Alert archive / Kansas

Weather alerts in Chautauqua County, Kansas

3,994 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Chautauqua County and its neighbors

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

Alerts
3,994
Warnings
1,012
Watches
841
Advisories
716
Busiest year
2019246 alerts
Average year
97over 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, 73% of tornado reports in Chautauqua County fell inside a tornado warning issued on average 15 minutes before, and 67% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%0
20094175%0
20102150%0
20115260%2100%11 min
20132150%0
2014220%580%23 min
201610100%0
201710100%0
2018110%1100%4 min
2019010%
202010100%0
202413377%250%4 min
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008271641%1883%34 min
2009221627%1493%29 min
2010191237%1580%29 min
2011261735%2075%27 min
20129456%667%25 min
2013191332%1669%24 min
201414843%1292%22 min
20156433%978%25 min
201610550%1127%11 min
2017201050%1275%25 min
201821957%667%6 min
2019161131%4100%22 min
202010820%3100%15 min
20217443%1100%38 min
20228275%10%
2023251540%967%27 min
2024291162%580%26 min
202530970%5100%23 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2009330%1100%23 min
2010110%2100%296 min
2012110%0
2013110%0
2014110%1100%590 min
201610100%0
201710100%0
201810100%0
20197443%250%72 min
2024110%0
20252150%1100%169 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 9, 6:10 PM CDTSevere Thunderstorm WarningICT35 min
Sep 9, 5:24 PM CDTSevere Thunderstorm WarningICT36 min
Aug 11, 11:18 AM CDTExtreme Heat WarningICT4 days
Jul 25, 2:11 PM CDTExtreme Heat WarningICT54 hr
Jul 25, 1:11 AM CDTExtreme Heat WarningICT19 hr
Jul 20, 12:18 PM CDTExtreme Heat WarningICT31 hr
Jul 4, 6:55 PM CDTSevere Thunderstorm Warning Considerable damage threatICT65 min
Jul 4, 6:30 PM CDTSevere Thunderstorm WarningICT45 min
Jun 26, 10:54 PM CDTAreal Flood WarningICT11 hr
Jun 26, 8:15 PM CDTAreal Flood WarningICT21 hr
Jun 25, 11:14 PM CDTAreal Flood WarningICT17 hr
Jun 21, 5:01 PM CDTTornado WarningICT23 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.