Alert archive / Kansas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 70, NWS Kansas City, MO

June 19, 1990Johnson County, Miami County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 19, 1990, 11:45 PM CDT for Johnson County, Miami County, Kansas. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1990, 11:45 PM CDT (04:45 UTC)
Expired
Jun 20, 1990, 12:45 AM CDT
In force
60 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Johnson County, KS, Miami 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, 4.8 hours before the alert went out and 77 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 1990-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3973 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 1990-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 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
3973 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2077 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
320 m²/s²
Significant tornado parameter
0.0
Supercell composite
44.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 200445
SVRMCI
KSC091-121-200545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE KANSAS CITY INT'L AIRPORT MO
1145 PM CDT TUE JUN 19 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1245 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE EAST CENTRAL PART OF KANSAS
      SOUTHERN JOHNSON...NORTHERN MIAMI

AT 1130PM RADAR INDICATED A SEVERE THUNDERSTORM NEAR OTTAWA KANSAS
OVING NORTHEAST AT 30 MILES AN HOUR.  70 MPH WINDS WERE CLOCKED
T OTTAWA.

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.

In the hours before

Special weather statement, Jun 19, 8:05 PM CDT, 3 hours 40 minutes before
MOZ001-004-200200-

SPECIAL WEATHER STSTEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
800 PM CDT TUE JUN 19 1990

A FLASH FLOOD WATCH CONTINUES FOR NORTHWEST MISSOURI...

THUNDERSTOFRMS ARE EXPECTED LATER TONITE ACROSS NORTHWEST MISSOURI...
JUST A LITTLE LATER THAN EARLIER THOUGHT.
THE SOIL IS NEARLY SATURATED FROM RECENT HEAVY RAINS...AND ADDITIONAL
HEAVY RAIN COULD PRODUCE FLASH FLOODING.

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.