Alert archive / South Carolina / Florence County
Weather alerts in Florence County, South Carolina, 2016
167 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Florence County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 167
- Warnings
- 57
- Watches
- 14
- Advisories
- 38
- Busiest month
- July60 alerts
- Busiest day
- July 7, 20169 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 Florence County in 2016 had a tornado report inside them.
Florence County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 35 | 30 | 14% | 24 | 92% | 22 min |
| Flash flood warnings | 2 | 2 | 0% | 9 | 78% | 200 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 3, 8:18 PM EST | River Flood Warning | ILM | 5 days |
| Jan 21, 3:38 AM EST | Freezing Rain Advisory | ILM | 33 hr |
| Jan 22, 1:02 PM EST | Freezing Rain Advisory | ILM | 2 hr |
| Jan 22, 3:20 PM EST | Winter Weather Advisory | ILM | 21 hr |
| Feb 3, 3:41 PM EST | Severe Thunderstorm Warning | ILM | 64 min |
| Feb 4, 11:39 AM EST | River Flood Warning | ILM | 9 days |
| Feb 4, 11:39 AM EST | River Flood Warning | ILM | 4 days |
| Feb 7, 2:00 PM EST | Special Weather Statement | ILM | 90 min |
| Feb 7, 3:40 PM EST | Special Weather Statement | ILM | 95 min |
| Feb 9, 10:25 PM EST | Special Weather Statement | ILM | 50 min |
| Feb 9, 11:22 PM EST | Special Weather Statement | ILM | 53 min |
| Feb 11, 3:31 PM EST | Winter Weather Advisory | ILM | 23 hr |
| Feb 15, 11:54 PM EST | Special Weather Statement | ILM | 36 min |
| Feb 16, 3:46 AM EST | Special Weather Statement | ILM | 29 min |
| Feb 16, 4:12 AM EST | Special Weather Statement | ILM | 33 min |
| Feb 16, 10:15 AM EST | River Flood Warning | ILM | 18 days |
| Feb 23, 3:23 PM EST | Wind Advisory | ILM | 29 hr |
| Feb 24, 11:16 AM EST | Tornado Watch | SPC | 8 hr |
| Feb 24, 2:55 PM EST | Mesoscale Discussion | SPC | 95 min |
| Feb 24, 4:05 PM EST | Severe Thunderstorm Warning | ILM | 40 min |
| Feb 24, 4:40 PM EST | Severe Thunderstorm Warning | ILM | 65 min |
| Feb 24, 8:11 PM EST | Wind Advisory | ILM | 16 hr |
| Feb 25, 8:43 PM EST | River Flood Warning | ILM | 49 hr |
| Mar 2, 1:03 AM EST | Special Weather Statement | ILM | 57 min |
| Mar 13, 5:39 PM EDT | Special Weather Statement | ILM | 66 min |
| Mar 13, 6:28 PM EDT | Special Weather Statement | ILM | 47 min |
| Mar 14, 11:25 PM EDT | Special Weather Statement | ILM | 65 min |
| Mar 21, 3:25 AM EDT | Frost Advisory | ILM | 30 hr |
| Apr 1, 9:23 AM EDT | Areal Flood Advisory | ILM | 52 min |
| Apr 7, 4:22 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 4:41 AM EDT | Special Weather Statement | ILM | 34 min |
| Apr 7, 5:15 AM EDT | Special Weather Statement | ILM | 60 min |
| Apr 8, 5:42 AM EDT | Freeze Watch | ILM | 30 hr |
| Apr 8, 2:52 PM EDT | Freeze Warning | ILM | 42 hr |
| Apr 12, 11:45 PM EDT | Dense Fog Advisory | ILM | 2 hr |
| Apr 22, 2:15 PM EDT | Special Weather Statement | ILM | 45 min |
| Apr 22, 2:47 PM EDT | Special Weather Statement | ILM | 43 min |
| Apr 22, 3:18 PM EDT | Special Weather Statement | ILM | 57 min |
| Apr 22, 4:34 PM EDT | Special Weather Statement | ILM | 41 min |
| Apr 22, 5:12 PM EDT | Special Weather Statement | ILM | 48 min |
| Apr 22, 7:20 PM EDT | Areal Flood Advisory | ILM | 3 hr |
| 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 2, 2:23 PM EDT | Mesoscale Discussion | SPC | 67 min |
| May 3, 2:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 5, 9:13 AM EDT | River Flood Warning | ILM | 50 hr |
| May 5, 2:27 PM EDT | Special Weather Statement | ILM | 93 min |
| May 5, 3:09 PM EDT | Special Weather Statement | ILM | 51 min |
| May 5, 4:38 PM EDT | Special Weather Statement | ILM | 52 min |
| May 5, 5:29 PM EDT | Special Weather Statement | ILM | 91 min |
| May 5, 6:46 PM EDT | Special Weather Statement | ILM | 74 min |
| May 12, 3:22 PM EDT | Severe Thunderstorm Warning | ILM | 53 min |
| May 13, 1:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 10:34 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| May 23, 9:14 AM EDT | River Flood Warning | ILM | 25 hr |
| Jun 2, 6:26 PM EDT | Special Weather Statement | ILM | 64 min |
| Jun 5, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 6, 9:34 AM EDT | Flash Flood Watch | ILM | 19 hr |
| Jun 14, 1:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 14, 10:29 PM EDT | Severe Thunderstorm Warning | ILM | 41 min |
| Jun 15, 12:08 AM EDT | Areal Flood Advisory | ILM | 112 min |
| Jun 15, 1:40 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 3:18 PM EDT | Special Weather Statement | ILM | 42 min |
| Jun 17, 1:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 3:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 4:03 PM EDT | Severe Thunderstorm Warning | ILM | 42 min |
| Jun 24, 4:29 PM EDT | Special Weather Statement | ILM | 46 min |
| Jun 24, 4:35 PM EDT | Severe Thunderstorm Warning | ILM | 55 min |
| Jun 24, 4:52 PM EDT | Severe Thunderstorm Warning | ILM | 53 min |
| Jun 24, 5:28 PM EDT | Severe Thunderstorm Warning | ILM | 62 min |
| Jun 25, 2:50 PM EDT | Special Weather Statement | ILM | 40 min |
| Jun 25, 3:24 PM EDT | Special Weather Statement | ILM | 51 min |
| Jun 25, 3:30 PM EDT | Special Weather Statement | ILM | 45 min |
| Jun 25, 4:16 PM EDT | Special Weather Statement | ILM | 59 min |
| Jun 25, 5:03 PM EDT | Severe Thunderstorm Warning | ILM | 42 min |
| Jun 29, 4:15 AM EDT | Dense Fog Advisory | ILM | 5 hr |
| Jul 3, 3:12 AM EDT | Heat Advisory | ILM | 15 hr |
| Jul 3, 1:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 3:17 PM EDT | Severe Thunderstorm Warning | ILM | 30 min |
| Jul 3, 3:34 PM EDT | Heat Advisory | ILM | 51 hr |
| Jul 5, 6:08 PM EDT | Severe Thunderstorm Warning | ILM | 37 min |
| Jul 5, 6:45 PM EDT | Severe Thunderstorm Warning | ILM | 45 min |
| 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, 4:48 PM EDT | Special Weather Statement | ILM | 42 min |
| Jul 6, 5:04 PM EDT | Severe Thunderstorm Warning | ILM | 56 min |
| Jul 6, 5:36 PM EDT | Severe Thunderstorm Warning | ILM | 39 min |
| Jul 6, 5:50 PM EDT | Severe Thunderstorm Warning | ILM | 40 min |
| Jul 6, 9:07 PM EDT | Heat Advisory | ILM | 21 hr |
| Jul 7, 3:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 7, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 4:58 PM EDT | Severe Thunderstorm Warning | ILM | 47 min |
| Jul 7, 5:15 PM EDT | Severe Thunderstorm Warning | ILM | 45 min |
| Jul 7, 5:37 PM EDT | Severe Thunderstorm Warning | ILM | 38 min |
| Jul 7, 6:00 PM EDT | Severe Thunderstorm Warning | ILM | 45 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, 8:47 PM EDT | Severe Thunderstorm Warning | ILM | 58 min |
| Jul 7, 9:37 PM EDT | Severe Thunderstorm Warning | ILM | 53 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 8, 11:40 PM EDT | Severe Thunderstorm Warning | ILM | 65 min |
| Jul 9, 12:23 AM EDT | Severe Thunderstorm Warning | ILM | 67 min |
| Jul 9, 3:14 AM EDT | Heat Advisory | ILM | 12 hr |
| Jul 10, 4:56 PM EDT | Severe Thunderstorm Warning | ILM | 48 min |
| Jul 11, 4:07 AM EDT | Special Weather Statement | ILM | 38 min |
| Jul 11, 1:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 11, 4:43 PM EDT | Severe Thunderstorm Warning | ILM | 62 min |
| Jul 11, 6:56 PM EDT | Severe Thunderstorm Warning | ILM | 34 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, 8:47 PM EDT | Special Weather Statement | ILM | 58 min |
| Jul 11, 8:51 PM EDT | Severe Thunderstorm Warning | ILM | 54 min |
| Jul 12, 3:11 PM EDT | Heat Advisory | ILM | 28 hr |
| Jul 13, 7:51 PM EDT | Heat Advisory | ILM | 21 hr |
| Jul 15, 1:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 3:05 PM EDT | Special Weather Statement | ILM | 40 min |
| Jul 16, 9:04 PM EDT | Special Weather Statement | ILM | 56 min |
| Jul 16, 10:02 PM EDT | Special Weather Statement | ILM | 43 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 19, 11:29 PM EDT | Special Weather Statement | ILM | 46 min |
| Jul 20, 12:17 AM EDT | Special Weather Statement | ILM | 58 min |
| Jul 20, 12:57 AM EDT | Areal Flood Advisory | ILM | 3 hr |
| Jul 23, 3:31 PM EDT | Heat Advisory | ILM | 28 hr |
| 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, 4:27 PM EDT | Special Weather Statement | ILM | 63 min |
| Jul 31, 4:37 PM EDT | Severe Thunderstorm Warning | ILM | 22 min |
| Aug 18, 3:47 PM EDT | Special Weather Statement | ILM | 43 min |
| Aug 18, 5:03 PM EDT | Severe Thunderstorm Warning | ILM | 57 min |
| Sep 1, 4:14 AM EDT | Flash Flood Watch | ILM | 42 hr |
| Sep 1, 5:09 AM EDT | Tropical Storm Watch | ILM | 7 hr |
| Sep 1, 11:25 AM EDT | Tropical Storm Warning | ILM | 39 hr |
| Sep 2, 7:51 AM EDT | Tornado Watch | SPC | 8 hr |
| Sep 2, 10:23 AM EDT | River Flood Warning | ILM | 35 hr |
| Sep 2, 10:23 AM EDT | River Flood Warning | ILM | 48 hr |
| Sep 2, 12:55 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 3:45 PM EDT | Tornado Watch | SPC | 11 hr |
| Sep 2, 6:09 PM EDT | Areal Flood Advisory | ILM | 4 hr |
| Sep 12, 3:36 PM EDT | Areal Flood Advisory | ILM | 54 min |
| Sep 22, 4:30 PM EDT | Areal Flood Advisory | ILM | 60 min |
| Sep 29, 2:03 PM EDT | Special Weather Statement | ILM | 42 min |
| Oct 6, 10:37 AM EDT | Flash Flood Watch | ILM | 59 hr |
| Oct 6, 5:53 PM EDT | Tropical Storm Warning | ILM | 69 hr |
| Oct 7, 10:54 AM EDT | River Flood Warning | ILM | 10 days |
| Oct 7, 10:54 AM EDT | River Flood Warning | ILM | 8 days |
| Oct 7, 10:54 AM EDT | River Flood Warning | ILM | 6 days |
| Oct 8, 1:47 AM EDT | Tornado Warning | ILM | 28 min |
| Oct 8, 2:04 AM EDT | Tornado Warning | ILM | 26 min |
| Oct 8, 5:13 AM EDT | Flash Flood Warning | ILM | 8 hr |
| Oct 8, 10:19 AM EDT | Flash Flood Warning | ILM | 6 hr |
| Oct 8, 4:07 PM EDT | Areal Flood Advisory | ILM | 4 hr |
| Oct 14, 11:18 AM EDT | Areal Flood Warning | ILM | 72 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 19, 3:13 PM EST | Freeze Watch | ILM | 12 hr |
| Nov 20, 3:16 AM EST | Freeze Warning | ILM | 29 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 | 35 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 43 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Warning | 12 |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 12 |
| Winter | |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 2 |
| Heat | |
| Heat Advisory | 14 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Tropical Storm Watch | 1 |
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.