Alert archive / Wisconsin

Weather alerts in Kewaunee County, Wisconsin

1,933 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Kewaunee County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
1,933
Warnings
332
Watches
282
Advisories
666
Busiest year
2019149 alerts
Average year
47over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 0% of tornado reports in Kewaunee County fell inside a tornado warning, and 67% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201010100%0
2013010%
2016010%
2017110%0
201910100%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008330%6100%35 min
20108538%1100%8 min
20119722%786%11 min
201240100%0
20135260%10%
201410100%0
20156350%0
2016330%333%33 min
201711645%3100%22 min
2018110%2100%22 min
201911827%6100%33 min
20206517%0
202111918%6100%15 min
20226517%2100%15 min
2023110%10%
20246433%3100%19 min
20258450%5100%23 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201510100%0
2019110%0

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Sep 2, 5:10 AM CDTSevere Thunderstorm WarningGRB50 min
Jul 27, 11:21 AM CDTSevere Thunderstorm WarningGRB39 min
Jul 27, 9:39 AM CDTSevere Thunderstorm Warning Considerable damage threatGRB38 min
Jul 8, 4:39 PM CDTSevere Thunderstorm Warning Considerable damage threatGRB34 min
Jul 8, 4:20 PM CDTSevere Thunderstorm WarningGRB40 min
Jul 1, 8:33 AM CDTSevere Thunderstorm WarningGRB57 min
Jul 1, 7:56 AM CDTSevere Thunderstorm WarningGRB64 min
Jun 30, 6:24 PM CDTSevere Thunderstorm WarningGRB42 min
Jun 28, 11:54 AM CDTExtreme Heat WarningGRB55 hr
Jun 16, 2:17 PM CDTSevere Thunderstorm WarningGRB26 min
Jun 10, 3:25 PM CDTSevere Thunderstorm Warning Destructive damage threatGRB50 min
May 10, 12:02 PM CDTFreeze WarningGRB20 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.