Alert archive / Kansas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 8, NWS Wichita, KS

April 3, 1999Cowley County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 3, 1999, 2:34 AM CST for Cowley County, Kansas. It was in force for 56 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 3, 1999, 2:34 AM CST (08:34 UTC)
Expired: Apr 3, 1999, 3:30 AM CST
In force: 56 min
Issued by: NWS Wichita, KS
Area: Whole counties

County Cowley County, KS

The radar

The Wichita radar (KICT), 71 km from the middle of the area, began a volume at 08:33 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.

What was reported inside it

Time	Report	Where	Remark
Apr 3, 2:38 AM CST	Thunderstorm Wind 51	Winfield, KS
Apr 3, 2:40 AM CST	Thunderstorm Wind 52	Winfield, KS	Rubbermaid plant lost 100 feet of roofing.
Apr 3, 2:45 AM CST	Thunderstorm Wind 52	Winfield, KS	In southeast Winfield, one barn was blown off it's foundation, slamming into the west wall of a home. One couple sustained minor injuries due to broken glass. Three other barns also sustained damage. A second house, 9 miles southeast of Winfield, sustained dam
Apr 3, 2:55 AM CST	Thunderstorm Wind 61	Dexter, KS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 8.6 hours before the alert went out and 222 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: 823 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1392 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 2, 9:30 PM CST, 5 hours 4 minutes earlier.

Area forecast discussion, Apr 2, 9:30 PM CST, 5 hours 4 minutes before

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In the hours before

Special weather statement, Apr 2, 9:02 PM CST, 5 hours 32 minutes before

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Special weather statement, Apr 2, 9:02 PM CST, 5 hours 32 minutes before

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Special weather statement, Apr 2, 9:05 PM CST, 5 hours 29 minutes before

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Special weather statement, Apr 2, 9:05 PM CST, 5 hours 29 minutes before

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Local storm report, Apr 2, 9:07 PM CST, 5 hours 27 minutes before

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Local storm report, Apr 2, 9:07 PM CST, 5 hours 27 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 1:45 AM CST	Severe Thunderstorm Warning	ICT	Harper	45 min
Apr 3, 1:50 AM CST	Severe Thunderstorm Warning	ICT	Sumner	55 min
Apr 3, 3:38 AM CST	Severe Thunderstorm Warning	ICT	Montgomery, Wilson	52 min
Apr 3, 4:38 AM CST	Severe Thunderstorm Warning	ICT	Allen, Neosho	52 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1999 Every severe thunderstorm warning in 1999

Sources

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