Alert archive / Kansas

Weather alerts in Greenwood County, Kansas

4,269 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Greenwood County and its neighbors

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

Alerts
4,269
Warnings
1,250
Watches
816
Advisories
774
Busiest year
2019267 alerts
Average year
104over 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, 71% of tornado reports in Greenwood County fell inside a tornado warning issued on average 12 minutes before, and 63% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20085180%3100%16 min
200960100%0
20105260%2100%24 min
20112150%0
20124175%0
2014020%
2016440%5100%5 min
201710100%0
2018110%250%2 min
201930100%20%
20225340%2100%18 min
20244250%367%11 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
2008251444%1850%20 min
2009301647%667%21 min
2010261062%1292%21 min
2011401953%2357%21 min
201218856%1669%16 min
2013221436%1182%30 min
2014381853%1984%27 min
201519953%771%21 min
201621767%922%21 min
2017331942%1694%20 min
201833973%757%10 min
2019412344%1974%19 min
202014564%475%30 min
202114564%50%
2022211052%1681%35 min
2023372241%1894%29 min
2024261254%1080%24 min
2025251156%5100%22 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008330%2100%183 min
2009330%3100%108 min
20102150%3100%137 min
20133233%1100%61 min
20163233%3100%108 min
20197614%7100%147 min
20202150%0
20222150%1100%95 min
202310100%0
20253233%2100%107 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, 2:53 PM CDTSevere Thunderstorm WarningICT37 min
Aug 11, 11:18 AM CDTExtreme Heat WarningICT4 days
Aug 7, 10:24 AM CDTSevere Thunderstorm WarningICT51 min
Aug 7, 9:28 AM CDTSevere Thunderstorm WarningICT62 min
Aug 5, 9:30 PM CDTSevere Thunderstorm WarningICT28 min
Aug 5, 8:47 PM CDTSevere Thunderstorm WarningICT58 min
Jul 25, 2:11 PM CDTExtreme Heat WarningICT54 hr
Jul 25, 1:11 AM CDTExtreme Heat WarningICT19 hr
Jul 10, 10:41 PM CDTSevere Thunderstorm WarningICT19 min
Jul 4, 5:41 PM CDTSevere Thunderstorm WarningICT49 min
Jul 4, 10:00 AM CDTSevere Thunderstorm WarningICT45 min
Jul 4, 9:35 AM CDTSevere Thunderstorm WarningICT40 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.