Alert archive / Kansas / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 29, NWS Topeka, KS

April 11, 2026Republic County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 11, 2026, 4:02 PM CDT for Republic County, Kansas. It was in force for 28 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: Apr 11, 2026, 4:02 PM CDT (21:02 UTC)
Expired: Apr 11, 2026, 4:30 PM CDT
In force: 28 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Republic County, KS

The radar

The Grand Island radar (KUEX), 87 km from the middle of the area, began a volume at 21:06 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 12:00Z, 9.0 hours before the alert went out and 196 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 678 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 314 m²/s²
0-3 km storm-relative helicity: 339 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Apr 11, 2:16 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, Apr 11, 2:16 PM CDT, 1 hour 46 minutes before

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Hazardous weather outlook, Apr 11, 2:21 PM CDT, 1 hour 41 minutes before

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In the hours before

Local storm report, Apr 11, 10:52 AM CDT, 5 hours 10 minutes before

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Local storm report, Apr 11, 11:43 AM CDT, 4 hours 19 minutes before

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Local storm report, Apr 11, 2:31 PM CDT, 1 hour 31 minutes before

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Special weather statement, Apr 11, 4:00 PM CDT, 2 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
Apr 11, 3:02 AM CDT	Areal Flood Advisory	TOP	Clay, Marshall, Republic, Riley, Washington	92 min
Apr 11, 4:34 AM CDT	Areal Flood Warning	TOP	Clay, Marshall, Republic, Riley, Washington	10 hr
Apr 11, 5:27 AM CDT	Areal Flood Warning	TOP	Marshall, Republic, Washington	10 hr
Apr 11, 7:15 AM CDT	Flash Flood Warning	TOP	Marshall, Nemaha	5 hr
Apr 11, 7:32 AM CDT	River Flood Warning	TOP	Marshall, Washington	49 hr
Apr 11, 7:32 AM CDT	River Flood Warning	TOP	Washington	44 hr
Apr 11, 7:32 AM CDT	River Flood Warning	TOP	Marshall	60 hr
Apr 11, 7:32 AM CDT	River Flood Warning	TOP	Marshall	42 hr
Apr 11, 12:15 PM CDT	Areal Flood Warning	TOP	Marshall, Nemaha	3 hr
Apr 11, 3:34 PM CDT	Severe Thunderstorm Warning	TOP	Republic	26 min
Apr 11, 4:00 PM CDT	Special Weather Statement	TOP	Republic	45 min
Apr 11, 4:48 PM CDT	Severe Thunderstorm Warning	TOP	Republic	27 min
Apr 11, 5:12 PM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	33 min
Apr 11, 5:31 PM CDT	Special Weather Statement	TOP	Brown	29 min
Apr 11, 5:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TOP	Republic, Washington	32 min
Apr 11, 6:16 PM CDT	Areal Flood Warning	TOP	Republic, Washington	2 hr
Apr 11, 6:36 PM CDT	Special Weather Statement	TOP	Nemaha	24 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2026 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.