Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 61, NWS Springfield, MO

November 27, 1990Barton County, Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Nov 27, 1990, 7:57 AM CST for Barton County, Vernon County, Missouri. It was in force for 63 min.

The area

The counties it named.

The facts

Issued: Nov 27, 1990, 7:57 AM CST (13:57 UTC)
Expired: Nov 27, 1990, 9:00 AM CST
In force: 63 min
Issued by: NWS Springfield, MO
Area: Whole counties

Counties Barton County, MO, Vernon 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 12:00Z, 2.0 hours before the alert went out and 99 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 623 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 660 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 267 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 271357
SVRSGF
MOC011-145-217-097-271500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD MO
757 AM CST TUE NOV 27 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 900 AM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF MISSOURI
      BARTON...NEWTON...JASPER...

   IN THE WEST CENTRAL PART OF MISSOURI
      VERNON...

AT 7:50 AM CST RADAR INDICATES SEVERE THUNDERSTORMS EXTENDING FROM
35 MILES NORTHWEST TO 60 MILES SOUTHWEST OF JOPLIN...MOVING TO
THE NORTHEAST AT AROUND 50 MILES AN HOUR.  LARGE HAIL AND DAMAGING
WINDS ARE LIKELY WITH PASSAGE OF THE STORMS.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDL)Y CHANGING WEATHER CONDITIONS.

 SIMKULET

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, Nov 27, 6:35 AM CST, 1 hour 22 minutes before

MOZ015-016-019-020-021-271330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
635 AM CST TUE NOV 27 1990

...A TORNADO WATCH IS IN EFFECT FOR A PORTION OF EXTREME SOUTHWEST
MISSOURI UNTIL NOON...

A COLD FRONT WAS MOVING SOUTHEAST ACROSS MISSOURI THIS MORNING.  THE
FRONT WAS JUST SOUTH OF KANSAS CITY AT 6 AM.  TEMPERATURES SOUTH OF
THE FRONT AROUND SOUTHWEST MISSOURI WERE IN THE MID TO UPPER 60S.
WINDS WERE SOUTH 15 TO 25 MPH AND GUSTING INTO THE 30 MPH RANGE.

RADAR AT 630 AM SHOWED SCATTERED SHOWERS AND THUNDERSTORMS AROUND
SOUTHWEST MISSOURI.  THE THUNDERSTORMS WERE MOVING NORTHEAST 40
MILES AN HOUR.

PERSONS GOING TO WORK THIS MORNING SHOULD INCLUDE RAIN GEAR.  LATER
THIS AFTERNOON...AROUND GOING HOME TIME...TEMPERATURES WILL BE TAKING
A NOSE DIVE AS THE FRONT CROSSES THE SPRINGFIELD AREA.
REMEMBER...A TORNADO WATCH IS IN EFFECT UNTIL NOON FOR PERSONS IN
VERNON...CEDAR...BARTON...JASPER...LAWRENCE...NEWTON...MCDONALD...
AND BARRY COUNTIES.

PEOPLE SHOULD BE ALERT FOR LATER WEATHER BULLETINS CONCERNING THE STORMS.

LEE

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 27, 7:57 AM CST	Severe Thunderstorm Warning	SGF	Jasper, Newton	63 min
Nov 27, 10:58 AM CST	Severe Thunderstorm Warning	SGF	Christian, Greene	47 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1990 Every 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.