Alert archive / North Carolina / Macon County
Weather alerts in Macon County, North Carolina, 2020
129 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Macon County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 129
- Warnings
- 20
- Watches
- 22
- Advisories
- 44
- Busiest month
- April23 alerts
- Busiest day
- April 13, 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.
0 of 1 tornado warnings covering Macon County in 2020 had a tornado report inside them.
Macon County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 7 | 5 | 29% | 1 | 0% | |
| Flash flood warnings | 4 | 2 | 50% | 3 | 100% | 127 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 61 | 13 | 79% | 25 | 72% | 14 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 325 | 183 | 44% | 520 | 75% | 21 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 79 | 42 | 47% | 138 | 71% | 121 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 4, 4:02 AM EST | Wind Advisory | GSP | 30 hr |
| Jan 10, 2:47 PM EST | Wind Advisory | GSP | 34 hr |
| Jan 11, 4:16 PM EST | Mesoscale Discussion | SPC | 89 min |
| Jan 11, 4:48 PM EST | Mesoscale Discussion | SPC | 117 min |
| Jan 11, 5:38 PM EST | Tornado Watch | SPC | 6 hr |
| Jan 11, 5:42 PM EST | Severe Thunderstorm Warning | GSP | 50 min |
| Jan 11, 5:59 PM EST | Severe Thunderstorm Warning | GSP | 61 min |
| Jan 11, 6:10 PM EST | Severe Thunderstorm Warning | GSP | 41 min |
| Jan 11, 6:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Jan 14, 4:53 AM EST | Dense Fog Advisory | GSP | 5 hr |
| Jan 19, 2:37 PM EST | Wind Chill Advisory | GSP | 19 hr |
| Jan 27, 3:36 AM EST | Winter Weather Advisory | GSP | 23 hr |
| Feb 5, 4:20 AM EST | Flash Flood Watch | GSP | 44 hr |
| Feb 6, 5:52 AM EST | Flash Flood Warning | GSP | 10 hr |
| Feb 6, 6:51 AM EST | Special Weather Statement | GSP | 24 min |
| Feb 6, 3:32 PM EST | Flash Flood Warning | GSP | 4 hr |
| Feb 6, 7:12 PM EST | Areal Flood Warning | GSP | 6 hr |
| Feb 6, 9:47 PM EST | Wind Advisory | GSP | 20 hr |
| Feb 7, 2:46 PM EST | Winter Weather Advisory | GSP | 30 hr |
| Feb 8, 3:02 AM EST | Winter Storm Warning | GSP | 16 hr |
| Feb 9, 12:30 AM EST | Freezing Fog Advisory | GSP | 10 hr |
| Feb 9, 3:27 AM EST | Flood Watch | GSP | 36 hr |
| Feb 10, 3:01 PM EST | Flash Flood Watch | GSP | 23 hr |
| Feb 12, 3:45 AM EST | Flash Flood Watch | GSP | 34 hr |
| Feb 13, 9:00 AM EST | Areal Flood Advisory | GSP | 10 hr |
| Feb 19, 3:11 PM EST | Winter Weather Advisory | GSP | 33 hr |
| Feb 26, 3:51 AM EST | Wind Advisory | GSP | 39 hr |
| Feb 27, 2:50 PM EST | Winter Weather Advisory | GSP | 45 hr |
| Mar 18, 2:29 AM EDT | Dense Fog Advisory | GSP | 9 hr |
| Mar 24, 4:24 AM EDT | Flash Flood Watch | GSP | 26 hr |
| Apr 8, 11:16 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 3:00 AM EDT | Special Weather Statement | GSP | 45 min |
| Apr 9, 9:35 PM EDT | Wind Advisory | GSP | 20 hr |
| Apr 12, 3:56 AM EDT | Wind Advisory | GSP | 36 hr |
| Apr 12, 4:12 AM EDT | Flash Flood Watch | GSP | 28 hr |
| Apr 12, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 12, 8:57 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 12, 11:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 13, 12:10 AM EDT | Areal Flood Advisory | GSP | 5 hr |
| Apr 13, 12:31 AM EDT | Areal Flood Advisory | GSP | 8 hr |
| Apr 13, 1:09 AM EDT | Areal Flood Advisory | GSP | 4 hr |
| Apr 13, 1:51 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 13, 1:58 AM EDT | Flash Flood Warning | GSP | 6 hr |
| Apr 13, 3:13 AM EDT | Flash Flood Warning | GSP | 5 hr |
| Apr 13, 7:54 AM EDT | Areal Flood Advisory | GSP | 9 hr |
| Apr 21, 3:03 AM EDT | Frost Advisory | GSP | 31 hr |
| Apr 23, 2:58 AM EDT | Wind Advisory | GSP | 17 hr |
| Apr 25, 6:11 PM EDT | Tornado Watch | SPC | 4 hr |
| Apr 25, 6:51 PM EDT | Special Weather Statement | GSP | 24 min |
| Apr 25, 7:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Apr 25, 7:50 PM EDT | Tornado Warning | GSP | 25 min |
| Apr 25, 8:15 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Apr 27, 2:50 PM EDT | Frost Advisory | GSP | 18 hr |
| May 5, 12:08 AM EDT | Mesoscale Discussion | SPC | 97 min |
| May 5, 3:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| May 5, 3:27 PM EDT | Severe Thunderstorm Warning | GSP | 28 min |
| May 5, 3:52 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| May 6, 7:19 PM EDT | Frost Advisory | GSP | 14 hr |
| May 7, 3:42 AM EDT | Freeze Watch | GSP | 25 hr |
| May 8, 4:12 AM EDT | Freeze Warning | GSP | 30 hr |
| May 8, 2:49 PM EDT | Freeze Watch | GSP | 13 hr |
| May 9, 4:10 AM EDT | Freeze Warning | GSP | 30 hr |
| May 11, 2:37 PM EDT | Frost Advisory | GSP | 19 hr |
| May 25, 4:49 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jun 9, 6:29 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 9, 7:13 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 14, 3:00 PM EDT | Special Weather Statement | GSP | 45 min |
| Jun 15, 12:50 PM EDT | Special Weather Statement | GSP | 25 min |
| Jun 15, 1:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 15, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 3:29 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 21, 6:39 PM EDT | Special Weather Statement | GSP | 36 min |
| Jun 21, 7:11 PM EDT | Special Weather Statement | GSP | 49 min |
| Jun 22, 2:29 PM EDT | Special Weather Statement | GSP | 31 min |
| Jun 22, 5:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 22, 5:28 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 28, 12:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 11:15 PM EDT | Special Weather Statement | GSP | 45 min |
| Jul 4, 4:15 PM EDT | Special Weather Statement | GSP | 30 min |
| Jul 9, 4:12 PM EDT | Special Weather Statement | GSP | 33 min |
| Jul 17, 1:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 12:43 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 12:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:00 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 9:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 23, 1:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 12:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Jul 24, 1:43 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 26, 4:24 PM EDT | Special Weather Statement | GSP | 36 min |
| Jul 31, 5:29 PM EDT | Special Weather Statement | GSP | 46 min |
| Jul 31, 6:46 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jul 31, 9:24 PM EDT | Special Weather Statement | GSP | 51 min |
| Aug 2, 2:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Aug 3, 6:10 AM EDT | Special Weather Statement | GSP | 35 min |
| Aug 5, 1:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 6, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 21, 12:41 AM EDT | Special Weather Statement | GSP | 49 min |
| Aug 21, 4:01 AM EDT | Flash Flood Watch | GSP | 26 hr |
| Aug 23, 3:08 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Sep 16, 4:28 AM EDT | Flood Watch | GSP | 46 min |
| Sep 16, 5:14 AM EDT | Flash Flood Watch | GSP | 39 hr |
| Oct 10, 4:19 AM EDT | Flash Flood Watch | GSP | 42 hr |
| Oct 11, 2:49 AM EDT | Areal Flood Advisory | GSP | 6 hr |
| Oct 11, 8:23 AM EDT | Areal Flood Advisory | GSP | 7 hr |
| Oct 16, 3:44 AM EDT | Freeze Watch | GSP | 7 hr |
| Oct 16, 11:11 AM EDT | Freeze Warning | GSP | 23 hr |
| Oct 17, 2:43 PM EDT | Frost Advisory | GSP | 18 hr |
| Oct 28, 6:08 AM EDT | Flash Flood Watch | GSP | 32 hr |
| Oct 28, 11:23 AM EDT | Tropical Storm Watch | GSP | 3 hr |
| Oct 28, 2:13 PM EDT | Tropical Storm Warning | GSP | 24 hr |
| Oct 29, 5:54 AM EDT | Areal Flood Advisory | GSP | 12 hr |
| Oct 29, 10:51 AM EDT | Areal Flood Advisory | GSP | 13 hr |
| Oct 29, 8:04 PM EDT | Wind Advisory | GSP | 16 hr |
| Oct 30, 2:46 PM EDT | Frost Advisory | GSP | 19 hr |
| Nov 1, 3:58 AM EST | Freeze Warning | GSP | 29 hr |
| Nov 1, 3:58 AM EST | Wind Advisory | GSP | 32 hr |
| Nov 10, 2:30 PM EST | Flood Watch | GSP | 47 hr |
| Nov 12, 12:01 AM EST | Special Weather Statement | GSP | 44 min |
| Nov 12, 12:46 AM EST | Areal Flood Advisory | GSP | 3 hr |
| Nov 15, 1:55 AM EST | Wind Advisory | GSP | 32 hr |
| Nov 30, 3:55 AM EST | Winter Weather Advisory | GSP | 32 hr |
| Dec 15, 4:31 AM EST | Winter Weather Advisory | GSP | 41 hr |
| Dec 21, 3:14 AM EST | Wind Advisory | GSP | 33 hr |
| Dec 21, 2:45 PM EST | High Wind Warning | GSP | 21 hr |
| Dec 23, 3:33 AM EST | Wind Advisory | GSP | 32 hr |
| Dec 23, 3:17 PM EST | Winter Weather Advisory | GSP | 49 hr |
| Dec 24, 2:59 AM EST | Flash Flood Watch | GSP | 12 hr |
| Dec 24, 4:04 AM EST | Wind Chill Advisory | GSP | 53 hr |
| Dec 24, 10:08 AM EST | Areal Flood Advisory | GSP | 6 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 | 7 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 25 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 4 |
| Flash Flood Watch | 10 |
| Flood Watch | 3 |
| Areal Flood Advisory | 14 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 3 |
| Frost Advisory | 6 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 12 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Freezing Fog Advisory | 1 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
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.