Alert archive / Missouri / Flash Flood Warnings in 1990

Flash Flood Warning 53, NWS Kansas City, MO

June 20, 1990Holt County, Nodaway County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jun 20, 1990, 2:04 AM CDT for Holt County, Nodaway County, Missouri. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 20, 1990, 2:04 AM CDT (07:04 UTC)
Expired
Jun 20, 1990, 5:00 AM CDT
In force
3 hr
Issued by
NWS Kansas City, MO
Area
Whole counties

Counties Holt County, MO, Nodaway 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, 7.1 hours before the alert went out and 146 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 200705
FFWMCI
MOC075-081-087-147-201000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
204 AM CDT WED JUN 20 1990
 
THE NATIONAL WEATHER SERVICE IN KANSAS CITY MISSOURI HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  500 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST MISSOURI
          ...GENTRY...HARRISON...HOLT...NODAWAY
 
AT 200 AM CDT...THUNDERSTORMS...PRODUCING VERY HEAVY RAIN CONTINUE
ACROSS THE NORTHWEST MISSOURI COUNTIES OF HOLT...NODAWAY...AND GENTRY
COUNTIES MOVING EAST TOWARDS HARRISON COUNTY. SATELLITE PRECIPITATION
ESTIMATES INDICATE THAT APPROXIMATELY /1.2/ INCHES OF RAIN HAS FALLEN
OVER PORTIONS OF NORTHWEST HOLT COUNTY SINCE 10PM. THIS AMOUNT OF
RAINFALL APPROACHES FLASH FLOOD GUIDANCE FOR THIS AREA THAT IS SET AT
/1.8/ INCHES OF RAINFALL IN ANY THREE HOUR PERIOD. THIS RAIN IS
FALLING ON ALREADY SATURATED GROUND AND THE THUNDERSTORMS CONTINUE TO
FORM AND MOVE ACROSS THE SAME AREA.
 
THUNDERSTORMS ARE EXPECTED TO CONTINUE OVER THIS WARNED AREA UNTIL
AROUND 4AM. FLASH FLOODING IS EXPECTED IN LOW LYING
AREAS...STREETS...AND ALONG SMALL STREAMS AND CREEKS. BE ESPECIALLY
CAUTIOUS AT NIGHT WHEN FLASH FLOOD DANGERS ARE MORE DIFFICULT TO
INDENTIFY.
 
THIS FLASH FLOOD WARNING INCLUDES THE MAJOR TOWNS OF MOUND
CITY...MARYVILLE...CONCEPTION JUNCTION AND ALBANY ALL IN MISSOURI. THE
FLASH FLOOD WARNED AREA IS LOCATED APPROXIMATELY FROM 25 TO 50 MILES
NORTH OF ST. JOSEPH MISSOURI.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGEHER GROUND.
POOLE

What forecasters said that day

The local office's own words before this flash flood 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, 5 hours 59 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.
Special weather statement, Jun 20, 1:36 AM CDT, 28 minutes before
MOZ008-200730-

SPECIAL WEATHER STSTEMENT
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
130 AM CDT WED JUN 20 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR THE KANSAS CITY
METROPOLITAN AREA UNTIL 3AM CDT...
...FLASH FLOOD WATCH FOR NORTHWEST MISSOURI TONIGHT...

THE METROPOLITAN AREA OF KANSAS CITY CONTINUES UNDER A SEVERE
THUNDERSTORM WATCH...BUT AT 130AM...RADAR DID NOT INDICATE ANY
SEVERE THUNDERSTORMS THREATENING THE METROPOLITAN AREA. A LARGE
AREA OF SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS WAS LOCATED ACROSS
EASTCENTRAL KANSAS MOVING INTO THE KANSAS CITY AREA FROM THE WEST.

THUNDERSTORMS WILL CONTINUE ACROSS THE METROPOLITAN AREA UNTIL
AROUND SUNRISE. RAINFALL WITH THIS LARGE PRECIPITATION AREA
COULD CAUSE BRIEF STREET FLOODING AND POSSIBLE RISES ON SMALL CREEKS
AND STREAMS...AS THE RAIN IS FALLING ON PREVIOUSLY SATURATED GROUND.
AT 130 AM THE BACK EDGE OF THE PRECIPITAION WAS LOCATED AS
FAR WEST IN KANSAS( AS SALINA WITH THE STORMS MOVING EAST AT
30 TO 35 MPH.

POOLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 1:02 AM CDTSevere Thunderstorm WarningEAXGentry, Nodaway58 min
Jun 20, 1:02 AM CDTSevere Thunderstorm WarningEAXDeKalb58 min
Jun 20, 2:04 AM CDTFlash Flood WarningEAXGentry, Harrison3 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.