Alert archive / South Carolina / Horry County
Weather alerts in Horry County, South Carolina, 2016
212 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Horry County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 212
- Warnings
- 57
- Watches
- 16
- Advisories
- 55
- Busiest month
- July64 alerts
- Busiest day
- October 8, 201611 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 4 tornado warnings covering Horry County in 2016 had a tornado report inside them.
Horry County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 30 | 22 | 27% | 23 | 87% | 17 min |
| Flash flood warnings | 6 | 6 | 0% | 9 | 100% | 215 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wilmington, NC: tornado warnings | 20 | 0 | 100% | 1 | 0% | |
| NWS Wilmington, NC: severe thunderstorm warnings | 124 | 86 | 31% | 188 | 83% | 20 min |
| NWS Wilmington, NC: flash flood warnings | 20 | 16 | 20% | 56 | 95% | 172 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, 10:40 AM EST | River Flood Warning | ILM | 16 days |
| Jan 15, 2:13 PM EST | Special Weather Statement | ILM | 92 min |
| Feb 4, 11:10 AM EST | Flood Watch | ILM | 14 hr |
| Feb 4, 11:39 AM EST | River Flood Warning | ILM | 32 days |
| Feb 4, 8:38 PM EST | River Flood Warning | ILM | 29 days |
| Feb 6, 1:11 PM EST | Wind Advisory | ILM | 32 hr |
| Feb 6, 2:57 PM EST | Flood Watch | ILM | 30 hr |
| Feb 7, 11:56 AM EST | Areal Flood Advisory | ILM | 3 hr |
| Feb 8, 6:01 PM EST | Special Weather Statement | ILM | 44 min |
| Feb 11, 3:31 PM EST | Winter Weather Advisory | ILM | 23 hr |
| Feb 16, 5:18 AM EST | Special Weather Statement | ILM | 27 min |
| Feb 23, 3:23 PM EST | Wind Advisory | ILM | 29 hr |
| Feb 24, 10:31 AM EST | Special Weather Statement | ILM | 44 min |
| Feb 24, 11:16 AM EST | Tornado Watch | SPC | 8 hr |
| Feb 24, 11:27 AM EST | Special Weather Statement | ILM | 63 min |
| Feb 24, 11:40 AM EST | Areal Flood Advisory | ILM | 3 hr |
| Feb 24, 2:55 PM EST | Mesoscale Discussion | SPC | 95 min |
| Feb 24, 6:50 PM EST | Tornado Watch | SPC | 4 hr |
| Feb 24, 8:11 PM EST | Wind Advisory | ILM | 16 hr |
| Mar 2, 2:03 AM EST | Special Weather Statement | ILM | 57 min |
| Mar 21, 3:25 AM EDT | Frost Advisory | ILM | 30 hr |
| Apr 1, 9:47 AM EDT | Special Weather Statement | ILM | 28 min |
| Apr 7, 4:22 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 6:42 AM EDT | Special Weather Statement | ILM | 48 min |
| Apr 7, 6:43 AM EDT | Special Weather Statement | ILM | 47 min |
| Apr 7, 7:00 AM EDT | Severe Thunderstorm Warning | ILM | 30 min |
| Apr 15, 5:15 AM EDT | Beach Hazards Statement | ILM | 16 hr |
| Apr 16, 5:04 AM EDT | Beach Hazards Statement | ILM | 16 hr |
| Apr 17, 5:13 AM EDT | Beach Hazards Statement | ILM | 16 hr |
| Apr 22, 4:07 PM EDT | Special Weather Statement | ILM | 38 min |
| Apr 22, 6:32 PM EDT | Special Weather Statement | ILM | 43 min |
| Apr 22, 9:03 PM EDT | Areal Flood Advisory | ILM | 117 min |
| May 1, 4:12 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| May 3, 5:17 AM EDT | Special Weather Statement | ILM | 58 min |
| May 3, 6:24 AM EDT | Areal Flood Advisory | ILM | 51 min |
| May 3, 8:59 AM EDT | Areal Flood Advisory | ILM | 61 min |
| May 3, 2:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 5, 3:33 PM EDT | Special Weather Statement | ILM | 87 min |
| May 5, 6:46 PM EDT | Special Weather Statement | ILM | 74 min |
| May 5, 7:54 PM EDT | Special Weather Statement | ILM | 66 min |
| May 6, 3:37 PM EDT | Coastal Flood Advisory | ILM | 8 hr |
| May 7, 3:40 PM EDT | Coastal Flood Advisory | ILM | 8 hr |
| May 12, 5:07 PM EDT | Special Weather Statement | ILM | 53 min |
| May 12, 5:53 PM EDT | Special Weather Statement | ILM | 37 min |
| May 13, 1:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 13, 2:04 PM EDT | Special Weather Statement | ILM | 56 min |
| May 13, 2:28 PM EDT | Severe Thunderstorm Warning | ILM | 15 min |
| May 13, 3:03 PM EDT | Special Weather Statement | ILM | 57 min |
| May 13, 5:11 PM EDT | Special Weather Statement | ILM | 64 min |
| May 22, 10:34 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| May 27, 5:00 PM EDT | Tropical Storm Warning | NHC | 36 hr |
| May 27, 5:24 PM EDT | Tropical Storm Warning | ILM | 11 days |
| May 28, 4:18 PM EDT | Rip Current Statement | ILM | 52 hr |
| Jun 1, 3:07 PM EDT | Coastal Flood Advisory | ILM | 3 hr |
| Jun 2, 1:40 PM EDT | Special Weather Statement | ILM | 65 min |
| Jun 3, 3:36 PM EDT | Coastal Flood Advisory | ILM | 8 hr |
| Jun 4, 3:19 PM EDT | Coastal Flood Advisory | ILM | 9 hr |
| Jun 5, 11:00 AM EDT | Tropical Storm Warning | NHC | 51 hr |
| Jun 5, 2:59 PM EDT | Coastal Flood Advisory | ILM | 10 hr |
| Jun 5, 3:35 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jun 5, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 5, 4:15 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Jun 6, 9:34 AM EDT | Flash Flood Watch | ILM | 19 hr |
| Jun 6, 4:19 PM EDT | Rip Current Statement | ILM | 28 hr |
| Jun 14, 1:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 14, 8:23 PM EDT | Areal Flood Advisory | ILM | 52 min |
| Jun 15, 1:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 4:57 PM EDT | Special Weather Statement | ILM | 48 min |
| Jun 15, 5:12 PM EDT | Severe Thunderstorm Warning | ILM | 32 min |
| Jun 17, 12:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 6:17 PM EDT | Beach Hazards Statement | ILM | 50 hr |
| Jun 18, 4:03 PM EDT | Rip Current Statement | ILM | 53 hr |
| Jun 24, 3:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 3:45 PM EDT | Severe Thunderstorm Warning | ILM | 60 min |
| Jun 24, 4:35 PM EDT | Severe Thunderstorm Warning | ILM | 55 min |
| Jun 24, 5:14 PM EDT | Severe Thunderstorm Warning | ILM | 61 min |
| Jun 24, 5:28 PM EDT | Severe Thunderstorm Warning | ILM | 62 min |
| Jun 24, 6:04 PM EDT | Severe Thunderstorm Warning | ILM | 41 min |
| Jun 25, 4:16 PM EDT | Special Weather Statement | ILM | 59 min |
| Jun 28, 3:18 PM EDT | Areal Flood Advisory | ILM | 117 min |
| Jul 3, 3:12 AM EDT | Heat Advisory | ILM | 15 hr |
| Jul 3, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 3:34 PM EDT | Heat Advisory | ILM | 51 hr |
| Jul 5, 6:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 9:40 PM EDT | Heat Advisory | ILM | 21 hr |
| Jul 6, 3:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 6, 4:03 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 6, 6:20 PM EDT | Special Weather Statement | ILM | 40 min |
| Jul 6, 9:07 PM EDT | Heat Advisory | ILM | 21 hr |
| Jul 7, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 6:00 PM EDT | Severe Thunderstorm Warning | ILM | 45 min |
| Jul 7, 6:10 PM EDT | Severe Thunderstorm Warning | ILM | 50 min |
| Jul 7, 6:41 PM EDT | Severe Thunderstorm Warning | ILM | 34 min |
| Jul 7, 7:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 7, 7:57 PM EDT | Heat Advisory | ILM | 23 hr |
| Jul 7, 9:37 PM EDT | Severe Thunderstorm Warning | ILM | 53 min |
| Jul 7, 10:34 PM EDT | Special Weather Statement | ILM | 41 min |
| Jul 7, 11:13 PM EDT | Special Weather Statement | ILM | 47 min |
| Jul 8, 9:53 PM EDT | Mesoscale Discussion | SPC | 37 min |
| Jul 8, 11:17 PM EDT | Severe Thunderstorm Warning | ILM | 58 min |
| Jul 8, 11:29 PM EDT | Severe Thunderstorm Warning | ILM | 61 min |
| Jul 9, 12:05 AM EDT | Severe Thunderstorm Warning | ILM | 55 min |
| Jul 9, 12:23 AM EDT | Severe Thunderstorm Warning | ILM | 67 min |
| Jul 9, 12:31 AM EDT | Severe Thunderstorm Warning | ILM | 29 min |
| Jul 9, 1:27 AM EDT | Severe Thunderstorm Warning | ILM | 63 min |
| Jul 9, 3:14 AM EDT | Heat Advisory | ILM | 12 hr |
| Jul 9, 7:40 PM EDT | Severe Thunderstorm Warning | ILM | 18 min |
| Jul 10, 6:31 PM EDT | Special Weather Statement | ILM | 44 min |
| Jul 10, 6:42 PM EDT | Special Weather Statement | ILM | 33 min |
| Jul 10, 7:19 PM EDT | Severe Thunderstorm Warning | ILM | 26 min |
| Jul 10, 7:28 PM EDT | Severe Thunderstorm Warning | ILM | 32 min |
| Jul 11, 1:42 PM EDT | Special Weather Statement | ILM | 33 min |
| Jul 11, 1:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 11, 6:19 PM EDT | Special Weather Statement | ILM | 41 min |
| Jul 11, 7:02 PM EDT | Special Weather Statement | ILM | 43 min |
| Jul 11, 7:21 PM EDT | Severe Thunderstorm Warning | ILM | 54 min |
| Jul 11, 8:14 PM EDT | Areal Flood Advisory | ILM | 61 min |
| Jul 11, 8:15 PM EDT | Severe Thunderstorm Warning | ILM | 25 min |
| Jul 11, 8:47 PM EDT | Special Weather Statement | ILM | 58 min |
| Jul 11, 8:51 PM EDT | Severe Thunderstorm Warning | ILM | 54 min |
| Jul 11, 9:25 PM EDT | Special Weather Statement | ILM | 50 min |
| Jul 11, 10:10 PM EDT | Areal Flood Warning | ILM | 95 min |
| Jul 12, 3:11 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 13, 7:51 PM EDT | Heat Advisory | ILM | 21 hr |
| Jul 14, 2:22 PM EDT | Special Weather Statement | ILM | 53 min |
| Jul 15, 2:53 PM EDT | Special Weather Statement | ILM | 67 min |
| Jul 15, 3:10 PM EDT | Severe Thunderstorm Warning | ILM | 23 min |
| Jul 16, 2:05 PM EDT | Special Weather Statement | ILM | 40 min |
| Jul 16, 2:53 PM EDT | Special Weather Statement | ILM | 37 min |
| Jul 16, 10:45 PM EDT | Special Weather Statement | ILM | 60 min |
| Jul 16, 10:58 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 16, 11:25 PM EDT | Severe Thunderstorm Warning | ILM | 50 min |
| Jul 17, 12:04 AM EDT | Severe Thunderstorm Warning | ILM | 20 min |
| Jul 19, 7:39 PM EDT | Special Weather Statement | ILM | 66 min |
| Jul 19, 10:00 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Jul 23, 3:31 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 23, 5:00 PM EDT | Special Weather Statement | ILM | 45 min |
| Jul 25, 3:07 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 27, 3:19 AM EDT | Heat Advisory | ILM | 16 hr |
| Jul 28, 3:13 AM EDT | Heat Advisory | ILM | 17 hr |
| Jul 29, 4:17 PM EDT | Heat Advisory | ILM | 27 hr |
| Jul 31, 2:50 AM EDT | Heat Advisory | ILM | 16 hr |
| Jul 31, 10:16 AM EDT | Beach Hazards Statement | ILM | 9 hr |
| Jul 31, 4:37 PM EDT | Severe Thunderstorm Warning | ILM | 22 min |
| Aug 1, 10:56 AM EDT | Beach Hazards Statement | ILM | 9 hr |
| Aug 5, 1:02 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Aug 5, 3:19 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Aug 18, 2:17 PM EDT | Special Weather Statement | ILM | 58 min |
| Aug 18, 3:59 PM EDT | Special Weather Statement | ILM | 46 min |
| Aug 18, 4:18 PM EDT | Special Weather Statement | ILM | 57 min |
| Aug 18, 4:20 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| Aug 18, 5:03 PM EDT | Severe Thunderstorm Warning | ILM | 57 min |
| Aug 29, 5:15 AM EDT | Rip Current Statement | ILM | 4 days |
| Aug 30, 5:00 PM EDT | Tropical Storm Watch | NHC | 5 days |
| Aug 31, 5:00 AM EDT | Tropical Storm Warning | NHC | 10 days |
| Sep 1, 4:14 AM EDT | Flash Flood Watch | ILM | 42 hr |
| Sep 2, 12:09 AM EDT | Rip Current Statement | ILM | 45 hr |
| Sep 2, 5:05 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 7:51 AM EDT | Tornado Watch | SPC | 8 hr |
| Sep 2, 12:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 2:15 PM EDT | Flash Flood Warning | ILM | 2 hr |
| Sep 2, 3:29 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 2, 3:36 PM EDT | Tornado Warning | ILM | 12 min |
| Sep 2, 3:45 PM EDT | Tornado Watch | SPC | 11 hr |
| Sep 2, 4:56 PM EDT | Areal Flood Advisory | ILM | 2 hr |
| Sep 11, 4:39 PM EDT | Special Weather Statement | ILM | 51 min |
| Sep 11, 5:07 PM EDT | Special Weather Statement | ILM | 38 min |
| Sep 11, 5:20 PM EDT | Special Weather Statement | ILM | 55 min |
| Sep 12, 1:14 PM EDT | Special Weather Statement | ILM | 46 min |
| Sep 12, 2:17 PM EDT | Special Weather Statement | ILM | 43 min |
| Sep 12, 3:36 PM EDT | Areal Flood Advisory | ILM | 54 min |
| Sep 14, 3:08 PM EDT | Flash Flood Watch | ILM | 12 hr |
| Sep 14, 3:26 PM EDT | Rip Current Statement | ILM | 29 hr |
| Sep 14, 4:20 PM EDT | Areal Flood Advisory | ILM | 55 min |
| Sep 14, 5:03 PM EDT | Areal Flood Advisory | ILM | 57 min |
| Sep 14, 6:00 PM EDT | Areal Flood Advisory | ILM | 60 min |
| Sep 19, 6:45 AM EDT | Areal Flood Advisory | ILM | 60 min |
| Sep 29, 2:27 PM EDT | Special Weather Statement | ILM | 33 min |
| Oct 4, 4:57 PM EDT | Beach Hazards Statement | ILM | 51 hr |
| Oct 4, 11:00 PM EDT | Hurricane Warning | NHC | 4 days |
| Oct 4, 11:00 PM EDT | Tropical Storm Warning | NHC | 5 days |
| Oct 6, 10:37 AM EDT | Flash Flood Watch | ILM | 59 hr |
| Oct 6, 5:39 PM EDT | Rip Current Statement | ILM | 26 hr |
| Oct 6, 5:53 PM EDT | Tropical Storm Warning | ILM | 69 hr |
| Oct 7, 10:54 AM EDT | River Flood Warning | ILM | 20 days |
| Oct 7, 10:54 AM EDT | River Flood Warning | ILM | 26 days |
| Oct 7, 11:42 AM EDT | Hurricane Warning | ILM | 42 hr |
| Oct 8, 1:21 AM EDT | Tornado Warning | ILM | 24 min |
| Oct 8, 2:04 AM EDT | Tornado Warning | ILM | 26 min |
| Oct 8, 2:22 AM EDT | Mesoscale Discussion | SPC | 113 min |
| Oct 8, 3:33 AM EDT | Tornado Warning | ILM | 27 min |
| Oct 8, 4:42 AM EDT | Rip Current Statement | ILM | 12 hr |
| Oct 8, 5:13 AM EDT | Flash Flood Warning | ILM | 8 hr |
| Oct 8, 7:20 AM EDT | Tornado Watch | SPC | 8 hr |
| Oct 8, 10:19 AM EDT | Flash Flood Warning | ILM | 6 hr |
| Oct 8, 12:29 PM EDT | Flash Flood Warning | ILM | 3 hr |
| Oct 8, 4:02 PM EDT | Flash Flood Warning | ILM | 4 hr |
| Oct 8, 5:10 PM EDT | Rip Current Statement | ILM | 27 hr |
| Oct 8, 8:00 PM EDT | Flash Flood Warning | ILM | 8 hr |
| Oct 10, 11:21 AM EDT | Areal Flood Warning | ILM | 4 days |
| Oct 14, 11:18 AM EDT | Areal Flood Warning | ILM | 72 hr |
| Oct 15, 5:35 AM EDT | Rip Current Statement | ILM | 14 hr |
| Oct 17, 11:00 AM EDT | Areal Flood Warning | ILM | 48 hr |
| Oct 21, 5:05 AM EDT | Dense Fog Advisory | ILM | 4 hr |
| Nov 14, 9:50 PM EST | Dense Fog Advisory | ILM | 11 hr |
| Nov 20, 9:32 PM EST | Frost Advisory | ILM | 10 hr |
| Nov 21, 3:38 PM EST | Frost Advisory | ILM | 16 hr |
| Nov 22, 3:05 PM EST | Frost Advisory | ILM | 17 hr |
| Dec 12, 8:50 AM EST | Special Weather Statement | ILM | 55 min |
| Dec 15, 3:47 AM EST | Coastal Flood Advisory | ILM | 8 hr |
| Dec 18, 2:25 AM EST | Dense Fog Advisory | ILM | 7 hr |
| Dec 27, 2:21 AM EST | Dense Fog 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 | 30 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 17 |
| Special Weather Statement | 50 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 6 |
| River Flood Warning | 5 |
| Flash Flood Watch | 4 |
| Flood Watch | 2 |
| Areal Flood Advisory | 22 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 14 |
| Cold | |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Tropical | |
| Hurricane Warning | 2 |
| Tropical Storm Warning | 6 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 7 |
| Beach Hazards Statement | 7 |
| Rip Current Statement | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.