Alert archive / Georgia / Tattnall County
Weather alerts in Tattnall County, Georgia, 2009
153 weather alerts in 2009, 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 2009. Tap one for its archive.
- Alerts
- 153
- Warnings
- 46
- Watches
- 29
- Advisories
- 39
- Busiest month
- June27 alerts
- Busiest day
- June 18, 20099 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 4 tornado warnings covering Tattnall County in 2009 had a tornado report inside them.
Tattnall County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 0 | ||
| Severe thunderstorm warnings | 31 | 14 | 55% | 7 | 71% | 19 min |
| Flash flood warnings | 3 | 3 | 0% | 3 | 100% | 36 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Charleston, SC: tornado warnings | 27 | 4 | 85% | 9 | 78% | 10 min |
| NWS Charleston, SC: severe thunderstorm warnings | 305 | 162 | 47% | 321 | 84% | 20 min |
| NWS Charleston, SC: flash flood warnings | 20 | 14 | 30% | 43 | 91% | 59 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 3, 10:01 PM EST | Dense Fog Advisory | CHS | 13 hr |
| Jan 4, 11:30 PM EST | Dense Fog Advisory | CHS | 11 hr |
| Jan 7, 3:40 AM EST | Wind Advisory | CHS | 15 hr |
| Jan 7, 4:29 AM EST | Mesoscale Discussion | SPC | 91 min |
| Jan 15, 4:03 AM EST | Wind Chill Advisory | CHS | 29 hr |
| Jan 18, 9:25 PM EST | Dense Fog Advisory | CHS | 11 hr |
| Jan 26, 3:38 PM EST | Dense Fog Advisory | CHS | 18 hr |
| Jan 27, 4:37 PM EST | Dense Fog Advisory | CHS | 14 hr |
| Feb 18, 8:02 PM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Feb 18, 11:55 PM EST | Mesoscale Discussion | SPC | 95 min |
| Feb 19, 2:03 AM EST | Severe Thunderstorm Warning | CHS | 29 min |
| Feb 19, 2:20 AM EST | Mesoscale Discussion | SPC | 25 min |
| Feb 19, 2:44 AM EST | Tornado Watch | SPC | 3 hr |
| Feb 21, 1:29 PM EST | Fire Weather Watch | CHS | 10 hr |
| Feb 21, 11:50 PM EST | Red Flag Warning | CHS | 18 hr |
| Feb 28, 11:39 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 28, 1:50 PM EST | Mesoscale Discussion | SPC | 85 min |
| Feb 28, 6:43 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 28, 9:48 PM EST | Mesoscale Discussion | SPC | 57 min |
| Mar 1, 1:51 AM EST | Severe Thunderstorm Warning | CHS | 54 min |
| Mar 1, 1:55 AM EST | Mesoscale Discussion | SPC | 95 min |
| Mar 1, 4:50 AM EST | Severe Thunderstorm Warning | CHS | 40 min |
| Mar 1, 6:17 AM EST | Mesoscale Discussion | SPC | 118 min |
| Mar 14, 3:36 PM EDT | Dense Fog Advisory | CHS | 19 hr |
| Mar 28, 11:51 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Mar 28, 12:47 PM EDT | Tornado Watch | SPC | 7 hr |
| Mar 28, 3:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Mar 28, 4:26 PM EDT | Severe Thunderstorm Warning | CHS | 64 min |
| Mar 28, 6:06 PM EDT | Areal Flood Advisory | CHS | 114 min |
| Mar 28, 8:03 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Mar 28, 9:12 PM EDT | Flash Flood Warning | CHS | 3 hr |
| Mar 28, 11:43 PM EDT | Severe Thunderstorm Warning | CHS | 30 min |
| Mar 29, 12:01 AM EDT | Severe Thunderstorm Warning | CHS | 44 min |
| Mar 29, 12:48 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Apr 1, 3:11 PM EDT | Flash Flood Watch | CHS | 36 hr |
| Apr 2, 11:06 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 2, 1:14 PM EDT | Areal Flood Advisory | CHS | 3 hr |
| Apr 2, 1:39 PM EDT | Flash Flood Warning | CHS | 3 hr |
| Apr 5, 10:29 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 6, 4:02 PM EDT | Freeze Watch | CHS | 24 hr |
| Apr 7, 4:20 AM EDT | Freeze Warning | CHS | 28 hr |
| Apr 10, 11:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 13, 12:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 13, 12:32 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 13, 2:29 PM EDT | Severe Thunderstorm Warning | CHS | 46 min |
| Apr 13, 2:40 PM EDT | Tornado Warning | CHS | 22 min |
| Apr 13, 3:00 PM EDT | Severe Thunderstorm Warning | CHS | 60 min |
| Apr 13, 3:16 PM EDT | Tornado Warning | CHS | 44 min |
| Apr 13, 3:28 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Apr 13, 3:52 PM EDT | Areal Flood Advisory | CHS | 53 min |
| Apr 14, 12:12 AM EDT | River Flood Warning | CHS | 8 days |
| May 4, 11:38 AM EDT | Mesoscale Discussion | SPC | 67 min |
| May 4, 1:02 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 4, 2:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 5, 10:18 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 5, 5:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| May 6, 5:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 11, 3:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 11, 6:09 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| May 11, 7:12 PM EDT | Severe Thunderstorm Warning | CHS | 45 min |
| May 15, 1:06 PM EDT | Areal Flood Advisory | CHS | 107 min |
| May 17, 2:50 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| May 17, 3:01 PM EDT | Flash Flood Watch | CHS | 13 hr |
| May 17, 7:26 PM EDT | Areal Flood Advisory | CHS | 94 min |
| May 23, 9:22 AM EDT | Flash Flood Watch | CHS | 13 hr |
| May 24, 9:24 PM EDT | Areal Flood Advisory | CHS | 66 min |
| May 24, 10:22 PM EDT | Areal Flood Advisory | CHS | 83 min |
| May 25, 10:03 PM EDT | River Flood Warning | CHS | 7 days |
| May 26, 5:44 AM EDT | Dense Fog Advisory | CHS | 4 hr |
| May 29, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 29, 2:55 PM EDT | Severe Thunderstorm Warning | CHS | 65 min |
| May 29, 3:59 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jun 4, 11:51 AM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 5, 5:21 PM EDT | Areal Flood Advisory | CHS | 51 min |
| Jun 11, 5:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 11, 6:20 PM EDT | Severe Thunderstorm Warning | CHS | 55 min |
| Jun 12, 4:49 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 4:16 PM EDT | Heat Advisory | CHS | 24 hr |
| Jun 18, 1:21 AM EDT | Mesoscale Discussion | SPC | 24 min |
| Jun 18, 1:39 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 3:24 AM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| Jun 18, 3:45 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 4:01 AM EDT | Severe Thunderstorm Warning | CHS | 59 min |
| Jun 18, 4:11 PM EDT | Heat Advisory | CHS | 27 hr |
| Jun 18, 6:02 PM EDT | Mesoscale Discussion | SPC | 28 min |
| Jun 18, 6:22 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 7:29 PM EDT | Severe Thunderstorm Warning | CHS | 61 min |
| Jun 18, 8:10 PM EDT | Severe Thunderstorm Warning | CHS | 65 min |
| Jun 18, 8:24 PM EDT | Severe Thunderstorm Warning | CHS | 66 min |
| Jun 19, 3:28 PM EDT | Heat Advisory | CHS | 29 hr |
| Jun 20, 3:10 PM EDT | Heat Advisory | CHS | 29 hr |
| Jun 22, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 4:24 PM EDT | Severe Thunderstorm Warning | CHS | 29 min |
| Jun 22, 5:05 PM EDT | Severe Thunderstorm Warning | CHS | 25 min |
| Jun 22, 5:29 PM EDT | Severe Thunderstorm Warning | CHS | 31 min |
| Jun 22, 8:07 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jun 28, 4:00 AM EDT | Heat Advisory | CHS | 16 hr |
| Jun 29, 3:36 AM EDT | Heat Advisory | CHS | 15 hr |
| Jun 29, 5:19 PM EDT | Severe Thunderstorm Warning | CHS | 56 min |
| Jul 2, 2:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 7, 4:57 PM EDT | Areal Flood Advisory | CHS | 66 min |
| Jul 7, 5:51 PM EDT | Areal Flood Advisory | CHS | 39 min |
| Jul 7, 6:11 PM EDT | Areal Flood Advisory | CHS | 34 min |
| Jul 7, 6:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jul 7, 6:52 PM EDT | Areal Flood Advisory | CHS | 46 min |
| Jul 8, 4:38 AM EDT | Flash Flood Watch | CHS | 39 hr |
| Jul 27, 4:28 PM EDT | Severe Thunderstorm Warning | CHS | 42 min |
| Jul 31, 3:43 PM EDT | Severe Thunderstorm Warning | CHS | 62 min |
| Jul 31, 4:10 PM EDT | Severe Thunderstorm Warning | CHS | 65 min |
| Aug 11, 2:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 12, 11:25 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 12:23 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 13, 3:26 AM EDT | Flash Flood Watch | CHS | 36 hr |
| Aug 21, 5:21 PM EDT | Severe Thunderstorm Warning | CHS | 27 min |
| Aug 28, 1:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Aug 30, 1:52 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Sep 24, 9:38 PM EDT | Dense Fog Advisory | CHS | 9 hr |
| Oct 12, 3:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Oct 12, 6:58 PM EDT | Areal Flood Advisory | CHS | 70 min |
| Oct 15, 8:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Oct 18, 3:18 PM EDT | Frost Advisory | CHS | 17 hr |
| Oct 19, 3:28 PM EDT | Frost Advisory | CHS | 18 hr |
| Oct 27, 5:36 PM EDT | Tornado Warning | CHS | 39 min |
| Nov 6, 2:54 AM EST | Frost Advisory | CHS | 29 hr |
| Nov 19, 2:29 AM EST | Dense Fog Advisory | CHS | 4 hr |
| Nov 26, 12:21 AM EST | Dense Fog Advisory | CHS | 9 hr |
| Nov 27, 4:02 AM EST | Frost Advisory | CHS | 29 hr |
| Dec 2, 9:52 AM EST | Mesoscale Discussion | SPC | 83 min |
| Dec 2, 12:48 PM EST | Mesoscale Discussion | SPC | 117 min |
| Dec 2, 1:31 PM EST | Mesoscale Discussion | SPC | 89 min |
| Dec 2, 2:08 PM EST | Tornado Watch | SPC | 8 hr |
| Dec 2, 3:26 PM EST | Severe Thunderstorm Warning | CHS | 49 min |
| Dec 2, 3:36 PM EST | Severe Thunderstorm Warning | CHS | 39 min |
| Dec 2, 3:59 PM EST | Tornado Warning | CHS | 46 min |
| Dec 2, 5:44 PM EST | Mesoscale Discussion | SPC | 91 min |
| Dec 5, 4:04 AM EST | Frost Advisory | CHS | 29 hr |
| Dec 5, 5:26 PM EST | Freeze Warning | CHS | 16 hr |
| Dec 9, 8:15 AM EST | Mesoscale Discussion | SPC | 60 min |
| Dec 9, 1:49 PM EST | Severe Thunderstorm Warning | CHS | 41 min |
| Dec 10, 4:28 AM EST | Freeze Watch | CHS | 12 hr |
| Dec 10, 4:35 PM EST | Freeze Warning | CHS | 16 hr |
| Dec 13, 4:46 AM EST | River Flood Warning | CHS | 6 days |
| Dec 13, 9:44 AM EST | Flash Flood Watch | CHS | 4 hr |
| Dec 13, 9:05 PM EST | Dense Fog Advisory | CHS | 15 hr |
| Dec 14, 8:18 PM EST | Flash Flood Watch | CHS | 14 hr |
| Dec 14, 8:30 PM EST | Areal Flood Advisory | CHS | 3 hr |
| Dec 14, 9:39 PM EST | Flash Flood Warning | CHS | 3 hr |
| Dec 17, 3:16 PM EST | Flash Flood Watch | CHS | 30 hr |
| Dec 19, 3:35 PM EST | Freeze Watch | CHS | 24 hr |
| Dec 20, 3:47 PM EST | Freeze Warning | CHS | 17 hr |
| Dec 25, 4:41 AM EST | Mesoscale Discussion | SPC | 64 min |
| Dec 25, 5:01 AM EST | Tornado Watch | SPC | 9 hr |
| Dec 25, 7:27 AM EST | Mesoscale Discussion | SPC | 93 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 | 31 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 7 |
| Mesoscale Discussion | 39 |
| Flooding | |
| Flash Flood Warning | 3 |
| River Flood Warning | 3 |
| Flash Flood Watch | 8 |
| Areal Flood Advisory | 15 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 5 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.