Alert archive / Kansas / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 21, NWS Topeka, KS

June 11, 1987Douglas County, Jefferson County, Shawnee County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jun 11, 1987, 3:00 PM CDT for Douglas County, Jefferson County, Shawnee County, Kansas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 11, 1987, 3:00 PM CDT (20:00 UTC)
Expired
Jun 11, 1987, 4:00 PM CDT
In force
60 min
Issued by
NWS Topeka, KS
Area
Whole counties

Counties Douglas County, KS, Jefferson County, KS, Shawnee 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 12:00Z, 8.0 hours before the alert went out and 15 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 12:00Z on 1987-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 363 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 12:00Z on 1987-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 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
363 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
108 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 KTOP 112001
SVRTOP
KSC087-177-045-112100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
300 PM CDT THU JUN 11 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 400 PM CDT FOR THE FOLLOWING COUNTIES OF
 
NORTHEAST KANSAS... SOUTHERN JEFFERSON
 
EAST CENTRAL KANSAS... EASTERN SHAWNEE... NORTHERN DOUGLAS
 
AT 300 PM CDT A SEVERE THUNDERSTORM WAS OCCURRING AT BILLARD AIRPORT IN
TOPEKA. THIS STORMS IS MOVING EAST AT 20 MILES AN HOUR.
 
THIS THUNDERSTORM WILL LIKELY PRODUCE LARGE HAIL...HEAVY RAIN...DAMAGING
WINDS AND DANGEROUS LIGHTNING.  SEEK SHELTER FROM THIS STORM.
 
MCNULTY

Nearby

Severe Thunderstorm Warnings in Kansas, 1987Every severe thunderstorm warning in 1987

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.