Alert archive / Kansas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 111, NWS Wichita, KS

May 31, 1999Chautauqua County, Cowley County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at May 31, 1999, 3:54 AM CDT for Chautauqua County, Cowley County, Kansas. It was in force for 66 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: May 31, 1999, 3:54 AM CDT (08:54 UTC)
Expired: May 31, 1999, 5:00 AM CDT
In force: 66 min
Issued by: NWS Wichita, KS
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Chautauqua County, KS, Cowley County, KS

The radar

The Wichita radar (KICT), 95 km from the middle of the area, began a volume at 08:55 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, 8.9 hours before the alert went out and 216 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: 978 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1428 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

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 May 31, 2:20 AM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, May 31, 2:20 AM CDT, 1 hour 34 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
May 30, 7:44 PM CDT	Severe Thunderstorm Warning	ICT	Saline	61 min
May 31, 1:19 AM CDT	Severe Thunderstorm Warning	ICT	McPherson, Saline	56 min
May 31, 1:48 AM CDT	Severe Thunderstorm Warning	ICT	Harper	42 min
May 31, 2:07 AM CDT	Severe Thunderstorm Warning	ICT	Kingman	23 min
May 31, 3:22 AM CDT	Severe Thunderstorm Warning	ICT	Butler, Cowley	38 min
May 31, 4:34 AM CDT	Severe Thunderstorm Warning	ICT	Harper	56 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.