Alert archive / Missouri / Flash Flood Warnings in 1992

Flash Flood Warning 2, NWS Springfield, MO

April 20, 1992Ozark County, Missouri

NWS Springfield, MO issued this flash flood warning at Apr 20, 1992, 1:00 AM CDT for Ozark County, Missouri. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Apr 20, 1992, 1:00 AM CDT (06:00 UTC)
Expired
Apr 20, 1992, 6:30 AM CDT
In force
6 hr
Issued by
NWS Springfield, MO
Area
Whole counties

County Ozark County, MO

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 6.0 hours before the alert went out and 124 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, Springfield, MO at 00:00Z on 1992-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Springfield, MO at 00:00Z on 1992-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
13 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
1430 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 200600
FFWSGF
MOC035-149-153-203-091-201130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD MO
100 AM CDT MON APR 20 1992

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 630 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTH CENTRAL PART OF MISSOURI
      CARTER...OREGON...SHANNON...HOWELL...

   IN THE SOUTHWEST PART OF MISSOURI
      OZARK...

AT 1240 AM CDT RADAR INDICATIONS WERE THAT HEAVY RAINFALL HAD
FALLEN OVER THE VICINITY OF WEST PLAINS AND THAT GENERAL AREA.
A LARGE AREA OF RAINFALL WAS MOVING INTO THE WARNED AREA
FROM THE SOUTH AND SEVERAL STREAMS IN THE AREA WERE NEAR BANKFULL.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOOD WATERS.  IF FLASH FLOODING IS OBSERVED...
ACT QUICKLY.  MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WlATER BEGINS RISING.

 OPTIONAL FREE FORMAT ACTION STATEMENT

 NINE

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 1:00 AM CDTFlash Flood WarningSGFCarter, Howell, Oregon, Shannon6 hr

Nearby

Flash Flood Warnings in Missouri, 1992Every flash flood warning in 1992

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.