Alert archive / Kansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 21, NWS Wichita, KS

April 9, 1990Harvey County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 9, 1990, 8:16 PM CDT for Harvey County, Kansas. It was in force for 29 min.

The area

The counties it named.

The facts

Issued
Apr 9, 1990, 8:16 PM CDT (01:16 UTC)
Expired
Apr 9, 1990, 8:45 PM CDT
In force
29 min
Issued by
NWS Wichita, KS
Area
Whole counties

County Harvey County, KS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.3 hours before the alert went out and 188 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, Topeka, KS at 00:00Z on 1990-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 58 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, Topeka, KS at 00:00Z on 1990-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939587897Sfc1 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
58 J/kg
Mixed-layer CIN
-198 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
87 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KICT 100116
SVRICT
KSC079-100145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE WICHITA KS
816 PM CDT MON APR 9 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTH CENTRAL PART OF KANSAS
      SOUTHEAST HARVEY

AT 813 PM CDT RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS ALONG THE
HARVEY-SEDGWICK COUNTY LINE...WITH THE STRONGEST STORM NEAR THE
TOWN OF SEDGWICK.

MOVEMENT WAS EAST AT 20 MILES AN HOUR.

STORMS CONTINUE TO DEVELOP ALONG THIS LINE.

 REMEMBER...SEVERE THUNDERSTORMS CAN AND DO OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. BE ON THE
LOOKOUT.

BURKE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 7:14 PM CDTTornado WarningICTHarvey, Sedgwick31 min
Apr 9, 7:36 PM CDTTornado WarningICTButler69 min
Apr 9, 7:48 PM CDTSevere Thunderstorm WarningICTChase57 min
Apr 9, 8:00 PM CDTSevere Thunderstorm WarningICTHarper60 min
Apr 9, 8:00 PM CDTSevere Thunderstorm WarningICTSedgwick60 min
Apr 9, 8:20 PM CDTTornado WarningICTKingman25 min
Apr 9, 8:46 PM CDTTornado WarningICTKingman29 min
Apr 9, 8:50 PM CDTSevere Thunderstorm WarningICTButler55 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1990Every severe thunderstorm warning in 1990

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.