Alert archive / Kansas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 80, NWS Wichita, KS

May 4, 1991Harper County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at May 4, 1991, 6:34 PM CDT for Harper County, Kansas. It was in force for 56 min.

The area

The counties it named.

The facts

Issued
May 4, 1991, 6:34 PM CDT (23:34 UTC)
Expired
May 4, 1991, 7:30 PM CDT
In force
56 min
Issued by
NWS Wichita, KS
Area
Whole counties

County Harper County, KS

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.6 hours before the alert went out and 227 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-pSkew-T log-p diagram, Norman, OK at 12:00Z on 1991-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 880 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 1991-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
880 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.3

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.

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 8:45 PM CDTSevere Thunderstorm WarningICTAllen60 min
May 3, 9:46 PM CDTSevere Thunderstorm WarningICTBourbon59 min
May 4, 4:28 PM CDTSevere Thunderstorm WarningICTButler, Cowley62 min
May 4, 5:15 PM CDTSevere Thunderstorm WarningICTGreenwood60 min
May 4, 5:25 PM CDTSevere Thunderstorm WarningICTButler35 min
May 4, 5:30 PM CDTSevere Thunderstorm WarningICTCowley60 min
May 4, 5:44 PM CDTSevere Thunderstorm WarningICTChase61 min
May 4, 5:56 PM CDTSevere Thunderstorm WarningICTGreenwood64 min
May 4, 6:16 PM CDTSevere Thunderstorm WarningICTSumner59 min
May 4, 6:16 PM CDTSevere Thunderstorm WarningICTElk59 min
May 4, 6:34 PM CDTSevere Thunderstorm WarningICTReno, Sedgwick56 min
May 4, 6:40 PM CDTSevere Thunderstorm WarningICTMontgomery65 min
May 4, 6:51 PM CDTSevere Thunderstorm WarningICTWoodson69 min
May 4, 6:51 PM CDTSevere Thunderstorm WarningICTHarvey69 min
May 4, 6:59 PM CDTSevere Thunderstorm WarningICTAllen, Neosho61 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1991Every severe thunderstorm warning in 1991

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.