Alert archive / Georgia / McDuffie County
Weather alerts in McDuffie County, Georgia, 2023
102 weather alerts in 2023, 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 2023. Tap one for its archive.
- Alerts
- 102
- Warnings
- 18
- Watches
- 14
- Advisories
- 30
- Busiest month
- March23 alerts
- Busiest day
- March 26, 20236 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering McDuffie County in 2023 had a tornado report inside them.
McDuffie County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 10 | 9 | 10% | 7 | 100% | 23 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Columbia, SC: tornado warnings | 9 | 3 | 67% | 7 | 57% | 7 min |
| NWS Columbia, SC: severe thunderstorm warnings | 116 | 89 | 23% | 378 | 81% | 23 min |
| NWS Columbia, SC: flash flood warnings | 14 | 11 | 21% | 30 | 90% | 77 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, 10:47 PM EST | Dense Fog Advisory | CAE | 11 hr |
| Jan 4, 8:36 AM EST | Tornado Watch | SPC | 9 hr |
| Jan 4, 8:46 AM EST | Special Weather Statement | CAE | 44 min |
| Jan 4, 9:21 AM EST | Severe Thunderstorm Warning | CAE | 54 min |
| Jan 12, 2:51 AM EST | Lake Wind Advisory | CAE | 18 hr |
| Jan 12, 4:37 PM EST | Severe Thunderstorm Warning | CAE | 23 min |
| Jan 12, 4:41 PM EST | Tornado Watch | SPC | 3 hr |
| Jan 12, 5:00 PM EST | Tornado Warning | CAE | 45 min |
| Jan 12, 5:56 PM EST | Severe Thunderstorm Warning | CAE | 49 min |
| Jan 18, 12:19 AM EST | Dense Fog Advisory | CAE | 5 hr |
| Jan 18, 2:46 PM EST | Lake Wind Advisory | CAE | 27 hr |
| Jan 22, 2:45 PM EST | Lake Wind Advisory | CAE | 24 hr |
| Jan 24, 12:22 PM EST | Lake Wind Advisory | CAE | 42 hr |
| Jan 31, 1:00 AM EST | Dense Fog Advisory | CAE | 9 hr |
| Feb 11, 8:08 PM EST | Lake Wind Advisory | CAE | 10 hr |
| Feb 27, 5:04 PM EST | Lake Wind Advisory | CAE | 14 hr |
| Mar 2, 2:12 PM EST | Lake Wind Advisory | CAE | 19 hr |
| Mar 3, 9:25 AM EST | Wind Advisory | CAE | 16 hr |
| Mar 7, 3:25 AM EST | Lake Wind Advisory | CAE | 26 hr |
| Mar 13, 2:54 AM EDT | Freeze Watch | CAE | 24 hr |
| Mar 14, 3:17 AM EDT | Freeze Warning | CAE | 31 hr |
| Mar 14, 2:48 PM EDT | Freeze Watch | CAE | 12 hr |
| Mar 15, 3:11 AM EDT | Freeze Warning | CAE | 30 hr |
| Mar 18, 1:00 AM EDT | Freeze Warning | CAE | 32 hr |
| Mar 18, 3:21 AM EDT | Freeze Watch | CAE | 11 hr |
| Mar 18, 1:51 PM EDT | Freeze Warning | CAE | 44 hr |
| Mar 19, 3:47 AM EDT | Freeze Watch | CAE | 34 hr |
| Mar 20, 2:01 PM EDT | Freeze Warning | CAE | 20 hr |
| Mar 23, 3:36 AM EDT | Dense Fog Advisory | CAE | 6 hr |
| Mar 26, 6:04 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Mar 26, 6:32 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 26, 8:24 AM EDT | Severe Thunderstorm Warning | CAE | 36 min |
| Mar 26, 9:20 AM EDT | Areal Flood Advisory | CAE | 115 min |
| Mar 26, 9:51 AM EDT | Special Weather Statement | CAE | 24 min |
| Mar 26, 9:56 AM EDT | Severe Thunderstorm Warning | CAE | 34 min |
| Mar 26, 11:29 PM EDT | Special Weather Statement | CAE | 46 min |
| Mar 26, 11:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 9:57 AM EDT | Areal Flood Advisory | CAE | 3 hr |
| Mar 31, 2:48 PM EDT | Lake Wind Advisory | CAE | 31 hr |
| Apr 1, 11:01 AM EDT | Special Weather Statement | CAE | 44 min |
| Apr 7, 2:47 PM EDT | Lake Wind Advisory | CAE | 63 hr |
| Apr 29, 2:46 PM EDT | Lake Wind Advisory | CAE | 4 days |
| May 26, 3:59 AM EDT | Lake Wind Advisory | CAE | 46 hr |
| Jun 6, 5:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 6, 7:48 PM EDT | Special Weather Statement | CAE | 42 min |
| Jun 6, 8:06 PM EDT | Severe Thunderstorm Warning | CAE | 39 min |
| Jun 7, 3:27 PM EDT | Special Weather Statement | CAE | 33 min |
| Jun 12, 2:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 19, 7:24 AM EDT | Special Weather Statement | FFC | 21 min |
| Jun 20, 2:41 PM EDT | Special Weather Statement | CAE | 34 min |
| Jun 21, 4:05 AM EDT | Flood Watch | CAE | 48 hr |
| Jun 22, 10:37 PM EDT | Special Weather Statement | CAE | 38 min |
| Jun 25, 8:30 PM EDT | Special Weather Statement | CAE | 45 min |
| Jun 26, 1:59 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 2, 3:27 AM EDT | Heat Advisory | CAE | 17 hr |
| Jul 5, 2:38 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 4:39 PM EDT | Special Weather Statement | CAE | 51 min |
| Jul 10, 11:42 AM EDT | Areal Flood Advisory | CAE | 2 hr |
| Jul 15, 6:27 PM EDT | Special Weather Statement | CAE | 33 min |
| Jul 15, 6:56 PM EDT | Severe Thunderstorm Warning | CAE | 49 min |
| Jul 15, 7:39 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 20, 5:59 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 20, 6:43 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 7:15 PM EDT | Severe Thunderstorm Warning | CAE | 60 min |
| Jul 20, 7:40 PM EDT | Severe Thunderstorm Warning | CAE | 65 min |
| Jul 21, 6:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 21, 7:59 PM EDT | Special Weather Statement | CAE | 46 min |
| Aug 3, 4:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 5:41 PM EDT | Special Weather Statement | CAE | 34 min |
| Aug 3, 6:14 PM EDT | Special Weather Statement | CAE | 46 min |
| Aug 6, 1:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Aug 6, 3:02 PM EDT | Special Weather Statement | CAE | 43 min |
| Aug 6, 3:18 PM EDT | Heat Advisory | CAE | 28 hr |
| Aug 6, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 6, 4:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 7, 3:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 4:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 1:45 AM EDT | Special Weather Statement | CAE | 45 min |
| Aug 11, 10:52 AM EDT | Special Weather Statement | CAE | 23 min |
| Aug 12, 2:58 PM EDT | Heat Advisory | CAE | 29 hr |
| Aug 12, 6:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 7:46 PM EDT | Special Weather Statement | CAE | 44 min |
| Aug 13, 2:52 PM EDT | Heat Advisory | CAE | 29 hr |
| Aug 14, 2:53 PM EDT | Heat Advisory | CAE | 28 hr |
| Aug 15, 1:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 15, 4:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Aug 29, 10:53 AM EDT | Flood Watch | CAE | 39 hr |
| Aug 29, 11:02 AM EDT | Tropical Storm Watch | CAE | 24 hr |
| Aug 29, 10:58 PM EDT | Tropical Storm Warning | CAE | 27 hr |
| Sep 7, 2:25 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 3:37 PM EDT | Special Weather Statement | CAE | 53 min |
| Sep 7, 3:49 PM EDT | Severe Thunderstorm Warning | CAE | 41 min |
| Sep 11, 7:21 PM EDT | Special Weather Statement | CAE | 39 min |
| Sep 12, 6:10 PM EDT | Special Weather Statement | CAE | 35 min |
| Oct 7, 6:29 PM EDT | Lake Wind Advisory | CAE | 9 hr |
| Oct 20, 2:45 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 31, 3:53 AM EDT | Freeze Watch | CAE | 24 hr |
| Oct 31, 3:53 AM EDT | Lake Wind Advisory | CAE | 48 hr |
| Nov 1, 4:08 AM EDT | Freeze Warning | CAE | 29 hr |
| Dec 10, 3:28 AM EST | Lake Wind Advisory | CAE | 24 hr |
| Dec 16, 4:03 AM EST | Lake Wind Advisory | CAE | 3 days |
| Dec 29, 12:03 PM EST | Lake Wind Advisory | CAE | 8 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 | 10 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 22 |
| Flooding | |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 6 |
| Freeze Watch | 5 |
| Wind and dust | |
| Lake Wind Advisory | 17 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| 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 archive20222024
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.