Weather alerts in Wisconsin, April 2020

169 weather alerts in April 2020, 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 April 2020. Tap one for its archive.

Alerts: 169
Warnings: 55
Watches: 14
Advisories: 53
Busiest day: April 7, 202045 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
Apr 1, 10:09 AM CDT	River Flood Warning	ARX	Grant	15 days
Apr 1, 6:36 PM CDT	Marine Dense Fog Advisory	MKX		19 hr
Apr 2, 3:35 AM CDT	Winter Weather Advisory	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more	42 hr
Apr 2, 3:46 AM CDT	Winter Weather Advisory	DLH	Ashland, Bayfield, Burnett, Douglas, Iron, Price and 2 more	44 hr
Apr 3, 3:21 AM CDT	Winter Weather Advisory	ARX	Buffalo	16 hr
Apr 3, 9:42 AM CDT	River Flood Warning	MPX	Pierce	21 days
Apr 3, 9:42 AM CDT	River Flood Warning	MPX	Pierce	21 days
Apr 6, 11:03 PM CDT	Mesoscale Discussion	SPC	Kenosha	2 hr
Apr 7, 3:31 AM CDT	Dense Fog Advisory	ARX	Adams, Buffalo, Clark, Crawford, Grant, Jackson and 7 more	6 hr
Apr 7, 8:20 AM CDT	Special Weather Statement	DLH	Washburn	25 min
Apr 7, 8:30 AM CDT	Severe Thunderstorm Warning	DLH	Sawyer, Washburn	30 min
Apr 7, 8:58 AM CDT	Special Weather Statement	MPX	Rusk	77 min
Apr 7, 8:59 AM CDT	Special Weather Statement	DLH	Sawyer	31 min
Apr 7, 9:13 AM CDT	Severe Thunderstorm Warning	MPX	Rusk	47 min
Apr 7, 9:35 AM CDT	Special Weather Statement	GRB	Lincoln	70 min
Apr 7, 9:39 AM CDT	Severe Thunderstorm Warning	DLH	Price	51 min
Apr 7, 9:43 AM CDT	Severe Thunderstorm Warning	ARX	Taylor	47 min
Apr 7, 10:17 AM CDT	Severe Thunderstorm Warning	GRB	Lincoln	43 min
Apr 7, 10:58 AM CDT	Special Weather Statement	GRB	Langlade, Lincoln	47 min
Apr 7, 1:18 PM CDT	Gale Watch	MKX		38 hr
Apr 7, 1:18 PM CDT	Marine Dense Fog Advisory	MKX		24 hr
Apr 7, 1:35 PM CDT	Special Weather Statement	GRB	Forest	25 min
Apr 7, 1:53 PM CDT	Special Weather Statement	GRB	Marinette	37 min
Apr 7, 2:17 PM CDT	Special Weather Statement	GRB	Oconto	28 min
Apr 7, 2:34 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	26 min
Apr 7, 2:38 PM CDT	Special Marine Warning	GRB		67 min
Apr 7, 2:48 PM CDT	Severe Thunderstorm Warning	GRB	Door, Kewaunee	42 min
Apr 7, 2:58 PM CDT	Special Weather Statement	GRB	Oconto	47 min
Apr 7, 3:03 PM CDT	Marine Dense Fog Advisory	GRB		21 hr
Apr 7, 3:06 PM CDT	Mesoscale Discussion	SPC	Brown, Calumet, Columbia, Dane, Dodge, Fond du Lac and 15 more	114 min
Apr 7, 3:10 PM CDT	Severe Thunderstorm Warning	GRB	Door	24 min
Apr 7, 3:16 PM CDT	Special Marine Warning	GRB		89 min
Apr 7, 3:27 PM CDT	Severe Thunderstorm Warning	GRB	Door	16 min
Apr 7, 3:40 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee, Washington	35 min
Apr 7, 3:45 PM CDT	Special Weather Statement	GRB	Door	30 min
Apr 7, 3:55 PM CDT	Special Weather Statement	GRB	Marinette	20 min
Apr 7, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	Green, Jefferson, Kenosha, Lafayette, Milwaukee, Ozaukee and 6 more	5 hr
Apr 7, 3:56 PM CDT	Special Marine Warning	MKX		49 min
Apr 7, 4:06 PM CDT	Severe Thunderstorm Warning	MKX	Ozaukee	24 min
Apr 7, 4:18 PM CDT	Special Marine Warning	GRB		35 min
Apr 7, 4:34 PM CDT	Special Marine Warning	GRB		51 min
Apr 7, 4:35 PM CDT	Special Marine Warning	MKX		55 min
Apr 7, 4:43 PM CDT	Special Weather Statement	GRB	Door	17 min
Apr 7, 4:48 PM CDT	Special Weather Statement	ARX	Grant	27 min
Apr 7, 5:06 PM CDT	Severe Thunderstorm Warning	MKX	Lafayette	39 min
Apr 7, 5:07 PM CDT	Mesoscale Discussion	SPC	Green, Kenosha, Lafayette, Milwaukee, Rock, Walworth and 1 more	83 min
Apr 7, 5:26 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee	18 min
Apr 7, 5:29 PM CDT	Special Marine Warning	MKX		75 min
Apr 7, 5:34 PM CDT	Special Weather Statement	GRB	Door	26 min
Apr 7, 5:40 PM CDT	Severe Thunderstorm Warning	MKX	Green, Lafayette	50 min
Apr 7, 5:59 PM CDT	Mesoscale Discussion	SPC	Racine	91 min
Apr 7, 6:16 PM CDT	Severe Thunderstorm Warning	MKX	Green	24 min
Apr 8, 12:30 AM CDT	Dense Fog Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	10 hr
Apr 8, 12:46 AM CDT	Dense Fog Advisory	GRB	Brown, Calumet, Door, Kewaunee, Manitowoc, Marathon and 10 more	9 hr
Apr 8, 12:48 AM CDT	Dense Fog Advisory	ARX	Adams, Buffalo, Clark, Crawford, Grant, Jackson and 7 more	8 hr
Apr 8, 2:26 PM CDT	Small Craft Advisory	MKX		17 hr
Apr 8, 3:13 PM CDT	Small Craft Advisory	GRB		40 hr
Apr 8, 7:17 PM CDT	Marine Dense Fog Advisory	MKX		5 hr
Apr 9, 3:01 AM CDT	Gale Warning	MKX		24 hr
Apr 9, 7:13 AM CDT	Special Weather Statement	DLH	Bayfield	62 min
Apr 9, 7:30 AM CDT	Snow Squall Warning	DLH	Douglas	60 min
Apr 9, 8:31 AM CDT	Snow Squall Warning	DLH	Douglas	44 min
Apr 9, 9:18 AM CDT	Special Weather Statement	DLH	Douglas	57 min
Apr 9, 10:16 AM CDT	Special Weather Statement	DLH	Washburn	14 min
Apr 9, 12:27 PM CDT	Special Weather Statement	DLH	Burnett, Washburn	48 min
Apr 9, 6:58 PM CDT	Small Craft Advisory	MKX		8 hr
Apr 10, 3:09 PM CDT	Winter Storm Watch	ARX	Buffalo, Clark, Jackson, Taylor, Trempealeau	24 hr
Apr 10, 3:18 PM CDT	Winter Storm Watch	DLH	Ashland, Bayfield, Iron, Price, Sawyer, Washburn	24 hr
Apr 10, 3:26 PM CDT	Winter Storm Watch	GRB	Florence, Forest, Langlade, Lincoln, Marathon, Marinette and 3 more	23 hr
Apr 10, 3:30 PM CDT	Winter Storm Watch	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more	23 hr
Apr 11, 3:09 AM CDT	Gale Watch	MKX		24 hr
Apr 11, 2:40 PM CDT	Winter Storm Warning	GRB	Florence, Forest, Langlade, Lincoln, Marathon, Marinette and 7 more	46 hr
Apr 11, 2:40 PM CDT	Winter Weather Advisory	GRB	Marinette, Menominee, Oconto, Portage, Shawano, Waupaca and 1 more	42 hr
Apr 11, 2:42 PM CDT	Winter Storm Warning	MPX	Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 2 more	37 hr
Apr 11, 2:42 PM CDT	Winter Weather Advisory	MPX	Polk	33 hr
Apr 11, 2:44 PM CDT	Winter Storm Warning	ARX	Buffalo, Clark, Jackson, Taylor, Trempealeau	39 hr
Apr 11, 2:44 PM CDT	Winter Weather Advisory	ARX	Adams, Juneau, La Crosse, Monroe, Vernon	39 hr
Apr 11, 2:48 PM CDT	Small Craft Advisory	MKX		12 hr
Apr 11, 2:49 PM CDT	Lakeshore Flood Advisory	GRB	Brown, Door, Kewaunee, Manitowoc, Marinette, Oconto	52 hr
Apr 11, 3:04 PM CDT	Winter Storm Warning	DLH	Ashland, Bayfield, Iron, Price, Sawyer, Washburn	46 hr
Apr 11, 3:04 PM CDT	Winter Weather Advisory	DLH	Burnett, Douglas	32 hr
Apr 11, 3:29 PM CDT	Gale Watch	GRB		12 hr
Apr 11, 3:29 PM CDT	Small Craft Advisory	GRB		37 hr
Apr 12, 3:02 AM CDT	Gale Warning	MKX		46 hr
Apr 12, 3:49 AM CDT	Gale Warning	GRB		42 hr
Apr 12, 3:50 AM CDT	Wind Advisory	GRB	Brown, Calumet, Door, Kewaunee, Manitowoc, Outagamie and 1 more	39 hr
Apr 12, 5:09 AM CDT	Dense Fog Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 7 more	6 hr
Apr 12, 8:47 AM CDT	Marine Dense Fog Advisory	MKX		2 hr
Apr 12, 12:30 PM CDT	Areal Flood Advisory	GRB	Brown	15 hr
Apr 12, 12:38 PM CDT	Mesoscale Discussion	SPC	Barron, Chippewa, Dunn, Iron, Pepin, Pierce and 6 more	3 hr
Apr 12, 2:34 PM CDT	Wind Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 12 more	25 hr
Apr 12, 8:53 PM CDT	Small Craft Advisory	MKX		7 hr
Apr 13, 4:31 PM CDT	Special Weather Statement	DLH	Douglas	29 min
Apr 13, 4:36 PM CDT	Special Weather Statement	DLH	Burnett, Price, Sawyer, Washburn	54 min
Apr 13, 5:06 PM CDT	Special Weather Statement	DLH	Douglas	54 min
Apr 13, 7:02 PM CDT	Small Craft Advisory	MKX		26 hr
Apr 14, 3:07 AM CDT	Small Craft Advisory	GRB		18 hr
Apr 16, 1:57 PM CDT	Gale Watch	MKX		24 hr
Apr 17, 2:13 PM CDT	Gale Warning	MKX		32 hr
Apr 17, 3:12 PM CDT	Small Craft Advisory	GRB		40 hr
Apr 19, 2:29 PM CDT	Gale Watch	MKX		24 hr
Apr 19, 2:29 PM CDT	Small Craft Advisory	MKX		52 hr
Apr 19, 3:20 PM CDT	Small Craft Advisory	GRB		51 hr
Apr 20, 3:26 AM CDT	Gale Warning	MKX		38 hr
Apr 20, 4:03 PM CDT	Special Marine Warning	GRB		117 min
Apr 20, 4:15 PM CDT	Special Marine Warning	MKX		2 hr
Apr 20, 4:16 PM CDT	Special Weather Statement	MPX	Dunn, Pierce, Saint Croix	44 min
Apr 20, 4:42 PM CDT	Special Weather Statement	DLH	Bayfield, Douglas	48 min
Apr 20, 4:54 PM CDT	Special Weather Statement	MPX	Eau Claire, Pepin	51 min
Apr 20, 5:43 PM CDT	Special Marine Warning	MKX		2 hr
Apr 20, 5:50 PM CDT	Special Weather Statement	DLH	Iron, Sawyer	40 min
Apr 20, 5:58 PM CDT	Special Weather Statement	GRB	Marathon, Portage, Waupaca, Wood	47 min
Apr 20, 6:05 PM CDT	Special Weather Statement	DLH	Burnett, Douglas	40 min
Apr 20, 6:15 PM CDT	Special Weather Statement	MKX	Jefferson, Kenosha, Milwaukee, Racine, Rock, Walworth and 1 more	90 min
Apr 20, 6:23 PM CDT	Special Weather Statement	MKX	Jefferson	37 min
Apr 20, 6:36 PM CDT	Special Weather Statement	GRB	Outagamie, Portage, Shawano, Waupaca, Waushara, Winnebago	54 min
Apr 20, 6:58 PM CDT	Severe Thunderstorm Warning	GRB	Menominee, Outagamie, Portage, Shawano, Waupaca, Waushara and 1 more	47 min
Apr 20, 7:04 PM CDT	Severe Thunderstorm Warning	MKX	Green Lake, Marquette	56 min
Apr 20, 7:21 PM CDT	Special Marine Warning	GRB		54 min
Apr 20, 7:37 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Winnebago	56 min
Apr 20, 7:50 PM CDT	Special Marine Warning	GRB		85 min
Apr 20, 8:02 PM CDT	Special Weather Statement	MKX	Columbia, Dodge, Fond du Lac, Green Lake, Ozaukee, Sauk and 2 more	58 min
Apr 20, 8:03 PM CDT	Special Marine Warning	MKX		117 min
Apr 20, 8:25 PM CDT	Special Weather Statement	GRB	Marinette, Menominee, Shawano	65 min
Apr 20, 8:36 PM CDT	Special Weather Statement	MKX	Jefferson, Milwaukee, Waukesha	54 min
Apr 20, 9:14 PM CDT	Special Weather Statement	MKX	Kenosha, Milwaukee, Racine, Waukesha	61 min
Apr 20, 9:35 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Racine	25 min
Apr 20, 10:00 PM CDT	Special Marine Warning	MKX		45 min
Apr 22, 2:12 PM CDT	Small Craft Advisory	MKX		9 hr
Apr 22, 2:20 PM CDT	Special Weather Statement	ARX	Crawford	55 min
Apr 22, 3:16 PM CDT	Special Weather Statement	ARX	Crawford	59 min
Apr 22, 3:43 PM CDT	Severe Thunderstorm Warning	ARX	Crawford	32 min
Apr 22, 4:15 PM CDT	Special Weather Statement	ARX	Crawford	60 min
Apr 22, 5:03 PM CDT	Special Weather Statement	ARX	Vernon	42 min
Apr 22, 5:14 PM CDT	Special Weather Statement	ARX	Grant	61 min
Apr 23, 9:08 PM CDT	Marine Dense Fog Advisory	MKX		3 hr
Apr 25, 2:13 AM CDT	Small Craft Advisory	MKX		35 hr
Apr 27, 11:07 AM CDT	Small Craft Advisory	MKX		4 hr
Apr 27, 8:31 PM CDT	Marine Dense Fog Advisory	MKX		40 hr
Apr 27, 8:46 PM CDT	Marine Dense Fog Advisory	GRB		15 hr
Apr 27, 11:19 PM CDT	Dense Fog Advisory	MKX	Columbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 14 more	11 hr
Apr 28, 12:52 AM CDT	Dense Fog Advisory	GRB	Brown, Calumet, Door, Florence, Forest, Kewaunee and 16 more	10 hr
Apr 28, 2:47 AM CDT	Gale Watch	MKX		12 hr
Apr 28, 3:29 AM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Douglas, Iron	7 hr
Apr 28, 4:46 AM CDT	Lakeshore Flood Advisory	GRB	Brown, Door, Kewaunee, Marinette, Oconto	56 hr
Apr 28, 5:22 AM CDT	Small Craft Advisory	GRB		24 hr
Apr 28, 10:01 AM CDT	Dense Fog Advisory	DLH	Ashland, Bayfield, Douglas	119 min
Apr 28, 1:00 PM CDT	Marine Dense Fog Advisory	GRB		21 hr
Apr 28, 3:00 PM CDT	Gale Warning	MKX		52 hr
Apr 28, 5:54 PM CDT	Special Weather Statement	ARX	Juneau	36 min
Apr 28, 7:50 PM CDT	Special Weather Statement	ARX	Juneau	25 min
Apr 29, 1:05 AM CDT	Lakeshore Flood Warning	GRB	Brown, Oconto	18 hr
Apr 29, 2:47 AM CDT	Dense Fog Advisory	MKX	Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Rock and 4 more	7 hr
Apr 29, 3:06 AM CDT	Flood Watch	MKX	Kenosha, Milwaukee, Racine, Walworth, Waukesha	27 hr
Apr 29, 4:53 AM CDT	Gale Warning	GRB		32 hr
Apr 29, 5:50 AM CDT	Areal Flood Advisory	MKX	Walworth	3 hr
Apr 29, 8:48 AM CDT	Areal Flood Advisory	MKX	Kenosha, Racine, Walworth	8 hr
Apr 29, 9:20 AM CDT	River Flood Warning	MKX	Racine	65 hr
Apr 29, 9:20 AM CDT	River Flood Warning	MKX	Milwaukee	50 hr
Apr 29, 9:28 AM CDT	River Flood Watch	MKX	Kenosha	13 hr
Apr 29, 11:14 AM CDT	River Flood Warning	GRB	Brown	7 hr
Apr 29, 11:42 AM CDT	Special Weather Statement	GRB	Brown	93 min
Apr 29, 12:16 PM CDT	Wind Advisory	GRB	Brown	7 hr
Apr 29, 6:15 PM CDT	Lakeshore Flood Advisory	MKX	Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan	19 hr
Apr 29, 9:55 PM CDT	Areal Flood Advisory	MKX	Kenosha, Milwaukee, Racine	4 hr
Apr 29, 9:58 PM CDT	River Flood Warning	MKX	Kenosha	6 days
Apr 30, 12:58 PM CDT	Small Craft Advisory	GRB		6 hr
Apr 30, 3:29 PM CDT	Small Craft Advisory	MKX		7 hr
Apr 30, 4:32 PM CDT	River Flood Watch	MKX	Racine	5 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	20
Severe Thunderstorm Watch	1
Mesoscale Discussion	5
Special Weather Statement	42
Flooding
River Flood Warning	7
Flood Watch	1
River Flood Watch	2
Areal Flood Advisory	4
Winter
Snow Squall Warning	2
Winter Storm Warning	4
Winter Storm Watch	4
Winter Weather Advisory	7
Wind and dust
Wind Advisory	3
Fog and smoke
Dense Fog Advisory	10
Coast and beach
Lakeshore Flood Warning	1
Lakeshore Flood Advisory	3
Marine
Gale Warning	7
Special Marine Warning	14
Gale Watch	6
Marine Dense Fog Advisory	9
Small Craft Advisory	17

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 2019 2021

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.