Alert archive / Wisconsin / Manitowoc County

Weather alerts in Manitowoc County, Wisconsin, 2026

126 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Manitowoc County and its neighbors

Each county as a circle sized by its count in 2026. Tap one for its archive.

Alerts
126
Warnings
25
Watches
16
Advisories
32
Busiest month
April26 alerts
Busiest day
April 14, 202610 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

0 of 1 tornado warnings covering Manitowoc County in 2026 had a tornado report inside them.

Manitowoc County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings12742%989%23 min
Flash flood warnings110%1100%106 min

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Green Bay, WI: tornado warnings26485%1060%23 min
NWS Green Bay, WI: severe thunderstorm warnings1496258%18680%25 min
NWS Green Bay, WI: flash flood warnings12833%3174%50 min

An office's figures cover every county it serves, including across state lines.

The year is still running; reports filed late and damage surveys can still change these figures.

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.

IssuedProductOfficeLasted
Jan 4, 3:34 AM CSTWinter Weather AdvisoryGRB21 hr
Jan 5, 3:17 AM CSTWinter Weather AdvisoryGRB43 hr
Jan 8, 2:01 AM CSTDense Fog AdvisoryGRB10 hr
Jan 10, 2:30 AM CSTWinter Weather AdvisoryGRB20 hr
Jan 16, 1:38 AM CSTWinter Weather AdvisoryGRB34 hr
Jan 17, 2:00 PM CSTCold Weather AdvisoryGRB68 hr
Jan 18, 2:05 AM CSTWinter Weather AdvisoryGRB34 hr
Jan 20, 1:36 PM CSTExtreme Cold WatchGRB48 hr
Jan 21, 1:31 PM CSTExtreme Cold WarningGRB67 hr
Jan 24, 1:18 PM CSTCold Weather AdvisoryGRB23 hr
Jan 25, 2:33 AM CSTCold Weather AdvisoryGRB33 hr
Mar 5, 9:39 PM CSTDense Fog AdvisoryGRB29 hr
Mar 10, 2:13 AM CDTWinter Weather AdvisoryGRB35 hr
Mar 12, 1:39 AM CDTWind AdvisoryGRB40 hr
Mar 12, 2:38 PM CDTWinter Storm WatchGRB22 hr
Mar 13, 12:59 PM CDTWinter Storm WarningGRB49 hr
Mar 14, 1:13 PM CDTBlizzard WarningGRB56 hr
Mar 14, 11:55 PM CDTMesoscale DiscussionSPC5 hr
Mar 16, 4:25 AM CDTMesoscale DiscussionSPC5 hr
Mar 16, 11:37 AM CDTWinter Weather AdvisoryGRB9 hr
Mar 30, 11:05 PM CDTSevere Thunderstorm WarningGRB25 min
Mar 30, 11:26 PM CDTSevere Thunderstorm WarningGRB49 min
Mar 31, 9:15 AM CDTSpecial Weather StatementGRB45 min
Mar 31, 10:57 AM CDTSpecial Weather StatementGRB63 min
Mar 31, 11:54 AM CDTSpecial Weather StatementGRB66 min
Apr 1, 3:16 AM CDTWinter Weather AdvisoryGRB31 hr
Apr 2, 7:27 AM CDTMesoscale DiscussionSPC3 hr
Apr 2, 7:30 PM CDTSpecial Weather StatementGRB60 min
Apr 2, 8:10 PM CDTSpecial Weather StatementGRB50 min
Apr 12, 5:24 PM CDTSpecial Weather StatementGRB36 min
Apr 12, 5:59 PM CDTSpecial Weather StatementGRB46 min
Apr 13, 2:04 AM CDTFlood WatchGRB49 hr
Apr 13, 8:22 PM CDTSevere Thunderstorm WarningGRB42 min
Apr 13, 9:42 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 13, 10:21 PM CDTAreal Flood AdvisoryGRB6 hr
Apr 13, 10:54 PM CDTFlash Flood WarningGRB5 hr
Apr 13, 11:27 PM CDTSpecial Weather StatementGRB33 min
Apr 14, 3:52 AM CDTAreal Flood AdvisoryGRB6 hr
Apr 14, 9:08 AM CDTRiver Flood WarningGRB21 days
Apr 14, 9:48 AM CDTAreal Flood WarningGRB9 hr
Apr 14, 2:33 PM CDTTornado WatchSPC9 hr
Apr 14, 6:53 PM CDTAreal Flood WarningGRB9 hr
Apr 15, 2:34 AM CDTAreal Flood WarningGRB11 hr
Apr 15, 2:58 AM CDTDense Fog AdvisoryGRB7 hr
Apr 15, 7:29 AM CDTRiver Flood WarningGRB29 hr
Apr 15, 2:19 PM CDTDense Fog AdvisoryGRB20 hr
Apr 15, 2:30 PM CDTFlood WatchGRB8 hr
Apr 16, 1:33 PM CDTFlood WatchGRB37 hr
Apr 16, 8:36 PM CDTDense Fog AdvisoryGRB12 hr
Apr 17, 8:53 PM CDTSpecial Weather StatementGRB22 min
Apr 30, 1:31 PM CDTFrost AdvisoryGRB18 hr
May 1, 7:56 AM CDTFreeze WarningGRB24 hr
May 5, 1:42 PM CDTFrost AdvisoryGRB18 hr
May 6, 1:23 PM CDTFrost AdvisoryGRB19 hr
May 7, 12:47 PM CDTFrost AdvisoryGRB19 hr
May 10, 12:02 PM CDTFreeze WarningGRB20 hr
May 12, 4:36 PM CDTMesoscale DiscussionSPC114 min
May 17, 1:55 PM CDTSpecial Weather StatementGRB50 min
May 17, 3:25 PM CDTSevere Thunderstorm WarningGRB50 min
May 21, 1:05 PM CDTBeach Hazards StatementGRB33 hr
May 25, 3:22 AM CDTBeach Hazards StatementGRB25 hr
May 27, 1:00 AM CDTBeach Hazards StatementGRB26 hr
Jun 3, 1:45 AM CDTBeach Hazards StatementGRB46 hr
Jun 5, 9:07 PM CDTSpecial Weather StatementGRB38 min
Jun 5, 9:18 PM CDTMesoscale DiscussionSPC87 min
Jun 5, 9:27 PM CDTSevere Thunderstorm WarningGRB33 min
Jun 9, 3:06 AM CDTDense Fog AdvisoryGRB7 hr
Jun 9, 10:31 PM CDTDense Fog AdvisoryGRB11 hr
Jun 10, 9:46 AM CDTBeach Hazards StatementGRB13 hr
Jun 10, 12:00 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 10, 3:25 PM CDTSevere Thunderstorm Warning Destructive damage threatGRB50 min
Jun 10, 3:58 PM CDTMesoscale DiscussionSPC2 hr
Jun 10, 4:14 PM CDTSpecial Weather StatementGRB46 min
Jun 11, 2:55 AM CDTBeach Hazards StatementGRB23 hr
Jun 11, 6:35 PM CDTSpecial Weather StatementGRB25 min
Jun 11, 6:56 PM CDTSpecial Weather StatementGRB64 min
Jun 11, 9:08 PM CDTSpecial Weather StatementGRB67 min
Jun 16, 3:43 PM CDTBeach Hazards StatementGRB36 hr
Jun 24, 1:55 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 24, 5:28 PM CDTMesoscale DiscussionSPC92 min
Jun 24, 7:02 PM CDTSpecial Weather StatementGRB58 min
Jun 28, 8:28 AM CDTBeach Hazards StatementGRB63 hr
Jun 28, 11:54 AM CDTExtreme Heat WarningGRB55 hr
Jun 30, 8:38 AM CDTSevere Thunderstorm WatchSPC3 hr
Jun 30, 10:34 AM CDTMesoscale DiscussionSPC116 min
Jul 1, 12:35 AM CDTHeat AdvisoryGRB19 hr
Jul 1, 6:59 AM CDTMesoscale DiscussionSPC3 hr
Jul 1, 7:56 AM CDTSevere Thunderstorm WarningGRB64 min
Jul 1, 9:03 AM CDTSpecial Weather StatementGRB57 min
Jul 1, 11:05 AM CDTSevere Thunderstorm WatchSPC3 hr
Jul 1, 11:23 AM CDTFlood WatchGRB19 hr
Jul 1, 7:26 PM CDTSpecial Weather StatementGRB19 min
Jul 1, 11:27 PM CDTSevere Thunderstorm WatchSPC3 hr
Jul 2, 12:03 AM CDTAreal Flood AdvisoryGRB4 hr
Jul 8, 1:59 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 8, 4:20 PM CDTSevere Thunderstorm WarningGRB40 min
Jul 8, 4:39 PM CDTSevere Thunderstorm Warning Considerable damage threatGRB34 min
Jul 8, 5:20 PM CDTAreal Flood AdvisoryGRB106 min
Jul 12, 1:33 PM CDTHeat AdvisoryGRB3 days
Jul 19, 2:10 PM CDTBeach Hazards StatementGRB37 hr
Jul 20, 3:49 PM CDTTornado WatchSPC7 hr
Jul 27, 8:43 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 27, 9:40 AM CDTMesoscale DiscussionSPC3 hr
Jul 27, 11:58 AM CDTSevere Thunderstorm Warning Destructive damage threatGRB62 min
Jul 27, 11:59 AM CDTTornado WarningGRB46 min
Jul 27, 4:57 PM CDTMesoscale DiscussionSPC93 min
Jul 31, 3:23 PM CDTBeach Hazards StatementGRB22 hr
Aug 1, 1:36 PM CDTBeach Hazards StatementGRB29 hr
Aug 3, 1:30 PM CDTBeach Hazards StatementGRB33 hr
Aug 6, 3:09 AM CDTDense Fog AdvisoryGRB6 hr
Aug 14, 2:07 PM CDTBeach Hazards StatementGRB29 hr
Aug 18, 4:52 PM CDTMesoscale DiscussionSPC113 min
Aug 22, 3:26 PM CDTSpecial Weather StatementGRB34 min
Aug 24, 9:29 PM CDTBeach Hazards StatementGRB38 hr
Aug 30, 3:02 AM CDTBeach Hazards StatementGRB14 hr
Sep 2, 5:10 AM CDTSevere Thunderstorm WarningGRB50 min
Sep 2, 5:37 AM CDTMesoscale DiscussionSPC113 min
Sep 3, 7:52 AM CDTMesoscale DiscussionSPC83 min
Sep 4, 1:57 AM CDTSevere Thunderstorm WarningGRB63 min
Sep 4, 7:39 AM CDTAreal Flood AdvisoryGRB2 hr
Sep 7, 1:44 AM CDTBeach Hazards StatementGRB53 hr
Sep 10, 6:53 PM CDTBeach Hazards StatementGRB42 hr
Sep 13, 1:13 PM CDTBeach Hazards StatementGRB54 hr
Sep 14, 10:38 PM CDTAreal Flood AdvisoryGRB3 hr
Sep 18, 1:30 PM CDTBeach Hazards StatementGRB33 hr
Sep 19, 12:32 PM CDTBeach Hazards StatementGRB3 days

By product

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

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe 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. Warning verification from the Mesonet's Cow. Rebuilt daily.