Alert archive / North Carolina / Jackson County
Weather alerts in Jackson County, North Carolina, 2009
156 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jackson County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 156
- Warnings
- 35
- Watches
- 27
- Advisories
- 63
- Busiest month
- June23 alerts
- Busiest day
- January 7, 20096 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Jackson County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 9 | 40% | 6 | 100% | 20 min |
| Flash flood warnings | 2 | 1 | 50% | 5 | 0% |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 33 | 8 | 76% | 15 | 93% | 21 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 394 | 237 | 40% | 457 | 86% | 26 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 55 | 40 | 27% | 103 | 73% | 94 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, 8:01 AM EST | Winter Weather Advisory | GSP | 3 hr |
| Jan 2, 8:53 PM EST | Dense Fog Advisory | GSP | 15 hr |
| Jan 5, 11:13 AM EST | Flash Flood Watch | GSP | 47 hr |
| Jan 6, 5:37 PM EST | Tornado Watch | SPC | 3 hr |
| Jan 6, 8:19 PM EST | Areal Flood Advisory | GSP | 116 min |
| Jan 6, 9:12 PM EST | Lake Wind Advisory | GSP | 8 hr |
| Jan 7, 2:33 AM EST | Flash Flood Warning | GSP | 4 hr |
| Jan 7, 5:14 AM EST | Wind Advisory | GSP | 19 hr |
| Jan 7, 5:39 AM EST | Winter Weather Advisory | GSP | 33 hr |
| Jan 7, 3:09 PM EST | Winter Storm Warning | GSP | 24 hr |
| Jan 8, 4:33 AM EST | Lake Wind Advisory | GSP | 22 hr |
| Jan 13, 2:11 AM EST | Winter Weather Advisory | GSP | 25 hr |
| Jan 15, 2:16 AM EST | Lake Wind Advisory | GSP | 10 hr |
| Jan 15, 2:31 AM EST | Wind Chill Advisory | GSP | 33 hr |
| Jan 18, 12:10 AM EST | Winter Weather Advisory | GSP | 11 hr |
| Jan 18, 4:13 AM EST | Winter Storm Watch | GSP | 11 hr |
| Jan 18, 2:56 PM EST | Winter Storm Warning | GSP | 60 hr |
| Jan 18, 2:56 PM EST | Winter Weather Advisory | GSP | 14 hr |
| Jan 20, 2:16 PM EST | Winter Weather Advisory | GSP | 19 hr |
| Jan 28, 3:57 AM EST | Lake Wind Advisory | GSP | 14 hr |
| Jan 30, 2:53 AM EST | Lake Wind Advisory | GSP | 15 hr |
| Feb 2, 3:20 AM EST | Winter Storm Watch | GSP | 24 hr |
| Feb 2, 4:31 PM EST | Winter Storm Warning | GSP | 55 hr |
| Feb 2, 4:31 PM EST | Winter Weather Advisory | GSP | 4 hr |
| Feb 3, 3:31 AM EST | Winter Weather Advisory | GSP | 35 hr |
| Feb 3, 2:26 PM EST | Wind Chill Advisory | GSP | 44 hr |
| Feb 10, 2:51 PM EST | High Wind Watch | GSP | 13 hr |
| Feb 11, 3:22 AM EST | High Wind Warning | GSP | 39 hr |
| Feb 11, 12:17 PM EST | Fire Weather Watch | GSP | 18 hr |
| Feb 11, 2:29 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 11, 4:08 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Feb 11, 5:13 PM EST | Severe Thunderstorm Warning | GSP | 62 min |
| Feb 11, 6:15 PM EST | Severe Thunderstorm Warning | GSP | 60 min |
| Feb 11, 7:07 PM EST | Mesoscale Discussion | SPC | 53 min |
| Feb 12, 3:09 AM EST | Wind Advisory | GSP | 9 hr |
| Feb 18, 3:10 PM EST | Wind Advisory | GSP | 29 hr |
| Feb 19, 5:07 PM EST | Lake Wind Advisory | GSP | 4 hr |
| Feb 21, 3:38 PM EST | Winter Weather Advisory | GSP | 32 hr |
| Feb 28, 4:12 AM EST | Winter Storm Watch | GSP | 25 hr |
| Mar 1, 5:18 AM EST | Winter Storm Warning | GSP | 23 hr |
| Mar 1, 5:18 AM EST | Winter Weather Advisory | GSP | 22 hr |
| Mar 2, 3:17 AM EST | Lake Wind Advisory | GSP | 9 hr |
| Mar 2, 2:45 PM EST | Winter Weather Advisory | GSP | 18 hr |
| Mar 16, 3:16 PM EDT | Dense Fog Advisory | GSP | 18 hr |
| Mar 27, 4:41 AM EDT | Dense Fog Advisory | GSP | 6 hr |
| Mar 29, 4:55 AM EDT | Wind Advisory | GSP | 17 hr |
| Apr 2, 3:06 PM EDT | Wind Advisory | GSP | 27 hr |
| Apr 2, 11:00 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 2, 11:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 3, 12:50 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 6, 4:06 AM EDT | Winter Storm Warning | GSP | 47 hr |
| Apr 6, 4:06 AM EDT | Winter Weather Advisory | GSP | 42 hr |
| Apr 6, 4:17 AM EDT | Lake Wind Advisory | GSP | 16 hr |
| Apr 8, 3:18 AM EDT | Lake Wind Advisory | GSP | 15 hr |
| Apr 10, 3:39 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 7:45 AM EDT | Wind Advisory | GSP | 7 hr |
| Apr 16, 4:03 AM EDT | Frost Advisory | GSP | 28 hr |
| Apr 21, 3:41 AM EDT | Lake Wind Advisory | GSP | 16 hr |
| Apr 22, 8:37 PM EDT | Frost Advisory | GSP | 7 hr |
| Apr 25, 2:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 6, 9:35 AM EDT | Flood Watch | GSP | 18 hr |
| May 6, 10:50 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 6, 11:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| May 8, 9:17 AM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| May 8, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| May 8, 6:32 PM EDT | Tornado Watch | SPC | 7 hr |
| May 8, 6:50 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| May 8, 7:21 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| May 8, 8:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| May 9, 1:47 PM EDT | Severe Thunderstorm Warning | GSP | 35 min |
| May 12, 4:58 AM EDT | Dense Fog Advisory | GSP | 5 hr |
| May 15, 3:21 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 15, 6:46 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| May 16, 7:06 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| May 18, 10:46 AM EDT | Frost Advisory | GSP | 22 hr |
| May 26, 3:41 AM EDT | Flash Flood Watch | GSP | 38 hr |
| May 28, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 28, 4:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| May 28, 7:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 2, 2:11 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 8, 3:24 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 10, 2:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 11, 12:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 11, 2:03 PM EDT | Severe Thunderstorm Warning | GSP | 87 min |
| Jun 11, 2:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jun 11, 3:25 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Jun 15, 1:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 16, 5:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 12:54 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 17, 3:17 PM EDT | Mesoscale Discussion | SPC | 28 min |
| Jun 17, 4:07 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jun 17, 7:22 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jun 18, 10:39 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 18, 1:48 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 18, 3:52 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Jun 18, 4:54 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 21, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 22, 12:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 3:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 2:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 27, 4:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 27, 7:27 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Aug 4, 6:22 PM EDT | Severe Thunderstorm Warning | GSP | 68 min |
| Aug 4, 6:45 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 5, 2:18 PM EDT | Severe Thunderstorm Warning | GSP | 57 min |
| Aug 11, 1:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 9, 12:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Sep 9, 12:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Sep 9, 2:26 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Sep 12, 4:19 AM EDT | Dense Fog Advisory | GSP | 6 hr |
| Sep 20, 3:41 AM EDT | Areal Flood Advisory | GSP | 109 min |
| Sep 20, 4:30 AM EDT | Flash Flood Warning | GSP | 4 hr |
| Sep 20, 8:14 AM EDT | Areal Flood Warning | GSP | 4 hr |
| Sep 20, 11:59 AM EDT | Areal Flood Warning | GSP | 6 hr |
| Sep 20, 5:32 PM EDT | Areal Flood Warning | GSP | 3 hr |
| Sep 20, 6:19 PM EDT | Flood Watch | GSP | 36 hr |
| Sep 21, 2:46 PM EDT | Areal Flood Warning | GSP | 3 hr |
| Sep 21, 5:25 PM EDT | Areal Flood Warning | GSP | 7 hr |
| Sep 26, 3:35 AM EDT | Flash Flood Watch | GSP | 17 hr |
| Oct 6, 9:29 PM EDT | Lake Wind Advisory | GSP | 19 hr |
| Oct 9, 7:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Oct 9, 8:24 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Oct 13, 4:02 AM EDT | Flood Watch | GSP | 30 hr |
| Oct 16, 4:25 AM EDT | Freeze Warning | GSP | 29 hr |
| Oct 17, 4:09 AM EDT | Freeze Warning | GSP | 29 hr |
| Oct 18, 4:14 AM EDT | Freeze Warning | GSP | 29 hr |
| Oct 23, 1:16 PM EDT | Lake Wind Advisory | GSP | 11 hr |
| Oct 27, 5:00 AM EDT | Flash Flood Watch | GSP | 17 hr |
| Nov 9, 2:26 AM EST | Flash Flood Watch | GSP | 3 days |
| Nov 10, 7:27 PM EST | Areal Flood Advisory | GSP | 8 hr |
| Nov 26, 3:54 AM EST | Winter Weather Advisory | GSP | 30 hr |
| Nov 26, 4:00 AM EST | Wind Advisory | GSP | 47 hr |
| Nov 27, 1:53 PM EST | Lake Wind Advisory | GSP | 4 hr |
| Dec 1, 2:54 PM EST | Flash Flood Watch | GSP | 31 hr |
| Dec 1, 3:02 PM EST | Wind Advisory | GSP | 44 hr |
| Dec 3, 3:44 PM EST | Winter Storm Watch | GSP | 23 hr |
| Dec 4, 2:48 PM EST | Winter Storm Warning | GSP | 26 hr |
| Dec 4, 2:48 PM EST | Winter Weather Advisory | GSP | 23 hr |
| Dec 5, 12:18 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 8, 4:18 AM EST | Wind Advisory | GSP | 24 hr |
| Dec 8, 2:31 PM EST | High Wind Warning | GSP | 28 hr |
| Dec 9, 2:48 AM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 9, 3:52 AM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 9, 8:27 AM EST | Dense Fog Advisory | GSP | 93 min |
| Dec 9, 7:07 PM EST | Lake Wind Advisory | GSP | 27 hr |
| Dec 13, 7:18 PM EST | Dense Fog Advisory | GSP | 17 hr |
| Dec 16, 5:07 PM EST | Winter Storm Watch | GSP | 24 hr |
| Dec 17, 3:53 PM EST | Winter Storm Warning | GSP | 3 days |
| Dec 18, 1:09 PM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 18, 1:32 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 19, 2:56 PM EST | Winter Weather Advisory | GSP | 21 hr |
| Dec 23, 3:27 PM EST | Wind Advisory | GSP | 45 hr |
| Dec 25, 3:01 AM EST | High Wind Warning | GSP | 9 hr |
| Dec 25, 3:18 PM EST | Winter Weather Advisory | GSP | 18 hr |
| Dec 28, 4:00 AM EST | Lake Wind Advisory | GSP | 31 hr |
| Dec 30, 2:48 PM EST | Winter Weather Advisory | GSP | 18 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 | 15 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 31 |
| Flooding | |
| Areal Flood Warning | 5 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 6 |
| Flood Watch | 3 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 17 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 1 |
| Lake Wind Advisory | 15 |
| Wind Advisory | 10 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.