Alert archive / Georgia / Tattnall County
Weather alerts in Tattnall County, Georgia, 2020
66 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Tattnall County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 66
- Warnings
- 13
- Watches
- 9
- Advisories
- 19
- Busiest month
- April15 alerts
- Busiest day
- February 6, 20206 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Tattnall County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 5 | 0% | 2 | 100% | 18 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 20 | 10 | 50% | 19 | 89% | 12 min |
| NWS Charleston, SC: severe thunderstorm warnings | 72 | 50 | 31% | 301 | 69% | 27 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 12, 7:22 PM EST | Dense Fog Advisory | CHS | 15 hr |
| Jan 13, 9:20 PM EST | Dense Fog Advisory | CHS | 9 hr |
| Feb 1, 9:50 AM EST | River Flood Warning | CHS | 66 hr |
| Feb 5, 8:54 PM EST | River Flood Warning | CHS | 43 days |
| Feb 6, 8:27 AM EST | River Flood Warning | JAX | 47 days |
| Feb 6, 11:45 AM EST | Mesoscale Discussion | SPC | 90 min |
| Feb 6, 12:17 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 6, 2:32 PM EST | Mesoscale Discussion | SPC | 58 min |
| Feb 6, 4:29 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 6, 7:32 PM EST | Mesoscale Discussion | SPC | 118 min |
| Feb 7, 3:48 AM EST | Wind Advisory | CHS | 11 hr |
| Feb 13, 1:30 PM EST | Special Weather Statement | CHS | 45 min |
| Feb 13, 3:15 PM EST | Special Weather Statement | CHS | 30 min |
| Feb 29, 2:25 AM EST | Freeze Watch | CHS | 13 hr |
| Feb 29, 3:12 PM EST | Freeze Warning | CHS | 17 hr |
| Mar 3, 3:48 PM EST | Flash Flood Watch | CHS | 51 hr |
| Mar 4, 10:07 AM EST | Special Weather Statement | CHS | 23 min |
| Mar 4, 10:28 AM EST | Special Weather Statement | CHS | 32 min |
| Mar 4, 4:48 PM EST | Special Weather Statement | CHS | 27 min |
| Mar 4, 5:49 PM EST | Areal Flood Advisory | CHS | 116 min |
| Mar 4, 6:53 PM EST | Special Weather Statement | CHS | 52 min |
| Mar 4, 7:43 PM EST | Areal Flood Advisory | CHS | 92 min |
| Mar 4, 8:25 PM EST | Areal Flood Advisory | CHS | 50 min |
| Mar 4, 9:14 PM EST | Areal Flood Advisory | CHS | 91 min |
| Mar 5, 10:37 AM EST | Areal Flood Advisory | CHS | 3 hr |
| Mar 6, 3:10 PM EST | Freeze Watch | CHS | 24 hr |
| Mar 7, 3:08 PM EST | Frost Advisory | CHS | 17 hr |
| Mar 31, 2:22 PM EDT | Tornado Watch | SPC | 6 hr |
| Mar 31, 9:01 PM EDT | River Flood Warning | JAX | 6 days |
| Apr 6, 5:26 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| Apr 8, 8:18 PM EDT | Severe Thunderstorm Warning | CHS | 44 min |
| Apr 13, 3:20 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 5:33 AM EDT | Severe Thunderstorm Warning | CHS | 57 min |
| Apr 13, 6:29 AM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Apr 13, 7:15 AM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Apr 19, 8:47 AM EDT | River Flood Warning | JAX | 23 days |
| Apr 19, 9:33 AM EDT | River Flood Warning | CHS | 16 days |
| Apr 19, 7:26 PM EDT | Flash Flood Watch | CHS | 11 hr |
| Apr 19, 8:09 PM EDT | Areal Flood Advisory | CHS | 2 hr |
| Apr 20, 1:52 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 20, 2:19 AM EDT | Tornado Watch | SPC | 9 hr |
| Apr 23, 10:29 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 23, 10:52 AM EDT | Tornado Watch | SPC | 6 hr |
| May 20, 10:12 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 9:38 PM EDT | Special Weather Statement | CHS | 52 min |
| May 22, 9:46 PM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Jun 8, 7:07 PM EDT | Special Weather Statement | CHS | 38 min |
| Jun 24, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 25, 7:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jun 27, 8:07 PM EDT | Special Weather Statement | CHS | 38 min |
| Jul 27, 7:50 PM EDT | Areal Flood Advisory | CHS | 85 min |
| Aug 4, 4:51 PM EDT | Special Weather Statement | CHS | 24 min |
| Aug 6, 5:32 PM EDT | Special Weather Statement | CHS | 43 min |
| Aug 8, 3:34 PM EDT | Special Weather Statement | CHS | 41 min |
| Aug 11, 9:26 PM EDT | Special Weather Statement | CHS | 34 min |
| Aug 20, 4:22 PM EDT | Special Weather Statement | CHS | 23 min |
| Aug 26, 8:15 PM EDT | Special Weather Statement | CHS | 30 min |
| Sep 23, 9:21 AM EDT | River Flood Warning | JAX | 8 days |
| Sep 26, 5:39 AM EDT | Dense Fog Advisory | CHS | 109 min |
| Sep 29, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 7, 4:44 AM EDT | Dense Fog Advisory | CHS | 5 hr |
| Oct 8, 4:20 AM EDT | Dense Fog Advisory | CHS | 5 hr |
| Oct 9, 3:04 AM EDT | Dense Fog Advisory | CHS | 6 hr |
| Nov 2, 3:30 AM EST | Frost Advisory | CHS | 28 hr |
| Nov 18, 3:32 PM EST | Frost Advisory | CHS | 16 hr |
| Nov 23, 12:52 AM EST | Dense Fog Advisory | CHS | 5 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 | 5 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 15 |
| Flooding | |
| River Flood Warning | 7 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 7 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 2 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.