Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 41, NWS Springfield, MO

May 20, 1990Stone County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 20, 1990, 10:02 PM CDT for Stone County, Missouri. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
May 20, 1990, 10:02 PM CDT (03:02 UTC)
Expired
May 20, 1990, 11:00 PM CDT
In force
58 min
Issued by
NWS Springfield, MO
Area
Whole counties

County Stone 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

Springfield, MO (KUMN), launched 00:00Z, 3.0 hours before the alert went out and 35 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 1990-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2299 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 1990-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.19395878Sfc1 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
2299 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1348 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 210302
SVRSGF
MOC225-145-209-210400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1002 PM CDT SUN MAY 20 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF MISSOURI
      WEBSTER...NEWTON...STONE

AT 1000 PM CDT RADAR INDICATED SEVERE STORMS NEAR GRANBY 30 MILES
SOUTHEAST OF JOPLIN 25 MILES SOUTHWEST OF SPRINGFIELD AND
25 MILES EAST OF SPRINGFIELD IN SOUTHWEST MISSOURI.  THESE STORMS
ARE DROPPING LARGE HAIL AND CONTAINING DAMAGING WINDS.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHUTNING...AND VERY HEAVY RAIN.  MOVE TO AN INTERIOR ROOM
ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

 BAREIS

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 8:27 PM CDTSevere Thunderstorm WarningSGFDade, Jasper, Lawrence, Newton63 min
May 20, 9:22 PM CDTSevere Thunderstorm WarningSGFJasper, Lawrence68 min
May 20, 9:22 PM CDTSevere Thunderstorm WarningSGFChristian, Greene68 min
May 20, 10:02 PM CDTSevere Thunderstorm WarningSGFWebster58 min
May 20, 10:02 PM CDTSevere Thunderstorm WarningSGFNewton58 min
May 20, 10:36 PM CDTTornado WarningSGFChristian, Greene, Webster54 min
May 20, 10:59 PM CDTTornado WarningSGFStone46 min
May 20, 11:11 PM CDTSevere Thunderstorm WarningSGFBarry, Newton64 min
May 20, 11:44 PM CDTSevere Thunderstorm WarningSGFTexas, Wright61 min
May 21, 12:20 AM CDTSevere Thunderstorm WarningSGFBarry, McDonald, Newton, Stone55 min
May 21, 12:20 AM CDTSevere Thunderstorm WarningSGFJasper55 min
May 21, 12:45 AM CDTSevere Thunderstorm WarningSGFShannon, Texas60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 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.