Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 97, NWS St. Louis, MO

June 29, 1998Warren County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 29, 1998, 9:08 PM CDT for Warren County, Missouri. It was in force for 47 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 29, 1998, 9:08 PM CDT (02:08 UTC)
Expired
Jun 29, 1998, 9:55 PM CDT
In force
47 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Warren County, MO

The radar

The St Louis radar (KLSX), 42 km from the middle of the area, began a volume at 02:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 29, 7:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.1 hours before the alert went out and 311 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 1998-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1641 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1998-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
1641 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1639 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.4

Open this sounding in Storm Lab

The text

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

180 
WFUS1 KSTL 300209 RRA
TORSTL
MOC219-300255-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
908 PM CDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN AND EASTERN WARREN COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 955 PM CDT

* AT 906 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO TORNADO LOCATED NEAR HIGH HILL... MOVING SOUTHEAST AT 35
  MPH.

* LOCATIONS IN THE PATH...
  WARRENTON
  WRIGHT CITY

TORNADO REPORTED IN THE TOWN OF WELLSVILLE

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A
BASEMENT OFFERS THE BEST PROTECTION. IF NOT AVAILABLE...MOVE TO
THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY
AWAY FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE
ABANDONED IN FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO
OUTRUN A TORNADO IN A VEHICLE

RP


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 7:17 PM CDTTornado WarningLSXKnox48 min
Jun 29, 7:31 PM CDTSevere Thunderstorm WarningLSXMonroe49 min
Jun 29, 7:39 PM CDTTornado WarningLSXShelby46 min
Jun 29, 7:52 PM CDTTornado WarningLSXMonroe33 min
Jun 29, 8:06 PM CDTTornado WarningLSXAudrain49 min
Jun 29, 8:33 PM CDTSevere Thunderstorm WarningLSXMonroe47 min
Jun 29, 8:42 PM CDTTornado WarningLSXMontgomery48 min
Jun 29, 9:15 PM CDTFlash Flood WarningLSXMontgomery, Warren4 hr
Jun 29, 9:15 PM CDTFlash Flood WarningLSXAudrain, Monroe, Shelby4 hr
Jun 29, 10:01 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson44 min
Jun 29, 10:31 PM CDTFlash Flood WarningLSXCallaway, Gasconade3 hr
Jun 29, 10:31 PM CDTFlash Flood WarningLSXBoone3 hr

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; radar from the NEXRAD Level II archive.