Alert archive / Kansas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 172, NWS Topeka, KS

August 10, 2006Lyon County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Aug 10, 2006, 4:41 PM CDT for Lyon County, Kansas. It was in force for 49 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 10, 2006, 4:41 PM CDT (21:41 UTC)
Expired: Aug 10, 2006, 5:30 PM CDT
In force: 49 min
Issued by: NWS Topeka, KS
Area: Counties, with a storm outline in the text

County Lyon County, KS

The radar

The Topeka radar (KTWX), 61 km from the middle of the area, began a volume at 21:43 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

Lamont, OK (KLMN), launched 12:00Z, 9.7 hours before the alert went out and 235 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: 252 J/kg
Mixed-layer CIN: -261 J/kg
Mixed-layer LCL: 2454 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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 Aug 10, 3:22 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Aug 10, 3:22 PM CDT, 1 hour 19 minutes before

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Hazardous weather outlook, Aug 10, 4:20 PM CDT, 21 minutes before

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In the hours before

Special weather statement, Aug 10, 2:45 PM CDT, 1 hour 56 minutes before

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Local storm report, Aug 10, 2:51 PM CDT, 1 hour 50 minutes before

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Special weather statement, Aug 10, 3:27 PM CDT, 1 hour 14 minutes before

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Special weather statement, Aug 10, 3:40 PM CDT, 1 hour 1 minute before

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Special weather statement, Aug 10, 4:04 PM CDT, 37 minutes before

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Special weather statement, Aug 10, 4:30 PM CDT, 11 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
Aug 10, 4:40 AM CDT	Heat Advisory	TOP	Anderson, Coffey, Dickinson, Douglas, Franklin, Lyon and 2 more	6 hr
Aug 10, 1:55 PM CDT	Severe Thunderstorm Warning	TOP	Pottawatomie, Riley, Wabaunsee	35 min
Aug 10, 2:27 PM CDT	Severe Thunderstorm Warning	TOP	Wabaunsee	48 min
Aug 10, 2:52 PM CDT	Severe Thunderstorm Warning	TOP	Morris	38 min
Aug 10, 2:55 PM CDT	Severe Thunderstorm Warning	TOP	Wabaunsee	21 min
Aug 10, 2:59 PM CDT	Severe Thunderstorm Warning	TOP	Shawnee	46 min
Aug 10, 5:29 PM CDT	Severe Thunderstorm Warning	TOP	Coffey	31 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2006 Every severe thunderstorm warning in 2006

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.