Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 55, NWS St. Louis, MO

June 10, 1998Gasconade County, Montgomery County, Osage County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 10, 1998, 6:03 AM CDT for Gasconade County, Montgomery County, Osage County, Missouri. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 10, 1998, 6:03 AM CDT (11:03 UTC)
Expired
Jun 10, 1998, 7:05 AM CDT
In force
62 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Gasconade County, MO, Montgomery County, MO, Osage County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 11.1 hours before the alert went out and 271 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 1998-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2845 joules per kilogram.LCLEL10008507005003002001001 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 1998-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 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
2845 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
988 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.7

Open this sounding in Storm Lab

The text

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

172 
WFUS1 KSTL 101105 RRA
TORSTL
MOC073-139-151-101205-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
603 AM CDT WED JUN 10 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GASCONADE COUNTY IN EASTERN MISSOURI
  EXTREME SOUTHERN MONTGOMERY COUNTY MISSOURI IN EASTERN MISSOURI
  EXTREME NORTHEASTERN OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 705 AM CDT

* AT 600 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO 2 MILES SOUTHEAST OF CHAMOIS IN EXTREME NORTHEAST OSAGE
  CO.... MOVING EAST AT 35 MPH.

* LOCATIONS IN THE PATH...
  BIG SPRING
  HERMAN

DOPPLER RADAR IS SHOWING A STRONG TORNADO SIGNAL. IF YOU ARE IN
THE PATH MOVE TO A SHELTER NOW A BASEMENT IS BEST...BUT IF NOT
AVAILABLE...MOVE TO THE LOWEST LEVEL AND HIDE IN A SMALL INTERIOR
ROOM. GET OUT OF MOBILE HOMES AND CARS IN FAVOR OF A STRONG
BUILDING.

PEDIGO

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 7:19 PM CDTSevere Thunderstorm WarningLSXIron, Reynolds46 min
Jun 9, 7:53 PM CDTSevere Thunderstorm WarningLSXSaint Francois32 min
Jun 9, 8:07 PM CDTSevere Thunderstorm WarningLSXIron33 min
Jun 9, 8:21 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve49 min
Jun 10, 5:08 AM CDTSevere Thunderstorm WarningLSXBoone62 min
Jun 10, 5:21 AM CDTTornado WarningLSXBoone49 min
Jun 10, 6:22 AM CDTTornado WarningLSXFranklin63 min

Nearby

Tornado Warnings in Missouri, 1998Every tornado warning in 1998Tornadoes in 1998

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.