Alert archive / Georgia / McDuffie County
Weather alerts in McDuffie County, Georgia, 2024
121 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McDuffie County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 121
- Warnings
- 18
- Watches
- 18
- Advisories
- 52
- Busiest month
- July20 alerts
- Busiest day
- January 9, 20246 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
McDuffie County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 11 | 10 | 9% | 2 | 0% | |
| Flash flood warnings | 4 | 3 | 25% | 1 | 0% |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Columbia, SC: tornado warnings | 23 | 13 | 43% | 23 | 61% | 9 min |
| NWS Columbia, SC: severe thunderstorm warnings | 158 | 121 | 23% | 344 | 88% | 23 min |
| NWS Columbia, SC: flash flood warnings | 53 | 40 | 25% | 118 | 92% | 102 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 8, 4:14 AM EST | Wind Advisory | CAE | 49 hr |
| Jan 9, 9:32 AM EST | Mesoscale Discussion | SPC | 88 min |
| Jan 9, 11:25 AM EST | Severe Thunderstorm Warning | CAE | 50 min |
| Jan 9, 11:41 AM EST | Tornado Watch | SPC | 6 hr |
| Jan 9, 11:44 AM EST | Severe Thunderstorm Warning | CAE | 46 min |
| Jan 9, 12:04 PM EST | Areal Flood Advisory | CAE | 3 hr |
| Jan 9, 12:26 PM EST | Severe Thunderstorm Warning | CAE | 64 min |
| Jan 10, 5:07 AM EST | Lake Wind Advisory | CAE | 8 hr |
| Jan 11, 12:23 PM EST | Wind Advisory | CAE | 43 hr |
| Jan 12, 4:54 PM EST | Special Weather Statement | CAE | 36 min |
| Jan 13, 2:12 AM EST | Lake Wind Advisory | CAE | 14 hr |
| Jan 18, 2:04 PM EST | Lake Wind Advisory | CAE | 30 hr |
| Jan 27, 1:49 PM EST | Lake Wind Advisory | CAE | 41 hr |
| Jan 27, 6:27 PM EST | Special Weather Statement | CAE | 33 min |
| Feb 4, 3:38 AM EST | Lake Wind Advisory | CAE | 63 hr |
| Feb 11, 10:44 AM EST | Flood Watch | CAE | 33 hr |
| Feb 12, 2:32 AM EST | Lake Wind Advisory | CAE | 12 hr |
| Feb 12, 2:06 PM EST | Wind Advisory | CAE | 17 hr |
| Feb 12, 2:33 PM EST | Areal Flood Advisory | CAE | 110 min |
| Feb 13, 6:39 AM EST | Lake Wind Advisory | CAE | 5 hr |
| Feb 24, 1:39 PM EST | Lake Wind Advisory | CAE | 9 hr |
| Feb 27, 2:13 PM EST | Lake Wind Advisory | CAE | 38 hr |
| Feb 28, 2:59 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 28, 4:54 PM EST | Severe Thunderstorm Warning | CAE | 81 min |
| Feb 28, 5:46 PM EST | Mesoscale Discussion | SPC | 89 min |
| Feb 28, 6:18 PM EST | Severe Thunderstorm Warning | CAE | 57 min |
| Mar 7, 5:04 AM EST | Dense Fog Advisory | CAE | 4 hr |
| Mar 8, 4:18 PM EST | Flood Watch | CAE | 17 hr |
| Mar 17, 3:55 AM EDT | Freeze Watch | CAE | 24 hr |
| Mar 18, 3:27 AM EDT | Freeze Warning | CAE | 29 hr |
| Mar 18, 3:27 AM EDT | Lake Wind Advisory | CAE | 29 hr |
| Mar 23, 12:48 PM EDT | Lake Wind Advisory | CAE | 19 hr |
| Apr 2, 2:02 PM EDT | Lake Wind Advisory | CAE | 54 hr |
| Apr 3, 1:00 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 3, 3:53 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 10, 2:02 PM EDT | Wind Advisory | CAE | 30 hr |
| Apr 11, 1:40 PM EDT | Lake Wind Advisory | CAE | 18 hr |
| Apr 12, 7:22 AM EDT | Wind Advisory | CAE | 15 hr |
| Apr 19, 4:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 19, 4:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 11:14 AM EDT | Areal Flood Advisory | CAE | 2 hr |
| May 6, 5:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| May 9, 5:45 AM EDT | Tornado Watch | SPC | 9 hr |
| May 9, 5:53 AM EDT | Severe Thunderstorm Warning | CAE | 52 min |
| May 9, 8:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| May 15, 4:16 PM EDT | Special Weather Statement | CAE | 29 min |
| May 24, 1:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 24, 4:05 PM EDT | Special Weather Statement | CAE | 40 min |
| May 24, 6:18 PM EDT | Special Weather Statement | CAE | 42 min |
| May 25, 10:03 AM EDT | Mesoscale Discussion | SPC | 87 min |
| May 25, 12:32 PM EDT | Special Weather Statement | CAE | 58 min |
| May 25, 1:35 PM EDT | Special Weather Statement | CAE | 55 min |
| May 27, 6:13 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 7:13 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 27, 10:02 AM EDT | Mesoscale Discussion | SPC | 88 min |
| May 27, 1:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 6, 3:29 PM EDT | Special Weather Statement | CAE | 46 min |
| Jun 10, 4:41 AM EDT | Special Weather Statement | CAE | 34 min |
| Jun 17, 4:05 PM EDT | Special Weather Statement | CAE | 25 min |
| Jun 29, 12:52 PM EDT | Heat Advisory | CAE | 30 hr |
| Jul 4, 2:05 PM EDT | Heat Advisory | CAE | 30 hr |
| Jul 5, 9:31 PM EDT | Heat Advisory | CAE | 20 hr |
| Jul 6, 4:58 PM EDT | Flash Flood Warning | CAE | 5 hr |
| Jul 6, 5:33 PM EDT | Areal Flood Advisory | CAE | 3 hr |
| Jul 6, 7:19 PM EDT | Areal Flood Advisory | CAE | 4 hr |
| Jul 6, 7:41 PM EDT | Flash Flood Warning | CAE | 2 hr |
| Jul 7, 9:26 PM EDT | Areal Flood Advisory | CAE | 3 hr |
| Jul 7, 10:18 PM EDT | Areal Flood Advisory | CAE | 3 hr |
| Jul 9, 3:26 AM EDT | Heat Advisory | CAE | 17 hr |
| Jul 15, 6:19 PM EDT | Special Weather Statement | CAE | 56 min |
| Jul 15, 6:23 PM EDT | Severe Thunderstorm Warning | CAE | 37 min |
| Jul 16, 3:39 PM EDT | Special Weather Statement | CAE | 51 min |
| Jul 16, 3:57 PM EDT | Severe Thunderstorm Warning | CAE | 48 min |
| Jul 17, 2:40 PM EDT | Severe Thunderstorm Warning | CAE | 35 min |
| Jul 17, 7:07 PM EDT | Special Weather Statement | CAE | 53 min |
| Jul 18, 6:26 PM EDT | Special Weather Statement | CAE | 64 min |
| Jul 23, 10:33 PM EDT | Special Weather Statement | CAE | 42 min |
| Jul 24, 4:19 AM EDT | Flood Watch | CAE | 44 hr |
| Jul 24, 9:32 PM EDT | Areal Flood Advisory | CAE | 3 hr |
| Jul 29, 3:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 2:48 AM EDT | Heat Advisory | CAE | 16 hr |
| Aug 1, 1:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 3:50 AM EDT | Heat Advisory | CAE | 14 hr |
| Aug 3, 2:10 PM EDT | Special Weather Statement | CAE | 50 min |
| Aug 3, 2:23 PM EDT | Severe Thunderstorm Warning | CAE | 37 min |
| Aug 3, 4:44 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Aug 4, 3:49 AM EDT | Flood Watch | CAE | 16 hr |
| Aug 5, 4:19 AM EDT | Flood Watch | CAE | 4 days |
| Aug 8, 4:34 PM EDT | Special Weather Statement | CAE | 56 min |
| Aug 8, 5:13 PM EDT | Areal Flood Advisory | CAE | 80 min |
| Aug 18, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 25, 10:57 AM EDT | Flood Watch | CAE | 46 hr |
| Sep 25, 11:05 AM EDT | Tropical Storm Watch | CAE | 6 hr |
| Sep 25, 5:22 PM EDT | Tropical Storm Warning | CAE | 45 hr |
| Sep 26, 8:12 AM EDT | Areal Flood Advisory | CAE | 2 hr |
| Sep 26, 8:32 AM EDT | Tornado Watch | SPC | 12 hr |
| Sep 26, 1:30 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Sep 26, 2:27 PM EDT | Flash Flood Warning | CAE | 5 hr |
| Sep 26, 8:56 PM EDT | Tornado Watch | SPC | 11 hr |
| Sep 27, 4:38 AM EDT | Flash Flood Warning | CAE | 3 hr |
| Sep 27, 2:09 PM EDT | Wind Advisory | CAE | 5 hr |
| Oct 9, 1:35 PM EDT | Wind Advisory | CAE | 27 hr |
| Nov 6, 3:08 AM EST | Flood Watch | CAE | 32 hr |
| Nov 8, 12:40 AM EST | Dense Fog Advisory | CAE | 8 hr |
| Nov 9, 1:35 AM EST | Dense Fog Advisory | CAE | 5 hr |
| Nov 12, 3:28 AM EST | Lake Wind Advisory | CAE | 28 hr |
| Nov 20, 3:08 AM EST | Lake Wind Advisory | CAE | 54 hr |
| Nov 23, 1:00 PM EST | Frost Advisory | CAE | 19 hr |
| Nov 27, 7:22 PM EST | Lake Wind Advisory | CAE | 21 hr |
| Nov 28, 2:58 AM EST | Freeze Watch | CAE | 22 hr |
| Nov 29, 1:24 AM EST | Freeze Warning | CAE | 32 hr |
| Dec 4, 3:03 AM EST | Lake Wind Advisory | CAE | 37 hr |
| Dec 10, 12:57 PM EST | Lake Wind Advisory | CAE | 33 hr |
| Dec 16, 9:46 PM EST | Dense Fog Advisory | CAE | 10 hr |
| Dec 17, 9:25 PM EST | Dense Fog Advisory | CAE | 13 hr |
| Dec 20, 3:07 AM EST | Lake Wind Advisory | CAE | 20 hr |
| Dec 27, 10:11 PM EST | Dense Fog Advisory | CAE | 10 hr |
| Dec 28, 1:13 PM EST | Lake Wind Advisory | CAE | 29 hr |
| Dec 29, 5:22 AM EST | Mesoscale Discussion | SPC | 53 min |
| Dec 29, 6:02 AM EST | Tornado Watch | SPC | 7 hr |
| Dec 29, 6:44 AM EST | Severe Thunderstorm Warning | CAE | 61 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 | 11 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Warning | 4 |
| Flood Watch | 7 |
| Areal Flood Advisory | 12 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 20 |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| 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 archive20232025
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.