Weather alerts in Wisconsin, October 2021

93 weather alerts in October 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in October 2021. Tap one for its archive.

Alerts: 93
Warnings: 8
Watches: 1
Advisories: 56
Busiest day: October 10, 202115 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

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	Counties	Lasted
Sep 30, 7:17 PM CDT	Dense Fog Advisory	GRB	Brown, Calumet, Door, Kewaunee, Manitowoc, Marinette and 5 more	14 hr
Sep 30, 7:55 PM CDT	Dense Fog Advisory	MKX	Fond du Lac, Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan and 2 more	13 hr
Oct 1, 2:56 AM CDT	Marine Dense Fog Advisory	MKX		5 hr
Oct 1, 3:01 AM CDT	Marine Dense Fog Advisory	GRB		7 hr
Oct 3, 12:48 AM CDT	Dense Fog Advisory	GRB	Door, Florence, Forest, Kewaunee, Langlade, Lincoln and 7 more	9 hr
Oct 3, 12:54 AM CDT	Marine Dense Fog Advisory	GRB		31 hr
Oct 3, 2:49 PM CDT	Dense Fog Advisory	MPX	Barron, Pierce, Polk, Saint Croix	20 hr
Oct 3, 2:54 PM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Burnett, Douglas, Sawyer, Washburn	21 hr
Oct 3, 6:34 PM CDT	Marine Dense Fog Advisory	MKX		13 hr
Oct 4, 2:43 AM CDT	Small Craft Advisory	MKX		28 hr
Oct 4, 2:25 PM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Burnett, Douglas, Sawyer, Washburn	22 hr
Oct 4, 2:43 PM CDT	Dense Fog Advisory	MPX	Barron, Dunn, Pepin, Pierce, Polk, Rusk and 1 more	19 hr
Oct 5, 3:36 PM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Douglas, Iron	18 hr
Oct 5, 9:27 PM CDT	Marine Dense Fog Advisory	MKX		8 hr
Oct 5, 9:29 PM CDT	Marine Dense Fog Advisory	GRB		8 hr
Oct 6, 3:23 PM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Douglas	21 hr
Oct 7, 3:36 PM CDT	Dense Fog Advisory	DLH	Douglas	12 hr
Oct 7, 8:22 PM CDT	Dense Fog Advisory	MKX	Dane, Dodge, Green, Iowa, Jefferson, Kenosha and 8 more	14 hr
Oct 8, 2:56 PM CDT	Dense Fog Advisory	DLH	Burnett, Douglas, Sawyer, Washburn	22 hr
Oct 8, 9:30 PM CDT	Dense Fog Advisory	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Rusk	12 hr
Oct 8, 9:34 PM CDT	Dense Fog Advisory	ARX	Adams, Buffalo, Clark, Crawford, Grant, Jackson and 7 more	12 hr
Oct 8, 11:23 PM CDT	Dense Fog Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	12 hr
Oct 9, 2:55 AM CDT	Small Craft Advisory	MKX		43 hr
Oct 9, 3:42 AM CDT	Dense Fog Advisory	GRB	Calumet, Langlade, Lincoln, Marathon, Menominee, Oneida and 8 more	8 hr
Oct 9, 3:44 AM CDT	Small Craft Advisory	GRB		3 days
Oct 9, 4:26 PM CDT	Dense Fog Advisory	DLH	Douglas	12 hr
Oct 10, 12:14 AM CDT	Special Weather Statement	DLH	Price	31 min
Oct 10, 12:54 AM CDT	Special Weather Statement	DLH	Price	36 min
Oct 10, 1:00 AM CDT	Special Weather Statement	ARX	Taylor	15 min
Oct 10, 1:02 AM CDT	Special Weather Statement	GRB	Lincoln	58 min
Oct 10, 1:14 AM CDT	Special Weather Statement	DLH	Price	16 min
Oct 10, 1:26 AM CDT	Special Weather Statement	GRB	Oneida	49 min
Oct 10, 1:28 AM CDT	Special Weather Statement	DLH	Price	17 min
Oct 10, 2:12 AM CDT	Special Weather Statement	GRB	Vilas	63 min
Oct 10, 3:07 AM CDT	Special Weather Statement	GRB	Vilas	38 min
Oct 10, 6:21 AM CDT	Special Weather Statement	MKX	Lafayette	39 min
Oct 10, 7:07 AM CDT	Special Weather Statement	MKX	Green	23 min
Oct 10, 7:30 AM CDT	Special Weather Statement	MKX	Rock	30 min
Oct 10, 7:50 AM CDT	Special Weather Statement	MKX	Walworth	25 min
Oct 10, 8:01 AM CDT	Special Weather Statement	MKX	Jefferson	29 min
Oct 10, 8:30 AM CDT	Special Weather Statement	MKX	Waukesha	45 min
Oct 10, 9:52 PM CDT	Small Craft Advisory	MKX		34 hr
Oct 11, 12:37 PM CDT	Mesoscale Discussion	SPC	Dodge, Jefferson, Kenosha, Manitowoc, Milwaukee, Ozaukee and 6 more	113 min
Oct 11, 3:35 PM CDT	Special Weather Statement	GRB	Manitowoc	55 min
Oct 11, 4:30 PM CDT	Special Weather Statement	GRB	Manitowoc	45 min
Oct 11, 5:32 PM CDT	Special Marine Warning	MKX		58 min
Oct 12, 2:37 PM CDT	Small Craft Advisory	MKX		39 hr
Oct 12, 3:00 PM CDT	Small Craft Advisory	GRB		50 hr
Oct 15, 2:39 PM CDT	Small Craft Advisory	MKX		31 hr
Oct 15, 9:11 PM CDT	Small Craft Advisory	GRB		25 hr
Oct 16, 1:31 PM CDT	Frost Advisory	ARX	Adams, Clark, Jackson, Juneau, Monroe, Taylor	18 hr
Oct 16, 1:34 PM CDT	Frost Advisory	GRB	Langlade, Marathon, Portage, Wood	18 hr
Oct 17, 2:57 AM CDT	Small Craft Advisory	GRB		16 hr
Oct 17, 3:06 AM CDT	Small Craft Advisory	MKX		16 hr
Oct 17, 1:35 PM CDT	Frost Advisory	GRB	Marathon, Marinette, Menominee, Oconto, Portage, Shawano and 3 more	18 hr
Oct 17, 2:25 PM CDT	Frost Advisory	MPX	Chippewa, Eau Claire, Rusk	18 hr
Oct 17, 2:26 PM CDT	Frost Advisory	ARX	Adams, Clark, Jackson, Juneau, Monroe, Taylor	18 hr
Oct 17, 2:39 PM CDT	Frost Advisory	MKX	Green Lake, Marquette	17 hr
Oct 20, 3:16 AM CDT	Small Craft Advisory	GRB		43 hr
Oct 20, 3:26 AM CDT	Small Craft Advisory	MKX		49 hr
Oct 20, 1:44 PM CDT	Special Weather Statement	ARX	Buffalo	61 min
Oct 20, 1:57 PM CDT	Special Weather Statement	MPX	Polk	33 min
Oct 20, 2:11 PM CDT	Special Weather Statement	MPX	Eau Claire, Pepin	49 min
Oct 20, 2:30 PM CDT	Special Weather Statement	ARX	Trempealeau	30 min
Oct 20, 3:01 PM CDT	Special Weather Statement	ARX	Clark, Jackson	44 min
Oct 20, 5:18 PM CDT	Special Weather Statement	MKX	Walworth	27 min
Oct 20, 5:45 PM CDT	Special Weather Statement	MKX	Waukesha	15 min
Oct 20, 5:46 PM CDT	Special Weather Statement	GRB	Shawano	29 min
Oct 20, 6:02 PM CDT	Special Weather Statement	MKX	Milwaukee	13 min
Oct 20, 6:15 PM CDT	Special Marine Warning	MKX		60 min
Oct 20, 6:19 PM CDT	Special Weather Statement	MKX	Milwaukee	26 min
Oct 20, 8:26 PM CDT	Gale Warning	MKX		23 hr
Oct 21, 3:07 AM CDT	Frost Advisory	ARX	Crawford, Grant, La Crosse, Richland, Vernon	30 hr
Oct 21, 3:07 AM CDT	Freeze Warning	ARX	Buffalo, Trempealeau	30 hr
Oct 21, 2:17 PM CDT	Frost Advisory	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Winnebago	18 hr
Oct 21, 2:31 PM CDT	Frost Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	17 hr
Oct 22, 1:56 PM CDT	Freeze Warning	ARX	Crawford, Grant, La Crosse, Richland, Vernon	19 hr
Oct 22, 2:37 PM CDT	Frost Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	17 hr
Oct 22, 2:39 PM CDT	Gale Watch	MKX		24 hr
Oct 23, 2:43 PM CDT	Gale Warning	MKX		52 hr
Oct 23, 2:44 PM CDT	Lakeshore Flood Advisory	MKX	Kenosha, Milwaukee, Ozaukee, Racine	52 hr
Oct 23, 2:45 PM CDT	Wind Advisory	MKX	Kenosha, Milwaukee, Ozaukee, Racine	52 hr
Oct 23, 3:58 PM CDT	Small Craft Advisory	GRB		30 hr
Oct 24, 9:44 PM CDT	Gale Warning	GRB		12 hr
Oct 24, 9:44 PM CDT	Small Craft Advisory	GRB		36 hr
Oct 25, 6:57 PM CDT	Small Craft Advisory	MKX		18 hr
Oct 27, 3:28 AM CDT	Small Craft Advisory	MKX		55 hr
Oct 28, 4:11 AM CDT	Small Craft Advisory	GRB		60 hr
Oct 29, 2:31 AM CDT	Gale Warning	MKX		21 hr
Oct 29, 2:52 PM CDT	Small Craft Advisory	MKX		28 hr
Oct 30, 12:47 AM CDT	Dense Fog Advisory	DLH	Bayfield, Burnett, Douglas, Washburn	9 hr
Oct 30, 2:38 PM CDT	Small Craft Advisory	MKX		52 hr
Oct 30, 4:01 PM CDT	Small Craft Advisory	GRB		60 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
Mesoscale Discussion	1
Special Weather Statement	27
Cold
Freeze Warning	2
Frost Advisory	10
Wind and dust
Wind Advisory	1
Fog and smoke
Dense Fog Advisory	18
Coast and beach
Lakeshore Flood Advisory	1
Marine
Gale Warning	4
Special Marine Warning	2
Gale Watch	1
Marine Dense Fog Advisory	6
Small Craft Advisory	20

By county

Every county with at least one alert. A county page lists each alert that covered it.

32 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2020 2022

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.