Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 68, NWS St. Louis, MO

June 14, 1998Audrain County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 14, 1998, 2:15 PM CDT for Audrain County, Missouri. It was in force for 15 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, 2:15 PM CDT (19:15 UTC)
Expired
Jun 14, 1998, 2:30 PM CDT
In force
15 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Audrain County, MO

The radar

The St Louis radar (KLSX), 116 km from the middle of the area, began a volume at 19:17 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 nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.3 hours before the alert went out and 290 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.

000 
TTAA00 KSTL 141914 RRA
TORSTL
MOC007-141930-

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN AUDRAIN COUNTY IN CENTRAL MISSOURI

* UNTIL 230 PM CDT

* AT 213 PM... AREA LAW ENFORCEMENT INDICATED A TORNADO 5 SOUTHEAST
  OF LADDONIA... MOVING EAST AT 20 MPH.

* LOCATIONS IN THE PATH...


MISSOURI HIGHWAY PATROL REPORTED A TORNADO ON THE GROUND JUST EAST
OF LADDONIA AT 212 PM.

THIS IS A DANGEROUS SITUATION! IF IN THE PATH...TAKE COVER NOW!
MOVE TO A BASEMENT IF AVAILABLE. IF NOT...STAY ON THE LOWEST LEVEL
AND GO TO A SMALL INTERIOR ROOM. MOBILE HOMES AND ATUTOMOBILESHOULD
BE ABANDONED IN FAVOR OF A STRONG STRUCTURE. AS A LAST RESORT...
MOVE TO A DITCH OR CULVERT AND COVER YOUR HEAD.

AMS/DF


&

What forecasters said that day

The local office's own words before this tornado 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, Jun 14, 9:30 AM CDT, 4 hours 45 minutes before
MOZ072>075-084-085-099-141730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
930 AM CDT SUN JUN 14 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
SOUTHEAST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN MISSOURI...CRAWFORD...WASHINGTON...ST FRANCOIS...STE GENEVIEVE...
REYNOLDS...IRON...AND MADISON

SCATTERED THUNDERSTORMS ARE NOT EXPECTED ACROSS THE REGION INTO THE
EARLY AFTERNOON...THEREFORE THE SEVERE THUNDERSTORM WATCH HAS BEEN
CANCELLED.

TPS
Special weather statement, Jun 14, 9:30 AM CDT, 4 hours 45 minutes before
MOZ072>075-084-085-099-141730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
930 AM CDT SUN JUN 14 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
SOUTHEAST MISSOURI...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN MISSOURI...CRAWFORD...WASHINGTON...ST FRANCOIS...STE GENEVIEVE...
REYNOLDS...IRON...AND MADISON

SCATTERED THUNDERSTORMS ARE NOT EXPECTED ACROSS THE REGION INTO THE
EARLY AFTERNOON...THEREFORE THE SEVERE THUNDERSTORM WATCH HAS BEEN
CANCELLED.

TPS
Special weather statement, Jun 14, 10:20 AM CDT, 3 hours 55 minutes before
ILZ060-064-065-069-070-074-079-141715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1020 AM CDT SUN JUN 14 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
SOUTHWEST ILLINOIS...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN ILLINOIS...MONTGOMERY...BOND...CLINTON...WASHINGTON...RANDOLPH...
FAYETTE...AND MARION

ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION INTO THE
EARLY AFTERNOON...BUT THE THREAT OF SEVERE WEATHER HAS DIMINISHED AND
NO MORE SEVERE WEATHER IS EXPECTED

TPS
Special weather statement, Jun 14, 10:20 AM CDT, 3 hours 55 minutes before
ILZ060-064-065-069-070-074-079-141715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1020 AM CDT SUN JUN 14 1998

...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR PORTIONS OF
SOUTHWEST ILLINOIS...

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING
COUNTIES...

IN ILLINOIS...MONTGOMERY...BOND...CLINTON...WASHINGTON...RANDOLPH...
FAYETTE...AND MARION

ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION INTO THE
EARLY AFTERNOON...BUT THE THREAT OF SEVERE WEATHER HAS DIMINISHED AND
NO MORE SEVERE WEATHER IS EXPECTED

TPS
Special weather statement, Jun 14, 11:45 AM CDT, 2 hours 30 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026-
027-034>036-041-042-047>052-059>065-072>075-084-085-099-150200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1145 AM CDT SUN JUN 14 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

AN INTENSE LOW PRESSURE SYSTEM WAS LOCATED OVER NORTHWEST MISSOURI EARLY
THIS AFTERNOON.  VERY UNSTABLE AND MOIST AIR WAS LOCATED OVER SOUTHEAST
MISSOURI.  AS THE LOW PRESSURE SYSTEM MOVES TO THE EAST THIS AFTERNOON
AND EVENING...IT WILL PULL THIS MOIST AND UNSTABLE AIR NORTHWARD INTO
EASTERN MISSOURI.

THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
SOUTHWEST ILLINOIS AND EASTERN MISSOURI THIS AFTERNOON AND EVENING.
THE AREA IS EAST AND SOUTH OF A LINE FROM CENTERVILLE IN REYNOLDS
COUNTY TO TROY IN LINCOLN COUNTY TO EDWARDSVILLE IN MADISON COUNTY
ILLINOIS TO NASHVILLE IN WASHINGTON COUNTY ILLINOIS.  THIS AREA
INCLUDES THE ENTIRE ST LOUIS METROPOLITAN AREA.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND
NORTHEAST MISSOURI.

EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD STAY INFORMED ON
WEATHER DEVELOPMENTS AS SKYWARN ACTIVATION WILL LIKELY BE NEEDED THIS
AFTERNOON AND EVENING.

TPS
Special weather statement, Jun 14, 11:45 AM CDT, 2 hours 30 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026-
027-034>036-041-042-047>052-059>065-072>075-084-085-099-150200-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1145 AM CDT SUN JUN 14 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

AN INTENSE LOW PRESSURE SYSTEM WAS LOCATED OVER NORTHWEST MISSOURI EARLY
THIS AFTERNOON.  VERY UNSTABLE AND MOIST AIR WAS LOCATED OVER SOUTHEAST
MISSOURI.  AS THE LOW PRESSURE SYSTEM MOVES TO THE EAST THIS AFTERNOON
AND EVENING...IT WILL PULL THIS MOIST AND UNSTABLE AIR NORTHWARD INTO
EASTERN MISSOURI.

THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
SOUTHWEST ILLINOIS AND EASTERN MISSOURI THIS AFTERNOON AND EVENING.
THE AREA IS EAST AND SOUTH OF A LINE FROM CENTERVILLE IN REYNOLDS
COUNTY TO TROY IN LINCOLN COUNTY TO EDWARDSVILLE IN MADISON COUNTY
ILLINOIS TO NASHVILLE IN WASHINGTON COUNTY ILLINOIS.  THIS AREA
INCLUDES THE ENTIRE ST LOUIS METROPOLITAN AREA.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND
NORTHEAST MISSOURI.

EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD STAY INFORMED ON
WEATHER DEVELOPMENTS AS SKYWARN ACTIVATION WILL LIKELY BE NEEDED THIS
AFTERNOON AND EVENING.

TPS

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, 2:18 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
Jun 14, 4:14 PM CDTTornado WarningLSXClark31 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; radar from the NEXRAD Level II archive.