Alert archive / North Carolina / Anson County
Weather alerts in Anson County, North Carolina, 2020
152 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Anson County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 152
- Warnings
- 39
- Watches
- 12
- Advisories
- 38
- Busiest month
- May31 alerts
- Busiest day
- February 6, 20209 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 Anson County in 2020 had a tornado report inside them; 0 of 2 tornado reports fell inside a warning.
Anson County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 2 | 0% | |
| Severe thunderstorm warnings | 21 | 12 | 43% | 7 | 57% | 27 min |
| Flash flood warnings | 6 | 3 | 50% | 7 | 71% | 237 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Raleigh, NC: tornado warnings | 32 | 5 | 84% | 9 | 78% | 6 min |
| NWS Raleigh, NC: severe thunderstorm warnings | 164 | 104 | 37% | 380 | 82% | 26 min |
| NWS Raleigh, NC: flash flood warnings | 61 | 40 | 34% | 175 | 85% | 130 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, 5:55 PM EST | Special Weather Statement | RAH | 50 min |
| Jan 11, 9:35 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Jan 11, 10:38 PM EST | Severe Thunderstorm Warning | RAH | 52 min |
| Jan 11, 10:59 PM EST | Mesoscale Discussion | SPC | 91 min |
| Jan 14, 4:55 AM EST | Special Weather Statement | RAH | 65 min |
| Feb 5, 3:09 PM EST | Flood Watch | RAH | 34 hr |
| Feb 6, 9:50 AM EST | Mesoscale Discussion | SPC | 55 min |
| Feb 6, 10:12 AM EST | Tornado Watch | SPC | 7 hr |
| Feb 6, 12:35 PM EST | Severe Thunderstorm Warning | RAH | 55 min |
| Feb 6, 1:08 PM EST | Mesoscale Discussion | SPC | 97 min |
| Feb 6, 2:14 PM EST | River Flood Warning | RAH | 41 hr |
| Feb 6, 2:53 PM EST | Special Weather Statement | RAH | 52 min |
| Feb 6, 3:25 PM EST | Severe Thunderstorm Warning | RAH | 36 min |
| Feb 6, 3:56 PM EST | Flash Flood Warning | RAH | 3 hr |
| Feb 6, 6:55 PM EST | Areal Flood Warning | RAH | 11 hr |
| Feb 6, 9:16 PM EST | Wind Advisory | RAH | 19 hr |
| Feb 13, 10:14 AM EST | Special Weather Statement | RAH | 61 min |
| Feb 13, 10:29 AM EST | Mesoscale Discussion | SPC | 61 min |
| Feb 13, 11:09 AM EST | Special Weather Statement | RAH | 66 min |
| Feb 19, 2:16 PM EST | Winter Weather Advisory | RAH | 44 hr |
| Feb 26, 3:31 AM EST | Dense Fog Advisory | RAH | 5 hr |
| Feb 26, 9:04 AM EST | Dense Fog Advisory | RAH | 116 min |
| Mar 18, 4:25 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Apr 8, 8:29 PM EDT | Special Weather Statement | RAH | 46 min |
| Apr 8, 9:11 PM EDT | Special Weather Statement | RAH | 49 min |
| Apr 9, 6:38 AM EDT | Severe Thunderstorm Warning | RAH | 37 min |
| Apr 10, 10:49 AM EDT | Red Flag Warning | RAH | 7 hr |
| Apr 10, 3:13 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 10, 3:13 PM EDT | Freeze Warning | RAH | 17 hr |
| Apr 12, 3:33 PM EDT | Wind Advisory | RAH | 24 hr |
| Apr 12, 11:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 13, 2:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 13, 5:01 AM EDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 5:21 AM EDT | Severe Thunderstorm Warning | RAH | 39 min |
| Apr 13, 5:52 AM EDT | Severe Thunderstorm Warning | RAH | 68 min |
| Apr 15, 3:06 AM EDT | Frost Advisory | RAH | 29 hr |
| Apr 16, 3:18 PM EDT | Frost Advisory | RAH | 17 hr |
| Apr 25, 8:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Apr 25, 10:57 PM EDT | Severe Thunderstorm Warning | RAH | 63 min |
| Apr 25, 11:24 PM EDT | Special Weather Statement | RAH | 51 min |
| May 5, 4:53 AM EDT | Special Weather Statement | RAH | 52 min |
| May 5, 3:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 5, 3:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 5, 7:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 4:49 PM EDT | Special Weather Statement | RAH | 71 min |
| May 9, 3:57 AM EDT | Frost Advisory | RAH | 28 hr |
| May 19, 12:33 AM EDT | Special Weather Statement | RAH | 57 min |
| May 19, 1:04 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 19, 3:39 PM EDT | Flash Flood Watch | RAH | 60 hr |
| May 20, 9:11 PM EDT | River Flood Warning | RAH | 48 hr |
| May 21, 8:30 AM EDT | Flash Flood Warning | RAH | 5 hr |
| May 21, 12:18 PM EDT | Severe Thunderstorm Warning | RAH | 57 min |
| May 21, 1:15 PM EDT | Severe Thunderstorm Warning | RAH | 60 min |
| May 21, 1:32 PM EDT | Flash Flood Warning | RAH | 11 hr |
| May 21, 2:19 PM EDT | Severe Thunderstorm Warning | RAH | 56 min |
| May 21, 3:26 PM EDT | Special Weather Statement | RAH | 64 min |
| May 22, 12:30 AM EDT | Areal Flood Warning | RAH | 27 hr |
| May 22, 12:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 22, 3:49 PM EDT | Mesoscale Discussion | SPC | 86 min |
| May 22, 4:14 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 22, 4:32 PM EDT | Severe Thunderstorm Warning | RAH | 58 min |
| May 24, 1:44 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 4:24 AM EDT | Flash Flood Watch | RAH | 21 hr |
| May 28, 12:29 AM EDT | River Flood Warning | RAH | 20 hr |
| May 28, 3:41 PM EDT | Special Weather Statement | RAH | 64 min |
| May 28, 6:06 PM EDT | Special Weather Statement | RAH | 54 min |
| May 28, 6:34 PM EDT | Severe Thunderstorm Warning | RAH | 41 min |
| May 29, 12:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 29, 12:50 PM EDT | Severe Thunderstorm Warning | RAH | 55 min |
| May 29, 1:44 PM EDT | Special Weather Statement | RAH | 61 min |
| May 29, 1:50 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 8, 9:41 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jun 10, 6:38 PM EDT | Special Weather Statement | RAH | 52 min |
| Jun 11, 3:59 AM EDT | Flash Flood Watch | RAH | 24 hr |
| Jun 11, 9:43 PM EDT | Severe Thunderstorm Warning | RAH | 62 min |
| Jun 19, 7:01 PM EDT | Special Weather Statement | RAH | 59 min |
| Jun 19, 7:53 PM EDT | Flash Flood Warning | RAH | 6 hr |
| Jun 22, 7:20 PM EDT | Severe Thunderstorm Warning | RAH | 55 min |
| Jun 22, 7:53 PM EDT | Severe Thunderstorm Warning | RAH | 67 min |
| Jun 25, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 28, 5:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 10, 9:48 PM EDT | Severe Thunderstorm Warning | RAH | 47 min |
| Jul 13, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 13, 2:43 PM EDT | Special Weather Statement | RAH | 47 min |
| Jul 13, 3:11 PM EDT | Severe Thunderstorm Warning | RAH | 49 min |
| Jul 13, 3:41 PM EDT | Special Weather Statement | RAH | 49 min |
| Jul 13, 3:48 PM EDT | Flash Flood Warning | RAH | 2 hr |
| Jul 17, 8:03 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Jul 17, 8:39 PM EDT | Special Weather Statement | RAH | 66 min |
| Jul 18, 2:02 PM EDT | Special Weather Statement | RAH | 58 min |
| Jul 18, 3:18 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 18, 6:05 PM EDT | Severe Thunderstorm Warning | RAH | 40 min |
| Jul 19, 2:59 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 20, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 3:23 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 20, 4:33 PM EDT | Special Weather Statement | RAH | 57 min |
| Jul 21, 3:00 PM EDT | Heat Advisory | RAH | 30 hr |
| Jul 24, 5:29 PM EDT | Severe Thunderstorm Warning | RAH | 23 min |
| Jul 31, 3:43 AM EDT | Heat Advisory | RAH | 15 hr |
| Aug 1, 1:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 4:06 AM EDT | Flash Flood Watch | RAH | 52 hr |
| Aug 3, 10:48 AM EDT | Special Weather Statement | RAH | 57 min |
| Aug 3, 5:56 PM EDT | Special Weather Statement | RAH | 64 min |
| Aug 6, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 9, 8:15 PM EDT | Areal Flood Advisory | RAH | 60 min |
| Aug 10, 2:47 PM EDT | Special Weather Statement | RAH | 58 min |
| Aug 10, 4:19 PM EDT | Special Weather Statement | RAH | 56 min |
| Aug 12, 11:19 PM EDT | Areal Flood Advisory | RAH | 116 min |
| Aug 13, 1:22 PM EDT | Areal Flood Advisory | RAH | 2 hr |
| Aug 15, 10:55 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Aug 17, 6:01 PM EDT | Special Weather Statement | RAH | 59 min |
| Aug 17, 7:01 PM EDT | Special Weather Statement | RAH | 89 min |
| Aug 19, 8:10 PM EDT | Special Weather Statement | RAH | 65 min |
| Aug 22, 3:47 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Aug 31, 10:51 AM EDT | Special Weather Statement | RAH | 54 min |
| Aug 31, 12:03 PM EDT | Special Weather Statement | RAH | 57 min |
| Aug 31, 3:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Sep 2, 3:23 AM EDT | Heat Advisory | RAH | 16 hr |
| Sep 11, 5:27 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Sep 16, 4:19 AM EDT | Flash Flood Watch | RAH | 47 hr |
| Sep 17, 1:44 PM EDT | Areal Flood Advisory | RAH | 3 hr |
| Sep 25, 9:02 AM EDT | Areal Flood Advisory | RAH | 73 min |
| Sep 25, 10:46 AM EDT | Areal Flood Advisory | RAH | 59 min |
| Sep 27, 3:21 AM EDT | Dense Fog Advisory | RAH | 6 hr |
| Sep 29, 2:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 29, 4:20 PM EDT | Special Weather Statement | RAH | 55 min |
| Oct 11, 12:55 PM EDT | Special Weather Statement | RAH | 65 min |
| Oct 11, 1:31 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 11, 2:03 PM EDT | Special Weather Statement | RAH | 57 min |
| Oct 11, 2:10 PM EDT | Areal Flood Advisory | RAH | 65 min |
| Oct 11, 2:24 PM EDT | Severe Thunderstorm Warning | RAH | 51 min |
| Oct 11, 2:39 PM EDT | Tornado Warning | RAH | 28 min |
| Oct 11, 9:02 PM EDT | Special Weather Statement | RAH | 58 min |
| Oct 21, 4:36 AM EDT | Dense Fog Advisory | RAH | 5 hr |
| Oct 26, 9:13 PM EDT | Dense Fog Advisory | RAH | 13 hr |
| Oct 28, 2:26 PM EDT | Wind Advisory | RAH | 26 hr |
| Nov 2, 1:59 PM EST | Frost Advisory | RAH | 18 hr |
| Nov 2, 1:59 PM EST | Freeze Warning | RAH | 18 hr |
| Nov 11, 3:08 AM EST | Flash Flood Watch | RAH | 36 hr |
| Nov 12, 9:05 AM EST | Flash Flood Warning | RAH | 7 hr |
| Nov 12, 11:22 AM EST | Special Weather Statement | RAH | 53 min |
| Nov 12, 6:00 PM EST | Areal Flood Advisory | RAH | 3 hr |
| Nov 12, 6:22 PM EST | Areal Flood Warning | RAH | 41 hr |
| Nov 12, 7:19 PM EST | River Flood Warning | RAH | 29 hr |
| Nov 12, 8:52 PM EST | Areal Flood Warning | RAH | 19 hr |
| Nov 26, 8:46 PM EST | Dense Fog Advisory | RAH | 12 hr |
| Nov 30, 3:37 AM EST | Wind Advisory | RAH | 13 hr |
| Nov 30, 8:34 AM EST | Special Weather Statement | RAH | 56 min |
| Dec 4, 9:23 PM EST | Special Weather Statement | RAH | 52 min |
| Dec 17, 2:57 AM EST | Dense Fog Advisory | RAH | 7 hr |
| Dec 24, 10:35 PM EST | Special Weather Statement | RAH | 85 min |
| Dec 25, 12:05 AM EST | Special Weather Statement | RAH | 85 min |
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 | 21 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 40 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 6 |
| River Flood Warning | 4 |
| Flash Flood Watch | 6 |
| Flood Watch | 1 |
| Areal Flood Advisory | 13 |
| Winter | |
| Winter Weather Advisory | 1 |
| Heat | |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 5 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
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.