Alert archive / Wisconsin

Weather alerts in Burnett County, Wisconsin

2,697 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Burnett County and its neighbors

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

Alerts
2,697
Warnings
644
Watches
410
Advisories
645
Busiest year
2012152 alerts
Average year
67over 40 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, 50% of tornado reports in Burnett County fell inside a tornado warning issued on average 13 minutes before, and 76% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200910100%0
20106433%3100%13 min
20112150%0
201210100%0
201310100%0
201610100%0
201720100%10%
2018020%
202030100%0
202110100%0
202220100%0
202310100%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
200823770%8100%15 min
200911373%1100%12 min
2010191142%9100%27 min
2011231152%2492%27 min
201216194%250%13 min
201318761%5100%18 min
2014141214%683%16 min
20158275%2100%21 min
201615567%0
201712467%1164%17 min
201813469%250%14 min
20199544%771%34 min
20205340%50%
20216267%0
2022221818%1794%26 min
2023191237%2171%24 min
20248538%367%27 min
20258450%850%19 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20102150%0
2011110%0
201230100%0
2016220%0
20172150%0
20185260%0
2019220%2100%52 min
2022110%0
2023110%1100%12 min
202410100%0
2025220%250%198 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
Aug 25, 6:38 PM CDTSevere Thunderstorm WarningDLH67 min
Aug 25, 5:52 PM CDTSevere Thunderstorm WarningDLH53 min
Jul 25, 11:52 AM CDTExtreme Heat WarningDLH33 hr
Jul 11, 1:33 PM CDTExtreme Heat WarningDLH4 days
Jun 28, 12:45 PM CDTExtreme Heat WarningDLH35 hr
Jun 19, 4:40 PM CDTSevere Thunderstorm WarningDLH65 min
Jun 10, 2:40 PM CDTSevere Thunderstorm WarningDLH65 min
Jun 10, 3:45 AM CDTSevere Thunderstorm WarningDLH60 min
Jun 5, 12:56 PM CDTSevere Thunderstorm WarningDLH64 min
May 14, 11:25 AM CDTRed Flag WarningDLH34 hr
Apr 22, 3:08 AM CDTRed Flag WarningDLH17 hr
Apr 17, 2:53 PM CDTSevere Thunderstorm WarningDLH67 min

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.