Alert archive / Missouri / Flash Flood Warnings in 1990

Flash Flood Warning 23, NWS Kansas City, MO

May 25, 1990Cass County, Johnson County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 25, 1990, 10:12 PM CDT for Cass County, Johnson County, Missouri. It was in force for 108 min.

The area

The counties it named.

The facts

Issued
May 25, 1990, 10:12 PM CDT (03:12 UTC)
Expired
May 26, 1990, 12:00 AM CDT
In force
108 min
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Cass County, MO, Johnson County, MO

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, 3.2 hours before the alert went out and 139 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 1990-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1873 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 1990-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
1873 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
126 m²/s²
Significant tornado parameter
0.6
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 260312
FFWMCI
MOC101-037-KSC121-260500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE KANSAS CITY INT'L AIRPORT MO
1012 PM CDT FRI MAY 25 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1200 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE WEST CENTRAL PART OF MISSOURI
      JOHNSON...NORTHERN CASS...

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

AT 1010 PM CDT RADAR INDICATED NUMEROUS THUNDERSTORMS PRODUCING
VERY HEAVY RAIN THAT EXTENDED FROM NORTHWEST MIAMI COUNTY KANSAS
THRU NORTHERN CASS COUNTY MISSOURI TO JOHNSON COUNTY MISSOURI.

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT.  IT IS IMPORTANT TO
KNOW WHERE YOU ARE IN RELATION TO STREAMS...RIVERS...OR CREEKS THAT
CAN BECOME DEADLY WHEN SWOLLEN BY HEAVY RAIN.  CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS OR CREEKS WHEN HEAVY RAIN THREATENS.

 LTH/MT/GAG

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 25, 9:29 PM CDTSevere Thunderstorm WarningEAXMaries, Pulaski46 min
May 25, 10:40 PM CDTSevere Thunderstorm WarningEAXJackson35 min
May 25, 11:11 PM CDTFlash Flood WarningEAXCamden, Morgan3 hr
May 25, 11:11 PM CDTFlash Flood WarningEAXCole3 hr
May 26, 2:36 AM CDTFlash Flood WarningEAXMorgan2 hr
May 26, 2:41 AM CDTFlash Flood WarningEAXHenry4 hr

Nearby

Flash Flood Warnings in Missouri, 1990Every flash flood 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.