Alert archive / Kansas / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 162, NWS Topeka, KS

July 21, 2025Ottawa County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 21, 2025, 7:01 PM CDT for Ottawa County, Kansas. It was in force for 17 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: Jul 21, 2025, 7:01 PM CDT (00:01 UTC)
Expired: Jul 21, 2025, 7:18 PM CDT
In force: 17 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Ottawa County, KS

The radar

The Topeka radar (KTWX), 123 km from the middle of the area, began a volume at 00:03 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 nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.0 hours before the alert went out and 174 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 100 J/kg
Mixed-layer CIN: -287 J/kg
Mixed-layer LCL: 1798 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 6:39 PM CDT, 22 minutes earlier.

Area forecast discussion, Jul 21, 6:39 PM CDT, 22 minutes before

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Hazardous weather outlook, Jul 21, 2:38 PM CDT, 4 hours 23 minutes before

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In the hours before

Special weather statement, Jul 21, 2:38 PM CDT, 4 hours 23 minutes before

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Special weather statement, Jul 21, 3:02 PM CDT, 3 hours 59 minutes before

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Special weather statement, Jul 21, 4:15 PM CDT, 2 hours 46 minutes before

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Special weather statement, Jul 21, 4:45 PM CDT, 2 hours 16 minutes before

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Special weather statement, Jul 21, 6:26 PM CDT, 35 minutes before

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Local storm report, Jul 21, 6:49 PM CDT, 12 minutes before

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The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 7:38 PM CDT	Areal Flood Warning	TOP	Ottawa	5 hr
Jul 21, 11:10 PM CDT	Special Weather Statement	TOP	Dickinson	35 min
Jul 21, 11:23 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Morris	33 min
Jul 21, 11:43 PM CDT	Special Weather Statement	TOP	Dickinson	32 min
Jul 22, 12:03 AM CDT	Special Weather Statement	TOP	Lyon	27 min
Jul 22, 10:40 AM CDT	Areal Flood Advisory	TOP	Ottawa	3 hr

Nearby

Severe Thunderstorm Warnings in Kansas, 2025 Every severe thunderstorm warning in 2025

Sources

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