Alert archive / Oklahoma / Harper County

Weather alerts in Harper County, Oklahoma, 2024

211 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Harper County and its neighbors

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 211
Warnings: 48
Watches: 29
Advisories: 49
Busiest month: May47 alerts
Busiest day: June 2, 202413 alerts

Over time

By month

Warning verification

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

Harper County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	30	3	90%	6	17%	24 min
Flash flood warnings	0			0

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Norman, OK: tornado warnings	196	35	82%	55	75%	16 min
NWS Norman, OK: severe thunderstorm warnings	988	329	67%	772	81%	23 min
NWS Norman, OK: flash flood warnings	101	21	79%	56	82%	82 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, 7:58 PM CST	Winter Weather Advisory	OUN	40 hr
Jan 7, 3:36 PM CST	Wind Advisory	OUN	45 hr
Jan 8, 4:12 AM CST	High Wind Warning	OUN	22 hr
Jan 8, 4:12 AM CST	Wind Advisory	OUN	32 hr
Jan 8, 4:19 AM CST	Winter Weather Advisory	OUN	10 hr
Jan 8, 2:02 PM CST	Winter Storm Warning	OUN	4 hr
Jan 8, 5:50 PM CST	Blizzard Warning	OUN	6 hr
Jan 8, 5:50 PM CST	Winter Weather Advisory	OUN	12 hr
Jan 11, 2:46 AM CST	Wind Advisory	OUN	30 hr
Jan 11, 3:34 PM CST	Wind Chill Advisory	OUN	17 hr
Jan 11, 4:15 PM CST	Wind Chill Watch	OUN	22 hr
Jan 12, 1:53 PM CST	Wind Chill Warning	OUN	70 hr
Jan 12, 1:53 PM CST	Wind Chill Advisory	OUN	4 days
Jan 18, 5:12 PM CST	Wind Advisory	OUN	13 hr
Jan 22, 4:19 PM CST	Dense Fog Advisory	OUN	20 hr
Jan 23, 2:01 PM CST	Dense Fog Advisory	OUN	22 hr
Jan 24, 3:19 PM CST	Dense Fog Advisory	OUN	20 hr
Jan 25, 3:12 PM CST	Dense Fog Advisory	OUN	21 hr
Feb 2, 4:29 PM CST	Special Weather Statement	OUN	31 min
Feb 17, 10:07 AM CST	Winter Weather Advisory	OUN	3 hr
Feb 25, 2:14 PM CST	Fire Weather Watch	OUN	24 hr
Feb 25, 4:54 PM CST	Fire Weather Watch	OUN	10 hr
Feb 26, 2:34 AM CST	Red Flag Warning	OUN	16 hr
Feb 26, 12:36 PM CST	Wind Advisory	OUN	5 hr
Feb 26, 2:26 PM CST	Wind Advisory	OUN	34 hr
Feb 26, 2:43 PM CST	Red Flag Warning	OUN	29 hr
Mar 1, 3:17 AM CST	Fire Weather Watch	OUN	48 hr
Mar 1, 2:41 PM CST	Red Flag Warning	OUN	53 hr
Mar 2, 12:01 AM CST	Dense Fog Advisory	OUN	10 hr
Mar 11, 2:47 AM CDT	Red Flag Warning	OUN	16 hr
Mar 12, 2:22 AM CDT	Fire Weather Watch	OUN	25 hr
Mar 12, 1:35 PM CDT	Red Flag Warning	OUN	29 hr
Mar 22, 3:20 AM CDT	High Wind Watch	OUN	48 hr
Mar 22, 4:32 AM CDT	Dense Fog Advisory	OUN	4 hr
Mar 22, 2:42 PM CDT	Fire Weather Watch	OUN	24 hr
Mar 23, 3:01 PM CDT	Red Flag Warning	OUN	29 hr
Mar 23, 3:04 PM CDT	Wind Advisory	OUN	34 hr
Mar 24, 3:02 AM CDT	High Wind Warning	OUN	13 hr
Mar 24, 2:03 PM CDT	Mesoscale Discussion	SPC	117 min
Mar 24, 2:49 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 24, 4:37 PM CDT	Mesoscale Discussion	SPC	113 min
Mar 30, 2:39 PM CDT	Fire Weather Watch	OUN	12 hr
Mar 31, 2:51 AM CDT	Red Flag Warning	OUN	16 hr
Apr 4, 3:13 AM CDT	Fire Weather Watch	OUN	36 hr
Apr 5, 2:32 PM CDT	Wind Advisory	OUN	31 hr
Apr 5, 2:49 PM CDT	Red Flag Warning	OUN	33 hr
Apr 5, 3:51 PM CDT	Red Flag Warning	OUN	6 hr
Apr 15, 2:34 PM CDT	Red Flag Warning	OUN	29 hr
Apr 15, 5:28 PM CDT	Wind Advisory	OUN	9 hr
Apr 15, 8:07 PM CDT	Tornado Watch	SPC	8 hr
Apr 18, 8:17 AM CDT	Wind Advisory	OUN	4 hr
Apr 26, 10:55 AM CDT	Flood Watch	OUN	50 hr
Apr 27, 6:27 AM CDT	Tornado Watch	SPC	7 hr
May 1, 2:57 PM CDT	Mesoscale Discussion	SPC	2 hr
May 3, 8:28 PM CDT	Mesoscale Discussion	SPC	2 hr
May 3, 9:21 PM CDT	Severe Thunderstorm Warning	OUN	54 min
May 3, 9:47 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
May 3, 10:10 PM CDT	Special Weather Statement	OUN	35 min
May 3, 10:13 PM CDT	Special Weather Statement	OUN	32 min
May 3, 10:36 PM CDT	Severe Thunderstorm Warning	OUN	39 min
May 4, 2:09 AM CDT	Special Weather Statement	OUN	51 min
May 4, 2:50 AM CDT	Special Weather Statement	OUN	40 min
May 6, 11:47 AM CDT	Mesoscale Discussion	SPC	118 min
May 6, 2:05 PM CDT	Tornado Watch PDS	SPC	12 hr
May 15, 3:50 PM CDT	Mesoscale Discussion	SPC	55 min
May 15, 5:57 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
May 15, 6:45 PM CDT	Special Weather Statement	OUN	30 min
May 15, 6:49 PM CDT	Severe Thunderstorm Warning	OUN	41 min
May 15, 7:27 PM CDT	Severe Thunderstorm Warning	OUN	48 min
May 15, 7:42 PM CDT	Severe Thunderstorm Warning	OUN	48 min
May 15, 7:57 PM CDT	Areal Flood Advisory	OUN	3 hr
May 15, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	39 min
May 15, 8:09 PM CDT	Mesoscale Discussion	SPC	96 min
May 19, 1:29 PM CDT	Mesoscale Discussion	SPC	2 hr
May 19, 2:32 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr
May 19, 3:51 PM CDT	Mesoscale Discussion	SPC	114 min
May 19, 5:17 PM CDT	Mesoscale Discussion	SPC	118 min
May 19, 9:09 PM CDT	Severe Thunderstorm Warning	OUN	51 min
May 19, 9:36 PM CDT	Severe Thunderstorm Warning	OUN	39 min
May 19, 9:48 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
May 19, 10:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	45 min
May 19, 10:34 PM CDT	Areal Flood Advisory	OUN	3 hr
May 23, 2:22 PM CDT	Mesoscale Discussion	SPC	53 min
May 25, 2:56 PM CDT	Mesoscale Discussion	SPC	4 hr
May 25, 4:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	46 min
May 25, 5:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	52 min
May 25, 5:34 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	41 min
May 25, 5:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	20 min
May 25, 5:49 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	41 min
May 25, 6:07 PM CDT	Mesoscale Discussion	SPC	83 min
May 28, 9:24 AM CDT	Severe Thunderstorm Warning	OUN	51 min
May 28, 9:40 AM CDT	Special Weather Statement	OUN	35 min
May 28, 10:01 AM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	44 min
May 28, 10:13 AM CDT	Mesoscale Discussion	SPC	92 min
May 28, 10:18 AM CDT	Special Weather Statement	OUN	27 min
May 28, 10:35 AM CDT	Severe Thunderstorm Warning	OUN	19 min
May 28, 10:51 AM CDT	Special Weather Statement	OUN	24 min
May 28, 10:55 AM CDT	Severe Thunderstorm Warning	OUN	50 min
May 30, 8:24 PM CDT	Special Weather Statement	OUN	66 min
May 30, 9:29 PM CDT	Special Weather Statement	OUN	61 min
Jun 1, 7:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 1, 7:41 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 1, 9:42 PM CDT	Special Weather Statement	OUN	48 min
Jun 1, 10:05 PM CDT	Special Weather Statement	OUN	25 min
Jun 1, 10:31 PM CDT	Special Weather Statement	OUN	29 min
Jun 1, 10:41 PM CDT	Special Weather Statement	OUN	19 min
Jun 1, 10:54 PM CDT	Special Weather Statement	OUN	36 min
Jun 1, 11:08 PM CDT	Special Weather Statement	DDC	37 min
Jun 1, 11:11 PM CDT	Severe Thunderstorm Warning	OUN	34 min
Jun 1, 11:25 PM CDT	Special Weather Statement	OUN	20 min
Jun 1, 11:57 PM CDT	Severe Thunderstorm Warning	OUN	21 min
Jun 2, 6:00 AM CDT	Special Weather Statement	OUN	30 min
Jun 2, 6:26 AM CDT	Special Weather Statement	OUN	34 min
Jun 3, 3:00 AM CDT	Mesoscale Discussion	SPC	90 min
Jun 3, 4:47 AM CDT	Severe Thunderstorm Warning	OUN	58 min
Jun 3, 5:00 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 3, 5:14 AM CDT	Mesoscale Discussion	SPC	61 min
Jun 3, 5:39 AM CDT	Severe Thunderstorm Warning	OUN	51 min
Jun 3, 6:26 AM CDT	Special Weather Statement	OUN	34 min
Jun 3, 6:28 AM CDT	Severe Thunderstorm Warning	OUN	47 min
Jun 6, 1:53 PM CDT	Mesoscale Discussion	SPC	67 min
Jun 7, 4:03 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 7, 7:35 PM CDT	Special Weather Statement	OUN	25 min
Jun 7, 8:31 PM CDT	Special Weather Statement	OUN	29 min
Jun 8, 11:58 PM CDT	Special Weather Statement	OUN	47 min
Jun 9, 12:02 AM CDT	Special Weather Statement	OUN	43 min
Jun 13, 5:24 PM CDT	Mesoscale Discussion	SPC	66 min
Jun 13, 5:47 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 13, 7:48 PM CDT	Special Weather Statement	OUN	27 min
Jun 13, 8:11 PM CDT	Severe Thunderstorm Warning	OUN	49 min
Jun 15, 5:01 PM CDT	Mesoscale Discussion	SPC	119 min
Jun 18, 9:16 AM CDT	Wind Advisory	OUN	9 hr
Jun 18, 9:24 PM CDT	Mesoscale Discussion	SPC	96 min
Jun 18, 10:44 PM CDT	Special Weather Statement	OUN	31 min
Jun 19, 1:06 AM CDT	Areal Flood Advisory	OUN	6 hr
Jun 24, 2:14 AM CDT	Heat Advisory	OUN	43 hr
Jun 25, 1:59 AM CDT	Heat Advisory	OUN	43 hr
Jun 27, 12:43 PM CDT	Heat Advisory	OUN	32 hr
Jun 27, 5:19 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 27, 9:04 PM CDT	Mesoscale Discussion	SPC	56 min
Jun 27, 9:23 PM CDT	Special Weather Statement	OUN	37 min
Jun 27, 11:52 PM CDT	Special Weather Statement	OUN	23 min
Jun 28, 1:50 PM CDT	Heat Advisory	OUN	31 hr
Jul 1, 2:22 PM CDT	Heat Advisory	OUN	31 hr
Jul 3, 10:58 PM CDT	Special Weather Statement	OUN	32 min
Jul 3, 11:30 PM CDT	Special Weather Statement	OUN	30 min
Jul 4, 12:41 AM CDT	Special Weather Statement	OUN	34 min
Jul 4, 1:15 AM CDT	Special Weather Statement	OUN	30 min
Jul 6, 2:31 AM CDT	Flood Watch	OUN	49 hr
Jul 6, 11:25 PM CDT	Special Weather Statement	OUN	35 min
Jul 6, 11:52 PM CDT	Special Weather Statement	OUN	38 min
Jul 7, 12:31 AM CDT	Special Weather Statement	OUN	44 min
Jul 13, 1:22 PM CDT	Heat Advisory	OUN	31 hr
Jul 14, 1:02 PM CDT	Heat Advisory	OUN	31 hr
Jul 16, 6:11 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 16, 10:20 PM CDT	Special Weather Statement	OUN	40 min
Jul 16, 10:57 PM CDT	Special Weather Statement	OUN	48 min
Jul 16, 11:07 PM CDT	Severe Thunderstorm Warning	OUN	38 min
Jul 16, 11:39 PM CDT	Severe Thunderstorm Warning	OUN	51 min
Jul 16, 11:54 PM CDT	Areal Flood Advisory	OUN	4 hr
Jul 19, 4:41 PM CDT	Mesoscale Discussion	SPC	64 min
Jul 19, 5:37 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 28, 2:37 PM CDT	Heat Advisory	OUN	30 hr
Jul 29, 2:40 PM CDT	Heat Advisory	OUN	30 hr
Jul 30, 1:52 PM CDT	Heat Advisory	OUN	31 hr
Jul 31, 1:53 PM CDT	Heat Advisory	OUN	31 hr
Aug 1, 11:53 PM CDT	Special Weather Statement	OUN	37 min
Aug 2, 12:12 AM CDT	Special Weather Statement	OUN	33 min
Aug 2, 12:32 AM CDT	Severe Thunderstorm Warning	OUN	43 min
Aug 6, 2:25 PM CDT	Heat Advisory	OUN	31 hr
Aug 14, 3:00 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 7:45 PM CDT	Special Weather Statement	OUN	30 min
Aug 15, 1:53 PM CDT	Heat Advisory	OUN	30 hr
Aug 17, 3:11 PM CDT	Heat Advisory	OUN	30 hr
Aug 23, 3:11 PM CDT	Heat Advisory	OUN	30 hr
Aug 23, 5:15 PM CDT	Mesoscale Discussion	SPC	90 min
Aug 25, 2:11 PM CDT	Special Weather Statement	OUN	34 min
Aug 25, 2:43 PM CDT	Special Weather Statement	OUN	32 min
Aug 25, 2:48 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	57 min
Aug 25, 3:36 PM CDT	Special Weather Statement	OUN	39 min
Aug 25, 4:15 PM CDT	Severe Thunderstorm Warning	OUN	45 min
Aug 25, 5:04 PM CDT	Special Weather Statement	OUN	26 min
Aug 25, 5:30 PM CDT	Special Weather Statement	OUN	30 min
Aug 25, 6:01 PM CDT	Special Weather Statement	OUN	29 min
Sep 5, 7:24 PM CDT	Special Weather Statement	OUN	36 min
Sep 5, 7:30 PM CDT	Special Weather Statement	OUN	30 min
Sep 16, 7:00 PM CDT	Special Weather Statement	OUN	30 min
Sep 16, 7:25 PM CDT	Severe Thunderstorm Warning	OUN	50 min
Sep 18, 3:42 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 18, 4:22 PM CDT	Special Weather Statement	OUN	23 min
Sep 20, 3:25 PM CDT	Mesoscale Discussion	SPC	2 hr
Sep 21, 2:08 PM CDT	Special Weather Statement	OUN	37 min
Oct 14, 1:43 PM CDT	Freeze Warning	OUN	43 hr
Oct 21, 7:23 AM CDT	Special Weather Statement	OUN	37 min
Oct 21, 7:58 AM CDT	Special Weather Statement	OUN	32 min
Oct 21, 8:05 AM CDT	Special Weather Statement	OUN	25 min
Oct 21, 12:57 PM CDT	Special Weather Statement	OUN	33 min
Oct 27, 3:02 AM CDT	Fire Weather Watch	OUN	24 hr
Oct 27, 1:35 PM CDT	Wind Advisory	OUN	54 hr
Oct 27, 2:08 PM CDT	Red Flag Warning	OUN	30 hr
Oct 30, 2:15 AM CDT	Red Flag Warning	OUN	18 hr
Oct 30, 1:05 PM CDT	Special Weather Statement	OUN	25 min
Oct 30, 1:15 PM CDT	Mesoscale Discussion	SPC	90 min
Nov 13, 1:05 PM CST	Frost Advisory	OUN	19 hr
Nov 16, 1:24 PM CST	Flood Watch	OUN	46 hr
Dec 23, 2:00 AM CST	Dense Fog Advisory	OUN	7 hr
Dec 25, 12:58 AM CST	Dense Fog Advisory	OUN	10 hr
Dec 25, 7:07 PM CST	Dense Fog Advisory	OUN	15 hr
Dec 26, 1:26 PM CST	Dense Fog Advisory	OUN	22 hr
Dec 29, 2:17 AM CST	Fire Weather Watch	OUN	24 hr
Dec 30, 1:55 AM CST	Wind Advisory	OUN	14 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	30
Severe Thunderstorm Watch	12
Tornado Watch	3
Mesoscale Discussion	28
Special Weather Statement	57
Flooding
Flood Watch	3
Areal Flood Advisory	4
Winter
Blizzard Warning	1
Winter Storm Warning	1
Winter Weather Advisory	4
Heat
Heat Advisory	15
Cold
Freeze Warning	1
Wind Chill Warning	1
Wind Chill Watch	1
Frost Advisory	1
Wind Chill Advisory	2
Wind and dust
High Wind Warning	2
High Wind Watch	1
Wind Advisory	13
Fire
Red Flag Warning	12
Fire Weather Watch	9
Fog and smoke
Dense Fog Advisory	10

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2023 2025

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.