Weather alerts in Harrison County, Iowa, 2025

167 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Harrison County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts: 167
Warnings: 56
Watches: 27
Advisories: 49
Busiest month: July40 alerts
Busiest day: August 9, 20258 alerts

Over time

By month

Warning verification

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

0 of 2 tornado warnings covering Harrison County in 2025 had a tornado report inside them.

Harrison County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	31	18	42%	9	100%	26 min
Flash flood warnings	1	1	0%	0

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Omaha, NE: tornado warnings	23	10	57%	31	74%	20 min
NWS Omaha, NE: severe thunderstorm warnings	271	127	53%	461	87%	24 min
NWS Omaha, NE: flash flood warnings	17	6	65%	11	64%	58 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, 12:25 AM CST	Winter Weather Advisory	OAX	7 hr
Jan 17, 1:13 PM CST	Cold Weather Advisory	OAX	4 days
Jan 20, 12:58 AM CST	Extreme Cold Warning	OAX	34 hr
Feb 2, 3:56 AM CST	Dense Fog Advisory	OAX	7 hr
Feb 4, 1:44 PM CST	Winter Weather Advisory	OAX	31 hr
Feb 7, 1:14 PM CST	Winter Weather Advisory	OAX	17 hr
Feb 11, 2:49 AM CST	Winter Weather Advisory	OAX	39 hr
Feb 12, 2:31 AM CST	Cold Weather Advisory	OAX	31 hr
Feb 14, 1:14 PM CST	Winter Weather Advisory	OAX	29 hr
Feb 15, 1:34 PM CST	Cold Weather Advisory	OAX	19 hr
Feb 16, 3:36 AM CST	Extreme Cold Watch	OAX	59 hr
Feb 16, 3:37 AM CST	Winter Weather Advisory	OAX	62 hr
Feb 17, 2:51 AM CST	Extreme Cold Warning	OAX	33 hr
Feb 18, 2:51 AM CST	Cold Weather Advisory	OAX	33 hr
Feb 18, 2:21 PM CST	Extreme Cold Warning	OAX	43 hr
Feb 20, 3:21 AM CST	Cold Weather Advisory	OAX	30 hr
Feb 27, 1:36 PM CST	Red Flag Warning	OAX	29 hr
Mar 2, 1:50 PM CST	High Wind Watch	OAX	25 hr
Mar 3, 3:51 AM CST	Winter Storm Watch	OAX	11 hr
Mar 3, 2:45 PM CST	Blizzard Warning	OAX	36 hr
Mar 3, 3:06 PM CST	High Wind Warning	OAX	45 hr
Mar 4, 7:20 PM CST	Mesoscale Discussion	SPC	4 hr
Mar 4, 11:17 PM CST	Mesoscale Discussion	SPC	4 hr
Mar 5, 2:48 AM CST	Winter Weather Advisory	OAX	9 hr
Mar 6, 2:17 AM CST	Winter Weather Advisory	OAX	34 hr
Mar 9, 2:51 PM CDT	Red Flag Warning	OAX	29 hr
Mar 14, 3:19 PM CDT	Severe Thunderstorm Watch	SPC	5 hr
Mar 14, 4:24 PM CDT	Severe Thunderstorm Warning	OAX	51 min
Mar 14, 5:01 PM CDT	Mesoscale Discussion	SPC	89 min
Mar 14, 5:14 PM CDT	Severe Thunderstorm Warning	OAX	46 min
Mar 14, 5:41 PM CDT	Severe Thunderstorm Warning	OAX	49 min
Mar 14, 5:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	30 min
Mar 16, 11:58 AM CDT	Fire Weather Watch	OAX	15 hr
Mar 16, 3:10 PM CDT	Winter Storm Watch	OAX	36 hr
Mar 17, 2:40 AM CDT	Red Flag Warning	OAX	16 hr
Mar 17, 3:24 PM CDT	High Wind Watch	OAX	12 hr
Mar 18, 3:07 AM CDT	High Wind Warning	OAX	40 hr
Mar 18, 3:13 AM CDT	Blizzard Warning	OAX	41 hr
Mar 19, 3:14 AM CDT	Severe Thunderstorm Warning	OAX	20 min
Mar 19, 5:54 AM CDT	Mesoscale Discussion	SPC	5 hr
Mar 22, 2:18 PM CDT	Wind Advisory	OAX	29 hr
Mar 27, 2:22 PM CDT	Fire Weather Watch	OAX	12 hr
Mar 28, 2:03 AM CDT	Red Flag Warning	OAX	18 hr
Mar 31, 2:03 PM CDT	Wind Advisory	OAX	28 hr
Apr 1, 7:25 PM CDT	Severe Thunderstorm Watch	SPC	10 hr
Apr 1, 10:06 PM CDT	Severe Thunderstorm Warning	OAX	39 min
Apr 1, 10:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	50 min
Apr 13, 2:33 AM CDT	Fire Weather Watch	OAX	12 hr
Apr 13, 2:35 PM CDT	Red Flag Warning	OAX	30 hr
Apr 17, 2:53 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 17, 4:48 PM CDT	Tornado Watch	SPC	7 hr
Apr 17, 6:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	OAX	55 min
Apr 17, 7:23 PM CDT	Tornado Warning	OAX	37 min
Apr 21, 11:02 PM CDT	Severe Thunderstorm Warning	OAX	30 min
Apr 23, 4:43 PM CDT	Mesoscale Discussion	SPC	92 min
Apr 23, 7:13 PM CDT	Special Weather Statement	OAX	32 min
Apr 24, 6:09 PM CDT	Severe Thunderstorm Warning	OAX	36 min
Apr 24, 6:28 PM CDT	Tornado Warning	OAX	32 min
Apr 28, 3:28 PM CDT	Mesoscale Discussion	SPC	3 hr
May 14, 2:15 PM CDT	Wind Advisory	OAX	30 hr
May 15, 1:54 PM CDT	Wind Advisory	OAX	31 hr
May 19, 6:08 PM CDT	Mesoscale Discussion	SPC	2 hr
May 19, 6:44 PM CDT	Severe Thunderstorm Warning	OAX	46 min
May 19, 7:27 PM CDT	Severe Thunderstorm Warning	OAX	33 min
May 19, 7:59 PM CDT	Severe Thunderstorm Warning	OAX	15 min
Jun 2, 11:33 PM CDT	Mesoscale Discussion	SPC	87 min
Jun 16, 5:11 PM CDT	Severe Thunderstorm Watch	SPC	9 hr
Jun 16, 6:58 PM CDT	Severe Thunderstorm Warning	OAX	47 min
Jun 16, 7:16 PM CDT	Mesoscale Discussion	SPC	89 min
Jun 16, 7:56 PM CDT	Mesoscale Discussion	SPC	94 min
Jun 18, 1:42 PM CDT	Extreme Heat Watch	OAX	24 hr
Jun 19, 4:57 AM CDT	Special Weather Statement	OAX	3 hr
Jun 19, 1:42 PM CDT	Extreme Heat Warning	OAX	3 days
Jun 19, 11:14 PM CDT	Severe Thunderstorm Warning	OAX	46 min
Jun 23, 2:34 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 25, 11:08 AM CDT	Flood Watch	OAX	20 hr
Jun 25, 2:38 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 25, 5:24 PM CDT	Mesoscale Discussion	SPC	96 min
Jul 7, 3:14 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jul 7, 7:45 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 7, 8:36 PM CDT	Severe Thunderstorm Warning	OAX	39 min
Jul 7, 9:04 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 7, 9:07 PM CDT	Severe Thunderstorm Warning	OAX	38 min
Jul 7, 9:29 PM CDT	Severe Thunderstorm Warning	OAX	46 min
Jul 7, 9:57 PM CDT	Severe Thunderstorm Warning	OAX	48 min
Jul 10, 1:39 AM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 1:14 PM CDT	Flood Watch	OAX	18 hr
Jul 10, 2:20 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 3:11 PM CDT	Tornado Watch	SPC	7 hr
Jul 10, 6:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 10, 7:46 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 10, 10:01 PM CDT	Severe Thunderstorm Warning	OAX	44 min
Jul 10, 10:26 PM CDT	Severe Thunderstorm Warning	OAX	64 min
Jul 10, 10:51 PM CDT	Mesoscale Discussion	SPC	114 min
Jul 13, 7:03 AM CDT	Dense Fog Advisory	OAX	82 min
Jul 15, 8:41 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 15, 10:45 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 19, 5:18 PM CDT	Mesoscale Discussion	SPC	117 min
Jul 19, 7:38 PM CDT	Severe Thunderstorm Warning	OAX	9 min
Jul 20, 2:40 PM CDT	Heat Advisory	OAX	23 hr
Jul 22, 2:17 PM CDT	Heat Advisory	OAX	30 hr
Jul 23, 9:28 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 25, 2:59 AM CDT	Dense Fog Advisory	OAX	4 hr
Jul 25, 7:55 AM CDT	Dense Fog Advisory	OAX	64 min
Jul 26, 2:46 AM CDT	Extreme Heat Watch	OAX	11 hr
Jul 26, 2:46 AM CDT	Extreme Heat Watch	OAX	11 hr
Jul 26, 1:55 PM CDT	Extreme Heat Warning	OAX	55 hr
Jul 28, 1:34 AM CDT	Mesoscale Discussion	SPC	86 min
Jul 28, 3:07 AM CDT	Severe Thunderstorm Warning	OAX	38 min
Jul 28, 2:42 PM CDT	Heat Advisory	OAX	29 hr
Jul 29, 2:39 PM CDT	Flood Watch	OAX	14 hr
Jul 29, 8:24 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 29, 9:26 PM CDT	Mesoscale Discussion	SPC	94 min
Jul 29, 10:14 PM CDT	Severe Thunderstorm Warning	OAX	46 min
Jul 29, 11:20 PM CDT	Areal Flood Advisory	OAX	7 hr
Jul 29, 11:36 PM CDT	Severe Thunderstorm Warning	OAX	39 min
Jul 29, 11:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 30, 12:17 AM CDT	Severe Thunderstorm Warning	OAX	27 min
Aug 7, 2:19 PM CDT	Heat Advisory	OAX	30 hr
Aug 9, 2:17 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 9, 5:29 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	46 min
Aug 9, 6:04 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	41 min
Aug 9, 6:14 AM CDT	Areal Flood Advisory	OAX	5 hr
Aug 9, 6:27 AM CDT	Flash Flood Warning	OAX	4 hr
Aug 9, 6:40 AM CDT	Severe Thunderstorm Warning Destructive damage threat	OAX	50 min
Aug 9, 6:41 AM CDT	Areal Flood Advisory	OAX	3 hr
Aug 9, 7:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 14, 3:20 AM CDT	Heat Advisory	OAX	41 hr
Aug 14, 3:20 AM CDT	Heat Advisory	OAX	65 hr
Aug 17, 6:25 AM CDT	Heat Advisory	OAX	14 hr
Aug 18, 1:50 AM CDT	Mesoscale Discussion	SPC	85 min
Aug 19, 4:28 AM CDT	Dense Fog Advisory	OAX	6 hr
Aug 22, 2:31 PM CDT	Mesoscale Discussion	SPC	119 min
Sep 16, 2:21 PM CDT	Mesoscale Discussion	SPC	114 min
Sep 21, 3:33 AM CDT	Dense Fog Advisory	OAX	6 hr
Sep 22, 8:51 PM CDT	Mesoscale Discussion	SPC	114 min
Sep 22, 9:38 PM CDT	Severe Thunderstorm Warning	OAX	52 min
Sep 22, 10:16 PM CDT	Severe Thunderstorm Warning	OAX	27 min
Oct 21, 1:30 PM CDT	Frost Advisory	OAX	20 hr
Oct 22, 2:25 AM CDT	Freeze Warning	OAX	31 hr
Oct 28, 10:49 AM CDT	Wind Advisory	OAX	20 hr
Oct 30, 1:34 AM CDT	Dense Fog Advisory	OAX	9 hr
Nov 20, 5:05 AM CST	Dense Fog Advisory	OAX	7 hr
Nov 24, 1:56 PM CST	Wind Advisory	OAX	34 hr
Nov 24, 9:48 PM CST	Dense Fog Advisory	OAX	11 hr
Nov 27, 2:50 AM CST	Winter Storm Watch	OAX	13 hr
Nov 27, 2:07 PM CST	Winter Storm Warning	OAX	48 hr
Nov 27, 3:20 PM CST	Winter Weather Advisory	OAX	57 hr
Nov 29, 4:49 AM CST	Mesoscale Discussion	SPC	5 hr
Dec 5, 1:31 PM CST	Winter Weather Advisory	OAX	31 hr
Dec 9, 3:01 AM CST	Wind Advisory	OAX	30 hr
Dec 9, 11:16 AM CST	High Wind Warning	OAX	21 hr
Dec 17, 2:18 AM CST	High Wind Warning	OAX	40 hr
Dec 18, 12:48 PM CST	Special Weather Statement	OAX	87 min
Dec 24, 1:38 PM CST	Dense Fog Advisory	OAX	22 hr
Dec 25, 3:37 PM CST	Dense Fog Advisory	OAX	14 hr
Dec 26, 5:49 PM CST	Dense Fog Advisory	OAX	17 hr
Dec 27, 1:41 PM CST	Dense Fog Advisory	OAX	15 hr
Dec 27, 1:41 PM CST	Wind Advisory	OAX	19 hr
Dec 27, 2:03 PM CST	Winter Weather Advisory	OAX	28 hr
Dec 28, 8:14 AM CST	High Wind Warning	OAX	6 hr
Dec 28, 8:29 AM CST	Special Weather Statement	OAX	2 hr
Dec 28, 10:25 AM CST	Special Weather Statement	OAX	65 min
Dec 28, 10:39 AM CST	Snow Squall Warning Significant damage threat	OAX	36 min
Dec 28, 11:44 AM CST	Snow Squall Warning	OAX	61 min
Dec 28, 12:15 PM CST	Snow Squall Warning	OAX	60 min
Dec 28, 2:27 PM CST	Wind Advisory	OAX	3 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	31
Tornado Warning	2
Severe Thunderstorm Watch	10
Tornado Watch	2
Mesoscale Discussion	30
Special Weather Statement	5
Flooding
Flash Flood Warning	1
Flood Watch	3
Areal Flood Advisory	3
Winter
Blizzard Warning	2
Snow Squall Warning	3
Winter Storm Warning	1
Winter Storm Watch	3
Winter Weather Advisory	11
Heat
Extreme Heat Warning	2
Extreme Heat Watch	3
Heat Advisory	7
Cold
Extreme Cold Warning	3
Freeze Warning	1
Extreme Cold Watch	1
Cold Weather Advisory	5
Frost Advisory	1
Wind and dust
High Wind Warning	5
High Wind Watch	2
Wind Advisory	9
Fire
Red Flag Warning	5
Fire Weather Watch	3
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 2024 2026

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.