Weather alerts in Hancock County, Iowa, 2025

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

Hancock County and its neighbors

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

Alerts: 130
Warnings: 42
Watches: 20
Advisories: 41
Busiest month: March20 alerts
Busiest day: March 14, 20256 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 2 tornado warnings covering Hancock County in 2025 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Hancock County, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	1	50%	1	0%
Severe thunderstorm warnings	25	19	24%	15	60%	31 min
Flash flood warnings	0			0

Each office's whole area, 2025

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Des Moines, IA: tornado warnings	24	1	96%	5	20%	0 min
NWS Des Moines, IA: severe thunderstorm warnings	254	125	51%	349	78%	23 min
NWS Des Moines, IA: flash flood warnings	18	7	61%	11	82%	79 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 17, 2:37 PM CST	Cold Weather Advisory	DMX	45 hr
Jan 19, 2:48 AM CST	Cold Weather Advisory	DMX	32 hr
Jan 20, 2:46 AM CST	Cold Weather Advisory	DMX	33 hr
Jan 20, 2:46 AM CST	Extreme Cold Warning	DMX	33 hr
Feb 4, 1:55 PM CST	Winter Weather Advisory	DMX	34 hr
Feb 6, 3:19 AM CST	Wind Advisory	DMX	15 hr
Feb 10, 2:57 AM CST	Winter Weather Advisory	DMX	24 hr
Feb 11, 2:50 AM CST	Winter Weather Advisory	DMX	42 hr
Feb 12, 2:32 AM CST	Cold Weather Advisory	DMX	30 hr
Feb 14, 12:11 PM CST	Winter Weather Advisory	DMX	26 hr
Feb 16, 3:18 AM CST	Cold Weather Advisory	DMX	42 hr
Feb 16, 3:18 AM CST	Extreme Cold Watch	DMX	24 hr
Feb 17, 3:44 AM CST	Extreme Cold Warning	DMX	32 hr
Feb 18, 3:24 AM CST	Cold Weather Advisory	DMX	33 hr
Feb 19, 3:37 AM CST	Cold Weather Advisory	DMX	29 hr
Feb 27, 2:09 PM CST	Red Flag Warning	DMX	28 hr
Feb 27, 2:09 PM CST	Wind Advisory	DMX	28 hr
Feb 28, 2:12 PM CST	High Wind Warning	DMX	4 hr
Mar 3, 2:56 AM CST	Winter Storm Watch	DMX	24 hr
Mar 3, 2:39 PM CST	High Wind Watch	DMX	12 hr
Mar 4, 2:36 AM CST	High Wind Warning	DMX	36 hr
Mar 4, 11:51 AM CST	Blizzard Warning	DMX	27 hr
Mar 4, 12:40 PM CST	High Wind Warning	DMX	29 hr
Mar 4, 2:50 PM CST	Winter Weather Advisory	DMX	27 hr
Mar 4, 11:17 PM CST	Mesoscale Discussion	SPC	4 hr
Mar 14, 3:14 AM CDT	Red Flag Warning	DMX	17 hr
Mar 14, 2:38 PM CDT	Wind Advisory	DMX	27 hr
Mar 14, 5:01 PM CDT	Mesoscale Discussion	SPC	89 min
Mar 14, 5:43 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 14, 5:49 PM CDT	Severe Thunderstorm Warning	DMX	56 min
Mar 14, 6:50 PM CDT	Severe Thunderstorm Warning	DMX	55 min
Mar 14, 7:11 PM CDT	Severe Thunderstorm Warning	DMX	64 min
Mar 17, 3:28 AM CDT	Winter Storm Watch	DMX	36 hr
Mar 17, 2:50 PM CDT	High Wind Watch	DMX	24 hr
Mar 18, 4:10 AM CDT	Blizzard Warning	DMX	41 hr
Mar 18, 4:10 AM CDT	High Wind Warning	DMX	42 hr
Mar 19, 5:54 AM CDT	Mesoscale Discussion	SPC	5 hr
Mar 22, 2:22 PM CDT	Wind Advisory	DMX	29 hr
Apr 2, 3:05 AM CDT	Wind Advisory	DMX	16 hr
Apr 14, 5:35 PM CDT	Special Weather Statement	DMX	85 min
Apr 17, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Apr 17, 5:56 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 18, 12:42 AM CDT	Mesoscale Discussion	SPC	3 hr
Apr 18, 2:10 AM CDT	Severe Thunderstorm Warning	DMX	50 min
Apr 18, 4:23 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	38 min
Apr 28, 2:25 PM CDT	Mesoscale Discussion	SPC	2 hr
Apr 28, 3:27 PM CDT	Tornado Watch	SPC	8 hr
Apr 28, 5:03 PM CDT	Wind Advisory	DMX	3 hr
Apr 28, 7:29 PM CDT	Severe Thunderstorm Warning	DMX	31 min
Apr 28, 7:59 PM CDT	Special Weather Statement	DMX	61 min
Apr 28, 8:34 PM CDT	Severe Thunderstorm Warning	DMX	41 min
Apr 28, 9:10 PM CDT	Severe Thunderstorm Warning	DMX	26 min
May 14, 9:28 PM CDT	Wind Advisory	DMX	24 hr
May 15, 2:27 PM CDT	Wind Advisory	DMX	31 hr
Jun 11, 1:56 PM CDT	Mesoscale Discussion	SPC	3 hr
Jun 11, 2:53 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 11, 4:15 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	45 min
Jun 11, 4:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	51 min
Jun 11, 4:58 PM CDT	Mesoscale Discussion	SPC	92 min
Jun 11, 5:30 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DMX	45 min
Jun 14, 6:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jun 16, 7:26 AM CDT	Severe Thunderstorm Warning	DMX	49 min
Jun 16, 9:57 AM CDT	Severe Thunderstorm Warning	DMX	48 min
Jun 18, 1:43 PM CDT	Extreme Heat Watch	DMX	38 hr
Jun 19, 1:55 PM CDT	Heat Advisory	DMX	4 days
Jun 20, 12:44 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 20, 2:42 AM CDT	Severe Thunderstorm Warning	DMX	48 min
Jun 20, 3:16 AM CDT	Severe Thunderstorm Warning	DMX	44 min
Jun 20, 4:01 AM CDT	Severe Thunderstorm Warning	DMX	44 min
Jun 20, 6:09 AM CDT	Severe Thunderstorm Warning	DMX	51 min
Jun 25, 11:28 AM CDT	Flood Watch	DMX	19 hr
Jun 25, 2:59 PM CDT	Tornado Watch	SPC	6 hr
Jun 26, 11:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 26, 4:12 PM CDT	Tornado Warning	DMX	28 min
Jul 10, 12:55 PM CDT	Mesoscale Discussion	SPC	3 hr
Jul 18, 11:30 PM CDT	Mesoscale Discussion	SPC	90 min
Jul 19, 1:54 AM CDT	Mesoscale Discussion	SPC	96 min
Jul 19, 2:51 AM CDT	Severe Thunderstorm Warning	DMX	24 min
Jul 22, 2:02 PM CDT	Heat Advisory	DMX	30 hr
Jul 26, 2:36 AM CDT	Extreme Heat Watch	DMX	11 hr
Jul 26, 2:04 PM CDT	Heat Advisory	DMX	30 hr
Jul 27, 4:09 AM CDT	Dense Fog Advisory	DMX	5 hr
Jul 27, 2:43 PM CDT	Heat Advisory	DMX	29 hr
Jul 27, 9:47 PM CDT	Mesoscale Discussion	SPC	118 min
Jul 27, 11:00 PM CDT	Special Weather Statement	DMX	45 min
Jul 27, 11:23 PM CDT	Severe Thunderstorm Warning	DMX	52 min
Jul 28, 12:28 AM CDT	Severe Thunderstorm Warning	DMX	47 min
Jul 28, 9:39 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 28, 10:07 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 28, 11:17 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DMX	73 min
Jul 29, 12:11 AM CDT	Severe Thunderstorm Warning	DMX	79 min
Aug 9, 2:40 AM CDT	Mesoscale Discussion	SPC	95 min
Aug 9, 5:31 AM CDT	Mesoscale Discussion	SPC	89 min
Aug 9, 6:04 AM CDT	Severe Thunderstorm Watch	SPC	5 hr
Aug 9, 7:29 AM CDT	Mesoscale Discussion	SPC	2 hr
Aug 15, 11:51 AM CDT	Mesoscale Discussion	SPC	114 min
Aug 15, 12:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Aug 15, 12:50 PM CDT	Severe Thunderstorm Warning	DMX	40 min
Aug 15, 1:41 PM CDT	Mesoscale Discussion	SPC	94 min
Aug 15, 2:00 PM CDT	Severe Thunderstorm Warning	DMX	45 min
Aug 15, 2:51 PM CDT	Heat Advisory	DMX	29 hr
Aug 17, 6:13 PM CDT	Tornado Warning Tornado observed	DMX	47 min
Aug 17, 6:43 PM CDT	Mesoscale Discussion	SPC	2 hr
Aug 19, 1:32 AM CDT	Dense Fog Advisory	DMX	7 hr
Sep 16, 3:50 PM CDT	Severe Thunderstorm Warning	DMX	25 min
Oct 20, 2:26 PM CDT	Wind Advisory	DMX	28 hr
Oct 30, 1:33 AM CDT	Dense Fog Advisory	DMX	9 hr
Nov 23, 2:30 PM CST	Dense Fog Advisory	DMX	21 hr
Nov 24, 2:32 PM CST	Wind Advisory	DMX	44 hr
Nov 25, 12:21 AM CST	Dense Fog Advisory	DMX	10 hr
Nov 26, 6:03 AM CST	Wind Advisory	DMX	5 hr
Nov 27, 3:21 AM CST	Winter Storm Watch	DMX	23 hr
Nov 27, 2:19 PM CST	Winter Storm Warning	DMX	60 hr
Dec 5, 3:03 AM CST	Winter Storm Watch	DMX	11 hr
Dec 5, 1:47 PM CST	Winter Storm Warning	DMX	37 hr
Dec 8, 2:24 PM CST	Winter Storm Watch	DMX	23 hr
Dec 9, 1:31 PM CST	High Wind Warning	DMX	19 hr
Dec 9, 1:31 PM CST	Winter Weather Advisory	DMX	16 hr
Dec 11, 2:31 AM CST	Winter Weather Advisory	DMX	19 hr
Dec 12, 2:20 PM CST	Cold Weather Advisory	DMX	44 hr
Dec 17, 2:58 AM CST	Wind Advisory	DMX	45 hr
Dec 18, 11:00 AM CST	Winter Weather Advisory	DMX	5 hr
Dec 18, 3:59 PM CST	Blizzard Warning	DMX	5 hr
Dec 24, 4:34 PM CST	Dense Fog Advisory	DMX	43 hr
Dec 26, 4:44 PM CST	Dense Fog Advisory	DMX	40 hr
Dec 27, 3:19 AM CST	Winter Storm Watch	DMX	18 hr
Dec 27, 9:44 PM CST	Blizzard Warning	DMX	35 hr
Dec 28, 9:52 AM CST	Mesoscale Discussion	SPC	6 hr
Dec 28, 5:53 PM CST	Mesoscale Discussion	SPC	5 hr
Dec 29, 8:42 AM CST	Winter Weather Advisory	DMX	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	25
Tornado Warning	2
Severe Thunderstorm Watch	6
Tornado Watch	2
Mesoscale Discussion	24
Special Weather Statement	3
Flooding
Flood Watch	1
Winter
Blizzard Warning	4
Winter Storm Warning	2
Winter Storm Watch	6
Winter Weather Advisory	9
Heat
Extreme Heat Watch	2
Heat Advisory	5
Cold
Extreme Cold Warning	2
Extreme Cold Watch	1
Cold Weather Advisory	8
Wind and dust
High Wind Warning	5
High Wind Watch	2
Wind Advisory	12
Fire
Red Flag Warning	2
Fog and smoke
Dense Fog Advisory	7

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.