Alert archive / Minnesota / Winona County

Weather alerts in Winona County, Minnesota, 2024

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

Winona County and its neighbors

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

Alerts: 111
Warnings: 27
Watches: 15
Advisories: 37
Busiest month: June27 alerts
Busiest day: May 21, 20248 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 Winona County in 2024 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Winona County, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	1	50%	1	0%
Severe thunderstorm warnings	14	12	14%	18	89%	27 min
Flash flood warnings	1	1	0%	3	67%	41 min

Each office's whole area, 2024

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS La Crosse, WI: tornado warnings	21	7	67%	20	60%	17 min
NWS La Crosse, WI: severe thunderstorm warnings	136	75	45%	265	71%	20 min
NWS La Crosse, WI: flash flood warnings	21	12	43%	40	53%	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 8, 2:34 AM CST	Winter Storm Watch	ARX	9 hr
Jan 8, 11:45 AM CST	Winter Weather Advisory	ARX	33 hr
Jan 10, 2:28 PM CST	Winter Storm Watch	ARX	24 hr
Jan 11, 2:25 AM CST	Winter Storm Warning	ARX	46 hr
Jan 12, 2:49 PM CST	Winter Weather Advisory	ARX	36 hr
Jan 13, 3:05 AM CST	Wind Chill Advisory	ARX	4 days
Jan 18, 2:59 AM CST	Wind Chill Advisory	ARX	31 hr
Jan 19, 2:10 AM CST	Wind Chill Advisory	ARX	31 hr
Jan 20, 3:11 AM CST	Wind Chill Advisory	ARX	30 hr
Jan 25, 2:22 PM CST	Dense Fog Advisory	ARX	20 hr
Jan 26, 1:44 PM CST	Dense Fog Advisory	ARX	21 hr
Jan 27, 1:33 PM CST	Dense Fog Advisory	ARX	41 hr
Jan 31, 2:01 PM CST	Dense Fog Advisory	ARX	21 hr
Feb 8, 1:35 AM CST	Wind Advisory	ARX	16 hr
Feb 14, 3:15 AM CST	Winter Weather Advisory	ARX	26 hr
Mar 3, 8:15 AM CST	Wind Advisory	ARX	10 hr
Mar 3, 8:39 AM CST	Red Flag Warning	ARX	9 hr
Mar 21, 3:21 AM CDT	Winter Weather Advisory	ARX	32 hr
Mar 23, 1:34 PM CDT	Winter Weather Advisory	ARX	35 hr
Apr 2, 3:55 AM CDT	Winter Weather Advisory	ARX	32 hr
Apr 2, 2:36 PM CDT	Wind Advisory	ARX	30 hr
Apr 15, 3:02 PM CDT	Wind Advisory	ARX	31 hr
Apr 18, 1:57 PM CDT	Frost Advisory	ARX	18 hr
Apr 19, 1:47 PM CDT	Freeze Warning	ARX	18 hr
Apr 20, 1:37 PM CDT	Freeze Warning	ARX	18 hr
Apr 23, 3:02 PM CDT	Freeze Warning	ARX	17 hr
Apr 26, 1:00 PM CDT	Special Weather Statement	ARX	60 min
May 3, 3:46 AM CDT	Dense Fog Advisory	ARX	5 hr
May 10, 6:32 PM CDT	Mesoscale Discussion	SPC	58 min
May 21, 1:31 AM CDT	Flood Watch	ARX	19 hr
May 21, 12:30 PM CDT	Special Weather Statement	ARX	45 min
May 21, 12:32 PM CDT	Mesoscale Discussion	SPC	118 min
May 21, 1:14 PM CDT	Tornado Watch PDS	SPC	8 hr
May 21, 5:51 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	39 min
May 21, 6:05 PM CDT	Tornado Warning	ARX	25 min
May 21, 6:16 PM CDT	Tornado Warning	ARX	16 min
May 21, 6:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	62 min
Jun 1, 9:32 PM CDT	Dense Fog Advisory	ARX	11 hr
Jun 3, 2:15 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 4, 6:51 PM CDT	Severe Thunderstorm Warning	ARX	24 min
Jun 4, 7:14 PM CDT	Special Weather Statement	ARX	31 min
Jun 4, 8:50 PM CDT	Severe Thunderstorm Warning	ARX	40 min
Jun 5, 2:57 PM CDT	Special Weather Statement	ARX	33 min
Jun 5, 7:28 PM CDT	Special Weather Statement	ARX	47 min
Jun 5, 8:11 PM CDT	Special Weather Statement	ARX	49 min
Jun 12, 12:06 PM CDT	Special Weather Statement	ARX	39 min
Jun 12, 2:34 PM CDT	Mesoscale Discussion	SPC	116 min
Jun 12, 3:23 PM CDT	Special Weather Statement	ARX	37 min
Jun 13, 12:00 PM CDT	Special Weather Statement	ARX	60 min
Jun 17, 2:55 AM CDT	Mesoscale Discussion	SPC	95 min
Jun 17, 3:09 AM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 17, 5:12 AM CDT	Mesoscale Discussion	SPC	2 hr
Jun 17, 6:33 AM CDT	Severe Thunderstorm Warning	ARX	42 min
Jun 17, 5:08 PM CDT	Severe Thunderstorm Watch	SPC	4 hr
Jun 17, 6:27 PM CDT	Special Weather Statement	ARX	78 min
Jun 17, 6:56 PM CDT	Special Weather Statement	ARX	64 min
Jun 20, 3:07 PM CDT	Flood Watch	ARX	52 hr
Jun 20, 9:34 PM CDT	River Flood Watch	ARX	13 hr
Jun 21, 10:52 AM CDT	River Flood Warning	ARX	20 days
Jun 21, 1:25 PM CDT	Mesoscale Discussion	SPC	2 hr
Jun 22, 4:18 AM CDT	Areal Flood Advisory	ARX	4 hr
Jun 24, 12:23 PM CDT	Flood Watch	ARX	15 hr
Jun 24, 4:49 PM CDT	Special Weather Statement	ARX	56 min
Jun 24, 5:37 PM CDT	Mesoscale Discussion	SPC	98 min
Jul 4, 1:58 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 13, 3:04 PM CDT	Mesoscale Discussion	SPC	86 min
Jul 13, 3:38 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 13, 4:34 PM CDT	Severe Thunderstorm Warning	ARX	41 min
Jul 13, 4:51 PM CDT	Severe Thunderstorm Warning	ARX	39 min
Jul 13, 5:12 PM CDT	Severe Thunderstorm Warning	ARX	48 min
Jul 13, 5:14 PM CDT	Mesoscale Discussion	SPC	91 min
Jul 13, 5:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	48 min
Jul 13, 6:46 PM CDT	Severe Thunderstorm Warning	ARX	44 min
Jul 13, 7:06 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	39 min
Jul 14, 12:56 AM CDT	Mesoscale Discussion	SPC	64 min
Jul 14, 1:30 AM CDT	Severe Thunderstorm Watch	SPC	3 hr
Jul 14, 2:46 AM CDT	Special Weather Statement	ARX	29 min
Jul 14, 2:50 AM CDT	Mesoscale Discussion	SPC	115 min
Jul 22, 4:29 AM CDT	Dense Fog Advisory	ARX	4 hr
Jul 31, 6:56 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 31, 8:41 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ARX	46 min
Jul 31, 8:55 PM CDT	Mesoscale Discussion	SPC	2 hr
Jul 31, 11:29 PM CDT	Mesoscale Discussion	SPC	61 min
Aug 5, 2:11 AM CDT	Flood Watch	ARX	22 hr
Aug 5, 8:39 PM CDT	Severe Thunderstorm Warning	ARX	51 min
Aug 24, 1:58 PM CDT	Heat Advisory	ARX	30 hr
Aug 25, 2:47 AM CDT	Excessive Heat Warning	ARX	41 hr
Aug 29, 5:37 PM CDT	Mesoscale Discussion	SPC	113 min
Aug 29, 8:07 PM CDT	Areal Flood Advisory	ARX	10 min
Aug 29, 8:17 PM CDT	Flash Flood Warning	ARX	3 hr
Sep 19, 2:10 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Sep 19, 4:35 PM CDT	Special Weather Statement	ARX	40 min
Sep 19, 7:54 PM CDT	Mesoscale Discussion	SPC	111 min
Sep 20, 3:24 AM CDT	Dense Fog Advisory	ARX	3 hr
Sep 21, 3:33 PM CDT	Severe Thunderstorm Warning	ARX	57 min
Oct 14, 3:22 AM CDT	Frost Advisory	ARX	30 hr
Oct 14, 2:20 PM CDT	Freeze Warning	ARX	43 hr
Oct 16, 2:45 PM CDT	Fire Weather Watch	ARX	11 hr
Oct 16, 2:45 PM CDT	Red Flag Warning	ARX	28 hr
Nov 3, 8:30 PM CST	Dense Fog Advisory	ARX	10 hr
Nov 15, 1:55 AM CST	Dense Fog Advisory	ARX	7 hr
Dec 3, 2:03 PM CST	Wind Advisory	ARX	32 hr
Dec 13, 3:47 AM CST	Winter Weather Advisory	ARX	47 hr
Dec 14, 8:16 PM CST	Dense Fog Advisory	ARX	36 hr
Dec 18, 1:25 PM CST	Winter Storm Warning	ARX	38 hr
Dec 18, 1:25 PM CST	Winter Weather Advisory	ARX	38 hr
Dec 19, 9:48 AM CST	Mesoscale Discussion	SPC	3 hr
Dec 26, 2:10 AM CST	Dense Fog Advisory	ARX	34 hr
Dec 26, 3:56 AM CST	Winter Weather Advisory	ARX	8 hr
Dec 28, 6:09 PM CST	Dense Fog Advisory	ARX	18 hr
Dec 29, 5:11 PM CST	Dense Fog Advisory	ARX	31 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	14
Tornado Warning	2
Severe Thunderstorm Watch	6
Tornado Watch	1
Mesoscale Discussion	18
Special Weather Statement	14
Flooding
Flash Flood Warning	1
River Flood Warning	1
Flood Watch	4
River Flood Watch	1
Areal Flood Advisory	2
Winter
Winter Storm Warning	2
Winter Storm Watch	2
Winter Weather Advisory	9
Heat
Excessive Heat Warning	1
Heat Advisory	1
Cold
Freeze Warning	4
Frost Advisory	2
Wind Chill Advisory	4
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	2
Fire Weather Watch	1
Fog and smoke
Dense Fog Advisory	14

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.