Alert archive / Georgia / Screven County
Weather alerts in Screven County, Georgia, 2017
97 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 97
- Warnings
- 23
- Watches
- 13
- Advisories
- 20
- Busiest month
- January17 alerts
- Busiest day
- April 5, 20178 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 3 tornado warnings covering Screven County in 2017 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 11 minutes after it went out.
Screven County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 3 | 67% | 11 min |
| Severe thunderstorm warnings | 12 | 11 | 8% | 9 | 100% | 23 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 35 | 10 | 71% | 25 | 64% | 9 min |
| NWS Charleston, SC: severe thunderstorm warnings | 102 | 64 | 37% | 213 | 67% | 21 min |
| NWS Charleston, SC: flash flood warnings | 10 | 5 | 50% | 6 | 100% | 247 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 2, 5:16 PM EST | Special Weather Statement | CHS | 29 min |
| Jan 2, 5:20 PM EST | Severe Thunderstorm Warning | CHS | 40 min |
| Jan 3, 12:10 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Jan 3, 12:49 AM EST | Special Weather Statement | CHS | 41 min |
| Jan 7, 8:15 PM EST | River Flood Warning | CHS | 5 days |
| Jan 17, 3:20 AM EST | Dense Fog Advisory | CHS | 8 hr |
| Jan 21, 1:06 PM EST | Mesoscale Discussion | SPC | 114 min |
| Jan 21, 1:51 PM EST | Tornado Watch | SPC | 4 hr |
| Jan 21, 2:13 PM EST | Severe Thunderstorm Warning | CHS | 62 min |
| Jan 21, 2:21 PM EST | Tornado Warning | CHS | 24 min |
| Jan 21, 2:58 PM EST | Tornado Warning | CHS | 32 min |
| Jan 21, 3:06 PM EST | Severe Thunderstorm Warning | CHS | 54 min |
| Jan 21, 3:06 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 22, 4:02 PM EST | Mesoscale Discussion | SPC | 88 min |
| Jan 22, 4:25 PM EST | Tornado Watch | SPC | 3 hr |
| Jan 22, 6:58 PM EST | Mesoscale Discussion | SPC | 92 min |
| Jan 26, 8:22 PM EST | River Flood Warning | CHS | 4 days |
| Feb 9, 3:10 AM EST | Special Weather Statement | CHS | 50 min |
| Feb 9, 3:12 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 10:19 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 4, 3:15 PM EST | Frost Advisory | CHS | 18 hr |
| Mar 13, 3:45 PM EDT | Freeze Watch | CHS | 12 hr |
| Mar 14, 3:25 AM EDT | Freeze Warning | CHS | 30 hr |
| Mar 15, 10:14 AM EDT | Freeze Warning | CHS | 24 hr |
| Mar 16, 10:53 AM EDT | Freeze Warning | CHS | 23 hr |
| Mar 21, 7:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Mar 21, 8:35 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 21, 11:07 PM EDT | Special Weather Statement | CHS | 38 min |
| Mar 21, 11:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Mar 21, 11:31 PM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Mar 21, 11:57 PM EDT | Severe Thunderstorm Warning | CHS | 33 min |
| Apr 3, 10:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 3, 1:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Apr 3, 2:07 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 3, 3:44 PM EDT | Severe Thunderstorm Warning | CHS | 50 min |
| Apr 3, 4:13 PM EDT | Severe Thunderstorm Warning | CHS | 47 min |
| Apr 3, 4:18 PM EDT | Severe Thunderstorm Warning | CHS | 31 min |
| Apr 5, 10:43 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 11:38 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 5, 12:54 PM EDT | Tornado Watch | SPC | 10 hr |
| Apr 5, 2:44 PM EDT | Wind Advisory | CHS | 29 hr |
| Apr 5, 3:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 5, 4:33 PM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Apr 5, 4:50 PM EDT | Tornado Warning | CHS | 40 min |
| Apr 5, 5:27 PM EDT | Severe Thunderstorm Warning | CHS | 63 min |
| Apr 23, 10:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 12:48 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 2:19 PM EDT | Severe Thunderstorm Warning | CHS | 39 min |
| May 23, 3:34 AM EDT | Flash Flood Watch | CHS | 20 hr |
| May 23, 2:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| May 23, 2:45 PM EDT | Tornado Watch | SPC | 8 hr |
| May 23, 4:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 23, 8:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 24, 8:29 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 24, 11:03 AM EDT | Tornado Watch | SPC | 10 hr |
| May 24, 2:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| May 24, 5:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 24, 10:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 24, 11:59 PM EDT | Special Weather Statement | CHS | 31 min |
| May 25, 12:34 AM EDT | Special Weather Statement | CHS | 26 min |
| May 31, 4:14 PM EDT | Special Weather Statement | CHS | 46 min |
| Jun 6, 4:08 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Jun 6, 4:12 PM EDT | Areal Flood Advisory | CHS | 93 min |
| Jun 17, 7:54 PM EDT | Special Weather Statement | CHS | 51 min |
| Jun 30, 5:51 PM EDT | Special Weather Statement | CHS | 39 min |
| Jul 8, 8:01 PM EDT | Special Weather Statement | CHS | 44 min |
| Jul 8, 8:19 PM EDT | Severe Thunderstorm Warning | CHS | 41 min |
| Jul 15, 1:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 16, 2:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 8:03 PM EDT | Special Weather Statement | CHS | 27 min |
| Aug 17, 3:09 AM EDT | Heat Advisory | CHS | 10 hr |
| Aug 23, 3:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 31, 1:02 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 3:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 9, 4:37 AM EDT | Tropical Storm Watch | CHS | 13 hr |
| Sep 9, 10:37 AM EDT | Tropical Storm Warning | CHS | 61 hr |
| Sep 9, 3:31 PM EDT | Flash Flood Watch | CHS | 58 hr |
| Sep 11, 9:31 AM EDT | Areal Flood Advisory | CHS | 119 min |
| Sep 11, 10:44 AM EDT | Flash Flood Warning | CHS | 7 hr |
| Sep 11, 11:44 AM EDT | Areal Flood Advisory | CHS | 2 hr |
| Sep 11, 11:51 AM EDT | Areal Flood Advisory | CHS | 114 min |
| Sep 11, 1:46 PM EDT | Tornado Watch | SPC | 10 hr |
| Sep 11, 5:16 PM EDT | Areal Flood Warning | CHS | 7 hr |
| Oct 8, 2:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 15, 6:22 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| Oct 23, 2:00 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 23, 5:07 PM EDT | Special Weather Statement | CHS | 23 min |
| Nov 5, 2:18 AM EST | Dense Fog Advisory | CHS | 8 hr |
| Nov 5, 8:57 PM EST | Dense Fog Advisory | CHS | 13 hr |
| Nov 19, 2:33 PM EST | Frost Advisory | CHS | 18 hr |
| Nov 22, 1:49 AM EST | Dense Fog Advisory | CHS | 8 hr |
| Nov 24, 9:30 PM EST | Frost Advisory | CHS | 12 hr |
| Nov 26, 3:33 PM EST | Frost Advisory | CHS | 17 hr |
| Nov 27, 3:52 PM EST | Frost Advisory | CHS | 15 hr |
| Dec 5, 5:06 AM EST | Dense Fog Advisory | CHS | 5 hr |
| Dec 19, 7:15 AM EST | Dense Fog Advisory | CHS | 2 hr |
| Dec 20, 5:38 AM EST | Dense Fog Advisory | CHS | 6 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 | 12 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 29 |
| Special Weather Statement | 12 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| River Flood Warning | 2 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 5 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.