Alert archive / South Carolina / Oconee County
Weather alerts in Oconee County, South Carolina, 2015
109 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Oconee County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 109
- Warnings
- 33
- Watches
- 5
- Advisories
- 9
- Busiest month
- June35 alerts
- Busiest day
- April 20, 201511 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Oconee County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 30 | 24 | 20% | 25 | 76% | 21 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 4 | 0 | 100% | 2 | 0% | |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 263 | 207 | 21% | 515 | 85% | 22 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 63 | 43 | 32% | 144 | 76% | 131 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, 6:20 AM EST | Special Weather Statement | GSP | 25 min |
| Feb 16, 12:05 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 25, 4:10 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 30, 5:56 AM EDT | Special Weather Statement | GSP | 64 min |
| Apr 2, 8:07 PM EDT | Special Weather Statement | GSP | 38 min |
| Apr 9, 5:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Apr 20, 7:09 AM EDT | Special Weather Statement | GSP | 51 min |
| Apr 20, 1:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 20, 1:10 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Apr 20, 1:23 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 20, 2:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Apr 20, 2:48 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Apr 20, 3:02 PM EDT | Severe Thunderstorm Warning | GSP | 28 min |
| Apr 20, 3:21 PM EDT | Flash Flood Warning | GSP | 39 min |
| Apr 20, 3:26 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Apr 20, 4:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Apr 20, 6:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Apr 22, 8:46 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| May 10, 2:59 PM EDT | Special Weather Statement | GSP | 31 min |
| May 10, 3:34 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| May 11, 3:24 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 12, 1:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 18, 3:37 PM EDT | Special Weather Statement | GSP | 23 min |
| May 18, 4:00 PM EDT | Special Weather Statement | GSP | 60 min |
| May 26, 6:22 PM EDT | Special Weather Statement | GSP | 38 min |
| May 26, 6:42 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| May 28, 4:44 PM EDT | Special Weather Statement | GSP | 31 min |
| May 28, 5:23 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 2, 12:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 10:12 PM EDT | Special Weather Statement | GSP | 33 min |
| Jun 2, 10:45 PM EDT | Special Weather Statement | GSP | 30 min |
| Jun 3, 5:38 PM EDT | Severe Thunderstorm Warning | GSP | 37 min |
| Jun 3, 6:16 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Jun 3, 6:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Jun 3, 6:56 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Jun 3, 7:12 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Jun 5, 4:40 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 8, 9:34 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jun 8, 10:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 11, 10:12 PM EDT | Special Weather Statement | GSP | 63 min |
| Jun 17, 4:55 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 18, 1:32 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 3:23 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Jun 18, 5:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Jun 18, 6:28 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 19, 12:53 PM EDT | Special Weather Statement | GSP | 52 min |
| Jun 22, 4:31 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jun 22, 4:48 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jun 24, 2:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 3:09 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Jun 26, 5:35 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jun 26, 5:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 6:03 PM EDT | Special Weather Statement | GSP | 42 min |
| Jun 26, 7:01 PM EDT | Special Weather Statement | GSP | 44 min |
| Jun 26, 7:53 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Jun 27, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 27, 3:46 PM EDT | Special Weather Statement | GSP | 59 min |
| Jun 30, 12:31 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Jun 30, 12:55 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 30, 1:03 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jun 30, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 4:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jun 30, 7:08 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 1, 4:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 1, 6:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 2, 12:57 PM EDT | Special Weather Statement | GSP | 48 min |
| Jul 2, 1:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 2, 1:31 PM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jul 3, 8:55 AM EDT | Special Weather Statement | GSP | 20 min |
| Jul 13, 6:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 14, 12:52 PM EDT | Special Weather Statement | GSP | 38 min |
| Jul 14, 1:14 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 14, 4:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 14, 4:59 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 5:58 PM EDT | Severe Thunderstorm Warning | GSP | 77 min |
| Jul 14, 6:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 6:48 PM EDT | Severe Thunderstorm Warning | GSP | 72 min |
| Jul 18, 2:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 18, 2:56 PM EDT | Severe Thunderstorm Warning | GSP | 16 min |
| Jul 18, 4:48 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jul 18, 5:08 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jul 21, 2:21 PM EDT | Special Weather Statement | GSP | 39 min |
| Jul 27, 6:10 PM EDT | Special Weather Statement | GSP | 35 min |
| Jul 28, 1:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Aug 6, 2:07 PM EDT | Special Weather Statement | GSP | 23 min |
| Aug 6, 2:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 3:20 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 6, 4:51 PM EDT | Severe Thunderstorm Warning | GSP | 23 min |
| Aug 10, 4:25 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Aug 10, 5:27 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Aug 10, 6:31 PM EDT | Severe Thunderstorm Warning | GSP | 59 min |
| Aug 11, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 11, 6:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Aug 23, 1:31 AM EDT | Areal Flood Advisory | GSP | 119 min |
| Sep 29, 2:38 AM EDT | Areal Flood Advisory | GSP | 112 min |
| Sep 30, 5:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Oct 4, 8:33 AM EDT | Areal Flood Advisory | GSP | 3 hr |
| Nov 2, 7:35 AM EST | Areal Flood Warning | GSP | 6 hr |
| Nov 7, 2:18 AM EST | Special Weather Statement | GSP | 57 min |
| Nov 18, 7:24 PM EST | Special Weather Statement | GSP | 66 min |
| Nov 18, 9:51 PM EST | Areal Flood Advisory | GSP | 114 min |
| Dec 14, 11:12 AM EST | Special Weather Statement | GSP | 63 min |
| Dec 14, 11:59 AM EST | Special Weather Statement | GSP | 61 min |
| Dec 24, 8:43 AM EST | Special Weather Statement | GSP | 47 min |
| Dec 24, 10:09 AM EST | Areal Flood Advisory | GSP | 6 hr |
| Dec 24, 10:52 AM EST | Special Weather Statement | GSP | 38 min |
| Dec 25, 2:46 PM EST | Special Weather Statement | GSP | 89 min |
| Dec 28, 9:12 PM EST | Flash Flood Warning | GSP | 3 hr |
| Dec 30, 8:48 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 | 30 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 37 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.