Alert archive / Oklahoma / Seminole County

Weather alerts in Seminole County, Oklahoma, 2022

202 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Seminole County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts: 202
Warnings: 54
Watches: 30
Advisories: 56
Busiest month: May54 alerts
Busiest day: May 5, 202219 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 10 tornado warnings covering Seminole County in 2022 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 11 minutes after it went out.

Seminole County, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	10	2	80%	1	100%	11 min
Severe thunderstorm warnings	23	8	65%	1	100%	30 min
Flash flood warnings	7	2	71%	0

Each office's whole area, 2022

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Norman, OK: tornado warnings	72	11	85%	17	82%	12 min
NWS Norman, OK: severe thunderstorm warnings	650	201	69%	483	84%	25 min
NWS Norman, OK: flash flood warnings	58	15	74%	31	87%	53 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 14, 3:15 AM CST	Wind Advisory	OUN	38 hr
Jan 31, 7:46 AM CST	Winter Storm Watch	OUN	27 hr
Feb 1, 10:46 AM CST	Winter Storm Warning	OUN	61 hr
Feb 2, 2:51 AM CST	Wind Chill Advisory	OUN	57 hr
Feb 2, 2:45 PM CST	Mesoscale Discussion	SPC	3 hr
Feb 2, 6:25 PM CST	Mesoscale Discussion	SPC	4 hr
Feb 2, 10:47 PM CST	Mesoscale Discussion	SPC	4 hr
Feb 16, 10:26 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Feb 21, 6:41 PM CST	Mesoscale Discussion	SPC	3 hr
Feb 21, 7:22 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Feb 22, 4:18 AM CST	Winter Storm Watch	OUN	10 hr
Feb 22, 2:36 PM CST	Winter Storm Warning	OUN	48 hr
Feb 23, 3:58 AM CST	Mesoscale Discussion	SPC	6 hr
Feb 23, 10:29 AM CST	Mesoscale Discussion	SPC	5 hr
Mar 10, 3:21 AM CST	Winter Weather Advisory	OUN	37 hr
Mar 17, 3:34 PM CDT	Mesoscale Discussion	SPC	116 min
Mar 17, 3:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Mar 17, 7:10 PM CDT	Mesoscale Discussion	SPC	65 min
Mar 17, 8:23 PM CDT	Special Weather Statement	OUN	37 min
Mar 17, 8:28 PM CDT	Severe Thunderstorm Warning	OUN	47 min
Mar 17, 9:22 PM CDT	Mesoscale Discussion	SPC	83 min
Mar 29, 6:53 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 29, 10:25 PM CDT	Mesoscale Discussion	SPC	95 min
Mar 29, 11:19 PM CDT	Tornado Warning	OUN	26 min
Mar 29, 11:43 PM CDT	Special Weather Statement	OUN	32 min
Mar 29, 11:52 PM CDT	Tornado Watch	SPC	8 hr
Apr 4, 10:35 AM CDT	Special Weather Statement	OUN	25 min
Apr 4, 12:29 PM CDT	Mesoscale Discussion	SPC	91 min
Apr 4, 2:13 PM CDT	Special Weather Statement	OUN	32 min
Apr 4, 4:42 PM CDT	Areal Flood Advisory	OUN	5 hr
Apr 4, 8:41 PM CDT	River Flood Advisory	OUN	76 min
Apr 4, 10:01 PM CDT	River Flood Warning	OUN	15 hr
Apr 5, 12:14 AM CDT	Dense Fog Advisory	OUN	9 hr
Apr 10, 3:19 AM CDT	Wind Advisory	OUN	15 hr
Apr 13, 6:02 AM CDT	Special Weather Statement	OUN	28 min
Apr 13, 6:30 AM CDT	Special Weather Statement	OUN	30 min
Apr 13, 6:55 AM CDT	Special Weather Statement	OUN	35 min
Apr 13, 7:31 AM CDT	Special Weather Statement	OUN	29 min
Apr 13, 9:25 PM CDT	Frost Advisory	OUN	12 hr
Apr 15, 6:26 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 15, 8:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 20, 3:46 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 23, 2:19 AM CDT	Flood Watch	OUN	48 hr
Apr 23, 7:48 PM CDT	Mesoscale Discussion	SPC	87 min
Apr 23, 8:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	62 min
Apr 23, 9:12 PM CDT	Areal Flood Advisory	OUN	3 hr
Apr 23, 11:36 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Apr 24, 2:19 AM CDT	Mesoscale Discussion	SPC	116 min
Apr 28, 3:05 PM CDT	Wind Advisory	OUN	29 hr
Apr 29, 2:23 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 29, 4:46 PM CDT	Mesoscale Discussion	SPC	59 min
Apr 29, 5:00 PM CDT	Tornado Watch	SPC	3 hr
Apr 29, 10:32 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Apr 30, 1:44 AM CDT	Special Weather Statement	OUN	31 min
Apr 30, 2:00 AM CDT	Severe Thunderstorm Warning	OUN	30 min
May 2, 10:31 AM CDT	Areal Flood Advisory	OUN	3 hr
May 2, 1:30 PM CDT	Mesoscale Discussion	SPC	2 hr
May 2, 2:02 PM CDT	Tornado Watch	SPC	8 hr
May 2, 5:43 PM CDT	Areal Flood Advisory	OUN	5 hr
May 2, 7:36 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	39 min
May 2, 7:43 PM CDT	Tornado Warning	OUN	47 min
May 2, 8:20 PM CDT	Mesoscale Discussion	SPC	85 min
May 2, 8:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	53 min
May 2, 8:22 PM CDT	Tornado Warning	OUN	23 min
May 2, 9:13 PM CDT	Severe Thunderstorm Warning	OUN	47 min
May 3, 2:20 PM CDT	Flood Watch	OUN	49 hr
May 4, 9:01 AM CDT	River Flood Warning	OUN	39 hr
May 4, 1:26 PM CDT	Tornado Watch	SPC	8 hr
May 4, 6:11 PM CDT	Mesoscale Discussion	SPC	94 min
May 4, 6:17 PM CDT	Tornado Warning	OUN	43 min
May 4, 6:36 PM CDT	Tornado Warning Tornado observed	OUN	39 min
May 4, 6:58 PM CDT	Areal Flood Advisory	OUN	3 hr
May 4, 7:08 PM CDT	Tornado Warning	OUN	35 min
May 4, 7:19 PM CDT	Mesoscale Discussion	SPC	56 min
May 4, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	39 min
May 4, 7:53 PM CDT	Areal Flood Advisory	OUN	3 hr
May 4, 8:05 PM CDT	Tornado Warning	OUN	40 min
May 4, 8:24 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	51 min
May 4, 8:30 PM CDT	Flash Flood Warning	OUN	5 hr
May 4, 8:30 PM CDT	Tornado Warning	OUN	45 min
May 4, 8:42 PM CDT	Flash Flood Warning	OUN	6 hr
May 4, 9:13 PM CDT	Mesoscale Discussion	SPC	92 min
May 4, 9:16 PM CDT	Severe Thunderstorm Warning	OUN	14 min
May 4, 9:41 PM CDT	Tornado Watch	SPC	6 hr
May 4, 9:53 PM CDT	Flash Flood Warning	OUN	5 hr
May 4, 11:33 PM CDT	Mesoscale Discussion	SPC	117 min
May 5, 1:42 AM CDT	Mesoscale Discussion	SPC	2 hr
May 5, 3:20 AM CDT	Areal Flood Advisory	OUN	5 hr
May 5, 10:31 AM CDT	Mesoscale Discussion	SPC	119 min
May 5, 10:38 AM CDT	Severe Thunderstorm Warning	OUN	52 min
May 5, 11:10 AM CDT	Areal Flood Advisory	OUN	3 hr
May 5, 11:34 PM CDT	River Flood Advisory	OUN	10 hr
May 13, 7:32 AM CDT	Special Weather Statement	OUN	28 min
May 13, 7:47 AM CDT	Special Weather Statement	OUN	28 min
May 13, 8:10 AM CDT	Areal Flood Advisory	OUN	3 hr
May 13, 8:17 AM CDT	Special Weather Statement	OUN	28 min
May 13, 9:38 AM CDT	Flash Flood Warning	OUN	3 hr
May 13, 9:59 AM CDT	Special Weather Statement	OUN	16 min
May 13, 10:39 AM CDT	Areal Flood Advisory	OUN	3 hr
May 13, 11:17 AM CDT	Flash Flood Warning	OUN	3 hr
May 13, 11:55 AM CDT	Severe Thunderstorm Warning	OUN	50 min
May 13, 12:42 PM CDT	Severe Thunderstorm Warning	OUN	48 min
May 13, 12:51 PM CDT	Areal Flood Advisory	OUN	3 hr
May 15, 3:23 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 15, 5:46 PM CDT	Mesoscale Discussion	SPC	89 min
May 20, 3:50 PM CDT	Mesoscale Discussion	SPC	2 hr
May 20, 7:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 24, 8:12 AM CDT	River Flood Advisory	OUN	23 hr
May 30, 7:44 AM CDT	Wind Advisory	OUN	5 hr
Jun 5, 10:29 AM CDT	Special Weather Statement	OUN	46 min
Jun 6, 1:47 AM CDT	Mesoscale Discussion	SPC	88 min
Jun 7, 7:44 AM CDT	Mesoscale Discussion	SPC	3 hr
Jun 7, 7:53 AM CDT	Severe Thunderstorm Warning	OUN	52 min
Jun 7, 7:59 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 7, 8:04 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OUN	41 min
Jun 7, 9:48 AM CDT	River Flood Advisory	OUN	4 hr
Jun 7, 11:05 AM CDT	Areal Flood Warning	OUN	3 hr
Jun 8, 7:29 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 8, 7:39 AM CDT	Flood Watch	OUN	5 hr
Jun 8, 9:44 AM CDT	Special Weather Statement	OUN	31 min
Jun 8, 10:06 AM CDT	Severe Thunderstorm Warning	OUN	39 min
Jun 8, 10:21 AM CDT	Flash Flood Warning	OUN	3 hr
Jun 8, 10:36 AM CDT	Mesoscale Discussion	SPC	84 min
Jun 8, 10:37 AM CDT	Flash Flood Warning	OUN	3 hr
Jun 8, 2:18 PM CDT	River Flood Warning	OUN	7 hr
Jun 9, 11:40 AM CDT	Flood Watch	OUN	19 hr
Jun 10, 1:06 AM CDT	Mesoscale Discussion	SPC	54 min
Jun 10, 1:07 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 10, 2:50 AM CDT	Severe Thunderstorm Warning	OUN	40 min
Jun 10, 2:56 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 10, 3:22 AM CDT	Special Weather Statement	OUN	38 min
Jun 10, 5:16 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	44 min
Jun 10, 5:59 AM CDT	Special Weather Statement	OUN	31 min
Jun 10, 2:56 PM CDT	Heat Advisory	OUN	52 hr
Jun 12, 2:32 AM CDT	Excessive Heat Warning	OUN	16 hr
Jun 12, 1:53 PM CDT	Heat Advisory	OUN	29 hr
Jun 18, 9:42 PM CDT	Special Weather Statement	OUN	33 min
Jun 18, 9:52 PM CDT	Severe Thunderstorm Warning	OUN	38 min
Jun 22, 9:58 AM CDT	Heat Advisory	OUN	9 hr
Jul 5, 1:07 PM CDT	Heat Advisory	OUN	31 hr
Jul 5, 1:07 PM CDT	Heat Advisory	OUN	55 hr
Jul 6, 2:42 PM CDT	Heat Advisory	OUN	53 hr
Jul 14, 2:05 AM CDT	Heat Advisory	OUN	42 hr
Jul 16, 2:29 AM CDT	Heat Advisory	OUN	42 hr
Jul 17, 2:32 AM CDT	Excessive Heat Warning	OUN	66 hr
Jul 19, 2:01 AM CDT	Excessive Heat Warning	OUN	42 hr
Jul 20, 2:33 PM CDT	Heat Advisory	OUN	29 hr
Jul 21, 4:01 PM CDT	Heat Advisory	OUN	28 hr
Jul 22, 3:34 AM CDT	Heat Advisory	OUN	40 hr
Jul 22, 3:34 AM CDT	Heat Advisory	OUN	64 hr
Jul 22, 6:03 PM CDT	Special Weather Statement	OUN	27 min
Jul 22, 6:55 PM CDT	Special Weather Statement	OUN	35 min
Jul 24, 3:23 AM CDT	Heat Advisory	OUN	41 hr
Jul 24, 2:46 PM CDT	Heat Advisory	OUN	53 hr
Jul 25, 2:39 PM CDT	Heat Advisory	OUN	53 hr
Jul 26, 4:07 AM CDT	Excessive Heat Warning	OUN	16 hr
Jul 26, 2:02 PM CDT	Excessive Heat Warning	OUN	30 hr
Jul 28, 5:02 PM CDT	Severe Thunderstorm Warning	OUN	43 min
Jul 28, 5:43 PM CDT	Special Weather Statement	OUN	47 min
Jul 28, 6:14 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	46 min
Aug 1, 2:11 PM CDT	Heat Advisory	OUN	30 hr
Aug 2, 3:57 AM CDT	Heat Advisory	OUN	40 hr
Aug 4, 4:11 AM CDT	Heat Advisory	OUN	16 hr
Aug 4, 2:16 PM CDT	Heat Advisory	OUN	30 hr
Aug 5, 2:42 PM CDT	Heat Advisory	OUN	29 hr
Aug 9, 11:22 PM CDT	Special Weather Statement	OUN	23 min
Aug 15, 12:12 PM CDT	Heat Advisory	OUN	31 hr
Aug 16, 4:54 PM CDT	Mesoscale Discussion	SPC	3 hr
Oct 15, 5:01 PM CDT	Mesoscale Discussion	SPC	119 min
Oct 15, 7:36 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Oct 15, 9:29 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 15, 11:37 PM CDT	Special Weather Statement	OUN	23 min
Oct 15, 11:46 PM CDT	Mesoscale Discussion	SPC	89 min
Oct 16, 3:07 PM CDT	Freeze Watch	OUN	23 hr
Oct 16, 3:25 PM CDT	Freeze Watch	OUN	35 hr
Oct 18, 2:48 AM CDT	Freeze Warning	OUN	30 hr
Oct 20, 3:38 PM CDT	Fire Weather Watch	OUN	12 hr
Oct 20, 3:38 PM CDT	Red Flag Warning	OUN	28 hr
Oct 24, 7:51 AM CDT	Mesoscale Discussion	SPC	84 min
Oct 24, 10:27 AM CDT	Special Weather Statement	OUN	48 min
Oct 24, 10:40 AM CDT	Severe Thunderstorm Warning	OUN	50 min
Oct 24, 3:39 PM CDT	Wind Advisory	OUN	16 hr
Nov 2, 6:52 AM CDT	Dense Fog Advisory	OUN	3 hr
Nov 4, 1:02 PM CDT	Tornado Watch	SPC	7 hr
Nov 11, 2:43 AM CST	Freeze Warning	OUN	30 hr
Dec 2, 1:34 PM CST	Wind Advisory	OUN	13 hr
Dec 5, 3:01 AM CST	Dense Fog Advisory	OUN	8 hr
Dec 5, 10:58 PM CST	Dense Fog Advisory	OUN	12 hr
Dec 8, 2:14 AM CST	Dense Fog Advisory	OUN	11 hr
Dec 13, 3:07 AM CST	Mesoscale Discussion	SPC	113 min
Dec 13, 3:58 AM CST	Tornado Watch	SPC	7 hr
Dec 13, 5:28 AM CST	Severe Thunderstorm Warning Considerable damage threat	OUN	47 min
Dec 13, 6:08 AM CST	Tornado Warning	OUN	32 min
Dec 13, 6:21 AM CST	Tornado Warning	OUN	39 min
Dec 13, 6:30 AM CST	Severe Thunderstorm Warning	OUN	45 min
Dec 13, 7:14 AM CST	Areal Flood Advisory	OUN	3 hr
Dec 19, 11:49 AM CST	Wind Chill Watch	OUN	40 hr
Dec 21, 3:46 AM CST	Wind Chill Advisory	OUN	56 hr
Dec 21, 5:53 AM CST	Freezing Fog Advisory	OUN	6 hr
Dec 21, 2:30 PM CST	Wind Advisory	OUN	22 hr
Dec 21, 2:37 PM CST	Winter Weather Advisory	OUN	25 hr
Dec 28, 3:07 AM CST	Wind Advisory	OUN	15 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	23
Tornado Warning	10
Severe Thunderstorm Watch	13
Tornado Watch	7
Mesoscale Discussion	38
Special Weather Statement	24
Flooding
Areal Flood Warning	1
Flash Flood Warning	7
River Flood Warning	3
Flood Watch	4
Areal Flood Advisory	12
River Flood Advisory	4
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	2
Heat
Excessive Heat Warning	5
Heat Advisory	21
Cold
Freeze Warning	2
Freeze Watch	2
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	2
Wind and dust
Wind Advisory	8
Fire
Red Flag Warning	1
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	5
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2021 2023

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.