Alert archive / Wisconsin / Ozaukee County

Weather alerts in Ozaukee County, Wisconsin, 2026

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

Ozaukee County and its neighbors

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

Alerts
125
Warnings
30
Watches
21
Advisories
29
Busiest month
July27 alerts
Busiest day
April 14, 20269 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 Ozaukee County in 2026 had a tornado report inside them.

Ozaukee County, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings181044%1100%26 min
Flash flood warnings4250%1100%16 min

Each office's whole area, 2026

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Milwaukee, WI: tornado warnings861681%3672%15 min
NWS Milwaukee, WI: severe thunderstorm warnings27412056%42388%29 min
NWS Milwaukee, WI: flash flood warnings22864%2458%40 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 10, 8:26 AM CSTWinter Weather AdvisoryMKX5 hr
Jan 14, 6:58 AM CSTWinter Weather AdvisoryMKX3 hr
Jan 16, 8:09 PM CSTWinter Weather AdvisoryMKX13 hr
Jan 17, 10:33 AM CSTWinter Weather AdvisoryMKX10 hr
Jan 18, 1:56 AM CSTCold Weather AdvisoryMKX34 hr
Jan 18, 10:15 AM CSTWinter Weather AdvisoryMKX26 hr
Jan 20, 12:40 PM CSTExtreme Cold WatchMKX25 hr
Jan 21, 1:25 PM CSTExtreme Cold WarningMKX65 hr
Jan 21, 1:27 PM CSTExtreme Cold WatchMKX21 hr
Jan 22, 10:14 AM CSTCold Weather AdvisoryMKX50 hr
Jan 25, 2:29 AM CSTCold Weather AdvisoryMKX33 hr
Feb 28, 12:59 PM CSTWinter Weather AdvisoryMKX7 hr
Mar 5, 1:15 AM CSTDense Fog AdvisoryMKX32 hr
Mar 11, 9:13 PM CDTWind AdvisoryMKX16 hr
Mar 12, 12:57 PM CDTHigh Wind WarningMKX27 hr
Mar 12, 2:24 PM CDTWinter Storm WatchMKX57 hr
Mar 13, 2:04 PM CDTWinter Weather AdvisoryMKX49 hr
Mar 13, 3:38 PM CDTWind AdvisoryMKX3 hr
Mar 14, 11:04 PM CDTWinter Storm WarningMKX20 hr
Mar 14, 11:04 PM CDTWinter Weather AdvisoryMKX20 hr
Mar 15, 7:21 PM CDTBlizzard WarningMKX20 hr
Mar 16, 11:06 AM CDTWinter Weather AdvisoryMKX10 hr
Apr 1, 1:03 PM CDTWinter Weather AdvisoryMKX20 hr
Apr 2, 1:43 PM CDTTornado WatchSPC8 hr
Apr 2, 7:45 PM CDTSevere Thunderstorm WarningMKX30 min
Apr 13, 10:34 AM CDTFlood WatchMKX20 hr
Apr 13, 3:11 PM CDTTornado WatchSPC7 hr
Apr 13, 9:15 PM CDTMesoscale DiscussionSPC60 min
Apr 13, 9:42 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 13, 11:43 PM CDTMesoscale DiscussionSPC92 min
Apr 14, 1:10 AM CDTSevere Thunderstorm Warning Considerable damage threatMKX65 min
Apr 14, 1:38 AM CDTTornado WarningMKX22 min
Apr 14, 1:50 AM CDTMesoscale DiscussionSPC85 min
Apr 14, 1:59 AM CDTSpecial Weather StatementMKX31 min
Apr 14, 2:33 PM CDTTornado WatchSPC9 hr
Apr 14, 6:40 PM CDTSevere Thunderstorm Warning Considerable damage threatMKX50 min
Apr 14, 7:10 PM CDTFlash Flood WarningMKX3 hr
Apr 14, 10:02 PM CDTAreal Flood AdvisoryMKX3 hr
Apr 15, 11:17 AM CDTFlood WatchMKX24 hr
Apr 15, 11:22 AM CDTRiver Flood WarningMKX5 days
Apr 15, 8:03 PM CDTFlash Flood WarningMKX3 hr
Apr 16, 3:11 PM CDTFlood WatchMKX33 hr
Apr 16, 6:23 PM CDTDense Fog AdvisoryMKX15 hr
Apr 17, 12:40 PM CDTTornado WatchSPC9 hr
Apr 17, 6:33 PM CDTSpecial Weather StatementMKX57 min
Apr 17, 6:39 PM CDTSevere Thunderstorm WarningMKX51 min
Apr 17, 7:25 PM CDTSevere Thunderstorm WarningMKX50 min
May 1, 1:42 AM CDTFreeze WarningMKX30 hr
May 5, 1:13 PM CDTFrost AdvisoryMKX19 hr
May 6, 1:20 PM CDTFrost AdvisoryMKX19 hr
May 7, 12:48 PM CDTFrost AdvisoryMKX19 hr
May 10, 11:59 AM CDTFrost AdvisoryMKX20 hr
May 12, 3:45 PM CDTWind AdvisoryMKX4 hr
May 12, 7:17 PM CDTSpecial Weather StatementMKX28 min
May 21, 12:31 PM CDTBeach Hazards StatementMKX39 hr
May 26, 8:58 PM CDTBeach Hazards StatementMKX40 hr
May 29, 1:01 PM CDTBeach Hazards StatementMKX32 hr
Jun 5, 9:18 PM CDTMesoscale DiscussionSPC87 min
Jun 5, 9:35 PM CDTSpecial Weather StatementMKX40 min
Jun 7, 1:22 PM CDTBeach Hazards StatementMKX30 hr
Jun 9, 11:20 AM CDTBeach Hazards StatementMKX33 hr
Jun 10, 1:07 AM CDTDense Fog AdvisoryMKX6 hr
Jun 10, 12:00 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 10, 2:40 PM CDTSevere Thunderstorm Warning Considerable damage threatMKX80 min
Jun 10, 2:56 PM CDTSevere Thunderstorm WarningMKX64 min
Jun 10, 3:58 PM CDTMesoscale DiscussionSPC2 hr
Jun 11, 11:02 AM CDTFlood WatchMKX9 hr
Jun 11, 12:43 PM CDTSpecial Weather StatementMKX32 min
Jun 16, 1:26 PM CDTSevere Thunderstorm WarningMKX16 min
Jun 16, 2:13 PM CDTSpecial Weather StatementMKX32 min
Jun 16, 4:51 PM CDTBeach Hazards StatementMKX35 hr
Jun 24, 12:44 PM CDTMesoscale DiscussionSPC3 hr
Jun 24, 1:55 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 24, 5:28 PM CDTMesoscale DiscussionSPC92 min
Jun 24, 7:47 PM CDTSevere Thunderstorm WarningMKX43 min
Jun 24, 8:29 PM CDTSevere Thunderstorm WarningMKX20 min
Jun 28, 7:47 AM CDTRip Current StatementMKX37 min
Jun 28, 8:24 AM CDTBeach Hazards StatementMKX38 hr
Jun 28, 11:55 AM CDTExtreme Heat WarningMKX4 days
Jul 1, 6:59 AM CDTMesoscale DiscussionSPC3 hr
Jul 1, 10:11 AM CDTMesoscale DiscussionSPC94 min
Jul 1, 2:34 PM CDTMesoscale DiscussionSPC116 min
Jul 1, 11:27 PM CDTSevere Thunderstorm WatchSPC3 hr
Jul 2, 2:30 PM CDTMesoscale DiscussionSPC90 min
Jul 2, 3:19 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 2, 5:10 PM CDTMesoscale DiscussionSPC2 hr
Jul 2, 7:04 PM CDTSpecial Weather StatementMKX26 min
Jul 2, 7:10 PM CDTSevere Thunderstorm WarningMKX24 min
Jul 8, 1:59 PM CDTSevere Thunderstorm WatchSPC8 hr
Jul 8, 5:53 PM CDTSpecial Weather StatementMKX52 min
Jul 8, 9:46 PM CDTAreal Flood AdvisoryMKX3 hr
Jul 8, 9:52 PM CDTSpecial Weather StatementMKX53 min
Jul 8, 10:24 PM CDTFlash Flood WarningMKX3 hr
Jul 9, 12:34 PM CDTSpecial Weather StatementMKX71 min
Jul 13, 11:45 AM CDTHeat AdvisoryMKX56 hr
Jul 18, 2:04 AM CDTBeach Hazards StatementMKX29 hr
Jul 19, 4:20 PM CDTBeach Hazards StatementMKX35 hr
Jul 21, 3:47 AM CDTBeach Hazards StatementMKX33 hr
Jul 26, 10:16 PM CDTBeach Hazards StatementMKX54 hr
Jul 27, 1:59 AM CDTHeat AdvisoryMKX12 hr
Jul 27, 9:40 AM CDTMesoscale DiscussionSPC3 hr
Jul 27, 10:57 AM CDTSevere Thunderstorm WarningMKX78 min
Jul 27, 11:42 AM CDTSevere Thunderstorm WatchSPC7 hr
Jul 27, 12:16 PM CDTMesoscale DiscussionSPC89 min
Jul 27, 1:01 PM CDTSevere Thunderstorm Warning Destructive damage threatMKX89 min
Jul 31, 1:02 AM CDTBeach Hazards StatementMKX72 hr
Aug 9, 9:46 AM CDTSevere Thunderstorm WatchSPC6 hr
Aug 14, 1:32 PM CDTBeach Hazards StatementMKX29 hr
Aug 18, 2:48 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 18, 5:29 PM CDTMesoscale DiscussionSPC2 hr
Aug 18, 6:23 PM CDTSevere Thunderstorm WarningMKX67 min
Sep 3, 7:41 AM CDTSpecial Weather StatementMKX49 min
Sep 3, 7:51 AM CDTSevere Thunderstorm WarningMKX54 min
Sep 3, 7:52 AM CDTMesoscale DiscussionSPC83 min
Sep 3, 9:04 AM CDTAreal Flood AdvisoryMKX3 hr
Sep 3, 9:19 AM CDTFlash Flood WarningMKX2 hr
Sep 3, 11:26 PM CDTMesoscale DiscussionSPC94 min
Sep 4, 12:04 AM CDTSevere Thunderstorm Warning Considerable damage threatMKX56 min
Sep 4, 12:28 AM CDTAreal Flood AdvisoryMKX103 min
Sep 4, 12:54 AM CDTSevere Thunderstorm WarningMKX51 min
Sep 4, 2:08 AM CDTMesoscale DiscussionSPC97 min
Sep 4, 2:37 AM CDTSevere Thunderstorm WarningMKX53 min
Sep 13, 1:42 PM CDTBeach Hazards StatementMKX47 hr
Sep 17, 9:07 PM CDTFlood WatchMKX58 hr
Sep 18, 2:03 PM CDTBeach Hazards StatementMKX6 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.