Alert archive / Wisconsin

Weather alerts in Waushara County, Wisconsin

2,423 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Waushara County and its neighbors

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

Alerts
2,423
Warnings
496
Watches
391
Advisories
663
Busiest year
2021135 alerts
Average year
59over 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, 57% of tornado reports in Waushara County fell inside a tornado warning issued on average 21 minutes before, and 46% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201010100%0
2011440%3100%17 min
201320100%0
201810100%20%
2019010%
2022220%1100%30 min
202410100%0
20252150%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20084325%3100%17 min
200910100%0
20106267%20%
2011171041%1580%35 min
20127357%0
2013330%367%17 min
20148363%0
20157529%4100%43 min
201613562%9100%36 min
201714750%1070%24 min
201810910%4100%19 min
20197529%683%20 min
202013654%683%41 min
202115753%875%22 min
2022660%2095%28 min
20233233%250%9 min
20247529%333%27 min
202511736%978%19 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008110%0
2010110%0
20142150%0
201710100%0
20192150%0
2022010%
2024110%1100%22 min
20252150%3100%15 min

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 4, 1:33 AM CDTSevere Thunderstorm WarningGRB57 min
Sep 4, 1:06 AM CDTSevere Thunderstorm Warning Considerable damage threatGRB39 min
Aug 21, 7:03 PM CDTSevere Thunderstorm WarningGRB29 min
Aug 18, 4:11 PM CDTTornado WarningGRB30 min
Aug 18, 3:55 PM CDTSevere Thunderstorm WarningGRB49 min
Jul 8, 3:11 PM CDTSevere Thunderstorm WarningGRB49 min
Jul 1, 11:37 PM CDTSevere Thunderstorm WarningGRB26 min
Jul 1, 11:26 PM CDTFlash Flood WarningGRB3 hr
Jul 1, 10:58 PM CDTSevere Thunderstorm WarningGRB47 min
Jul 1, 6:43 AM CDTSevere Thunderstorm WarningGRB47 min
Jul 1, 6:05 AM CDTSevere Thunderstorm WarningGRB55 min
Jun 28, 11:54 AM CDTExtreme Heat WarningGRB55 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.