Alert archive / Kansas / Shawnee County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Shawnee County, Kansas, 2008

23 severe thunderstorm warnings in 2008. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Shawnee County and its neighbors

Each county as a circle sized by its count in 2008. Tap one for its archive.

Severe Thunderstorm Warnings
23
Busiest month
June15 severe thunderstorm warnings
Busiest day
June 12, 20084 severe thunderstorm warnings

Over time

By month

Warning verification

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

16 of 23 severe thunderstorm warnings covering Shawnee County in 2008 had a qualifying storm report inside them; 28 of 31 hail, wind and damage reports fell inside a warning, on average 28 minutes after it went out.

Shawnee County, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Severe thunderstorm warnings231630%3190%28 min

Each office's whole area, 2008

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Topeka, KS: severe thunderstorm warnings25616237%45787%21 min

An office's figures cover every county it serves, including across state lines.

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.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Apr 10, 6:27 PM CDTSevere Thunderstorm WarningTOP33 min
Apr 10, 7:08 PM CDTSevere Thunderstorm WarningTOP37 min
Apr 23, 2:50 PM CDTSevere Thunderstorm WarningTOP26 min
May 2, 12:33 AM CDTSevere Thunderstorm WarningTOP43 min
May 24, 3:07 AM CDTSevere Thunderstorm WarningTOP53 min
May 24, 3:49 AM CDTSevere Thunderstorm WarningTOP41 min
Jun 2, 10:40 AM CDTSevere Thunderstorm WarningTOP50 min
Jun 2, 11:14 AM CDTSevere Thunderstorm WarningTOP31 min
Jun 2, 11:28 AM CDTSevere Thunderstorm WarningTOP62 min
Jun 5, 8:17 PM CDTSevere Thunderstorm WarningTOP43 min
Jun 5, 8:52 PM CDTSevere Thunderstorm WarningTOP38 min
Jun 8, 4:33 PM CDTSevere Thunderstorm WarningTOP42 min
Jun 11, 11:38 PM CDTSevere Thunderstorm WarningTOP52 min
Jun 12, 12:41 AM CDTSevere Thunderstorm WarningTOP49 min
Jun 12, 5:35 PM CDTSevere Thunderstorm WarningTOP55 min
Jun 12, 6:27 PM CDTSevere Thunderstorm WarningTOP63 min
Jun 12, 7:21 PM CDTSevere Thunderstorm WarningTOP39 min
Jun 15, 11:54 AM CDTSevere Thunderstorm WarningTOP51 min
Jun 19, 3:18 PM CDTSevere Thunderstorm WarningTOP42 min
Jun 19, 3:31 PM CDTSevere Thunderstorm WarningTOP44 min
Jun 19, 3:59 PM CDTSevere Thunderstorm WarningTOP30 min
Jul 2, 6:47 PM CDTSevere Thunderstorm WarningTOP42 min
Sep 8, 4:50 AM CDTSevere Thunderstorm WarningTOP30 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 12, 20084severe thunderstorm warnings
  2. June 2, 20083severe thunderstorm warnings
  3. June 19, 20083severe thunderstorm warnings
  4. May 24, 20082severe thunderstorm warnings
  5. June 6, 20082severe thunderstorm warnings
  6. April 10, 20081severe thunderstorm warnings
  7. April 11, 20081severe thunderstorm warnings
  8. April 23, 20081severe thunderstorm warnings
  9. May 2, 20081severe thunderstorm warnings
  10. June 8, 20081severe thunderstorm warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20072009

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.