Alert archive / South Carolina / Oconee County
Weather alerts in Oconee County, South Carolina, 2017
124 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 124
- Warnings
- 27
- Watches
- 5
- Advisories
- 9
- Busiest month
- July36 alerts
- Busiest day
- March 21, 20176 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 Oconee County in 2017 had a tornado report inside them.
Oconee County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 25 | 18 | 28% | 27 | 70% | 28 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Greenville-Spartanburg, SC: tornado warnings | 35 | 12 | 66% | 46 | 93% | 19 min |
| NWS Greenville-Spartanburg, SC: severe thunderstorm warnings | 286 | 227 | 21% | 736 | 76% | 20 min |
| NWS Greenville-Spartanburg, SC: flash flood warnings | 23 | 14 | 39% | 50 | 64% | 48 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 6, 6:13 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 22, 9:46 PM EST | Mesoscale Discussion | SPC | 89 min |
| Mar 1, 2:07 PM EST | Mesoscale Discussion | SPC | 113 min |
| Mar 1, 3:02 PM EST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 1, 5:09 PM EST | Severe Thunderstorm Warning | GSP | 51 min |
| Mar 1, 5:50 PM EST | Severe Thunderstorm Warning | GSP | 40 min |
| Mar 1, 6:21 PM EST | Mesoscale Discussion | SPC | 114 min |
| Mar 21, 2:53 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 21, 3:33 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 21, 4:41 PM EDT | Special Weather Statement | GSP | 34 min |
| Mar 21, 5:05 PM EDT | Severe Thunderstorm Warning | GSP | 40 min |
| Mar 21, 5:28 PM EDT | Severe Thunderstorm Warning | GSP | 47 min |
| Mar 21, 6:15 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Mar 21, 9:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Mar 26, 4:27 PM EDT | Special Weather Statement | GSP | 48 min |
| Mar 28, 12:08 AM EDT | Severe Thunderstorm Warning | GSP | 52 min |
| Mar 30, 10:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Mar 30, 11:47 PM EDT | Tornado Warning | GSP | 43 min |
| Mar 31, 1:00 AM EDT | Special Weather Statement | GSP | 45 min |
| Apr 3, 10:07 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 3, 11:07 AM EDT | Special Weather Statement | GSP | 23 min |
| Apr 3, 1:15 PM EDT | Special Weather Statement | GSP | 45 min |
| Apr 5, 11:19 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Apr 5, 11:37 PM EDT | Severe Thunderstorm Warning | GSP | 38 min |
| Apr 5, 11:55 PM EDT | Severe Thunderstorm Warning | GSP | 50 min |
| Apr 14, 1:34 PM EDT | Special Weather Statement | GSP | 41 min |
| Apr 23, 5:13 PM EDT | Special Weather Statement | GSP | 62 min |
| Apr 23, 8:11 PM EDT | Special Weather Statement | GSP | 2 hr |
| Apr 23, 8:24 PM EDT | Special Weather Statement | GSP | 111 min |
| Apr 23, 10:23 PM EDT | Special Weather Statement | GSP | 52 min |
| Apr 27, 3:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Apr 29, 3:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Apr 29, 4:19 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Apr 29, 4:56 PM EDT | Special Weather Statement | GSP | 49 min |
| Apr 29, 6:16 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| May 1, 12:59 PM EDT | Special Weather Statement | GSP | 31 min |
| May 6, 5:46 PM EDT | Special Weather Statement | GSP | 29 min |
| May 12, 2:06 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 7:26 PM EDT | Special Weather Statement | GSP | 34 min |
| May 13, 12:56 PM EDT | Special Weather Statement | GSP | 64 min |
| May 13, 1:00 PM EDT | Special Weather Statement | GSP | 60 min |
| May 19, 5:33 PM EDT | Special Weather Statement | GSP | 27 min |
| May 20, 8:00 PM EDT | Special Weather Statement | GSP | 30 min |
| May 20, 8:30 PM EDT | Special Weather Statement | GSP | 30 min |
| May 22, 2:23 PM EDT | Special Weather Statement | GSP | 37 min |
| May 22, 3:33 PM EDT | Areal Flood Advisory | GSP | 117 min |
| May 23, 11:28 PM EDT | Special Weather Statement | GSP | 32 min |
| May 24, 10:04 AM EDT | Tornado Watch | SPC | 11 hr |
| May 24, 3:02 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 24, 4:45 PM EDT | Special Weather Statement | GSP | 45 min |
| May 24, 5:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| May 27, 11:16 PM EDT | Mesoscale Discussion | SPC | 89 min |
| May 28, 12:11 AM EDT | Severe Thunderstorm Warning | GSP | 64 min |
| May 28, 12:13 AM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 29, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 29, 4:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 6:10 PM EDT | Special Weather Statement | GSP | 35 min |
| Jun 14, 1:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 3:23 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 15, 1:46 PM EDT | Special Weather Statement | GSP | 29 min |
| Jun 15, 3:10 PM EDT | Special Weather Statement | GSP | 50 min |
| Jun 15, 4:53 PM EDT | Severe Thunderstorm Warning | GSP | 34 min |
| Jun 15, 5:02 PM EDT | Severe Thunderstorm Warning | GSP | 43 min |
| Jun 22, 10:20 PM EDT | Special Weather Statement | GSP | 40 min |
| Jun 22, 10:53 PM EDT | Special Weather Statement | GSP | 37 min |
| Jun 23, 8:43 PM EDT | Special Weather Statement | GSP | 32 min |
| Jun 23, 9:26 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jul 1, 3:23 PM EDT | Special Weather Statement | GSP | 37 min |
| Jul 2, 2:15 PM EDT | Special Weather Statement | GSP | 30 min |
| Jul 2, 5:47 PM EDT | Special Weather Statement | GSP | 28 min |
| Jul 2, 6:17 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 4, 4:48 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 5, 4:08 PM EDT | Special Weather Statement | GSP | 52 min |
| Jul 5, 6:08 PM EDT | Special Weather Statement | GSP | 52 min |
| Jul 5, 6:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 6, 2:32 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 6, 3:10 PM EDT | Severe Thunderstorm Warning | GSP | 65 min |
| Jul 6, 5:11 PM EDT | Special Weather Statement | GSP | 49 min |
| Jul 6, 5:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 8, 2:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 5:49 PM EDT | Special Weather Statement | GSP | 26 min |
| Jul 14, 7:31 PM EDT | Special Weather Statement | GSP | 29 min |
| Jul 14, 7:56 PM EDT | Severe Thunderstorm Warning | GSP | 49 min |
| Jul 14, 9:06 PM EDT | Areal Flood Advisory | GSP | 114 min |
| Jul 15, 1:38 PM EDT | Mesoscale Discussion | SPC | 67 min |
| Jul 15, 3:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Jul 15, 4:15 PM EDT | Severe Thunderstorm Warning | GSP | 45 min |
| Jul 16, 8:26 PM EDT | Special Weather Statement | GSP | 34 min |
| Jul 16, 9:18 PM EDT | Special Weather Statement | GSP | 27 min |
| Jul 18, 2:32 PM EDT | Special Weather Statement | GSP | 28 min |
| Jul 18, 2:51 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Jul 19, 5:09 PM EDT | Special Weather Statement | GSP | 36 min |
| Jul 22, 4:20 PM EDT | Special Weather Statement | GSP | 25 min |
| Jul 23, 11:36 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 3:18 PM EDT | Severe Thunderstorm Warning | GSP | 42 min |
| Jul 23, 4:06 PM EDT | Severe Thunderstorm Warning | GSP | 39 min |
| Jul 25, 10:32 PM EDT | Special Weather Statement | GSP | 43 min |
| Jul 25, 10:34 PM EDT | Severe Thunderstorm Warning | GSP | 41 min |
| Jul 25, 11:14 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Jul 25, 11:22 PM EDT | Areal Flood Advisory | GSP | 113 min |
| Jul 27, 3:38 PM EDT | Special Weather Statement | GSP | 37 min |
| Jul 27, 4:17 PM EDT | Severe Thunderstorm Warning | GSP | 29 min |
| Jul 28, 1:44 PM EDT | Special Weather Statement | GSP | 46 min |
| Aug 7, 9:02 PM EDT | Special Weather Statement | GSP | 28 min |
| Aug 7, 9:51 PM EDT | Special Weather Statement | GSP | 24 min |
| Aug 11, 11:27 PM EDT | Special Weather Statement | GSP | 48 min |
| Aug 11, 11:55 PM EDT | Areal Flood Advisory | GSP | 110 min |
| Aug 12, 12:13 AM EDT | Flash Flood Warning | GSP | 3 hr |
| Aug 13, 9:03 PM EDT | Special Weather Statement | GSP | 27 min |
| Aug 14, 10:49 PM EDT | Special Weather Statement | GSP | 41 min |
| Sep 5, 3:36 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Sep 5, 6:46 PM EDT | Special Weather Statement | GSP | 29 min |
| Sep 5, 7:14 PM EDT | Special Weather Statement | GSP | 31 min |
| Sep 5, 7:44 PM EDT | Special Weather Statement | GSP | 31 min |
| Sep 20, 4:59 PM EDT | Severe Thunderstorm Warning | GSP | 46 min |
| Sep 21, 3:35 PM EDT | Special Weather Statement | GSP | 25 min |
| Sep 21, 4:05 PM EDT | Special Weather Statement | GSP | 25 min |
| Oct 8, 2:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 8, 3:39 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Oct 23, 11:58 AM EDT | Areal Flood Advisory | GSP | 9 hr |
| Oct 23, 1:09 PM EDT | Special Weather Statement | GSP | 51 min |
| Oct 28, 8:28 PM EDT | Areal Flood Advisory | GSP | 2 hr |
| Oct 28, 10:29 PM EDT | Areal Flood Advisory | GSP | 3 hr |
| Oct 28, 10:39 PM EDT | Areal Flood Advisory | GSP | 3 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 | 25 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 4 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 20 |
| Special Weather Statement | 63 |
| Flooding | |
| Flash Flood Warning | 1 |
| Areal Flood Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.