Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 77, NWS St. Louis, MO

June 14, 1998Clark County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 14, 1998, 4:14 PM CDT for Clark County, Missouri. It was in force for 31 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 14, 1998, 4:14 PM CDT (21:14 UTC)
Expired
Jun 14, 1998, 4:45 PM CDT
In force
31 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Clark County, MO

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 14, 2:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.2 hours before the alert went out and 170 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, Davenport, at 12:00Z on 1998-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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, Davenport, at 12:00Z on 1998-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.19395878Sfc1 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
8 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
922 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

549 
WFUS1 KSTL 142113 RRA
TORSTL
MOC045-142145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
414 PM CDT SUN JUN 14 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CLARK COUNTY IN NORTHEASTERN MISSOURI

* UNTIL 445 PM CDT

* AT AT 412 PM... AREA LAW ENFORCEMENT INDICATED A TORNADO JUST
  SOUTH OF PEAKSVILLE BETWEEN ALEXANDRIA AND ST. PATRICK... MOVING
  NORTHEAST AT 20 MPH.

* LOCATIONS IN THE PATH...
  ATHENS
  REVERE
  ST. FRANCISVILLE
  ALEXANDRIA

A TORNADO ON THE GROND NEAR ST. PATRICK AT 406 PM

A TORNADO IS ON THE GROUND IN YOU ARE IN THE PATH...MOVE
IMMEDIATELY TO A SUBSTANTIAL STRUCTURE NOW FOR PROTECTION. A
BASEMENT OFFERS THE BEST SHELTER. YOUR LIFE AND THE LIVES OF THOSE
AROUND YOU MAY DEPEND ON YOUR ACTIONS.

AMS/DF


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 3:33 AM CDTSevere Thunderstorm WarningLSXMonroe32 min
Jun 14, 4:46 AM CDTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway49 min
Jun 14, 5:59 AM CDTSevere Thunderstorm WarningLSXMontgomery31 min
Jun 14, 6:17 AM CDTSevere Thunderstorm WarningLSXLincoln, Warren48 min
Jun 14, 7:13 AM CDTSevere Thunderstorm WarningLSXSaint Charles47 min
Jun 14, 2:15 PM CDTTornado WarningLSXAudrain15 min
Jun 14, 2:18 PM CDTSevere Thunderstorm WarningLSXKnox32 min
Jun 14, 2:29 PM CDTTornado WarningLSXPike36 min
Jun 14, 2:39 PM CDTSevere Thunderstorm WarningLSXRalls46 min
Jun 14, 2:57 PM CDTTornado WarningLSXScotland33 min
Jun 14, 2:57 PM CDTTornado WarningLSXClark, Scotland38 min
Jun 14, 3:05 PM CDTTornado WarningLSXPike35 min
Jun 14, 3:29 PM CDTTornado WarningLSXClark46 min
Jun 14, 3:35 PM CDTTornado WarningLSXPike65 min
Jun 14, 3:40 PM CDTTornado WarningLSXLewis50 min
Jun 14, 3:43 PM CDTSevere Thunderstorm WarningLSXMarion52 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.