Alert archive / Oklahoma / Jefferson County

Weather alerts in Jefferson County, Oklahoma, 2019

208 weather alerts in 2019, 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 2019. Tap one for its archive.

Alerts: 208
Warnings: 56
Watches: 28
Advisories: 63
Busiest month: May56 alerts
Busiest day: May 1, 201919 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

1 of 6 tornado warnings covering Jefferson County in 2019 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 7 minutes after it went out.

Jefferson County, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	6	1	83%	1	100%	7 min
Severe thunderstorm warnings	33	12	64%	7	71%	25 min
Flash flood warnings	3	0	100%	0

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Norman, OK: tornado warnings	111	28	75%	47	60%	13 min
NWS Norman, OK: severe thunderstorm warnings	942	275	71%	670	84%	24 min
NWS Norman, OK: flash flood warnings	150	72	52%	158	87%	75 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 1, 3:17 AM CST	Winter Storm Watch	OUN	36 hr
Jan 1, 6:42 PM CST	Winter Weather Advisory	OUN	59 hr
Jan 2, 3:44 PM CST	Winter Storm Warning	OUN	33 hr
Jan 2, 5:39 PM CST	Mesoscale Discussion	SPC	5 hr
Jan 2, 11:19 PM CST	Mesoscale Discussion	SPC	6 hr
Jan 3, 5:06 AM CST	Mesoscale Discussion	SPC	5 hr
Jan 16, 4:32 AM CST	Dense Fog Advisory	OUN	7 hr
Jan 18, 3:08 AM CST	Wind Advisory	OUN	33 hr
Jan 21, 3:19 AM CST	Wind Advisory	OUN	16 hr
Feb 1, 6:36 AM CST	Dense Fog Advisory	OUN	5 hr
Feb 5, 7:32 PM CST	Mesoscale Discussion	SPC	2 hr
Feb 6, 12:48 PM CST	Special Weather Statement	OUN	27 min
Feb 6, 10:16 PM CST	Mesoscale Discussion	SPC	119 min
Feb 10, 10:50 PM CST	Dense Fog Advisory	OUN	13 hr
Feb 18, 3:14 PM CST	Winter Weather Advisory	OUN	33 hr
Feb 22, 4:17 PM CST	Wind Advisory	OUN	26 hr
Feb 26, 10:41 AM CST	Winter Weather Advisory	OUN	43 hr
Mar 8, 11:39 PM CST	Mesoscale Discussion	SPC	3 hr
Mar 9, 9:05 AM CST	Wind Advisory	OUN	5 hr
Mar 11, 11:59 PM CDT	Special Weather Statement	OUN	31 min
Mar 12, 1:10 PM CDT	Wind Advisory	OUN	31 hr
Mar 13, 12:31 AM CDT	Mesoscale Discussion	SPC	59 min
Mar 13, 12:47 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 13, 3:51 AM CDT	Special Weather Statement	OUN	24 min
Mar 13, 4:21 AM CDT	Special Weather Statement	OUN	24 min
Mar 23, 2:33 PM CDT	Mesoscale Discussion	SPC	117 min
Mar 23, 6:07 PM CDT	Mesoscale Discussion	SPC	113 min
Mar 23, 7:20 PM CDT	Severe Thunderstorm Warning	OUN	40 min
Mar 23, 7:32 PM CDT	Tornado Warning	OUN	26 min
Mar 23, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	49 min
Mar 23, 8:10 PM CDT	Areal Flood Advisory	OUN	3 hr
Mar 23, 8:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Mar 30, 3:02 PM CDT	Freeze Warning	OUN	19 hr
Apr 6, 7:58 AM CDT	Mesoscale Discussion	SPC	92 min
Apr 7, 5:35 AM CDT	Dense Fog Advisory	OUN	6 hr
Apr 9, 3:39 PM CDT	Wind Advisory	OUN	41 hr
Apr 13, 2:48 AM CDT	Special Weather Statement	OUN	27 min
Apr 13, 3:31 AM CDT	Wind Advisory	OUN	20 hr
Apr 13, 4:03 PM CDT	High Wind Warning	OUN	117 min
Apr 13, 4:03 PM CDT	Wind Advisory	OUN	7 hr
Apr 17, 3:30 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 17, 5:54 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 17, 7:22 PM CDT	Severe Thunderstorm Warning	OUN	53 min
Apr 17, 8:00 PM CDT	Severe Thunderstorm Warning	OUN	28 min
Apr 24, 2:12 PM CDT	River Flood Warning	OUN	65 hr
Apr 28, 4:10 AM CDT	Mesoscale Discussion	SPC	95 min
Apr 29, 10:38 AM CDT	Flood Watch	OUN	68 hr
Apr 30, 11:41 AM CDT	Mesoscale Discussion	SPC	2 hr
Apr 30, 12:02 PM CDT	Tornado Watch	SPC	13 hr
Apr 30, 4:56 PM CDT	Tornado Warning	OUN	24 min
Apr 30, 5:05 PM CDT	Areal Flood Advisory	OUN	115 min
Apr 30, 5:21 PM CDT	Mesoscale Discussion	SPC	84 min
Apr 30, 7:22 PM CDT	Flash Flood Warning	OUN	3 hr
Apr 30, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	39 min
Apr 30, 8:28 PM CDT	Special Weather Statement	OUN	32 min
Apr 30, 8:35 PM CDT	Areal Flood Advisory	OUN	3 hr
Apr 30, 8:59 PM CDT	Areal Flood Advisory	OUN	3 hr
May 1, 12:00 AM CDT	Mesoscale Discussion	SPC	2 hr
May 1, 12:21 PM CDT	Mesoscale Discussion	SPC	114 min
May 1, 12:52 PM CDT	Severe Thunderstorm Warning	OUN	38 min
May 1, 1:00 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
May 1, 1:29 PM CDT	Tornado Warning Tornado observed	OUN	31 min
May 1, 1:41 PM CDT	Areal Flood Advisory	OUN	3 hr
May 1, 1:41 PM CDT	Tornado Warning	OUN	19 min
May 1, 2:01 PM CDT	Tornado Warning	OUN	44 min
May 1, 2:10 PM CDT	Severe Thunderstorm Warning	OUN	50 min
May 1, 2:49 PM CDT	Severe Thunderstorm Warning	OUN	41 min
May 1, 3:25 PM CDT	Mesoscale Discussion	SPC	2 hr
May 1, 3:39 PM CDT	Severe Thunderstorm Warning	OUN	66 min
May 1, 4:30 PM CDT	Tornado Warning	OUN	35 min
May 1, 4:38 PM CDT	Areal Flood Advisory	OUN	3 hr
May 2, 1:07 AM CDT	Special Weather Statement	OUN	53 min
May 2, 5:41 AM CDT	Flood Watch	OUN	43 hr
May 2, 9:12 AM CDT	Special Weather Statement	OUN	63 min
May 7, 9:13 PM CDT	Tornado Watch	SPC	8 hr
May 8, 10:27 AM CDT	River Flood Warning	OUN	6 days
May 8, 10:31 AM CDT	River Flood Warning	OUN	4 days
May 18, 1:35 AM CDT	Mesoscale Discussion	SPC	2 hr
May 18, 2:20 AM CDT	Tornado Watch	SPC	8 hr
May 18, 5:11 AM CDT	Mesoscale Discussion	SPC	2 hr
May 18, 6:51 AM CDT	Mesoscale Discussion	SPC	114 min
May 18, 8:57 AM CDT	Special Weather Statement	OUN	33 min
May 18, 9:05 AM CDT	Severe Thunderstorm Warning	OUN	40 min
May 19, 11:36 AM CDT	Flood Watch	OUN	49 hr
May 20, 9:40 AM CDT	River Flood Warning	OUN	21 days
May 20, 11:17 AM CDT	Mesoscale Discussion	SPC	2 hr
May 20, 1:37 PM CDT	Tornado Watch PDS	SPC	8 hr
May 20, 8:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 20, 10:07 PM CDT	Tornado Watch	SPC	9 hr
May 21, 1:43 AM CDT	Severe Thunderstorm Warning	OUN	47 min
May 21, 2:24 AM CDT	Mesoscale Discussion	SPC	96 min
May 21, 2:27 AM CDT	Severe Thunderstorm Warning	OUN	48 min
May 22, 2:34 PM CDT	Tornado Watch PDS	SPC	7 hr
May 22, 5:38 PM CDT	Mesoscale Discussion	SPC	97 min
May 24, 4:50 PM CDT	Tornado Watch	SPC	5 hr
May 24, 8:16 PM CDT	River Flood Warning	OUN	7 days
May 25, 5:56 PM CDT	Mesoscale Discussion	SPC	2 hr
May 28, 3:23 PM CDT	Mesoscale Discussion	SPC	67 min
May 28, 3:26 PM CDT	Flood Watch	OUN	28 hr
May 28, 3:46 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 28, 8:16 PM CDT	Severe Thunderstorm Warning	OUN	29 min
May 28, 8:22 PM CDT	Areal Flood Advisory	OUN	3 hr
May 28, 8:30 PM CDT	Severe Thunderstorm Warning	OUN	45 min
May 28, 8:40 PM CDT	Severe Thunderstorm Warning	OUN	50 min
May 28, 9:28 PM CDT	Severe Thunderstorm Warning	OUN	47 min
May 29, 7:31 AM CDT	Mesoscale Discussion	SPC	119 min
May 29, 10:04 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 29, 10:15 AM CDT	Areal Flood Advisory	OUN	3 hr
Jun 1, 4:16 PM CDT	Areal Flood Advisory	OUN	3 hr
Jun 4, 7:40 AM CDT	Special Weather Statement	OUN	35 min
Jun 4, 9:42 AM CDT	Areal Flood Advisory	OUN	3 hr
Jun 5, 5:35 PM CDT	Areal Flood Advisory	OUN	115 min
Jun 9, 9:03 AM CDT	Mesoscale Discussion	SPC	117 min
Jun 9, 9:24 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jun 9, 10:34 AM CDT	Mesoscale Discussion	SPC	86 min
Jun 9, 10:52 AM CDT	Severe Thunderstorm Warning	OUN	68 min
Jun 15, 4:22 PM CDT	Flood Watch	OUN	11 hr
Jun 15, 9:02 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr
Jun 15, 9:11 PM CDT	Mesoscale Discussion	SPC	64 min
Jun 15, 10:10 PM CDT	Severe Thunderstorm Warning	OUN	50 min
Jun 15, 10:39 PM CDT	Severe Thunderstorm Warning	OUN	51 min
Jun 15, 11:16 PM CDT	Severe Thunderstorm Warning	OUN	44 min
Jun 15, 11:52 PM CDT	Areal Flood Advisory	OUN	3 hr
Jun 15, 11:55 PM CDT	Severe Thunderstorm Warning	OUN	50 min
Jun 15, 11:57 PM CDT	Severe Thunderstorm Warning	OUN	63 min
Jun 16, 12:53 AM CDT	Severe Thunderstorm Warning	OUN	67 min
Jun 18, 9:29 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 19, 12:45 AM CDT	Mesoscale Discussion	SPC	60 min
Jun 19, 1:11 AM CDT	Severe Thunderstorm Warning	OUN	49 min
Jun 20, 11:31 AM CDT	Heat Advisory	OUN	9 hr
Jun 21, 3:24 AM CDT	Heat Advisory	OUN	16 hr
Jun 21, 3:53 PM CDT	Flood Watch	OUN	57 hr
Jun 23, 1:37 PM CDT	Mesoscale Discussion	SPC	83 min
Jun 23, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 23, 3:16 PM CDT	Special Weather Statement	OUN	29 min
Jun 23, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	39 min
Jun 23, 4:17 PM CDT	Special Weather Statement	OUN	28 min
Jun 23, 4:58 PM CDT	Severe Thunderstorm Warning	OUN	47 min
Jun 23, 5:45 PM CDT	Severe Thunderstorm Warning	OUN	15 min
Jul 6, 1:43 PM CDT	Special Weather Statement	OUN	32 min
Jul 6, 2:38 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 7, 2:26 AM CDT	Dense Fog Advisory	OUN	6 hr
Jul 7, 9:03 PM CDT	Special Weather Statement	OUN	57 min
Jul 9, 2:58 AM CDT	Heat Advisory	OUN	41 hr
Jul 10, 3:42 AM CDT	Excessive Heat Warning	OUN	16 hr
Jul 15, 2:52 PM CDT	Heat Advisory	OUN	29 hr
Jul 16, 3:04 PM CDT	Heat Advisory	OUN	29 hr
Jul 17, 2:26 PM CDT	Heat Advisory	OUN	30 hr
Aug 1, 3:13 AM CDT	Heat Advisory	OUN	17 hr
Aug 6, 12:49 PM CDT	Heat Advisory	OUN	7 hr
Aug 6, 3:28 PM CDT	Heat Advisory	OUN	29 hr
Aug 8, 3:20 AM CDT	Heat Advisory	OUN	17 hr
Aug 9, 3:40 AM CDT	Heat Advisory	OUN	16 hr
Aug 9, 3:14 PM CDT	Heat Advisory	OUN	3 days
Aug 12, 1:49 PM CDT	Excessive Heat Warning	OUN	6 hr
Aug 13, 7:24 PM CDT	Special Weather Statement	OUN	21 min
Aug 13, 7:52 PM CDT	Severe Thunderstorm Warning	OUN	23 min
Aug 16, 1:57 PM CDT	Heat Advisory	OUN	6 hr
Aug 17, 3:13 AM CDT	Heat Advisory	OUN	49 hr
Aug 18, 12:29 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 19, 3:53 AM CDT	Heat Advisory	OUN	17 hr
Aug 19, 3:53 AM CDT	Heat Advisory	OUN	40 hr
Aug 22, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	37 min
Aug 22, 5:09 PM CDT	Special Weather Statement	OUN	36 min
Aug 25, 2:51 PM CDT	Heat Advisory	OUN	28 hr
Aug 26, 1:14 PM CDT	Excessive Heat Warning	OUN	6 hr
Aug 26, 10:21 PM CDT	Mesoscale Discussion	SPC	114 min
Aug 26, 10:49 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Aug 27, 2:15 AM CDT	Mesoscale Discussion	SPC	60 min
Aug 27, 2:40 AM CDT	Severe Thunderstorm Warning	OUN	65 min
Aug 27, 3:46 AM CDT	Severe Thunderstorm Warning	OUN	44 min
Aug 27, 4:01 AM CDT	Severe Thunderstorm Warning	OUN	44 min
Aug 27, 4:54 AM CDT	Special Weather Statement	OUN	51 min
Aug 27, 6:07 AM CDT	Areal Flood Advisory	OUN	3 hr
Aug 29, 5:49 PM CDT	Mesoscale Discussion	SPC	116 min
Aug 30, 8:00 AM CDT	Areal Flood Advisory	OUN	3 hr
Aug 30, 11:25 AM CDT	Areal Flood Advisory	OUN	3 hr
Aug 30, 11:40 AM CDT	Special Weather Statement	OUN	50 min
Aug 30, 11:48 AM CDT	Flash Flood Warning	OUN	3 hr
Sep 13, 7:41 AM CDT	Areal Flood Advisory	OUN	3 hr
Sep 20, 2:44 PM CDT	Areal Flood Advisory	OUN	3 hr
Sep 20, 5:54 PM CDT	Areal Flood Advisory	OUN	3 hr
Sep 20, 6:23 PM CDT	Flash Flood Warning	OUN	3 hr
Sep 20, 9:19 PM CDT	Areal Flood Warning	OUN	6 hr
Sep 20, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	61 min
Oct 10, 12:14 PM CDT	Mesoscale Discussion	SPC	2 hr
Oct 10, 12:51 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Oct 10, 3:19 PM CDT	Freeze Watch	OUN	23 hr
Oct 11, 2:27 PM CDT	Freeze Warning	OUN	19 hr
Oct 20, 6:27 PM CDT	Mesoscale Discussion	SPC	93 min
Oct 20, 7:13 PM CDT	Special Weather Statement	OUN	32 min
Oct 20, 8:27 PM CDT	Tornado Watch	SPC	5 hr
Oct 24, 11:19 AM CDT	Wind Advisory	OUN	8 hr
Oct 24, 3:07 PM CDT	Special Weather Statement	OUN	23 min
Oct 29, 4:06 PM CDT	Freeze Watch	OUN	11 hr
Oct 30, 3:23 AM CDT	Freeze Warning	OUN	32 hr
Nov 6, 4:20 AM CST	Flood Watch	OUN	24 hr
Nov 6, 6:25 AM CST	Dense Fog Advisory	OUN	4 hr
Nov 10, 6:01 AM CST	Dense Fog Advisory	OUN	4 hr
Nov 10, 2:13 PM CST	Wind Advisory	OUN	28 hr
Nov 25, 12:30 PM CST	Wind Advisory	OUN	35 hr
Nov 29, 1:43 PM CST	Wind Advisory	OUN	31 hr
Nov 29, 11:25 PM CST	Dense Fog Advisory	OUN	2 hr
Dec 13, 6:22 AM CST	Dense Fog Advisory	OUN	4 hr
Dec 21, 2:26 PM CST	Dense Fog Advisory	OUN	22 hr
Dec 22, 3:15 PM CST	Dense Fog Advisory	OUN	20 hr
Dec 26, 4:47 AM CST	Dense Fog Advisory	OUN	5 hr
Dec 26, 10:02 AM CST	Dense Fog Advisory	OUN	58 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	33
Tornado Warning	6
Severe Thunderstorm Watch	10
Tornado Watch	8
Mesoscale Discussion	41
Special Weather Statement	20
Flooding
Areal Flood Warning	1
Flash Flood Warning	3
River Flood Warning	5
Flood Watch	7
Areal Flood Advisory	18
Winter
Winter Storm Warning	1
Winter Storm Watch	1
Winter Weather Advisory	3
Heat
Excessive Heat Warning	3
Heat Advisory	17
Cold
Freeze Warning	3
Freeze Watch	2
Wind and dust
High Wind Warning	1
Wind Advisory	12
Fog and smoke
Dense Fog Advisory	13

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2018 2020

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.