Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Springfield, MO

April 16, 1990Oregon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 16, 1990, 8:32 PM CDT for Oregon County, Missouri. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
Apr 16, 1990, 8:32 PM CDT (01:32 UTC)
Expired
Apr 16, 1990, 9:30 PM CDT
In force
58 min
Issued by
NWS Springfield, MO
Area
Whole counties

County Oregon 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, 1.5 hours before the alert went out and 215 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 1990-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 993 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 1990-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
993 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1295 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 170132
SVRSGF
MOC149-170230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD MO
832 PM CDT MON APR 16 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTH CENTRAL PART OF MISSOURI
      OREGON

AT 825 PM CDT A SEVERE THUNDERSTORM WAS 25 MILES EAST OF WEST
PLAINS MISSOURI MOVING SOUTHEAST 30 MILES AN HOUR.

THE STORM WILL MOVE ACROSS THE COMMUNITIES OF MANY SPRINGS...
AND RIVERTON.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE.
DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES OR ELECTTRICAL
APPLIANCES.

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

 LEE

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, Apr 16, 6:10 PM CDT, 2 hours 22 minutes before
MOZ016-170000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
610 PM CDT MON APR 16 1990

 ...A THUNDERSTORM WAS PRODUCING ONE HALF INCH HAIL 25 MILES NORTHWEST
OF SPRINGFIELD MISSOURI...

A VERY STRONG THUNDERSTORM 25 MILES NORTHWEST OF SPRINGFIELD MISSOURI...
BETWEEN WALNUT GROVE AND EUDORA...PRODUCED ONE HALF INCH HAIL AS
IT CROSSED THE AREA AT 600 PM.  THIS THUNDERSTORM WAS MOVING EAST
15 MILES AN HOUR AND WILL MOVE ACROSS THE SOUTHERN PART OF POLK COUNTY
TO PLEASANT HOPE...20 MILES NORTH OF SPRINGFIELD...BY 630 PM.

BESIDES THE HAIL PEOPLE SHOULD EXPECT BRIEF HEAVY RAIN...DEADLY
LIGHTNING...AND STRONG GUSTY WIND IF YOU ARE IN THE VICINITY OF
THIS THUNDERSTORM.

b
                                                                          [

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

LEE
Special weather statement, Apr 16, 6:12 PM CDT, 2 hours 20 minutes before
MOZ016-170000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
610 PM CDT MON APR 16 1990

 ...A THUNDERSTORM WAS PRODUCING ONE HALF INCH HAIL 25 MILES NORTHWEST
OF SPRINGFIELD MISSOURI...

A VERY STRONG THUNDERSTORM 25 MILES NORTHWEST OF SPRINGFIELD MISSOURI...
BETWEEN WALNUT GROVE AND EUDORA...PRODUCED ONE HALF INCH HAIL AS
IT CROSSED THE AREA AT 600 PM.  THIS THUNDERSTORM WAS MOVING EAST
15 MILES AN HOUR AND WILL MOVE ACROSS THE SOUTHERN PART OF POLK COUNTY
TO PLEASANT HOPE...20 MILES NORTH OF SPRINGFIELD...BY 630 PM.

BESIDES THE HAIL PEOPLE SHOULD EXPECT BRIEF HEAVY RAIN...DEADLY
LIGHTNING...AND STRONG GUSTY WIND IF YOU ARE IN THE VICINITY OF
THIS THUNDERSTORM.c

                                                                          [

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

LEE
Special weather statement, Apr 16, 6:32 PM CDT, 2 hours before
MOZ016-170030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
630 PM CDT MON APR 16 1990

...STRONG THUNDERSTORMS ARE CONTINUING TO DEVELOP OVER SOUTHWEST
MISSOURI...

RADAR AT 625 PM CDT INDICATED A CLUSTER OF THUNDERSTORMS OVER GREENE...
WEBSTER...DALLAS...AND WRIGHT COUNTIES.  SOME STRONG THUNDERSTORMS IN
THE CLUSTER WERE 5 MILES SOUTHEAST OF SPRINGFIELD MISSOURI...15 MILES
NORTHEAST OF SPRINGFIELD NEAR FAIR GROVE...AND 25 MILES EAST OF SPRINGFIELD
JUST NORTH OF SEYMOUR.

THE THUNDERSTORMS WERE MOVING EAST 15 MILES AN HOUR.  THE THUNDERSTORM
SOUTHEAST OF SPRINGFIELD PRODUCED MARBLE SIZE HAIL.  ANYONE IN THE
VICIINITY OF THESE THUNDERSTORMS SHOULD EXPECT HAIL...BRIEF HEAVY RAIN...
DEADLY LIGHTNING AND STRONG GUSTY WIND.

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

LEE
Special weather statement, Apr 16, 6:57 PM CDT, 1 hour 35 minutes before
MOZ016-170045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
655 PM CDT MON APR 16 1990

...AN INTENSE THUNDERSTORM HAS DEVELOPED 10 MILES SOUTHEAST OF
SPRINGFIED MISSOURI IN WEBSTER COUNTY...

AN INTENSE THUNDERSTORM HAS DEVELOPED 10 MILES SOUTHEAST OF SPRINGFIELD
AND WAS MOVING EAST 15 MILES AN HOUR.

THIS THUNDERSTORM WILL MOVE ACROSS THE COMMUNITIES OF FORDLAND AND
SEYMOUR BY 715 PM CDT.

PEOPLE IN THE PATH OF THIS THUNDERSTORM SHOULD EXPECT HAIL...STRONG GUSTY
WIND...BRIEF HEAVY RAIN AND DEADLY LIGHTNING.

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

LEE
Special weather statement, Apr 16, 7:37 PM CDT, 55 minutes before
MOZ016-020-170115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
7350 PM CDT MON APR 16 1990

...A STRONG THUNDERSTORM HAD DEVELOPED 40 MILES SOUTHEAST OF SPRINGFIELD
MISSOURI SOUTH OF AVA...

RADAR AT 730 PM CDT INDICATED A STRONG THUNDERSTORM 40 MILES SOUTHEAST OF
SPRINGFIELD MISSOURI JUST SOUTH OF AVA MISSOURI.  THIS THUNDERSTORM WAS
MOVING EAST 15 MILES AN HOUR.

THIS THUNDERSTORM WILL MOVE EAST ACROSS THE SMALL COMMUNITIES OF SWEDEN...
CHAMPION...AND GENTRYVILLE BY 800 PM.

THIS THUNDERSTORM MAY INCREASE IN INTENSITY AS IT MOVES EAST.  ANYONE IN
THE VICINITY OF THIS THUNDERSTORM SHOULD EXPECT STRONG GUSTY WIND...HAIL...
AND BRIEF HEAVY RAIN.

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

LRR
Special weather statement, Apr 16, 8:16 PM CDT, 16 minutes before
MOZ016-021-170200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
815 PM CDT MON APR 16 1990

...INTENSE THUNDERSTORMS WERE MOVING ACROSS HOWELL COUNTY EAST AND SOUTH
OF WEST PLAINS MISSOURI AT 805 PM...

RADAR AT 810 PM CDT INDICATED INTENSE THUNDERSTORMS IN A LINE FROM 10
MILES SOUTH OF WEST PLAINS TO 15 MILES EAST OF WEST PLAINS IN NORTH-
WEST OREGON COUNTY.  THE THUNDERSTORMS WERE MOVING SOUTHEAST 30 MILES
AN HOUR.

THIS LINE OF THUNDERSTORMS WILL MOVE INTO THE KOSHKONONG...ALTON...AND
THAYER COMMUNITIES BY 845 PM

PEOPLE MAY EXPECT HAIL...HEAVY RAIN AND STRONG GUSTY WIND AS THESE STORMS
MOVE SOUTHEAST.

WEST PLAINS POLICE REPORTED MARBLE SIZE HAIL AND STREET FLO6ODING AS
THESE STORMS MOVED THROUGH THE CITY.

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.

IssuedProductOfficeCountiesLasted
Apr 16, 9:19 PM CDTSevere Thunderstorm WarningSGFMcDonald56 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.