Alert archive / South Carolina / Oconee County
Weather alerts in Oconee County, South Carolina, 2011
171 weather alerts in 2011, 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 2011. Tap one for its archive.
- Alerts
- 171
- Warnings
- 66
- Watches
- 22
- Advisories
- 4
- Busiest month
- June64 alerts
- Busiest day
- May 11, 20119 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 5 tornado warnings covering Oconee County in 2011 had a tornado report inside them.
Oconee County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 1 | 80% | 0 | ||
| Severe thunderstorm warnings | 59 | 51 | 14% | 47 | 91% | 26 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 42 | 11 | 74% | 25 | 96% | 21 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 693 | 551 | 20% | 1,309 | 89% | 26 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 31 | 20 | 35% | 46 | 85% | 105 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 9, 11:56 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 28, 1:29 PM EST | Tornado Watch | SPC | 7 hr |
| Feb 28, 3:57 PM EST | Severe Thunderstorm Warning | GSP | 63 min |
| Feb 28, 4:36 PM EST | Mesoscale Discussion | SPC | 84 min |
| Feb 28, 4:38 PM EST | Severe Thunderstorm Warning | GSP | 67 min |
| Mar 6, 12:35 AM EST | Areal Flood Advisory | GSP | 115 min |
| Mar 6, 2:47 AM EST | Areal Flood Advisory | GSP | 103 min |
| Mar 6, 4:17 AM EST | Flash Flood Warning | GSP | 6 hr |
| Mar 6, 9:49 AM EST | Areal Flood Warning | GSP | 3 hr |
| Mar 6, 12:29 PM EST | Areal Flood Advisory | GSP | 3 hr |
| Mar 19, 3:03 PM EDT | Special Weather Statement | GSP | 42 min |
| Mar 19, 7:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Mar 19, 8:07 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Mar 26, 8:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Mar 26, 9:19 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 4, 9:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| Apr 4, 9:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 4, 11:06 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Apr 4, 11:28 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Apr 5, 12:20 AM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Apr 9, 1:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 9, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 9, 3:43 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Apr 9, 4:29 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Apr 11, 7:42 PM EDT | Mesoscale Discussion | SPC | 33 min |
| Apr 11, 8:08 PM EDT | Tornado Watch | SPC | 7 hr |
| Apr 11, 9:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Apr 12, 1:35 AM EDT | Special Weather Statement | GSP | 25 min |
| Apr 12, 1:55 AM EDT | Special Weather Statement | GSP | 50 min |
| Apr 12, 2:39 AM EDT | Mesoscale Discussion | SPC | 36 min |
| Apr 15, 11:01 PM EDT | Special Weather Statement | GSP | 44 min |
| Apr 16, 5:57 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 20, 7:55 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 20, 8:57 AM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Apr 20, 9:42 AM EDT | Special Weather Statement | GSP | 48 min |
| Apr 21, 3:43 PM EDT | Special Weather Statement | GSP | 32 min |
| Apr 21, 4:16 PM EDT | Special Weather Statement | GSP | 29 min |
| Apr 21, 4:58 PM EDT | Special Weather Statement | GSP | 32 min |
| Apr 25, 3:54 PM EDT | Special Weather Statement | GSP | 51 min |
| Apr 25, 4:11 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Apr 25, 5:37 PM EDT | Severe Thunderstorm Warning | GSP | 68 min |
| Apr 27, 6:41 PM EDT | Mesoscale Discussion | SPC | 34 min |
| Apr 27, 6:52 PM EDT | Tornado Watch | SPC | 9 hr |
| Apr 27, 11:22 PM EDT | Tornado Warning | GSP | 38 min |
| Apr 28, 12:04 AM EDT | Tornado Warning | GSP | 41 min |
| Apr 28, 12:09 AM EDT | Mesoscale Discussion | SPC | 36 min |
| Apr 28, 12:21 AM EDT | Tornado Warning | GSP | 39 min |
| Apr 28, 12:54 AM EDT | Tornado Warning | GSP | 51 min |
| Apr 28, 12:56 AM EDT | Tornado Watch | SPC | 4 hr |
| Apr 28, 1:31 AM EDT | Tornado Warning | GSP | 44 min |
| May 3, 4:45 PM EDT | Special Weather Statement | GSP | 45 min |
| May 3, 5:14 PM EDT | Special Weather Statement | GSP | 46 min |
| May 3, 7:02 PM EDT | Severe Thunderstorm Warning | GSP | 32 min |
| May 10, 10:18 PM EDT | Mesoscale Discussion | SPC | 27 min |
| May 11, 4:09 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| May 11, 4:59 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| May 11, 5:13 PM EDT | Severe Thunderstorm Warning | GSP | 32 min |
| May 11, 5:28 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| May 11, 6:06 PM EDT | Mesoscale Discussion | SPC | 54 min |
| May 11, 6:21 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| May 11, 6:49 PM EDT | Severe Thunderstorm Warning | GSP | 56 min |
| May 11, 6:54 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| May 12, 4:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 5:57 PM EDT | Special Weather Statement | GSP | 48 min |
| May 12, 7:04 PM EDT | Severe Thunderstorm Warning | GSP | 56 min |
| May 13, 3:47 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 13, 4:44 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 13, 4:52 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| May 13, 5:37 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| May 17, 5:31 PM EDT | Special Weather Statement | GSP | 29 min |
| May 17, 5:58 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| May 26, 10:15 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 26, 3:32 PM EDT | Mesoscale Discussion | SPC | 58 min |
| May 26, 4:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 26, 5:10 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 6:20 PM EDT | Special Weather Statement | GSP | 40 min |
| May 26, 7:10 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| May 26, 7:20 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| May 26, 7:39 PM EDT | Severe Thunderstorm Warning | GSP | 66 min |
| Jun 1, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | 36 min |
| Jun 2, 2:25 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Jun 2, 2:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jun 3, 4:12 PM EDT | Severe Thunderstorm Warning | GSP | 63 min |
| Jun 3, 5:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 5:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 5, 5:52 PM EDT | Special Weather Statement | GSP | 38 min |
| Jun 5, 6:06 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 5, 6:59 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| Jun 7, 6:04 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 8, 3:32 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jun 9, 1:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jun 10, 5:21 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 10, 6:38 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jun 11, 3:06 AM EDT | Special Weather Statement | GSP | 24 min |
| Jun 11, 1:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 11, 2:18 PM EDT | Special Weather Statement | GSP | 42 min |
| Jun 11, 3:05 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Jun 11, 6:35 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Jun 12, 2:51 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 12, 3:07 PM EDT | Severe Thunderstorm Warning | GSP | 53 min |
| Jun 12, 3:59 PM EDT | Severe Thunderstorm Warning | GSP | 61 min |
| Jun 12, 4:36 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 15, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 15, 4:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jun 15, 5:46 PM EDT | Severe Thunderstorm Warning | GSP | 29 min |
| Jun 15, 6:53 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 15, 7:06 PM EDT | Severe Thunderstorm Warning | GSP | 54 min |
| Jun 18, 9:38 AM EDT | Mesoscale Discussion | SPC | 97 min |
| Jun 18, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 18, 1:43 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Jun 18, 2:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jun 18, 2:35 PM EDT | Severe Thunderstorm Warning | GSP | 70 min |
| Jun 18, 3:42 PM EDT | Severe Thunderstorm Warning | GSP | 48 min |
| Jun 18, 6:11 PM EDT | Severe Thunderstorm Warning | GSP | 51 min |
| Jun 19, 2:22 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 19, 3:36 PM EDT | Special Weather Statement | GSP | 39 min |
| Jun 19, 4:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 19, 6:58 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 19, 9:41 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 19, 11:55 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Jun 20, 12:31 AM EDT | Severe Thunderstorm Warning | GSP | 44 min |
| Jun 21, 2:11 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jun 22, 4:44 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jun 22, 5:30 PM EDT | Severe Thunderstorm Warning | GSP | 60 min |
| Jun 22, 5:38 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 22, 6:08 PM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Jun 22, 6:11 PM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| Jun 23, 8:28 AM EDT | Special Weather Statement | GSP | 47 min |
| Jun 24, 1:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Jun 24, 2:29 PM EDT | Special Weather Statement | GSP | 46 min |
| Jun 24, 3:17 PM EDT | Special Weather Statement | GSP | 43 min |
| Jun 24, 3:40 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Jun 24, 4:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 24, 4:53 PM EDT | Special Weather Statement | GSP | 52 min |
| Jun 26, 11:34 AM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 26, 1:36 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 4:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jun 26, 5:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 26, 5:23 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Jun 26, 6:29 PM EDT | Mesoscale Discussion | SPC | 46 min |
| Jun 26, 8:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Jun 26, 8:24 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jun 27, 4:47 PM EDT | Severe Thunderstorm Warning | GSP | 58 min |
| Jul 4, 2:13 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Jul 5, 3:01 PM EDT | Special Weather Statement | GSP | 44 min |
| Jul 5, 3:49 PM EDT | Special Weather Statement | GSP | 26 min |
| Jul 5, 4:00 PM EDT | Special Weather Statement | GSP | 30 min |
| Jul 13, 4:00 PM EDT | Special Weather Statement | GSP | 45 min |
| Aug 4, 5:50 PM EDT | Special Weather Statement | GSP | 25 min |
| Aug 8, 3:35 PM EDT | Severe Thunderstorm Warning | GSP | 55 min |
| Aug 12, 1:46 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 8:38 PM EDT | Severe Thunderstorm Warning | GSP | 67 min |
| Aug 13, 2:25 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Aug 13, 4:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 14, 1:34 PM EDT | Special Weather Statement | GSP | 41 min |
| Aug 14, 1:43 PM EDT | Severe Thunderstorm Warning | GSP | 62 min |
| Aug 14, 1:50 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Aug 14, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 18, 2:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 6:09 PM EDT | Special Weather Statement | GSP | 51 min |
| Sep 2, 2:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Sep 5, 3:42 PM EDT | Tornado Watch | SPC | 7 hr |
| Sep 5, 7:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Nov 16, 1:17 PM EST | Mesoscale Discussion | SPC | 118 min |
| Nov 16, 1:35 PM EST | Tornado Watch | SPC | 7 hr |
| Nov 16, 2:50 PM EST | Special Weather Statement | GSP | 40 min |
| Nov 22, 4:24 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Dec 22, 2:02 PM EST | Mesoscale Discussion | SPC | 118 min |
| Dec 22, 3:20 PM EST | Tornado Watch | SPC | 6 hr |
| Dec 22, 6:25 PM EST | Mesoscale Discussion | SPC | 95 min |
| Dec 22, 10:52 PM 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 | 59 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 8 |
| Mesoscale Discussion | 45 |
| Special Weather Statement | 34 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.