Alert archive / Missouri / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 41, NWS St. Louis, MO

June 8, 1993Franklin County, Warren County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 8, 1993, 3:25 PM CDT for Franklin County, Warren County, Missouri. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Jun 8, 1993, 3:25 PM CDT (20:25 UTC)
Expired
Jun 8, 1993, 4:15 PM CDT
In force
50 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Franklin County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 40 km from the middle of the area, began a volume at 20:29 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

Springfield, MO (KUMN), launched 12:00Z, 8.4 hours before the alert went out and 301 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 1993-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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 1993-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
133 J/kg
Mixed-layer CIN
-229 J/kg
Mixed-layer LCL
1404 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
105 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 082026
SVRSTL
MOC071-219-082115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
325 PM CDT TUE JUN 8 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...FRANKLIN COUNTY...WARREN COUNTY
 
AT 320 PM...NWS DOPPLER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS FROM
WEST OF GERALD...55 MILES WEST OF ST. LOUIS TO WARRENTON...45 MILES WEST
OF ST. LOUIS. MOVEMENT OF THESE STORMS WAS TO THE NORTHEAST AT 45 MPH.
 
SOME TOWNS IN THE PATH OF THESE STORMS ARE TRALOAR...NEW HAVEN... AND
WRIGHT CITY.  IF THESE MOVE INTO YOUR AREA...MOVE TO SHELTER.  DAMAGING
WINDS ARE VERY POSSIBLE WITH THESE STORMS.
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
EHG

What forecasters said that day

The local office's own words before this severe thunderstorm 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 8, 2:32 PM CDT, 53 minutes before
MOZ006-009-010-011-013-014-0812030

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
225 PM CDT TUE JUN 8 1993

...STRONG THUNDERSTORMSD WERE SCATTERED ACROSS SOUTHERN AND EASTERN
PARTS OF CENTRAL MISSOURI...

...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM...

AT 220 PM...STRONG THUNDERSTORMS WERE SCATTERED FROM 40 MILES NORTHEAST
OF COLUMBIA...NEAR BELLFLOWER...TO JEFFERSON CITY...TO 40 MILES
NORTHEAST OF SPRINGFIELD NEAR LEBANON. THE STORMS WERE MOVING NORTHEAST
AT 45 MILES AN HOUR. THE FAST MOVEMENT OF THE STORMS MAKES WIND NEAR 50
MILES AN HOUR POSSIBLE...ALONG WITH BRIEF HEAVY RAINS AND DANGEROUS
LIGHTNING.

THESE STORMS COULD BECOME SEVERE AT A MOMENTS NOTICE AND EVEN PRODUCE
TORNADOES. REMAIN ALERT FOR THREATENING WEATHER AND SEEK IMMEDIATE
SHELTER IF NECESSARY. STAY TUNED TO NWS RADIO FOR THE LATEST WEATHER
INFORMATION.

STANLEY
Special weather statement, Jun 8, 2:58 PM CDT, 27 minutes before
MOZ010-011-014-017-082200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
258 PM CDT TUE JUN 8 1993

AT 255 PM CDT RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN WERE
MOVING INTO CENTRAL MISSOURI. THE STRONGEST STORMS WERE OVER MARIES
COUNTY AND SOUTHERN MONTGOMERY COUNTY. THEY WERE MOVING TO THE NORTHEAST
AT 40 MPH. HEAVY RAIN STRONG AND GUSTY WINDS WITH SMALL HAIL WILL
ACCOMPANY THESE STORMS AS THEY MOVE ACROSS PIKE LINCOLN AND WARREN
COUNTIES BETWEEN 3 AND 330 PM THIS AFTERNOON. RADAR INDICATED THAT ONE
HALF TO ONE INCH OF RAIN FELL ACROSS CENTRAL MISSOURI FROM THESE STORMS
BETWEEN 2 AND 3 PM.

WORK
 &
Special weather statement, Jun 8, 3:00 PM CDT, 25 minutes before
MOZ006-009-010-011-013-014-082100-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE COLUMBIA MO
300 PM CDT TUE JUN 8 1993

...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL
MISSOURI...
...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM...

AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST
OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SOUTHWEST OF ROLLA...
AROUND FT. LEONARD WOOD.  THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND
WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM.

THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET
FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY.  STAY ALERT AND
BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED.

LARM
Special weather statement, Jun 8, 3:00 PM CDT, 25 minutes before
MOZ010-011-014-017-082200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
258 PM CDT TUE JUN 8 1993

AT 255 PM CDT RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN WERE
MOVING INTO CENTRAL MISSOURI. THE STRONGEST STORMS WERE OVER MARIES
COUNTY AND SOUTHERN MONTGOMERY COUNTY. THEY WERE MOVING TO THE NORTHEAST
AT 40 MPH. HEAVY RAIN STRONG AND GUSTY WINDS WITH SMALL HAIL WILL
ACCOMPANY THESE STORMS AS THEY MOVE ACROSS PIKE LINCOLN AND WARREN
COUNTIES BETWEEN 3 AND 330 PM THIS AFTERNOON. RADAR INDICATED THAT ONE
HALF TO ONE INCH OF RAIN FELL ACROSS CENTRAL MISSOURI FROM THESE STORMS
BETWEEN 2 AND 3 PM.

WORK
 &
Special weather statement, Jun 8, 3:15 PM CDT, 10 minutes before
MOZ006-009-010-011-013-014-082100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
300 PM CDT TUE JUN 8 1993

...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL
MISSOURI...
...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM...

AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST
OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SUTHWEST OF ROLLA...
AROUND FT. LEONARD WOOD.  THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND
WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM.

THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET
FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY.  STAY ALERT AND
BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED.

LARM
Special weather statement, Jun 8, 3:19 PM CDT, 6 minutes before
MOZ006-009-010-011-013-014-082100-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE COLUMBIA MO
300 PM CDT TUE JUN 8 1993

...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL
MISSOURI...
...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM...

AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST
OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SOUTHWEST OF ROLLA...
AROUND FT. LEONARD WOOD.  THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND
WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM.

THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET
FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY.  STAY ALERT AND
BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED.

LARM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 3:30 PM CDTSevere Thunderstorm WarningLSXLincoln45 min
Jun 8, 3:43 PM CDTSevere Thunderstorm WarningLSXSaint Charles47 min
Jun 8, 4:09 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin51 min
Jun 8, 4:17 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles58 min
Jun 8, 4:46 PM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis59 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1993Every severe thunderstorm warning in 1993

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.