Weather alerts in Grant County, Oklahoma, 2023

188 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Grant County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts: 188
Warnings: 48
Watches: 16
Advisories: 57
Busiest month: July47 alerts
Busiest day: February 27, 202313 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 8 tornado warnings covering Grant County in 2023 had a tornado report inside them.

Grant County, 2023

	Warnings	With a report	False alarm ratio
Tornado warnings	8	1	88%
Severe thunderstorm warnings	30	9	70%
Flash flood warnings	0

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Norman, OK: tornado warnings	102	31	70%	37	86%	14 min
NWS Norman, OK: severe thunderstorm warnings	894	318	64%	884	84%	24 min
NWS Norman, OK: flash flood warnings	57	17	70%	38	74%	76 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 2, 6:08 AM CST	Dense Fog Advisory	OUN	6 hr
Jan 11, 2:13 PM CST	Wind Advisory	OUN	16 hr
Jan 23, 3:36 AM CST	Winter Weather Advisory	OUN	50 hr
Feb 8, 6:58 PM CST	Winter Weather Advisory	OUN	3 hr
Feb 25, 4:22 PM CST	Wind Advisory	OUN	38 hr
Feb 26, 7:02 PM CST	Mesoscale Discussion	SPC	118 min
Feb 26, 7:32 PM CST	Tornado Watch	SPC	5 hr
Feb 26, 8:12 PM CST	Severe Thunderstorm Warning	OUN	48 min
Feb 26, 8:29 PM CST	Tornado Warning	OUN	19 min
Feb 26, 8:46 PM CST	Tornado Warning	OUN	14 min
Feb 26, 8:52 PM CST	Tornado Warning	OUN	23 min
Feb 26, 9:03 PM CST	Tornado Warning	OUN	31 min
Feb 26, 9:06 PM CST	Severe Thunderstorm Warning	OUN	39 min
Feb 26, 9:15 PM CST	Tornado Warning	OUN	30 min
Feb 26, 9:22 PM CST	Tornado Warning	OUN	38 min
Feb 26, 9:27 PM CST	Tornado Warning	OUN	33 min
Feb 26, 9:33 PM CST	Severe Thunderstorm Warning Destructive damage threat	OUN	42 min
Feb 26, 9:57 PM CST	Tornado Warning	OUN	48 min
Mar 15, 3:40 AM CDT	Wind Advisory	OUN	18 hr
Mar 16, 2:48 AM CDT	Wind Advisory	OUN	22 hr
Mar 20, 11:37 AM CDT	Wind Advisory	OUN	8 hr
Mar 29, 3:26 AM CDT	Fire Weather Watch	OUN	35 hr
Mar 30, 2:46 AM CDT	Wind Advisory	OUN	40 hr
Mar 30, 2:47 AM CDT	Red Flag Warning	OUN	43 hr
Mar 31, 5:55 AM CDT	Special Weather Statement	OUN	35 min
Mar 31, 1:02 PM CDT	High Wind Warning	OUN	6 hr
Apr 1, 2:58 PM CDT	Fire Weather Watch	OUN	48 hr
Apr 2, 2:40 PM CDT	Wind Advisory	OUN	55 hr
Apr 3, 2:58 PM CDT	Red Flag Warning	OUN	32 hr
Apr 4, 8:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 10, 2:40 PM CDT	Mesoscale Discussion	SPC	3 hr
Apr 10, 8:09 PM CDT	Severe Thunderstorm Warning	OUN	51 min
Apr 10, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	35 min
Apr 14, 3:47 PM CDT	Mesoscale Discussion	SPC	58 min
Apr 14, 4:39 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Apr 19, 8:46 PM CDT	Wind Advisory	OUN	10 hr
Apr 22, 2:22 PM CDT	Frost Advisory	OUN	18 hr
May 5, 3:48 AM CDT	Dense Fog Advisory	OUN	5 hr
May 9, 5:11 PM CDT	Special Weather Statement	OUN	64 min
May 14, 7:05 AM CDT	Areal Flood Advisory	OUN	3 hr
May 19, 2:54 AM CDT	Special Weather Statement	OUN	51 min
Jun 1, 2:51 PM CDT	Special Weather Statement	OUN	24 min
Jun 1, 3:26 PM CDT	Special Weather Statement	OUN	34 min
Jun 1, 3:53 PM CDT	Special Weather Statement	OUN	22 min
Jun 1, 3:56 PM CDT	Severe Thunderstorm Warning	OUN	19 min
Jun 2, 3:12 AM CDT	Flood Watch	OUN	24 hr
Jun 6, 4:44 PM CDT	Special Weather Statement	OUN	31 min
Jun 6, 5:19 PM CDT	Special Weather Statement	OUN	26 min
Jun 10, 1:31 AM CDT	Special Weather Statement	OUN	29 min
Jun 10, 2:02 AM CDT	Special Weather Statement	OUN	43 min
Jun 10, 2:42 AM CDT	Special Weather Statement	OUN	33 min
Jun 15, 6:58 PM CDT	Severe Thunderstorm Warning	OUN	47 min
Jun 15, 7:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 15, 7:43 PM CDT	Severe Thunderstorm Warning	OUN	47 min
Jun 15, 8:24 PM CDT	Severe Thunderstorm Warning	OUN	51 min
Jun 15, 8:50 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	40 min
Jun 15, 9:26 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	49 min
Jun 17, 7:32 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 17, 8:21 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jun 17, 9:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	45 min
Jun 17, 10:09 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	51 min
Jun 17, 10:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 21, 7:55 AM CDT	Special Weather Statement	OUN	50 min
Jun 21, 8:20 AM CDT	Severe Thunderstorm Warning	OUN	25 min
Jun 21, 8:48 AM CDT	Special Weather Statement	OUN	27 min
Jun 21, 9:18 AM CDT	Special Weather Statement	OUN	27 min
Jun 27, 3:27 PM CDT	Heat Advisory	OUN	30 hr
Jun 27, 7:00 PM CDT	Mesoscale Discussion	SPC	90 min
Jun 27, 7:47 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jun 27, 9:58 PM CDT	Severe Thunderstorm Warning	OUN	32 min
Jun 27, 10:25 PM CDT	Severe Thunderstorm Warning	OUN	50 min
Jun 27, 10:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jun 27, 11:10 PM CDT	Special Weather Statement	OUN	35 min
Jun 28, 3:32 PM CDT	Heat Advisory	OUN	29 hr
Jul 3, 8:09 AM CDT	Special Weather Statement	OUN	36 min
Jul 3, 8:38 AM CDT	Special Weather Statement	OUN	37 min
Jul 3, 2:07 PM CDT	Special Weather Statement	OUN	38 min
Jul 4, 5:35 PM CDT	Special Weather Statement	OUN	25 min
Jul 4, 6:06 PM CDT	Special Weather Statement	OUN	24 min
Jul 5, 11:56 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 7, 1:12 PM CDT	Special Weather Statement	OUN	33 min
Jul 7, 1:57 PM CDT	Special Weather Statement	OUN	33 min
Jul 7, 2:29 PM CDT	Special Weather Statement	OUN	31 min
Jul 7, 6:54 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 10:31 PM CDT	Special Weather Statement	OUN	59 min
Jul 11, 12:40 AM CDT	Mesoscale Discussion	SPC	95 min
Jul 11, 2:10 PM CDT	Heat Advisory	OUN	13 hr
Jul 12, 3:07 AM CDT	Excessive Heat Warning	OUN	18 hr
Jul 12, 2:37 PM CDT	Heat Advisory	OUN	30 hr
Jul 12, 10:19 PM CDT	Special Weather Statement	OUN	26 min
Jul 12, 10:29 PM CDT	Special Weather Statement	OUN	31 min
Jul 12, 11:00 PM CDT	Special Weather Statement	OUN	30 min
Jul 12, 11:02 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 13, 2:37 PM CDT	Heat Advisory	OUN	30 hr
Jul 14, 3:52 PM CDT	Mesoscale Discussion	SPC	83 min
Jul 14, 4:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 14, 5:16 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	59 min
Jul 14, 6:11 PM CDT	Severe Thunderstorm Warning	OUN	49 min
Jul 16, 1:56 PM CDT	Heat Advisory	OUN	3 days
Jul 16, 6:29 PM CDT	Mesoscale Discussion	SPC	91 min
Jul 17, 9:42 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 17, 10:33 AM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 17, 2:35 PM CDT	Mesoscale Discussion	SPC	85 min
Jul 17, 3:43 PM CDT	Mesoscale Discussion	SPC	62 min
Jul 17, 3:58 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Jul 17, 6:19 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 17, 7:23 PM CDT	Special Weather Statement	OUN	52 min
Jul 20, 3:27 PM CDT	Flood Watch	OUN	16 hr
Jul 20, 11:10 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 20, 11:53 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 21, 3:18 AM CDT	Severe Thunderstorm Warning	OUN	42 min
Jul 21, 4:19 AM CDT	Mesoscale Discussion	SPC	86 min
Jul 21, 5:29 AM CDT	Areal Flood Advisory	OUN	4 hr
Jul 24, 2:15 AM CDT	Heat Advisory	OUN	42 hr
Jul 25, 1:32 PM CDT	Heat Advisory	OUN	30 hr
Jul 26, 1:13 PM CDT	Heat Advisory	OUN	31 hr
Jul 27, 2:17 PM CDT	Heat Advisory	OUN	30 hr
Jul 28, 3:11 AM CDT	Heat Advisory	OUN	41 hr
Jul 29, 2:56 AM CDT	Heat Advisory	OUN	41 hr
Jul 30, 3:05 AM CDT	Heat Advisory	OUN	41 hr
Jul 31, 3:50 AM CDT	Heat Advisory	OUN	40 hr
Aug 1, 4:19 AM CDT	Heat Advisory	OUN	41 hr
Aug 1, 3:08 PM CDT	Excessive Heat Warning	OUN	30 hr
Aug 1, 3:08 PM CDT	Heat Advisory	OUN	54 hr
Aug 2, 2:59 PM CDT	Heat Advisory	OUN	54 hr
Aug 3, 2:53 PM CDT	Heat Advisory	OUN	44 hr
Aug 5, 4:11 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 5, 4:25 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 5, 4:38 AM CDT	Severe Thunderstorm Warning	OUN	52 min
Aug 5, 5:25 AM CDT	Special Weather Statement	OUN	35 min
Aug 5, 11:31 PM CDT	Special Weather Statement	OUN	29 min
Aug 6, 12:41 AM CDT	Special Weather Statement	OUN	34 min
Aug 6, 2:27 AM CDT	Severe Thunderstorm Warning	OUN	48 min
Aug 6, 2:42 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 6, 3:12 AM CDT	Severe Thunderstorm Warning	OUN	33 min
Aug 6, 3:24 AM CDT	Areal Flood Advisory	OUN	3 hr
Aug 7, 2:23 AM CDT	Severe Thunderstorm Warning	OUN	52 min
Aug 7, 3:09 AM CDT	Severe Thunderstorm Warning	OUN	51 min
Aug 7, 3:09 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 7, 11:33 PM CDT	Mesoscale Discussion	SPC	57 min
Aug 8, 12:26 AM CDT	Special Weather Statement	OUN	34 min
Aug 8, 12:58 AM CDT	Special Weather Statement	OUN	32 min
Aug 8, 1:12 AM CDT	Severe Thunderstorm Warning	OUN	33 min
Aug 10, 1:46 PM CDT	Heat Advisory	OUN	31 hr
Aug 11, 2:04 PM CDT	Heat Advisory	OUN	29 hr
Aug 12, 2:29 PM CDT	Heat Advisory	OUN	31 hr
Aug 13, 4:46 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 13, 7:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 13, 11:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OUN	47 min
Aug 18, 3:08 AM CDT	Heat Advisory	OUN	42 hr
Aug 18, 3:04 PM CDT	Excessive Heat Warning	OUN	30 hr
Aug 19, 2:41 AM CDT	Excessive Heat Warning	OUN	42 hr
Aug 19, 2:41 AM CDT	Heat Advisory	OUN	42 hr
Aug 20, 2:08 AM CDT	Excessive Heat Warning	OUN	43 hr
Aug 21, 3:02 AM CDT	Excessive Heat Warning	OUN	42 hr
Aug 22, 2:53 AM CDT	Heat Advisory	OUN	42 hr
Aug 23, 2:16 AM CDT	Heat Advisory	OUN	43 hr
Aug 24, 2:19 AM CDT	Heat Advisory	OUN	43 hr
Sep 5, 4:15 AM CDT	Special Weather Statement	OUN	30 min
Sep 7, 9:43 PM CDT	Special Weather Statement	OUN	32 min
Sep 19, 11:24 AM CDT	Areal Flood Advisory	OUN	3 hr
Sep 19, 12:17 PM CDT	Special Weather Statement	OUN	28 min
Sep 19, 12:45 PM CDT	Special Weather Statement	OUN	30 min
Sep 19, 1:58 PM CDT	Special Weather Statement	OUN	17 min
Sep 19, 2:01 PM CDT	Areal Flood Advisory	OUN	3 hr
Sep 19, 2:06 PM CDT	Severe Thunderstorm Warning	OUN	24 min
Sep 19, 2:28 PM CDT	Severe Thunderstorm Warning	OUN	32 min
Sep 19, 2:54 PM CDT	Severe Thunderstorm Warning	OUN	51 min
Oct 4, 9:01 AM CDT	Special Weather Statement	OUN	29 min
Oct 4, 9:06 AM CDT	Special Weather Statement	OUN	24 min
Oct 4, 9:11 AM CDT	Severe Thunderstorm Warning	OUN	24 min
Oct 4, 9:29 AM CDT	Special Weather Statement	OUN	31 min
Oct 6, 2:31 PM CDT	Frost Advisory	OUN	17 hr
Oct 11, 2:25 PM CDT	Wind Advisory	OUN	29 hr
Oct 12, 3:21 PM CDT	Wind Advisory	OUN	26 hr
Oct 15, 3:32 AM CDT	Frost Advisory	OUN	29 hr
Oct 16, 3:11 PM CDT	Frost Advisory	OUN	18 hr
Oct 24, 1:43 PM CDT	Areal Flood Advisory	OUN	4 hr
Oct 29, 4:34 AM CDT	Freeze Warning	OUN	28 hr
Nov 6, 6:28 PM CST	Dense Fog Advisory	OUN	16 hr
Nov 24, 2:46 AM CST	Winter Weather Advisory	OUN	47 hr
Nov 25, 8:55 AM CST	Mesoscale Discussion	SPC	4 hr
Nov 25, 12:58 PM CST	Mesoscale Discussion	SPC	5 hr
Dec 2, 3:13 AM CST	Freezing Fog Advisory	OUN	6 hr
Dec 2, 6:29 AM CST	Dense Fog Advisory	OUN	5 hr
Dec 3, 3:17 AM CST	Dense Fog Advisory	OUN	7 hr
Dec 7, 3:05 AM CST	Wind Advisory	OUN	15 hr
Dec 22, 6:56 PM CST	Dense Fog Advisory	OUN	16 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
Tornado Warning	8
Severe Thunderstorm Watch	11
Tornado Watch	1
Mesoscale Discussion	26
Special Weather Statement	41
Flooding
Flood Watch	2
Areal Flood Advisory	6
Winter
Winter Weather Advisory	3
Heat
Excessive Heat Warning	6
Heat Advisory	26
Cold
Freeze Warning	1
Frost Advisory	4
Wind and dust
High Wind Warning	1
Wind Advisory	11
Fire
Red Flag Warning	2
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	6
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 2022 2024

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.