Alert archive / Georgia / Richmond County
Weather alerts in Richmond County, Georgia, 2020
112 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Richmond County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 112
- Warnings
- 20
- Watches
- 10
- Advisories
- 50
- Busiest month
- February19 alerts
- Busiest day
- February 6, 202010 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 2 tornado warnings covering Richmond County in 2020 had a tornado report inside them.
Richmond County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 2 | 0% | 0 | ||
| Severe thunderstorm warnings | 13 | 8 | 38% | 7 | 100% | 28 min |
| Flash flood warnings | 2 | 2 | 0% | 7 | 100% | 51 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Columbia, SC: tornado warnings | 28 | 15 | 46% | 25 | 80% | 14 min |
| NWS Columbia, SC: severe thunderstorm warnings | 155 | 89 | 43% | 321 | 82% | 23 min |
| NWS Columbia, SC: flash flood warnings | 20 | 17 | 15% | 74 | 86% | 66 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, 1:28 PM EST | Lake Wind Advisory | CAE | 39 hr |
| Jan 3, 2:02 PM EST | Mesoscale Discussion | SPC | 118 min |
| Jan 3, 4:24 PM EST | Special Weather Statement | CAE | 51 min |
| Jan 3, 5:27 PM EST | Special Weather Statement | CAE | 48 min |
| Jan 3, 6:17 PM EST | Severe Thunderstorm Warning | CAE | 43 min |
| Jan 7, 3:14 AM EST | Lake Wind Advisory | CAE | 16 hr |
| Jan 10, 12:51 PM EST | Lake Wind Advisory | CAE | 41 hr |
| Jan 11, 5:38 PM EST | Tornado Watch | SPC | 6 hr |
| Jan 11, 6:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 11, 8:40 PM EST | Mesoscale Discussion | SPC | 95 min |
| Jan 11, 8:53 PM EST | Severe Thunderstorm Warning | CAE | 52 min |
| Jan 11, 9:46 PM EST | Severe Thunderstorm Warning | CAE | 44 min |
| Jan 11, 10:59 PM EST | Mesoscale Discussion | SPC | 91 min |
| Jan 13, 3:01 AM EST | Dense Fog Advisory | CAE | 7 hr |
| Jan 13, 11:28 PM EST | Dense Fog Advisory | CAE | 11 hr |
| Feb 5, 11:30 AM EST | Flash Flood Watch | CAE | 35 hr |
| Feb 6, 3:52 AM EST | Lake Wind Advisory | CAE | 24 hr |
| Feb 6, 11:45 AM EST | Mesoscale Discussion | SPC | 90 min |
| Feb 6, 12:17 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 6, 2:09 PM EST | Severe Thunderstorm Warning | CAE | 36 min |
| Feb 6, 2:28 PM EST | Tornado Warning | CAE | 32 min |
| Feb 6, 2:32 PM EST | Mesoscale Discussion | SPC | 58 min |
| Feb 6, 3:14 PM EST | Severe Thunderstorm Warning | CAE | 31 min |
| Feb 6, 3:38 PM EST | Severe Thunderstorm Warning | CAE | 37 min |
| Feb 6, 4:29 PM EST | Areal Flood Advisory | CAE | 3 hr |
| Feb 6, 4:29 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 6, 7:36 PM EST | Areal Flood Advisory | CAE | 5 hr |
| Feb 7, 3:39 AM EST | Wind Advisory | CAE | 15 hr |
| Feb 7, 2:46 PM EST | River Flood Warning | CAE | 4 days |
| Feb 9, 12:34 AM EST | Dense Fog Advisory | CAE | 8 hr |
| Feb 9, 9:14 AM EST | Dense Fog Advisory | CAE | 46 min |
| Feb 11, 6:33 AM EST | Lake Wind Advisory | CAE | 12 hr |
| Feb 13, 6:59 AM EST | Lake Wind Advisory | CAE | 7 hr |
| Feb 26, 11:19 AM EST | Lake Wind Advisory | CAE | 29 hr |
| Mar 5, 1:31 PM EST | Lake Wind Advisory | CAE | 38 hr |
| Mar 6, 3:35 PM EST | Freeze Watch | CAE | 21 hr |
| Mar 7, 12:22 PM EST | Freeze Warning | CAE | 20 hr |
| Mar 11, 7:35 PM EDT | Special Weather Statement | CAE | 55 min |
| Mar 18, 3:52 AM EDT | Dense Fog Advisory | CAE | 6 hr |
| Mar 18, 6:53 PM EDT | Special Weather Statement | CAE | 37 min |
| Mar 24, 8:08 AM EDT | Dense Fog Advisory | CAE | 3 hr |
| Mar 31, 12:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 8, 2:32 PM EDT | Lake Wind Advisory | CAE | 29 hr |
| Apr 8, 2:56 PM EDT | Fire Weather Watch | CAE | 14 hr |
| Apr 9, 4:54 AM EDT | Red Flag Warning | CAE | 15 hr |
| Apr 12, 3:49 AM EDT | Lake Wind Advisory | CAE | 37 hr |
| Apr 13, 2:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 13, 3:20 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 4:20 AM EDT | Severe Thunderstorm Warning | CAE | 40 min |
| Apr 13, 4:41 AM EDT | Tornado Warning | CAE | 34 min |
| Apr 13, 4:58 AM EDT | Severe Thunderstorm Warning | CAE | 47 min |
| Apr 19, 8:43 AM EDT | Flash Flood Watch | CAE | 22 hr |
| Apr 23, 4:45 AM EDT | Lake Wind Advisory | CAE | 19 hr |
| Apr 26, 1:54 AM EDT | Lake Wind Advisory | CAE | 32 hr |
| Apr 29, 1:31 AM EDT | Lake Wind Advisory | CAE | 27 hr |
| May 1, 12:10 PM EDT | Lake Wind Advisory | CAE | 7 hr |
| May 6, 2:39 AM EDT | Lake Wind Advisory | CAE | 27 hr |
| Jun 5, 1:58 PM EDT | Special Weather Statement | CAE | 47 min |
| Jun 9, 6:12 PM EDT | Special Weather Statement | CAE | 33 min |
| Jun 19, 9:20 PM EDT | Special Weather Statement | CAE | 40 min |
| Jun 19, 9:45 PM EDT | Severe Thunderstorm Warning | CAE | 30 min |
| Jun 23, 4:07 PM EDT | Special Weather Statement | CAE | 53 min |
| Jun 23, 5:29 PM EDT | Special Weather Statement | CAE | 46 min |
| Jun 24, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 27, 6:57 PM EDT | Severe Thunderstorm Warning | CAE | 63 min |
| Jun 27, 7:42 PM EDT | Severe Thunderstorm Warning | CAE | 63 min |
| Jun 30, 7:18 PM EDT | Special Weather Statement | CAE | 42 min |
| Jun 30, 7:38 PM EDT | Severe Thunderstorm Warning | CAE | 52 min |
| Jul 7, 8:51 AM EDT | Areal Flood Advisory | CAE | 3 hr |
| Jul 7, 9:22 AM EDT | Flash Flood Watch | CAE | 11 hr |
| Jul 7, 12:28 PM EDT | Areal Flood Advisory | CAE | 5 hr |
| Jul 21, 2:10 PM EDT | Special Weather Statement | CAE | 35 min |
| Jul 23, 9:29 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Jul 24, 6:44 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Jul 25, 12:58 PM EDT | Special Weather Statement | CAE | 32 min |
| Jul 25, 3:40 PM EDT | Special Weather Statement | CAE | 35 min |
| Jul 25, 4:17 PM EDT | Special Weather Statement | CAE | 28 min |
| Jul 28, 5:50 PM EDT | Special Weather Statement | CAE | 25 min |
| Aug 3, 6:36 PM EDT | Areal Flood Advisory | CAE | 114 min |
| Aug 3, 7:23 PM EDT | Special Weather Statement | CAE | 67 min |
| Aug 3, 7:41 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Aug 5, 5:39 PM EDT | Special Weather Statement | CAE | 51 min |
| Aug 5, 5:57 PM EDT | Severe Thunderstorm Warning | CAE | 48 min |
| Aug 5, 6:49 PM EDT | Areal Flood Advisory | CAE | 67 min |
| Aug 6, 8:14 PM EDT | Special Weather Statement | CAE | 61 min |
| Aug 10, 5:42 PM EDT | Special Weather Statement | CAE | 33 min |
| Aug 14, 5:13 PM EDT | Areal Flood Advisory | CAE | 2 hr |
| Aug 17, 6:53 PM EDT | Special Weather Statement | CAE | 52 min |
| Aug 26, 3:05 PM EDT | Special Weather Statement | CAE | 40 min |
| Aug 26, 3:58 PM EDT | Areal Flood Advisory | CAE | 63 min |
| Aug 29, 4:38 AM EDT | Lake Wind Advisory | CAE | 12 hr |
| Sep 11, 5:14 PM EDT | Special Weather Statement | CAE | 46 min |
| Sep 16, 5:07 AM EDT | Flash Flood Watch | CAE | 40 hr |
| Sep 17, 8:30 AM EDT | Flash Flood Warning | CAE | 3 hr |
| Sep 17, 9:22 AM EDT | Flash Flood Warning | CAE | 3 hr |
| Sep 20, 5:25 PM EDT | Lake Wind Advisory | CAE | 18 hr |
| Sep 27, 2:40 AM EDT | Dense Fog Advisory | CAE | 6 hr |
| Oct 7, 5:30 AM EDT | Dense Fog Advisory | CAE | 4 hr |
| Oct 28, 5:24 PM EDT | Lake Wind Advisory | CAE | 39 hr |
| Nov 1, 4:18 AM EST | Lake Wind Advisory | CAE | 30 hr |
| Nov 2, 10:19 AM EST | Frost Advisory | CAE | 22 hr |
| Nov 11, 2:18 PM EST | Flash Flood Watch | CAE | 24 hr |
| Nov 15, 6:11 AM EST | Dense Fog Advisory | CAE | 4 hr |
| Nov 26, 11:43 PM EST | Dense Fog Advisory | CAE | 9 hr |
| Nov 29, 1:11 AM EST | Dense Fog Advisory | CAE | 6 hr |
| Nov 29, 7:26 PM EST | Lake Wind Advisory | CAE | 39 hr |
| Dec 4, 4:53 AM EST | Lake Wind Advisory | CAE | 24 hr |
| Dec 11, 7:44 AM EST | Dense Fog Advisory | CAE | 2 hr |
| Dec 13, 1:03 PM EST | Lake Wind Advisory | CAE | 36 hr |
| Dec 21, 1:41 PM EST | Lake Wind Advisory | CAE | 14 hr |
| Dec 23, 4:29 PM EST | Lake Wind Advisory | CAE | 51 hr |
| Dec 31, 8:21 AM EST | Dense Fog Advisory | CAE | 3 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 | 13 |
| Tornado Warning | 2 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 22 |
| Flooding | |
| Flash Flood Warning | 2 |
| River Flood Warning | 1 |
| Flash Flood Watch | 5 |
| Areal Flood Advisory | 11 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| Lake Wind Advisory | 24 |
| Wind Advisory | 1 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
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.