Alert archive / Oklahoma / Oklahoma County
Weather alerts in Oklahoma County, Oklahoma, 2020
217 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Oklahoma County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 217
- Warnings
- 60
- Watches
- 20
- Advisories
- 55
- Busiest month
- July42 alerts
- Busiest day
- April 28, 202011 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Oklahoma County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 46 | 27 | 41% | 30 | 87% | 18 min |
| Flash flood warnings | 3 | 3 | 0% | 3 | 100% | 33 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Norman, OK: tornado warnings | 34 | 9 | 74% | 16 | 75% | 13 min |
| NWS Norman, OK: severe thunderstorm warnings | 742 | 300 | 60% | 846 | 87% | 24 min |
| NWS Norman, OK: flash flood warnings | 55 | 22 | 60% | 37 | 86% | 40 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 10, 3:50 AM CST | Winter Weather Advisory | OUN | 31 hr |
| Jan 10, 9:12 AM CST | Mesoscale Discussion | SPC | 93 min |
| Jan 10, 10:42 AM CST | Tornado Watch | SPC | 10 hr |
| Jan 13, 7:54 AM CST | Dense Fog Advisory | OUN | 2 hr |
| Jan 13, 10:12 AM CST | Dense Fog Advisory | OUN | 108 min |
| Jan 13, 7:02 PM CST | Dense Fog Advisory | OUN | 16 hr |
| Jan 15, 3:14 PM CST | Winter Weather Advisory | OUN | 44 hr |
| Jan 22, 6:00 PM CST | Dense Fog Advisory | OUN | 11 hr |
| Feb 3, 3:21 AM CST | Winter Storm Watch | OUN | 32 hr |
| Feb 4, 4:46 AM CST | Winter Storm Warning | OUN | 39 hr |
| Feb 5, 2:02 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 16, 8:44 PM CST | Dense Fog Advisory | OUN | 14 hr |
| Mar 14, 7:11 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Mar 18, 1:10 AM CDT | Dense Fog Advisory | OUN | 9 hr |
| Mar 18, 1:43 PM CDT | Wind Advisory | OUN | 41 hr |
| Mar 18, 8:12 PM CDT | Special Weather Statement | OUN | 33 min |
| Mar 18, 8:40 PM CDT | Special Weather Statement | OUN | 35 min |
| Mar 18, 11:16 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Mar 19, 12:02 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Mar 19, 12:32 AM CDT | Flash Flood Warning | OUN | 5 hr |
| Mar 19, 3:23 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 19, 3:42 AM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Mar 19, 8:43 AM CDT | River Flood Warning | OUN | 12 hr |
| Mar 23, 1:53 AM CDT | Dense Fog Advisory | OUN | 9 hr |
| Mar 27, 12:59 PM CDT | Special Weather Statement | OUN | 31 min |
| Mar 27, 1:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 1:01 PM CDT | Severe Thunderstorm Warning | OUN | 29 min |
| Mar 27, 1:24 PM CDT | Severe Thunderstorm Warning | OUN | 36 min |
| Mar 27, 1:36 PM CDT | Severe Thunderstorm Warning | OUN | 27 min |
| Mar 27, 1:58 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Mar 28, 3:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 4:21 AM CDT | Severe Thunderstorm Warning | OUN | 24 min |
| Mar 28, 4:45 AM CDT | Severe Thunderstorm Warning | OUN | 30 min |
| Mar 28, 5:15 AM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Apr 3, 10:48 AM CDT | Special Weather Statement | OUN | 72 min |
| Apr 11, 2:09 PM CDT | Wind Advisory | OUN | 32 hr |
| Apr 12, 3:23 AM CDT | Freeze Warning | OUN | 31 hr |
| Apr 13, 2:27 PM CDT | Freeze Warning | OUN | 19 hr |
| Apr 14, 2:09 PM CDT | Freeze Warning | OUN | 19 hr |
| Apr 20, 1:06 AM CDT | Dense Fog Advisory | OUN | 11 hr |
| Apr 20, 3:38 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 20, 4:18 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| Apr 20, 4:58 PM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Apr 20, 5:54 PM CDT | Special Weather Statement | OUN | 36 min |
| Apr 20, 6:06 PM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| Apr 21, 6:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 21, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 21, 9:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 21, 11:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 22, 8:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 22, 8:39 AM CDT | Special Weather Statement | OUN | 36 min |
| Apr 22, 8:53 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 22, 10:01 AM CDT | Special Weather Statement | OUN | 29 min |
| Apr 22, 12:03 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| Apr 22, 3:56 PM CDT | Special Weather Statement | OUN | 34 min |
| Apr 28, 1:55 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 28, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 28, 4:37 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Apr 28, 5:15 PM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Apr 28, 5:18 PM CDT | Severe Thunderstorm Warning | OUN | 27 min |
| Apr 28, 5:43 PM CDT | Severe Thunderstorm Warning | OUN | 25 min |
| Apr 28, 5:49 PM CDT | Severe Thunderstorm Warning | OUN | 26 min |
| Apr 28, 5:52 PM CDT | Severe Thunderstorm Warning | OUN | 25 min |
| Apr 28, 6:03 PM CDT | Severe Thunderstorm Warning | OUN | 27 min |
| Apr 28, 6:12 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Apr 28, 6:54 PM CDT | Severe Thunderstorm Warning | OUN | 36 min |
| Apr 28, 7:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 29, 10:16 AM CDT | Wind Advisory | OUN | 3 hr |
| May 4, 3:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 7, 7:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 7, 11:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 11:18 PM CDT | Special Weather Statement | OUN | 27 min |
| May 8, 12:02 AM CDT | Special Weather Statement | OUN | 28 min |
| May 8, 12:22 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 8, 12:32 AM CDT | Special Weather Statement | OUN | 28 min |
| May 8, 1:09 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 12, 8:46 PM CDT | Dense Fog Advisory | OUN | 13 hr |
| May 13, 8:23 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 13, 11:38 PM CDT | Severe Thunderstorm Warning | OUN | 35 min |
| May 14, 12:18 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| May 14, 12:54 AM CDT | Special Weather Statement | OUN | 81 min |
| May 14, 1:32 AM CDT | High Wind Warning | OUN | 5 hr |
| May 15, 10:59 AM CDT | Flood Watch | OUN | 16 hr |
| May 21, 9:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 22, 3:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| May 22, 4:24 AM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| May 22, 5:07 AM CDT | Severe Thunderstorm Warning | OUN | 38 min |
| May 22, 5:39 AM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| May 23, 9:33 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 23, 11:57 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| May 24, 12:42 AM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| May 24, 7:37 AM CDT | Special Weather Statement | OUN | 23 min |
| May 28, 6:10 PM CDT | Special Weather Statement | OUN | 35 min |
| Jun 4, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 7:52 PM CDT | Special Weather Statement | OUN | 38 min |
| Jun 4, 8:09 PM CDT | Severe Thunderstorm Warning | OUN | 51 min |
| Jun 4, 8:39 PM CDT | Special Weather Statement | OUN | 51 min |
| Jun 4, 10:08 PM CDT | Special Weather Statement | OUN | 52 min |
| Jun 8, 2:31 AM CDT | Wind Advisory | OUN | 52 hr |
| Jun 19, 10:36 AM CDT | Special Weather Statement | OUN | 24 min |
| Jun 19, 11:21 AM CDT | Areal Flood Advisory | OUN | 114 min |
| Jun 19, 11:27 AM CDT | Special Weather Statement | OUN | 33 min |
| Jun 19, 12:34 PM CDT | Areal Flood Advisory | OUN | 116 min |
| Jun 21, 6:01 AM CDT | Special Weather Statement | OUN | 29 min |
| Jun 21, 6:14 AM CDT | Severe Thunderstorm Warning | OUN | 46 min |
| Jun 21, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 21, 11:17 PM CDT | Special Weather Statement | OUN | 43 min |
| Jun 21, 11:23 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Jun 29, 4:40 PM CDT | Heat Advisory | OUN | 3 days |
| Jul 2, 11:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 3, 10:51 PM CDT | Special Weather Statement | OUN | 39 min |
| Jul 3, 11:29 PM CDT | Severe Thunderstorm Warning | OUN | 31 min |
| Jul 4, 1:39 AM CDT | Special Weather Statement | OUN | 36 min |
| Jul 4, 2:10 AM CDT | Special Weather Statement | OUN | 35 min |
| Jul 4, 2:44 AM CDT | Special Weather Statement | OUN | 31 min |
| Jul 4, 2:54 AM CDT | Severe Thunderstorm Warning | OUN | 36 min |
| Jul 4, 3:28 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 8, 2:57 PM CDT | Heat Advisory | OUN | 70 hr |
| Jul 10, 7:39 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 9:39 AM CDT | Special Weather Statement | OUN | 36 min |
| Jul 10, 9:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 10, 9:53 AM CDT | Severe Thunderstorm Warning | OUN | 52 min |
| Jul 10, 10:09 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 10, 10:38 AM CDT | Severe Thunderstorm Warning | OUN | 67 min |
| Jul 10, 10:45 AM CDT | Severe Thunderstorm Warning | OUN | 45 min |
| Jul 10, 11:12 AM CDT | Flash Flood Warning | OUN | 3 hr |
| Jul 10, 11:13 AM CDT | Severe Thunderstorm Warning | OUN | 47 min |
| Jul 10, 1:14 PM CDT | Heat Advisory | OUN | 3 days |
| Jul 11, 11:40 AM CDT | Excessive Heat Warning | OUN | 9 hr |
| Jul 11, 6:08 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 11, 9:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 11, 10:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 11, 11:33 PM CDT | Severe Thunderstorm Warning | OUN | 57 min |
| Jul 12, 12:06 AM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| Jul 12, 1:30 AM CDT | Special Weather Statement | OUN | 45 min |
| Jul 12, 1:37 AM CDT | Severe Thunderstorm Warning | OUN | 38 min |
| Jul 12, 2:14 AM CDT | Severe Thunderstorm Warning | OUN | 46 min |
| Jul 12, 2:41 AM CDT | Severe Thunderstorm Warning | OUN | 31 min |
| Jul 13, 2:39 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 13, 5:43 AM CDT | Special Weather Statement | OUN | 32 min |
| Jul 14, 12:42 AM CDT | Heat Advisory | OUN | 19 hr |
| Jul 16, 8:38 AM CDT | Heat Advisory | OUN | 11 hr |
| Jul 16, 8:19 PM CDT | Heat Advisory | OUN | 24 hr |
| Jul 21, 6:09 PM CDT | Special Weather Statement | OUN | 51 min |
| Jul 27, 4:42 AM CDT | Flood Watch | OUN | 57 hr |
| Jul 27, 2:15 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 27, 10:56 PM CDT | Areal Flood Advisory | OUN | 5 hr |
| Jul 30, 4:48 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 30, 5:46 AM CDT | Special Weather Statement | OUN | 29 min |
| Jul 30, 6:15 AM CDT | Special Weather Statement | OUN | 30 min |
| Jul 30, 3:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 5, 1:43 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 10:56 PM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Aug 10, 11:34 PM CDT | Special Weather Statement | OUN | 56 min |
| Aug 11, 12:00 AM CDT | Severe Thunderstorm Warning | OUN | 50 min |
| Aug 11, 12:29 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 12, 3:10 AM CDT | Heat Advisory | OUN | 64 hr |
| Aug 16, 11:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 26, 4:13 PM CDT | Special Weather Statement | OUN | 32 min |
| Aug 26, 4:32 PM CDT | Special Weather Statement | OUN | 28 min |
| Aug 26, 4:56 PM CDT | Special Weather Statement | OUN | 34 min |
| Aug 27, 3:30 PM CDT | Special Weather Statement | OUN | 45 min |
| Aug 31, 2:36 PM CDT | Flood Watch | OUN | 55 hr |
| Aug 31, 3:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 31, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Aug 31, 3:55 PM CDT | Special Weather Statement | OUN | 35 min |
| Aug 31, 3:57 PM CDT | Severe Thunderstorm Warning | OUN | 48 min |
| Aug 31, 4:44 PM CDT | Severe Thunderstorm Warning | OUN | 28 min |
| Aug 31, 5:21 PM CDT | Severe Thunderstorm Warning | OUN | 28 min |
| Aug 31, 5:33 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 31, 6:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 31, 6:16 PM CDT | Special Weather Statement | OUN | 29 min |
| Aug 31, 8:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 31, 8:47 PM CDT | Special Weather Statement | OUN | 43 min |
| Aug 31, 9:05 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 31, 10:36 PM CDT | Special Weather Statement | OUN | 24 min |
| Aug 31, 10:42 PM CDT | Flash Flood Warning | OUN | 4 hr |
| Aug 31, 11:00 PM CDT | Special Weather Statement | OUN | 30 min |
| Aug 31, 11:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 1, 12:06 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Sep 1, 2:44 AM CDT | Areal Flood Warning | OUN | 3 hr |
| Sep 1, 5:17 AM CDT | River Flood Advisory | OUN | 15 hr |
| Sep 1, 11:20 AM CDT | River Flood Advisory | OUN | 22 hr |
| Sep 11, 10:16 PM CDT | Dense Fog Advisory | OUN | 12 hr |
| Sep 24, 6:32 AM CDT | Dense Fog Advisory | OUN | 2 hr |
| Sep 27, 11:29 AM CDT | Wind Advisory | OUN | 14 hr |
| Oct 10, 3:28 AM CDT | Dense Fog Advisory | OUN | 7 hr |
| Oct 11, 1:29 PM CDT | Wind Advisory | OUN | 15 hr |
| Oct 23, 4:19 AM CDT | Freeze Watch | OUN | 9 hr |
| Oct 23, 1:35 PM CDT | Frost Advisory | OUN | 19 hr |
| Oct 24, 3:13 AM CDT | Freeze Watch | OUN | 35 hr |
| Oct 25, 4:06 AM CDT | Winter Weather Advisory | OUN | 62 hr |
| Oct 25, 3:27 PM CDT | Winter Storm Watch | OUN | 17 hr |
| Oct 26, 8:28 AM CDT | Ice Storm Warning | OUN | 56 hr |
| Oct 26, 11:28 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 27, 4:19 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 27, 8:40 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 27, 1:05 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 28, 7:33 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Oct 28, 3:46 PM CDT | Wind Advisory | OUN | 24 hr |
| Nov 6, 3:52 AM CST | Dense Fog Advisory | OUN | 6 hr |
| Nov 14, 2:29 AM CST | Wind Advisory | OUN | 15 hr |
| Nov 14, 7:04 PM CST | Wind Advisory | OUN | 3 hr |
| Nov 18, 3:01 AM CST | Red Flag Warning | OUN | 15 hr |
| Nov 24, 12:31 PM CST | Mesoscale Discussion | SPC | 119 min |
| Nov 24, 1:50 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Nov 24, 5:17 PM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 24, 5:54 PM CST | Special Weather Statement | OUN | 36 min |
| Nov 24, 6:32 PM CST | Special Weather Statement | OUN | 28 min |
| Nov 24, 6:45 PM CST | Special Weather Statement | OUN | 15 min |
| Dec 11, 12:51 PM CST | Winter Weather Advisory | OUN | 53 hr |
| Dec 12, 3:01 AM CST | Winter Storm Warning | OUN | 36 hr |
| Dec 13, 7:13 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 13, 12:00 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 14, 3:53 AM CST | Winter Weather Advisory | OUN | 41 hr |
| Dec 23, 2:43 AM CST | Wind Advisory | OUN | 15 hr |
| Dec 31, 2:59 PM CST | Mesoscale Discussion | SPC | 4 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 | 46 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 38 |
| Special Weather Statement | 44 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 3 |
| River Flood Warning | 1 |
| Flood Watch | 3 |
| Areal Flood Advisory | 17 |
| River Flood Advisory | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 7 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.