Alert archive / Oklahoma / Coal County
Weather alerts in Coal County, Oklahoma, 2020
148 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Coal County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 148
- Warnings
- 40
- Watches
- 21
- Advisories
- 38
- Busiest month
- April33 alerts
- Busiest day
- April 22, 202015 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 3 tornado warnings covering Coal County in 2020 had a tornado report inside them.
Coal County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 2 | 33% | 0 | ||
| Severe thunderstorm warnings | 28 | 10 | 64% | 4 | 50% | 19 min |
| Flash flood warnings | 3 | 1 | 67% | 3 | 33% | 34 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 3, 1:21 AM CST | Dense Fog Advisory | OUN | 5 hr |
| Jan 9, 4:06 AM CST | Flood Watch | OUN | 44 hr |
| 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 10, 1:44 PM CST | Mesoscale Discussion | SPC | 91 min |
| Jan 10, 2:02 PM CST | Areal Flood Advisory | OUN | 4 hr |
| Jan 10, 2:08 PM CST | Severe Thunderstorm Warning | OUN | 41 min |
| Jan 10, 2:17 PM CST | Severe Thunderstorm Warning | OUN | 43 min |
| Jan 10, 3:45 PM CST | Areal Flood Advisory | OUN | 3 hr |
| Jan 10, 4:03 PM CST | Flash Flood Warning | OUN | 3 hr |
| Jan 10, 4:28 PM CST | Flash Flood Warning | OUN | 6 hr |
| Jan 10, 10:31 PM CST | Areal Flood Warning | OUN | 5 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, 1:51 AM CST | Dense Fog Advisory | OUN | 9 hr |
| Jan 22, 6:00 PM CST | Dense Fog Advisory | OUN | 11 hr |
| Jan 26, 10:34 PM CST | Dense Fog Advisory | OUN | 14 hr |
| Feb 3, 3:21 AM CST | Winter Storm Watch | OUN | 32 hr |
| Feb 4, 11:43 AM CST | Winter Weather Advisory | OUN | 34 hr |
| Feb 9, 5:13 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 10:05 AM CDT | Flood Watch | OUN | 32 hr |
| Mar 19, 2:08 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Mar 19, 5:30 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Mar 19, 2:15 PM CDT | Severe Thunderstorm Warning | OUN | 30 min |
| Mar 19, 2:24 PM CDT | Tornado Watch | SPC | 8 hr |
| Mar 23, 1:53 AM CDT | Dense Fog Advisory | OUN | 9 hr |
| Apr 11, 8:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 11, 9:01 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 11, 11:22 PM CDT | Special Weather Statement | OUN | 38 min |
| Apr 11, 11:41 PM CDT | Special Weather Statement | OUN | 64 min |
| Apr 11, 11:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 12, 1:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Apr 12, 2:51 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 12, 3:17 PM CDT | Severe Thunderstorm Warning | OUN | 26 min |
| Apr 12, 3:44 PM CDT | Special Weather Statement | OUN | 46 min |
| Apr 12, 4:08 PM CDT | Severe Thunderstorm Warning | OUN | 36 min |
| Apr 14, 2:09 PM CDT | Freeze Warning | OUN | 19 hr |
| Apr 20, 1:06 AM CDT | Dense Fog Advisory | OUN | 11 hr |
| Apr 22, 1:21 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 22, 5:22 AM CDT | Special Weather Statement | OUN | 38 min |
| Apr 22, 8:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Apr 22, 8:53 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 22, 10:41 AM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Apr 22, 11:29 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 22, 1:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 22, 2:33 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 22, 4:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 22, 4:51 PM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| Apr 22, 4:55 PM CDT | Tornado Warning | OUN | 50 min |
| Apr 22, 4:59 PM CDT | Tornado Warning | OUN | 46 min |
| Apr 22, 5:23 PM CDT | Severe Thunderstorm Warning | OUN | 24 min |
| Apr 22, 5:24 PM CDT | Tornado Warning | OUN | 51 min |
| Apr 22, 6:11 PM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Apr 24, 3:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 24, 3:44 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 28, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 28, 8:29 PM CDT | Severe Thunderstorm Warning | OUN | 46 min |
| Apr 28, 9:04 PM CDT | Severe Thunderstorm Warning | OUN | 41 min |
| Apr 28, 9:43 PM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| May 4, 2:32 PM CDT | Tornado Watch | SPC | 9 hr |
| May 4, 6:51 PM CDT | Severe Thunderstorm Warning | OUN | 24 min |
| May 4, 7:57 PM CDT | Severe Thunderstorm Warning | OUN | 24 min |
| May 4, 7:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 11:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 11:25 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 8, 1:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 8, 1:58 AM CDT | Severe Thunderstorm Warning | OUN | 62 min |
| May 8, 2:30 AM CDT | Severe Thunderstorm Warning | OUN | 60 min |
| May 8, 2:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 8:46 PM CDT | Dense Fog Advisory | OUN | 13 hr |
| May 14, 2:45 AM CDT | Special Weather Statement | OUN | 30 min |
| May 15, 10:59 AM CDT | Flood Watch | OUN | 16 hr |
| May 15, 1:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 1:39 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 15, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 15, 3:47 PM CDT | Special Weather Statement | OUN | 43 min |
| May 15, 5:23 PM CDT | Areal Flood Advisory | OUN | 2 hr |
| May 22, 5:01 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 22, 4:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 7:00 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 22, 9:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 22, 11:28 PM CDT | High Wind Warning | OUN | 3 hr |
| May 22, 11:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 2:47 AM CDT | Special Weather Statement | OUN | 43 min |
| Jun 5, 12:32 PM CDT | Heat Advisory | OUN | 6 hr |
| Jun 6, 10:50 AM CDT | Heat Advisory | OUN | 8 hr |
| Jun 22, 12:42 AM CDT | Mesoscale Discussion | SPC | 33 min |
| Jun 22, 1:27 AM CDT | Special Weather Statement | OUN | 63 min |
| Jun 23, 10:02 AM CDT | Special Weather Statement | OUN | 28 min |
| Jun 29, 4:40 PM CDT | Heat Advisory | OUN | 3 days |
| Jul 2, 4:13 PM CDT | Special Weather Statement | OUN | 47 min |
| Jul 2, 4:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 2:57 PM CDT | Heat Advisory | OUN | 70 hr |
| Jul 10, 9:40 AM CDT | Mesoscale Discussion | SPC | 95 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 12, 12:41 AM CDT | Severe Thunderstorm Warning | OUN | 49 min |
| Jul 12, 12:42 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 12, 1:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 12, 1:20 AM CDT | Severe Thunderstorm Warning | OUN | 55 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 30, 3:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 30, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 30, 5:03 PM CDT | Special Weather Statement | OUN | 27 min |
| Jul 30, 5:28 PM CDT | Severe Thunderstorm Warning | OUN | 32 min |
| Jul 30, 6:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 30, 6:19 PM CDT | Severe Thunderstorm Warning | OUN | 26 min |
| Jul 30, 6:30 PM CDT | Areal Flood Advisory | OUN | 3 hr |
| Jul 30, 6:56 PM CDT | Severe Thunderstorm Warning | OUN | 19 min |
| Jul 30, 7:06 PM CDT | Severe Thunderstorm Warning | OUN | 39 min |
| Jul 30, 7:24 PM CDT | Flash Flood Warning | OUN | 3 hr |
| Jul 30, 7:37 PM CDT | Severe Thunderstorm Warning | OUN | 53 min |
| Aug 5, 5:49 AM CDT | Special Weather Statement | OUN | 26 min |
| Aug 5, 7:21 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Aug 9, 10:29 AM CDT | Heat Advisory | OUN | 8 hr |
| Aug 11, 3:34 PM CDT | Special Weather Statement | OUN | 41 min |
| Aug 11, 3:36 PM CDT | Special Weather Statement | OUN | 39 min |
| Aug 11, 3:47 PM CDT | Severe Thunderstorm Warning | OUN | 43 min |
| Aug 11, 4:04 PM CDT | Severe Thunderstorm Warning | OUN | 41 min |
| Aug 11, 4:21 PM CDT | Special Weather Statement | OUN | 39 min |
| Aug 11, 4:23 PM CDT | Special Weather Statement | OUN | 52 min |
| Aug 11, 4:37 PM CDT | Severe Thunderstorm Warning | OUN | 38 min |
| Aug 12, 3:10 AM CDT | Heat Advisory | OUN | 64 hr |
| Aug 14, 2:52 AM CDT | Heat Advisory | OUN | 40 hr |
| Aug 16, 12:18 PM CDT | Heat Advisory | OUN | 7 hr |
| Aug 16, 2:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 27, 2:12 PM CDT | Heat Advisory | OUN | 30 hr |
| Aug 28, 2:28 PM CDT | Heat Advisory | OUN | 30 hr |
| Aug 29, 3:00 AM CDT | Excessive Heat Warning | OUN | 17 hr |
| Aug 29, 5:07 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 6:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 31, 2:36 PM CDT | Flood Watch | OUN | 55 hr |
| Aug 31, 11:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 1, 6:48 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Sep 1, 9:50 AM CDT | Areal Flood Advisory | OUN | 3 hr |
| Sep 11, 10:16 PM CDT | Dense Fog Advisory | OUN | 12 hr |
| Sep 27, 11:29 AM CDT | Wind Advisory | OUN | 14 hr |
| Sep 27, 5:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 27, 8:31 PM CDT | Special Weather Statement | OUN | 44 min |
| Sep 27, 8:48 PM CDT | Severe Thunderstorm Warning | OUN | 42 min |
| Oct 29, 1:31 PM CDT | Freeze Warning | OUN | 19 hr |
| Nov 1, 5:30 PM CST | Frost Advisory | OUN | 16 hr |
| Nov 24, 5:17 PM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 24, 7:39 PM CST | Severe Thunderstorm Warning | OUN | 51 min |
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 | 28 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 32 |
| Special Weather Statement | 17 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 3 |
| Flood Watch | 4 |
| Areal Flood Advisory | 9 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 2 |
| Heat | |
| Excessive Heat Warning | 2 |
| Heat Advisory | 14 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
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.