14 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Mar 26, 11:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Mar 27, 3:25 AM EDT | Tornado Watch | SPC | 3 hr |
| Mar 27, 8:33 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Mar 27, 9:55 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 27, 11:47 AM EDT | Special Weather Statement | CHS | 43 min |
| Mar 27, 2:13 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Mar 30, 8:03 AM EDT | Special Weather Statement | CHS | 27 min |
| Mar 30, 8:33 AM EDT | Special Weather Statement | CHS | 42 min |
| Mar 30, 8:48 AM EDT | Special Weather Statement | CHS | 27 min |
| Mar 30, 9:11 AM EDT | Special Weather Statement | CHS | 64 min |
| Mar 30, 10:05 AM EDT | Special Weather Statement | CHS | 55 min |
| Apr 4, 9:26 AM EDT | River Flood Warning | CHS | 64 hr |
| Apr 4, 9:26 AM EDT | River Flood Warning | CHS | 11 days |
| Apr 5, 2:41 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 5, 2:55 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 3:31 AM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Apr 5, 3:58 AM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Apr 9, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 16, 5:57 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 16, 10:39 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 21, 5:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 26, 2:34 PM EDT | Special Weather Statement | CHS | 26 min |
| Apr 28, 4:30 AM EDT | Tornado Watch | SPC | 10 hr |
| Apr 28, 7:27 AM EDT | Severe Thunderstorm Warning | CHS | 63 min |
| Apr 28, 8:05 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 28, 8:48 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 28, 11:22 AM EDT | Mesoscale Discussion | SPC | 53 min |
| Apr 28, 12:30 PM EDT | Special Weather Statement | CHS | 30 min |
| May 10, 4:35 AM EDT | Dense Smoke Advisory | CHS | 4 hr |
| May 13, 7:22 PM EDT | Severe Thunderstorm Warning | CHS | 68 min |
| May 13, 7:47 PM EDT | Severe Thunderstorm Warning | CHS | 58 min |
| May 14, 4:30 PM EDT | Mesoscale Discussion | SPC | 30 min |
| May 14, 4:41 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 14, 4:47 PM EDT | Severe Thunderstorm Warning | CHS | 58 min |
| May 14, 6:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 16, 4:58 PM EDT | Special Weather Statement | CHS | 32 min |
| May 22, 6:53 AM EDT | Dense Fog Advisory | CHS | 2 hr |
| May 26, 9:54 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| May 26, 10:54 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| Jun 2, 11:36 PM EDT | Special Weather Statement | CHS | 24 min |
| Jun 3, 12:10 AM EDT | Severe Thunderstorm Warning | CHS | 65 min |
| Jun 3, 5:26 PM EDT | Special Weather Statement | CHS | 34 min |
| Jun 3, 5:50 PM EDT | Severe Thunderstorm Warning | CHS | 24 min |
| Jun 3, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 3, 6:31 PM EDT | Special Weather Statement | CHS | 29 min |
| Jun 3, 6:41 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Jun 3, 7:18 PM EDT | Special Weather Statement | CHS | 27 min |
| Jun 3, 7:40 PM EDT | Severe Thunderstorm Warning | CHS | 31 min |
| Jun 15, 9:27 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 15, 9:41 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Jun 15, 10:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 15, 10:45 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Jun 18, 6:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 18, 7:20 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 8:52 PM EDT | Severe Thunderstorm Warning | CHS | 53 min |
| Jun 18, 9:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 18, 9:34 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Jun 19, 4:14 AM EDT | Heat Advisory | CHS | 16 hr |
| Jun 20, 3:45 AM EDT | Heat Advisory | CHS | 17 hr |
| Jun 20, 3:45 PM EDT | Heat Advisory | CHS | 27 hr |
| Jun 23, 1:40 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 23, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 28, 1:19 PM EDT | Special Weather Statement | CHS | 41 min |
| Jun 28, 1:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 29, 9:47 PM EDT | Special Weather Statement | CHS | 28 min |
| Jun 30, 2:52 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 5:59 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jul 1, 6:23 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Jul 2, 5:48 PM EDT | Special Weather Statement | CHS | 27 min |
| Jul 5, 8:34 PM EDT | Special Weather Statement | CHS | 26 min |
| Jul 6, 2:43 PM EDT | Special Weather Statement | CHS | 32 min |
| Jul 9, 1:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 9, 8:06 PM EDT | Special Weather Statement | CHS | 24 min |
| Jul 10, 6:12 PM EDT | Special Weather Statement | CHS | 33 min |
| Jul 11, 3:48 AM EDT | Heat Advisory | CHS | 15 hr |
| Jul 11, 4:50 PM EDT | Heat Advisory | CHS | 27 hr |
| Jul 12, 3:33 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 13, 3:38 AM EDT | Excessive Heat Warning | CHS | 17 hr |
| Jul 14, 3:24 AM EDT | Heat Advisory | CHS | 14 hr |
| Jul 14, 4:44 PM EDT | Special Weather Statement | CHS | 46 min |
| Jul 21, 3:12 AM EDT | Heat Advisory | CHS | 16 hr |
| Jul 21, 3:59 PM EDT | Heat Advisory | CHS | 28 hr |
| Jul 22, 3:12 PM EDT | Heat Advisory | CHS | 29 hr |
| Jul 24, 3:29 AM EDT | Heat Advisory | CHS | 16 hr |
| Jul 26, 11:56 AM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 26, 1:15 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Jul 26, 4:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 29, 3:25 AM EDT | Heat Advisory | CHS | 16 hr |
| Jul 29, 3:46 PM EDT | Heat Advisory | CHS | 28 hr |
| Jul 31, 3:29 AM EDT | Heat Advisory | CHS | 16 hr |
| Aug 3, 3:34 AM EDT | Heat Advisory | CHS | 16 hr |
| Aug 3, 3:37 PM EDT | Heat Advisory | CHS | 28 hr |
| Aug 4, 3:20 PM EDT | Heat Advisory | CHS | 28 hr |
| Aug 5, 3:43 PM EDT | Heat Advisory | CHS | 27 hr |
| Aug 6, 4:00 PM EDT | Heat Advisory | CHS | 27 hr |
| Aug 7, 6:53 PM EDT | Heat Advisory | CHS | 25 hr |
| Aug 8, 3:25 PM EDT | Heat Advisory | CHS | 28 hr |
| Aug 8, 6:55 PM EDT | Special Weather Statement | CHS | 35 min |
| Aug 9, 6:11 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Aug 9, 6:22 PM EDT | Severe Thunderstorm Warning | CHS | 53 min |
| Aug 12, 1:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 4:05 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Aug 12, 5:20 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Aug 12, 6:17 PM EDT | Areal Flood Advisory | CHS | 66 min |
| Aug 13, 2:53 PM EDT | Special Weather Statement | CHS | 52 min |
| Aug 13, 3:48 PM EDT | Special Weather Statement | CHS | 42 min |
| Aug 13, 3:59 PM EDT | Special Weather Statement | CHS | 46 min |
| Aug 13, 4:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 13, 4:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Aug 14, 2:24 PM EDT | Mesoscale Discussion | SPC | 36 min |
| Aug 14, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 14, 3:51 PM EDT | Severe Thunderstorm Warning | CHS | 54 min |
| Aug 19, 5:16 PM EDT | Special Weather Statement | CHS | 29 min |
| Aug 19, 5:59 PM EDT | Special Weather Statement | CHS | 31 min |
| Aug 21, 1:19 PM EDT | Special Weather Statement | CHS | 26 min |
| Aug 21, 1:47 PM EDT | Special Weather Statement | CHS | 28 min |
| Aug 21, 2:09 PM EDT | Special Weather Statement | CHS | 51 min |
| Aug 21, 3:16 PM EDT | Special Weather Statement | CHS | 29 min |
| Aug 22, 1:26 PM EDT | Special Weather Statement | CHS | 34 min |
| Aug 22, 1:59 PM EDT | Special Weather Statement | CHS | 31 min |
| Aug 22, 2:02 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Aug 22, 2:05 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Aug 22, 3:11 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Aug 22, 7:13 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Aug 22, 7:59 PM EDT | Special Weather Statement | CHS | 31 min |
| Aug 22, 10:01 PM EDT | Special Weather Statement | CHS | 29 min |
| Aug 29, 6:09 AM EDT | Dense Fog Advisory | CHS | 3 hr |
| Aug 29, 2:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 1:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Sep 5, 4:44 PM EDT | Special Weather Statement | CHS | 31 min |
| Sep 5, 5:08 PM EDT | Severe Thunderstorm Warning | CHS | 67 min |
| Sep 5, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 5, 8:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 6, 10:11 AM EDT | Tornado Watch | SPC | 7 hr |
| Sep 15, 5:30 PM EDT | Special Weather Statement | CHS | 30 min |
| Sep 15, 5:57 PM EDT | Special Weather Statement | CHS | 48 min |
| Sep 20, 3:42 PM EDT | Areal Flood Advisory | CHS | 70 min |
| Sep 20, 4:17 PM EDT | Areal Flood Advisory | CHS | 52 min |
| Sep 25, 6:01 AM EDT | Dense Fog Advisory | CHS | 3 hr |
| Sep 25, 3:15 PM EDT | Severe Thunderstorm Warning | CHS | 45 min |
| Sep 25, 3:18 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Sep 25, 3:24 PM EDT | Tornado Warning | CHS | 51 min |
| Sep 25, 4:02 PM EDT | Severe Thunderstorm Warning | CHS | 58 min |
| Sep 25, 6:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 26, 6:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 27, 4:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Sep 27, 5:31 PM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Sep 27, 6:18 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Sep 27, 6:33 PM EDT | Severe Thunderstorm Warning | CHS | 22 min |
| Sep 27, 11:13 PM EDT | Special Weather Statement | CHS | 32 min |
| Sep 27, 11:57 PM EDT | Special Weather Statement | CHS | 33 min |
| Sep 28, 12:45 AM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Sep 28, 1:16 AM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Oct 13, 5:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Oct 13, 6:55 PM EDT | Severe Thunderstorm Warning | CHS | 50 min |
| Oct 13, 7:44 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Oct 18, 5:42 AM EDT | Dense Fog Advisory | CHS | 3 hr |
| Oct 29, 3:41 AM EDT | Frost Advisory | CHS | 29 hr |
| Nov 10, 4:00 PM EST | Freeze Watch | CHS | 11 hr |
| Nov 11, 3:26 AM EST | Freeze Warning | CHS | 29 hr |
| Nov 15, 5:28 AM EST | Dense Fog Advisory | CHS | 5 hr |
| Nov 16, 1:17 PM EST | Mesoscale Discussion | SPC | 118 min |
| Nov 16, 4:06 PM EST | Mesoscale Discussion | SPC | 114 min |
| Nov 16, 4:30 PM EST | Tornado Watch | SPC | 7 hr |
| Nov 16, 5:39 PM EST | Severe Thunderstorm Warning | CHS | 66 min |
| Nov 16, 6:09 PM EST | Severe Thunderstorm Warning | CHS | 66 min |
| Nov 16, 6:21 PM EST | Severe Thunderstorm Warning | CHS | 54 min |
| Nov 16, 6:48 PM EST | Mesoscale Discussion | SPC | 87 min |
| Nov 16, 8:09 PM EST | Severe Thunderstorm Warning | CHS | 36 min |
| Nov 16, 8:26 PM EST | Severe Thunderstorm Warning | CHS | 64 min |
| Dec 6, 2:16 AM EST | Dense Fog Advisory | CHS | 7 hr |
| Dec 7, 2:12 PM EST | Special Weather Statement | CHS | 48 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 | 47 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 36 |
| Special Weather Statement | 42 |
| Flooding | |
| River Flood Warning | 2 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 21 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Dense Smoke Advisory | 1 |
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.