Alert archive / South Carolina / Georgetown County
Weather alerts in Georgetown County, South Carolina, 2017
131 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Georgetown County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 131
- Warnings
- 26
- Watches
- 12
- Advisories
- 34
- Busiest month
- April25 alerts
- Busiest day
- April 5, 20176 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 2 tornado warnings covering Georgetown County in 2017 had a tornado report inside them.
Georgetown County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 6 | 50% | 5 | 80% | 12 min |
| Flash flood warnings | 3 | 1 | 67% | 2 | 100% | 52 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, NC: tornado warnings | 19 | 1 | 95% | 6 | 17% | 7 min |
| NWS Wilmington, NC: severe thunderstorm warnings | 87 | 49 | 44% | 121 | 65% | 18 min |
| NWS Wilmington, NC: flash flood warnings | 9 | 3 | 67% | 8 | 88% | 49 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 2, 5:46 PM EST | Dense Fog Advisory | ILM | 12 hr |
| Jan 17, 5:06 AM EST | Dense Fog Advisory | ILM | 5 hr |
| Jan 21, 4:46 AM EST | Dense Fog Advisory | ILM | 5 hr |
| Jan 22, 6:58 PM EST | Mesoscale Discussion | SPC | 92 min |
| Feb 9, 3:12 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 10:19 AM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 15, 10:55 AM EST | Special Weather Statement | ILM | 65 min |
| Feb 15, 12:35 PM EST | Severe Thunderstorm Warning | ILM | 35 min |
| Feb 25, 4:38 AM EST | Dense Fog Advisory | ILM | 4 hr |
| Mar 3, 3:29 AM EST | Freeze Watch | ILM | 9 hr |
| Mar 3, 3:29 AM EST | Freeze Warning | ILM | 30 hr |
| Mar 4, 9:06 AM EST | Freeze Warning | ILM | 23 hr |
| Mar 4, 3:06 PM EST | Frost Advisory | ILM | 17 hr |
| Mar 13, 9:22 AM EDT | Freeze Watch | ILM | 18 hr |
| Mar 14, 3:31 AM EDT | Freeze Warning | ILM | 31 hr |
| Mar 15, 11:17 AM EDT | Freeze Warning | ILM | 23 hr |
| Mar 16, 10:04 AM EDT | Freeze Warning | ILM | 24 hr |
| Mar 21, 11:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Mar 21, 11:54 PM EDT | Special Weather Statement | ILM | 66 min |
| Mar 31, 12:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 4:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 3, 4:36 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 3, 6:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 3, 6:42 PM EDT | Severe Thunderstorm Warning | ILM | 63 min |
| Apr 3, 7:44 PM EDT | Severe Thunderstorm Warning | ILM | 33 min |
| Apr 5, 2:45 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 5, 2:59 PM EDT | Wind Advisory | ILM | 31 hr |
| Apr 5, 4:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 5, 5:11 PM EDT | Severe Thunderstorm Warning | ILM | 29 min |
| Apr 5, 5:24 PM EDT | Tornado Warning | ILM | 51 min |
| Apr 5, 6:29 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 13, 8:14 PM EDT | Special Weather Statement | ILM | 61 min |
| Apr 20, 6:07 AM EDT | Dense Fog Advisory | ILM | 3 hr |
| Apr 21, 4:04 PM EDT | Beach Hazards Statement | ILM | 28 hr |
| Apr 23, 4:02 AM EDT | Flash Flood Watch | ILM | 48 hr |
| Apr 23, 2:12 PM EDT | Flash Flood Warning | ILM | 2 hr |
| Apr 23, 2:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 23, 2:32 PM EDT | Special Weather Statement | ILM | 28 min |
| Apr 23, 10:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 24, 5:57 AM EDT | Areal Flood Advisory | ILM | 108 min |
| Apr 24, 7:53 AM EDT | Areal Flood Advisory | ILM | 112 min |
| Apr 24, 8:10 AM EDT | Flash Flood Warning | ILM | 6 hr |
| Apr 26, 2:42 AM EDT | River Flood Warning | CHS | 13 days |
| Apr 27, 1:00 PM EDT | Coastal Flood Advisory | ILM | 12 hr |
| Apr 30, 3:02 PM EDT | Beach Hazards Statement | ILM | 29 hr |
| May 4, 8:49 PM EDT | Tornado Watch | SPC | 6 hr |
| May 4, 11:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 5, 3:09 AM EDT | Tornado Watch | SPC | 6 hr |
| May 5, 5:25 AM EDT | Beach Hazards Statement | ILM | 15 hr |
| May 12, 6:33 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 3:57 PM EDT | Beach Hazards Statement | ILM | 3 days |
| May 22, 5:26 PM EDT | Areal Flood Advisory | ILM | 64 min |
| May 22, 6:13 PM EDT | Flash Flood Warning | ILM | 3 hr |
| May 23, 3:19 AM EDT | Flash Flood Watch | ILM | 38 hr |
| May 23, 4:50 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 24, 3:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 7:38 AM EDT | River Flood Warning | CHS | 9 days |
| May 25, 9:14 PM EDT | Beach Hazards Statement | ILM | 24 hr |
| May 28, 7:06 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 28, 8:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| May 28, 8:46 PM EDT | Severe Thunderstorm Warning | ILM | 44 min |
| May 29, 9:59 PM EDT | Severe Thunderstorm Warning | ILM | 61 min |
| May 29, 10:28 PM EDT | Severe Thunderstorm Warning | ILM | 32 min |
| Jun 3, 4:28 PM EDT | Severe Thunderstorm Warning | ILM | 11 min |
| Jun 3, 4:38 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| Jun 3, 5:15 PM EDT | Severe Thunderstorm Warning | ILM | 19 min |
| Jun 3, 5:36 PM EDT | Special Weather Statement | ILM | 24 min |
| Jun 5, 9:49 PM EDT | Special Weather Statement | ILM | 56 min |
| Jun 7, 4:12 PM EDT | Beach Hazards Statement | ILM | 28 hr |
| Jun 14, 1:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 3:07 PM EDT | Special Weather Statement | ILM | 23 min |
| Jun 15, 3:11 PM EDT | Severe Thunderstorm Warning | ILM | 34 min |
| Jun 15, 3:27 PM EDT | Areal Flood Advisory | ILM | 93 min |
| Jun 16, 1:27 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 17, 1:45 PM EDT | Special Weather Statement | ILM | 60 min |
| Jun 19, 5:31 AM EDT | Beach Hazards Statement | ILM | 15 hr |
| Jun 19, 1:24 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Jun 23, 4:32 AM EDT | Beach Hazards Statement | ILM | 39 hr |
| Jul 7, 10:37 AM EDT | Heat Advisory | ILM | 8 hr |
| Jul 8, 9:20 PM EDT | Special Weather Statement | ILM | 25 min |
| Jul 9, 7:46 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 10, 12:33 PM EDT | Special Weather Statement | ILM | 27 min |
| Jul 15, 11:40 AM EDT | Heat Advisory | ILM | 7 hr |
| Jul 16, 2:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 3:46 AM EDT | Heat Advisory | ILM | 15 hr |
| Jul 22, 3:00 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 24, 11:24 AM EDT | Beach Hazards Statement | ILM | 9 hr |
| Jul 26, 10:08 AM EDT | Special Weather Statement | ILM | 22 min |
| Aug 7, 3:48 PM EDT | Severe Thunderstorm Warning | ILM | 42 min |
| Aug 8, 5:20 AM EDT | Beach Hazards Statement | ILM | 16 hr |
| Aug 8, 12:45 PM EDT | Special Weather Statement | ILM | 60 min |
| Aug 8, 12:57 PM EDT | Special Weather Statement | ILM | 63 min |
| Aug 8, 2:12 PM EDT | Special Weather Statement | ILM | 33 min |
| Aug 14, 3:13 PM EDT | Rip Current Statement | ILM | 29 hr |
| Aug 16, 10:07 AM EDT | Heat Advisory | ILM | 7 hr |
| Aug 17, 3:21 AM EDT | Heat Advisory | ILM | 14 hr |
| Aug 18, 3:21 AM EDT | Heat Advisory | ILM | 15 hr |
| Aug 19, 3:22 AM EDT | Heat Advisory | ILM | 15 hr |
| Aug 19, 4:19 PM EDT | Special Weather Statement | ILM | 26 min |
| Aug 21, 1:10 PM EDT | Areal Flood Advisory | ILM | 65 min |
| Aug 26, 4:00 PM EDT | Beach Hazards Statement | ILM | 25 hr |
| Aug 27, 4:59 PM EDT | Tropical Storm Watch | ILM | 39 hr |
| Aug 28, 3:19 AM EDT | Flash Flood Watch | ILM | 24 hr |
| Sep 1, 3:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 4:45 AM EDT | Special Weather Statement | ILM | 45 min |
| Sep 5, 4:43 PM EDT | Rip Current Statement | ILM | 27 hr |
| Sep 7, 4:39 PM EDT | Rip Current Statement | ILM | 5 days |
| Sep 10, 3:44 AM EDT | Wind Advisory | ILM | 46 hr |
| Sep 10, 1:20 PM EDT | Coastal Flood Watch | ILM | 15 hr |
| Sep 10, 1:20 PM EDT | Coastal Flood Advisory | ILM | 27 hr |
| Sep 10, 5:35 PM EDT | High Surf Advisory | ILM | 41 hr |
| Sep 11, 10:45 AM EDT | River Flood Warning | CHS | 24 hr |
| Sep 11, 3:15 PM EDT | Coastal Flood Advisory | ILM | 14 hr |
| Sep 11, 7:00 PM EDT | Coastal Flood Warning | ILM | 8 hr |
| Sep 11, 9:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Sep 11, 10:18 PM EDT | Tornado Warning | ILM | 27 min |
| Sep 16, 8:06 PM EDT | Rip Current Statement | ILM | 49 hr |
| Sep 21, 5:13 PM EDT | Special Weather Statement | ILM | 32 min |
| Sep 21, 5:42 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Sep 22, 3:05 PM EDT | Rip Current Statement | ILM | 5 days |
| Sep 23, 2:11 PM EDT | High Surf Advisory | ILM | 50 hr |
| Sep 29, 3:10 PM EDT | Beach Hazards Statement | ILM | 53 hr |
| Oct 16, 4:46 PM EDT | Beach Hazards Statement | ILM | 28 hr |
| Oct 18, 3:13 PM EDT | Rip Current Statement | ILM | 14 hr |
| Oct 23, 6:59 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Oct 29, 5:24 AM EDT | Beach Hazards Statement | ILM | 15 hr |
| Nov 5, 2:47 AM EST | Coastal Flood Advisory | ILM | 7 hr |
| Nov 5, 11:13 PM EST | Dense Fog Advisory | ILM | 11 hr |
| Nov 17, 11:21 PM EST | Frost Advisory | ILM | 9 hr |
| Dec 28, 2:31 PM EST | Winter Weather Advisory | ILM | 18 hr |
| Dec 31, 5:50 PM EST | Winter Weather Advisory | ILM | 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 | 12 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Warning | 3 |
| River Flood Warning | 3 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 5 |
| Freeze Watch | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Tropical | |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 4 |
| High Surf Advisory | 2 |
| Beach Hazards Statement | 14 |
| Rip Current Statement | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.