Alert archive / Wisconsin / 2026

Weather alerts in Wisconsin, August 2026

222 weather alerts in August 2026, 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 August 2026. Tap one for its archive.

Alerts
222
Warnings
81
Watches
6
Advisories
30
Busiest day
August 18, 202641 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.

IssuedProductOfficeCountiesLasted
Aug 1, 10:01 AM CDTSmall Craft AdvisoryGRB33 hr
Aug 1, 1:36 PM CDTBeach Hazards StatementGRBManitowoc29 hr
Aug 3, 12:24 PM CDTBeach Hazards StatementMKXSheboygan34 hr
Aug 3, 12:25 PM CDTSmall Craft AdvisoryMKX34 hr
Aug 3, 1:29 PM CDTSmall Craft AdvisoryGRB33 hr
Aug 3, 1:30 PM CDTBeach Hazards StatementGRBDoor, Kewaunee, Manitowoc33 hr
Aug 5, 4:18 PM CDTSpecial Weather StatementMKXKenosha42 min
Aug 6, 3:09 AM CDTDense Fog AdvisoryGRBBrown, Calumet, Door, Kewaunee, Manitowoc, Marinette and 9 more6 hr
Aug 6, 3:15 AM CDTDense Fog AdvisoryMKXColumbia, Green Lake, Marquette6 hr
Aug 7, 3:20 AM CDTDense Fog AdvisoryARXCrawford, Grant, Richland, Vernon6 hr
Aug 7, 1:34 PM CDTMarine Dense Fog AdvisoryGRB2 hr
Aug 7, 3:11 PM CDTMesoscale DiscussionSPCAshland, Bayfield, Florence, Forest, Iron, Langlade and 7 more2 hr
Aug 7, 3:17 PM CDTSpecial Weather StatementARXJackson, Trempealeau28 min
Aug 7, 3:21 PM CDTSpecial Weather StatementGRBLincoln39 min
Aug 7, 3:50 PM CDTSevere Thunderstorm WatchSPCAshland, Florence, Forest, Iron, Langlade, Lincoln and 7 more5 hr
Aug 7, 4:21 PM CDTSpecial Weather StatementARXAdams, Crawford, Jackson, Juneau, Monroe, Richland and 1 more84 min
Aug 7, 4:21 PM CDTSpecial Weather StatementGRBLanglade39 min
Aug 7, 5:53 PM CDTMesoscale DiscussionSPCFlorence, Forest, Iron, Langlade, Lincoln, Marinette and 4 more2 hr
Aug 7, 6:04 PM CDTSpecial Weather StatementGRBVilas71 min
Aug 7, 6:26 PM CDTSpecial Weather StatementMKXRock79 min
Aug 7, 6:58 PM CDTSpecial Weather StatementGRBMarinette47 min
Aug 9, 3:19 AM CDTSpecial Weather StatementMPXDunn, Pepin, Pierce, Saint Croix56 min
Aug 9, 4:30 AM CDTSpecial Weather StatementMPXDunn, Saint Croix60 min
Aug 9, 4:58 AM CDTSpecial Weather StatementMPXPierce62 min
Aug 9, 6:04 AM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau41 min
Aug 9, 6:43 AM CDTSpecial Weather StatementARXJackson, Trempealeau32 min
Aug 9, 7:16 AM CDTSpecial Weather StatementARXJackson, La Crosse, Monroe44 min
Aug 9, 7:41 AM CDTSevere Thunderstorm WarningARXJuneau, Monroe34 min
Aug 9, 8:39 AM CDTSpecial Weather StatementARXJuneau36 min
Aug 9, 8:44 AM CDTSpecial Weather StatementMKXSauk61 min
Aug 9, 9:00 AM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake, Marquette, Sauk45 min
Aug 9, 9:16 AM CDTSpecial Weather StatementMPXPolk59 min
Aug 9, 9:20 AM CDTMesoscale DiscussionSPCColumbia, Dane, Dodge, Jefferson, Kenosha, Marquette and 6 more85 min
Aug 9, 9:22 AM CDTSpecial Weather StatementMPXChippewa38 min
Aug 9, 9:25 AM CDTSpecial Weather StatementMKXDane50 min
Aug 9, 9:28 AM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake47 min
Aug 9, 9:45 AM CDTSevere Thunderstorm WarningMKXColumbia, Dane45 min
Aug 9, 9:46 AM CDTSevere Thunderstorm WatchSPCDodge, Fond du Lac, Jefferson, Kenosha, Milwaukee, Ozaukee and 6 more6 hr
Aug 9, 9:52 AM CDTSevere Thunderstorm WarningMKXDodge53 min
Aug 9, 10:03 AM CDTSpecial Weather StatementMKXJefferson57 min
Aug 9, 10:19 AM CDTSevere Thunderstorm WarningMKXDodge, Jefferson41 min
Aug 9, 10:35 AM CDTSevere Thunderstorm WarningMKXJefferson40 min
Aug 9, 10:43 AM CDTSpecial Weather StatementMKXRock32 min
Aug 9, 10:56 AM CDTSpecial Weather StatementMKXMilwaukee, Waukesha34 min
Aug 9, 10:57 AM CDTSpecial Marine WarningMKX93 min
Aug 9, 11:03 AM CDTSevere Thunderstorm WarningMKXRacine, Walworth, Waukesha27 min
Aug 9, 11:10 AM CDTSevere Thunderstorm WarningMKXMilwaukee, Waukesha50 min
Aug 9, 11:28 AM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth47 min
Aug 9, 11:40 AM CDTAreal Flood AdvisoryMKXMilwaukee, Racine, Waukesha2 hr
Aug 9, 12:19 PM CDTSpecial Marine WarningMKX86 min
Aug 9, 9:28 PM CDTSpecial Weather StatementARXClark32 min
Aug 9, 9:33 PM CDTSpecial Weather StatementGRBMarathon42 min
Aug 9, 10:42 PM CDTSpecial Weather StatementMKXWalworth48 min
Aug 9, 10:50 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth40 min
Aug 9, 10:55 PM CDTSpecial Weather StatementMKXWalworth50 min
Aug 9, 11:49 PM CDTSevere Thunderstorm WarningMKXRacine, Waukesha26 min
Aug 9, 11:55 PM CDTSpecial Marine WarningMKX50 min
Aug 10, 12:05 AM CDTSpecial Weather StatementMKXWalworth25 min
Aug 10, 12:08 AM CDTSpecial Weather StatementMKXRacine22 min
Aug 10, 12:10 AM CDTAreal Flood AdvisoryMKXRacine, Walworth85 min
Aug 10, 12:25 AM CDTFlash Flood WarningMKXRacine, Walworth70 min
Aug 10, 12:37 AM CDTSpecial Weather StatementMKXKenosha38 min
Aug 10, 12:59 AM CDTSpecial Weather StatementMKXKenosha46 min
Aug 10, 4:59 AM CDTDense Fog AdvisoryDLHAshland, Burnett, Iron, Price, Sawyer, Washburn3 hr
Aug 10, 4:59 AM CDTDense Fog AdvisoryMPXBarron, Chippewa, Dunn, Eau Claire, Polk, Rusk and 1 more5 hr
Aug 10, 5:00 AM CDTDense Fog AdvisoryARXClark, Taylor4 hr
Aug 10, 5:05 AM CDTDense Fog AdvisoryGRBFlorence, Forest, Langlade, Lincoln, Marathon, Oneida and 1 more4 hr
Aug 10, 10:51 PM CDTMarine Dense Fog AdvisoryGRB11 hr
Aug 10, 11:15 PM CDTMarine Dense Fog AdvisoryMKX11 hr
Aug 11, 1:41 AM CDTSpecial Weather StatementARXGrant19 min
Aug 11, 2:01 AM CDTSpecial Weather StatementMKXLafayette29 min
Aug 11, 2:32 AM CDTSpecial Weather StatementMKXRock28 min
Aug 11, 2:41 AM CDTSevere Thunderstorm WarningMKXGreen, Rock18 min
Aug 11, 2:57 AM CDTSpecial Weather StatementMKXWalworth33 min
Aug 11, 3:02 AM CDTSevere Thunderstorm WarningMKXRock, Walworth28 min
Aug 11, 7:22 AM CDTSevere Thunderstorm WatchSPCCrawford, Dane, Grant, Green, Iowa, Jefferson and 9 more6 hr
Aug 11, 7:37 AM CDTSevere Thunderstorm Warning Considerable damage threatARXGrant54 min
Aug 11, 8:47 AM CDTSevere Thunderstorm Warning Considerable damage threatMKXGreen, Lafayette52 min
Aug 11, 9:00 AM CDTMesoscale DiscussionSPCGrant, Green, Iowa, Kenosha, Lafayette, Rock and 1 more2 hr
Aug 11, 9:36 AM CDTAreal Flood AdvisoryMKXDane, Green, Iowa3 hr
Aug 11, 8:04 PM CDTMesoscale DiscussionSPCGrant, Lafayette2 hr
Aug 11, 10:04 PM CDTMesoscale DiscussionSPCBrown, Calumet, Clark, Eau Claire, Jackson, Kewaunee and 14 more116 min
Aug 11, 10:15 PM CDTSpecial Weather StatementGRBMarathon, Menominee, Oconto, Shawano45 min
Aug 11, 10:24 PM CDTSpecial Weather StatementARXClark36 min
Aug 11, 10:43 PM CDTSevere Thunderstorm WarningGRBMarathon62 min
Aug 11, 11:01 PM CDTSpecial Weather StatementGRBMenominee, Oconto59 min
Aug 11, 11:11 PM CDTSpecial Weather StatementARXClark34 min
Aug 11, 11:26 PM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Wood64 min
Aug 12, 12:14 AM CDTSpecial Weather StatementARXClark31 min
Aug 12, 12:19 AM CDTSpecial Weather StatementGRBWood26 min
Aug 12, 12:21 AM CDTSevere Thunderstorm WarningARXClark9 min
Aug 12, 12:22 AM CDTSevere Thunderstorm WarningGRBWood38 min
Aug 12, 12:27 AM CDTSevere Thunderstorm WarningGRBMarathon46 min
Aug 12, 12:34 AM CDTSevere Thunderstorm WarningGRBPortage, Wood56 min
Aug 12, 1:05 AM CDTSevere Thunderstorm WarningGRBLanglade, Marathon, Menominee, Shawano40 min
Aug 12, 1:15 AM CDTSpecial Weather StatementARXAdams45 min
Aug 12, 1:20 AM CDTSevere Thunderstorm WarningARXAdams, Juneau25 min
Aug 12, 1:22 AM CDTSpecial Weather StatementGRBWaushara38 min
Aug 12, 1:39 AM CDTSpecial Weather StatementGRBMenominee66 min
Aug 12, 1:45 AM CDTSevere Thunderstorm WarningARXAdams26 min
Aug 12, 2:07 AM CDTSevere Thunderstorm WarningGRBMenominee, Oconto53 min
Aug 12, 2:48 AM CDTSevere Thunderstorm WarningGRBMarinette, Oconto42 min
Aug 12, 2:48 AM CDTSpecial Weather StatementMKXColumbia42 min
Aug 12, 3:13 AM CDTSpecial Weather StatementGRBBrown47 min
Aug 12, 3:25 AM CDTSpecial Weather StatementGRBOconto35 min
Aug 12, 3:31 AM CDTSpecial Weather StatementMQTMarinette44 min
Aug 12, 6:46 AM CDTMarine Dense Fog AdvisoryGRB3 hr
Aug 12, 6:47 AM CDTMarine Dense Fog AdvisoryMKX5 hr
Aug 13, 5:03 AM CDTDense Fog AdvisoryMKXColumbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 9 more4 hr
Aug 13, 5:05 AM CDTDense Fog AdvisoryGRBCalumet, Waushara, Winnebago4 hr
Aug 13, 1:26 PM CDTSpecial Weather StatementGRBKewaunee34 min
Aug 14, 4:05 AM CDTBeach Hazards StatementDLHDouglas17 hr
Aug 14, 1:32 PM CDTBeach Hazards StatementMKXMilwaukee, Ozaukee, Sheboygan29 hr
Aug 14, 1:34 PM CDTSmall Craft AdvisoryMKX29 hr
Aug 14, 2:05 PM CDTSmall Craft AdvisoryGRB29 hr
Aug 14, 2:07 PM CDTBeach Hazards StatementGRBKewaunee, Manitowoc29 hr
Aug 18, 1:52 PM CDTMesoscale DiscussionSPCAdams, Buffalo, Crawford, Grant, Iowa, Jackson and 7 more113 min
Aug 18, 2:28 PM CDTSevere Thunderstorm WarningARXGrant46 min
Aug 18, 2:36 PM CDTSevere Thunderstorm WarningARXBuffalo, La Crosse, Trempealeau39 min
Aug 18, 2:44 PM CDTSevere Thunderstorm WarningGRBMarinette33 min
Aug 18, 2:44 PM CDTSpecial Weather StatementMKXDodge61 min
Aug 18, 2:45 PM CDTSpecial Marine WarningGRB101 min
Aug 18, 2:48 PM CDTSevere Thunderstorm WatchSPCAdams, Calumet, Columbia, Crawford, Dane, Dodge and 27 more6 hr
Aug 18, 3:03 PM CDTSevere Thunderstorm WarningARXLa Crosse, Vernon57 min
Aug 18, 3:03 PM CDTSpecial Weather StatementGRBMarinette27 min
Aug 18, 3:22 PM CDTSpecial Weather StatementGRBPortage38 min
Aug 18, 3:34 PM CDTSpecial Weather StatementGRBMarinette26 min
Aug 18, 3:41 PM CDTSpecial Weather StatementMQTMarinette49 min
Aug 18, 3:50 PM CDTSpecial Weather StatementGRBDoor25 min
Aug 18, 3:54 PM CDTSevere Thunderstorm WarningARXJuneau, Monroe, Richland, Vernon66 min
Aug 18, 3:55 PM CDTSevere Thunderstorm WarningGRBWaushara49 min
Aug 18, 3:57 PM CDTSevere Thunderstorm WarningMKXColumbia, Sauk78 min
Aug 18, 3:59 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette76 min
Aug 18, 4:11 PM CDTTornado WarningGRBWaushara30 min
Aug 18, 4:11 PM CDTSpecial Marine WarningMKX2 hr
Aug 18, 4:12 PM CDTTornado WarningMKXGreen Lake, Marquette48 min
Aug 18, 4:28 PM CDTSpecial Weather StatementGRBDoor47 min
Aug 18, 4:48 PM CDTTornado WarningMKXColumbia, Sauk42 min
Aug 18, 4:52 PM CDTSevere Thunderstorm WarningMKXFond du Lac, Sheboygan38 min
Aug 18, 4:52 PM CDTMesoscale DiscussionSPCDoor, Kewaunee, Manitowoc113 min
Aug 18, 4:56 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac49 min
Aug 18, 5:04 PM CDTSpecial Marine WarningGRB56 min
Aug 18, 5:07 PM CDTSpecial Marine WarningGRB83 min
Aug 18, 5:07 PM CDTAreal Flood AdvisoryMKXGreen Lake, Marquette3 hr
Aug 18, 5:08 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Sauk52 min
Aug 18, 5:16 PM CDTSevere Thunderstorm WarningMKXFond du Lac33 min
Aug 18, 5:27 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Sheboygan, Washington63 min
Aug 18, 5:29 PM CDTMesoscale DiscussionSPCColumbia, Crawford, Dane, Dodge, Fond du Lac, Grant and 16 more2 hr
Aug 18, 5:42 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Dodge, Jefferson63 min
Aug 18, 5:45 PM CDTTornado WarningMKXColumbia, Dane, Dodge18 min
Aug 18, 5:54 PM CDTSevere Thunderstorm WarningMKXDodge, Washington36 min
Aug 18, 6:23 PM CDTSevere Thunderstorm WarningMKXDane, Dodge, Jefferson, Milwaukee, Ozaukee, Washington and 1 more67 min
Aug 18, 6:28 PM CDTSpecial Marine WarningMKX2 hr
Aug 18, 6:33 PM CDTTornado WarningMKXWashington, Waukesha42 min
Aug 18, 6:42 PM CDTTornado WarningMKXWaukesha33 min
Aug 18, 6:51 PM CDTTornado WarningMKXMilwaukee23 min
Aug 18, 6:54 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Racine, Waukesha51 min
Aug 18, 7:01 PM CDTSpecial Weather StatementGRBKewaunee44 min
Aug 18, 7:10 PM CDTSpecial Marine WarningMKX2 hr
Aug 18, 7:22 PM CDTSpecial Marine WarningGRB38 min
Aug 18, 7:37 PM CDTSpecial Weather StatementGRBKewaunee23 min
Aug 18, 7:43 PM CDTSpecial Weather StatementMKXKenosha, Racine47 min
Aug 18, 8:04 PM CDTSpecial Marine WarningGRB41 min
Aug 18, 8:12 PM CDTSpecial Weather StatementGRBBrown, Kewaunee63 min
Aug 21, 5:53 AM CDTSpecial Weather StatementGRBWaushara37 min
Aug 21, 2:22 PM CDTMesoscale DiscussionSPCGrant, Green, Iowa, Lafayette, Rock113 min
Aug 21, 2:30 PM CDTSevere Thunderstorm WarningARXCrawford, Grant46 min
Aug 21, 2:53 PM CDTSpecial Weather StatementMKXSauk52 min
Aug 21, 2:57 PM CDTSevere Thunderstorm WatchSPCColumbia, Dane, Grant, Green, Iowa, Jefferson and 6 more9 hr
Aug 21, 3:23 PM CDTSevere Thunderstorm WarningMKXIowa, Sauk52 min
Aug 21, 3:54 PM CDTSevere Thunderstorm WarningMKXDane, Iowa66 min
Aug 21, 3:56 PM CDTSpecial Weather StatementMKXSauk49 min
Aug 21, 4:18 PM CDTTornado WarningMKXDane28 min
Aug 21, 4:41 PM CDTSpecial Weather StatementMKXMarquette49 min
Aug 21, 4:47 PM CDTSpecial Weather StatementGRBWinnebago28 min
Aug 21, 4:50 PM CDTSpecial Weather StatementGRBWaupaca25 min
Aug 21, 5:14 PM CDTSpecial Weather StatementMKXLafayette31 min
Aug 21, 5:41 PM CDTSpecial Weather StatementGRBWaupaca34 min
Aug 21, 6:06 PM CDTSpecial Weather StatementMKXFond du Lac39 min
Aug 21, 6:29 PM CDTSpecial Weather StatementGRBWaupaca31 min
Aug 21, 6:40 PM CDTSevere Thunderstorm WarningGRBOutagamie, Waupaca45 min
Aug 21, 7:03 PM CDTSevere Thunderstorm WarningGRBWaushara, Winnebago29 min
Aug 22, 10:43 AM CDTSmall Craft AdvisoryGRB23 hr
Aug 22, 12:54 PM CDTSpecial Weather StatementMKXSheboygan36 min
Aug 22, 1:56 PM CDTSpecial Marine WarningMKX34 min
Aug 22, 2:13 PM CDTSpecial Marine WarningMKX26 min
Aug 22, 2:29 PM CDTSpecial Weather StatementGRBBrown46 min
Aug 22, 3:26 PM CDTSpecial Weather StatementGRBManitowoc34 min
Aug 22, 3:39 PM CDTSpecial Weather StatementGRBCalumet51 min
Aug 22, 4:04 PM CDTSpecial Marine WarningMKX26 min
Aug 22, 4:20 PM CDTSpecial Weather StatementMKXFond du Lac55 min
Aug 22, 4:37 PM CDTSpecial Weather StatementGRBBrown38 min
Aug 24, 12:40 PM CDTBeach Hazards StatementMKXSheboygan33 hr
Aug 24, 12:42 PM CDTSmall Craft AdvisoryMKX33 hr
Aug 24, 9:28 PM CDTSmall Craft AdvisoryGRB38 hr
Aug 24, 9:29 PM CDTBeach Hazards StatementGRBDoor, Kewaunee, Manitowoc38 hr
Aug 25, 1:21 PM CDTMesoscale DiscussionSPCBarron, Bayfield, Burnett, Chippewa, Douglas, Dunn and 5 more114 min
Aug 25, 3:33 PM CDTSevere Thunderstorm WatchSPCAshland, Barron, Bayfield, Burnett, Douglas, Polk and 3 more6 hr
Aug 25, 5:23 PM CDTSevere Thunderstorm WarningDLHDouglas67 min
Aug 25, 5:52 PM CDTSevere Thunderstorm WarningDLHBurnett, Douglas, Washburn53 min
Aug 25, 6:38 PM CDTSevere Thunderstorm WarningDLHBurnett, Douglas, Washburn67 min
Aug 25, 6:48 PM CDTMesoscale DiscussionSPCBarron, Burnett, Douglas, Polk, Washburn87 min
Aug 25, 7:35 PM CDTSpecial Weather StatementMPXPolk40 min
Aug 25, 7:48 PM CDTSevere Thunderstorm WarningDLHSawyer, Washburn57 min
Aug 25, 7:55 PM CDTSpecial Weather StatementMPXBarron35 min
Aug 25, 8:27 PM CDTSpecial Weather StatementMPXBarron63 min
Aug 25, 11:29 PM CDTSpecial Weather StatementARXJackson, Trempealeau46 min
Aug 26, 1:23 AM CDTSpecial Weather StatementARXVernon37 min
Aug 26, 1:29 AM CDTSevere Thunderstorm WarningARXCrawford, Vernon34 min
Aug 26, 1:50 AM CDTSevere Thunderstorm WarningARXRichland40 min
Aug 26, 2:07 AM CDTSpecial Weather StatementMKXIowa23 min
Aug 26, 2:25 AM CDTSpecial Weather StatementARXRichland20 min
Aug 26, 2:28 AM CDTSevere Thunderstorm WarningMKXIowa47 min
Aug 26, 2:29 AM CDTSevere Thunderstorm WarningARXGrant, Richland16 min
Aug 26, 2:57 AM CDTSpecial Weather StatementMKXIowa48 min
Aug 26, 3:34 AM CDTSpecial Weather StatementMKXGreen56 min
Aug 29, 9:12 PM CDTSmall Craft AdvisoryMKX20 hr
Aug 30, 2:44 AM CDTBeach Hazards StatementDLHDouglas19 hr
Aug 30, 3:01 AM CDTSmall Craft AdvisoryGRB14 hr
Aug 30, 3:02 AM CDTBeach Hazards StatementGRBDoor, Kewaunee, Manitowoc14 hr
Aug 30, 1:39 PM CDTSmall Craft AdvisoryMKX3 hr
Aug 31, 1:14 PM CDTSmall Craft AdvisoryMKX5 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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 nowTornadoes on recordThe radar archive2025

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. Rebuilt daily.