Alert archive / Kansas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Topeka, KS

April 21, 1996Shawnee County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Apr 21, 1996, 11:15 PM CDT for Shawnee County, Kansas. It was in force for 30 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
Apr 21, 1996, 11:15 PM CDT (04:15 UTC)
Expired
Apr 21, 1996, 11:45 PM CDT
In force
30 min
Issued by
NWS Topeka, KS
Area
Whole counties

County Shawnee County, KS

The radar

The Topeka radar (KTWX), 41 km from the middle of the area, began a volume at 04:17 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, 4.3 hours before the alert went out and 11 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 1996-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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 1996-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.1939587897117136Sfc1 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
93 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
1732 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTOP 220415
SVRTOP
KSC177-220445-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1115 PM CDT SUN APR 21 1996
 
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL KANSAS
 
   ...EASTERN SHAWNEE COUNTY
 
AT 1115 PM CDT DOPPLER RADAR INDICATED A DEVELOPING SEVERE THUNDERSTORM
OVER THE CITY OF TxOPEKA. THIS STORM IS MOVING EAST SOUTHEAST AT 20 MPH
AND WILL BE NEAR TECUMSEH BY 1130 PM CDT.
 
LARGE HAIL CAN BE EXPECTED WITH THIS STORM.
 
 
SW

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 8:40 PM CDTSevere Thunderstorm WarningTOPPottawatomie35 min
Apr 21, 9:07 PM CDTSevere Thunderstorm WarningTOPLyon38 min
Apr 21, 9:45 PM CDTSevere Thunderstorm WarningTOPLyon, Wabaunsee30 min
Apr 21, 10:14 PM CDTSevere Thunderstorm WarningTOPOsage, Shawnee46 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1996Every severe thunderstorm warning in 1996

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.