Alert archive / Oklahoma / Jefferson County
Weather alerts in Jefferson County, Oklahoma, 2010
110 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 110
- Warnings
- 31
- Watches
- 20
- Advisories
- 37
- Busiest month
- May21 alerts
- Busiest day
- May 10, 20105 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
2 of 2 tornado warnings covering Jefferson County in 2010 had a tornado report inside them.
Jefferson County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 2 | 0% | 0 | ||
| Severe thunderstorm warnings | 16 | 9 | 44% | 3 | 67% | 31 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Norman, OK: tornado warnings | 73 | 32 | 56% | 51 | 92% | 24 min |
| NWS Norman, OK: severe thunderstorm warnings | 379 | 157 | 59% | 406 | 73% | 26 min |
| NWS Norman, OK: flash flood warnings | 35 | 14 | 60% | 27 | 89% | 92 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 3:31 AM CST | Wind Chill Advisory | OUN | 3 days |
| Jan 6, 6:31 PM CST | Winter Weather Advisory | OUN | 10 hr |
| Jan 15, 3:21 AM CST | Dense Fog Advisory | OUN | 10 hr |
| Jan 15, 8:50 PM CST | Dense Fog Advisory | OUN | 12 hr |
| Jan 16, 8:06 PM CST | Dense Fog Advisory | OUN | 16 hr |
| Jan 20, 8:23 PM CST | Severe Thunderstorm Warning | OUN | 52 min |
| Jan 20, 8:57 PM CST | Severe Thunderstorm Warning | OUN | 48 min |
| Jan 23, 3:35 PM CST | Mesoscale Discussion | SPC | 55 min |
| Jan 25, 11:36 AM CST | Winter Storm Watch | OUN | 63 hr |
| Jan 27, 3:50 AM CST | Winter Storm Warning | OUN | 56 hr |
| Jan 28, 3:03 AM CST | Winter Weather Advisory | OUN | 43 hr |
| Jan 30, 3:03 PM CST | Freezing Fog Advisory | OUN | 21 hr |
| Jan 31, 3:06 PM CST | Freezing Fog Advisory | OUN | 21 hr |
| Feb 2, 9:32 PM CST | Freezing Fog Advisory | OUN | 12 hr |
| Feb 4, 5:30 PM CST | Dense Fog Advisory | OUN | 13 hr |
| Feb 10, 4:03 PM CST | Winter Weather Advisory | OUN | 30 hr |
| Feb 11, 6:51 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 11, 9:06 AM CST | Winter Storm Warning | OUN | 15 hr |
| Feb 12, 9:10 PM CST | Dense Fog Advisory | OUN | 12 hr |
| Feb 14, 3:23 AM CST | Dense Fog Advisory | OUN | 4 hr |
| Mar 8, 1:42 PM CST | Mesoscale Discussion | SPC | 93 min |
| Mar 10, 4:37 AM CST | Red Flag Warning | OUN | 13 hr |
| Mar 10, 7:44 AM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 17, 3:16 AM CDT | Dense Fog Advisory | OUN | 8 hr |
| Mar 18, 3:20 PM CDT | Winter Storm Watch | OUN | 37 hr |
| Mar 19, 3:46 PM CDT | Winter Weather Advisory | OUN | 46 hr |
| Mar 19, 8:51 PM CDT | Severe Thunderstorm Warning | OUN | 29 min |
| Mar 26, 8:51 AM CDT | Fire Weather Watch | OUN | 26 hr |
| Mar 26, 2:40 PM CDT | Wind Advisory | OUN | 28 hr |
| Mar 29, 4:32 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Mar 29, 4:00 PM CDT | Red Flag Warning | OUN | 29 hr |
| Mar 30, 4:34 AM CDT | Fire Weather Watch | OUN | 24 hr |
| Apr 1, 3:09 PM CDT | Fire Weather Watch | OUN | 12 hr |
| Apr 1, 11:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 2, 3:11 AM CDT | Red Flag Warning | OUN | 17 hr |
| Apr 2, 6:12 AM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 2, 6:17 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 6, 4:50 AM CDT | Wind Advisory | OUN | 14 hr |
| Apr 6, 8:53 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 6, 11:22 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Apr 7, 2:19 PM CDT | Frost Advisory | OUN | 19 hr |
| Apr 16, 10:29 AM CDT | Flood Watch | OUN | 19 hr |
| May 7, 4:16 AM CDT | Wind Advisory | OUN | 9 hr |
| May 9, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 1:25 PM CDT | Tornado Watch | SPC | 9 hr |
| May 10, 4:51 PM CDT | Severe Thunderstorm Warning | OUN | 54 min |
| May 10, 5:40 PM CDT | Severe Thunderstorm Warning | OUN | 35 min |
| May 10, 5:49 PM CDT | Tornado Warning | OUN | 26 min |
| May 10, 5:56 PM CDT | Tornado Warning | OUN | 49 min |
| May 10, 8:05 PM CDT | Severe Thunderstorm Warning | OUN | 55 min |
| May 11, 3:47 PM CDT | Tornado Watch | SPC | 6 hr |
| May 13, 1:59 AM CDT | Mesoscale Discussion | SPC | 31 min |
| May 13, 2:04 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 13, 2:21 AM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| May 13, 2:46 AM CDT | Severe Thunderstorm Warning | OUN | 59 min |
| May 13, 5:02 AM CDT | Mesoscale Discussion | SPC | 28 min |
| May 14, 2:06 AM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| May 14, 3:46 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 14, 8:45 AM CDT | Areal Flood Warning | OUN | 4 hr |
| May 14, 8:58 AM CDT | Flood Watch | OUN | 30 hr |
| May 19, 1:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| May 19, 3:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 19, 7:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 13, 2:14 PM CDT | Flash Flood Watch | OUN | 38 hr |
| Jun 14, 1:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 14, 1:34 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 14, 3:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 27, 5:47 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jun 28, 5:32 AM CDT | Areal Flood Advisory | OUN | 4 hr |
| Jul 6, 8:19 PM CDT | River Flood Warning | OUN | 42 hr |
| Jul 7, 4:12 AM CDT | Flash Flood Watch | OUN | 72 hr |
| Jul 8, 4:39 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 9, 2:31 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 9, 8:38 PM CDT | River Flood Warning | OUN | 70 hr |
| Jul 13, 12:27 PM CDT | Heat Advisory | OUN | 55 hr |
| Jul 14, 5:28 AM CDT | Excessive Heat Warning | OUN | 38 hr |
| Jul 16, 4:13 AM CDT | Heat Advisory | OUN | 63 hr |
| Aug 5, 12:36 PM CDT | Heat Advisory | OUN | 10 days |
| Aug 15, 1:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 4:23 AM CDT | Heat Advisory | OUN | 39 hr |
| Aug 21, 8:33 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 22, 4:30 AM CDT | Heat Advisory | OUN | 39 hr |
| Aug 23, 4:05 PM CDT | Severe Thunderstorm Warning | OUN | 55 min |
| Sep 2, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 2, 6:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 2, 8:20 PM CDT | Severe Thunderstorm Warning | OUN | 55 min |
| Sep 2, 9:07 PM CDT | Severe Thunderstorm Warning | OUN | 68 min |
| Sep 2, 9:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 7, 3:54 AM CDT | Flash Flood Watch | OUN | 48 hr |
| Sep 8, 5:36 PM CDT | Tornado Watch | SPC | 7 hr |
| Sep 12, 4:36 PM CDT | Severe Thunderstorm Warning | OUN | 26 min |
| Sep 13, 4:39 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Sep 16, 6:48 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| Oct 10, 3:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Oct 22, 10:03 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Oct 22, 2:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Oct 22, 2:43 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 22, 7:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Oct 23, 7:29 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 23, 8:12 AM CDT | Severe Thunderstorm Warning | OUN | 27 min |
| Oct 25, 4:20 AM CDT | Wind Advisory | OUN | 15 hr |
| Oct 28, 4:37 AM CDT | Frost Advisory | OUN | 28 hr |
| Nov 4, 1:36 PM CDT | Freeze Warning | OUN | 19 hr |
| Nov 5, 2:01 PM CDT | Freeze Warning | OUN | 18 hr |
| Nov 13, 2:53 PM CST | Frost Advisory | OUN | 17 hr |
| Nov 17, 2:40 PM CST | Freeze Warning | OUN | 17 hr |
| Nov 18, 3:50 PM CST | Frost Advisory | OUN | 16 hr |
| Nov 25, 7:40 AM CST | Winter Weather Advisory | OUN | 4 hr |
| Dec 11, 1:20 AM CST | Dense Fog Advisory | OUN | 5 hr |
| Dec 20, 4:32 AM CST | Red Flag Warning | OUN | 13 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.