Alert archive / Kansas / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 477, NWS Kansas City, MO

August 21, 2026Jackson County, Platte County, Missouri; Johnson County, Leavenworth County, Wyandotte County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Aug 21, 2026, 5:06 PM CDT for Jackson County, Platte County, Missouri; Johnson County, Leavenworth County, Wyandotte County, Kansas. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 21, 2026, 5:06 PM CDT (22:06 UTC)
Expired
Aug 21, 2026, 5:45 PM CDT
In force
39 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Johnson County, KS, Leavenworth County, KS, Wyandotte County, KS, Jackson County, MO, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 54 km from the middle of the area, began a volume at 22:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 21, 4:50 PM CDTSevere Thunderstorm WarningEAXPlatte40 min
Aug 21, 5:43 PM CDTSevere Thunderstorm WarningEAXCass, Jackson32 min
Aug 21, 6:06 PM CDTSevere Thunderstorm WarningEAXBates, Cass24 min
Aug 21, 6:25 PM CDTSevere Thunderstorm WarningEAXBates, Cass, Henry50 min
Aug 21, 3:50 PM CDTSpecial Weather StatementEAXAtchison25 min
Aug 21, 4:11 PM CDTSpecial Weather StatementEAXAtchison34 min
Aug 21, 4:40 PM CDTSpecial Weather StatementEAXAtchison, Leavenworth35 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2026Severe Thunderstorm Warnings in Missouri, 2026Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.