Alert archive / Missouri / Tornado Warnings in 1990

Tornado Warning 2, NWS Springfield, MO

May 12, 1990Ozark County, Missouri

NWS Springfield, MO issued this tornado warning at May 12, 1990, 4:51 PM CDT for Ozark County, Missouri. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
May 12, 1990, 4:51 PM CDT (21:51 UTC)
Expired
May 12, 1990, 5:45 PM CDT
In force
54 min
Issued by
NWS Springfield, MO
Area
Whole counties

County Ozark 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, 9.9 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 12:00Z on 1990-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 241 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 12:00Z on 1990-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 square meters per square second.1939587897117Sfc1 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
241 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSGF 122151
TORSGF
MOC229-153-067-122245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD MO
451 PM CDT SAT MAY 12 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE SOUTHWEST PART OF MISSOURI
      WRIGHT...OZARK...DOUGLAS

AT 440PM CDT THE HIWAY PATROL INDICATED A TORNADO 50 MILES SOUTHEAST
OF SPRINGFIELD MISSOURI WEST OF MOUNTAIN GROVE MOVING TO THE EAST
AT 25 MILES AN HOUR.

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE TO BE IS IN
A BASEMENT.  IF NO BASEMENT IS AVAIABE...FIND SHELTER IN AN INTERIOR
ROOM ON THE LOWEST FLOOR.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  LEAVE YOUR CAR
AND GO TO A STRONG BUILDING.  IF NO STRUCTURE IS NEARBY...TAKE
TAKE SHELTER IN A DITCH OR LOW SPOT.

THIS IS A DANGEROUS SITUATION...IF YOU ARE IN THE PATH OF THIS
TORNADO MOVE TO A SHSELTER BELOW GROUND...OR TO SMALL INTERIOR
ROOM ON THE LOWEST FLOOR.

IF YOU LIVE IN A HOME OR APARTMENT...FIND SHELTER IN THE INNERMOST
PORTION OF THE BUILDING ON THE LOWEST FLOOR.

 WB

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 4:04 PM CDTSevere Thunderstorm WarningSGFLaclede, Webster, Wright41 min
May 12, 4:51 PM CDTTornado WarningSGFDouglas, Wright54 min
May 12, 5:48 PM CDTSevere Thunderstorm WarningSGFHowell42 min
May 12, 6:32 PM CDTSevere Thunderstorm WarningSGFOregon43 min

Nearby

Tornado Warnings in Missouri, 1990Every tornado warning in 1990Tornadoes 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.