Alert archive / Missouri / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 98, NWS St. Louis, MO

August 1, 1994Adair County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Aug 1, 1994, 6:50 PM CDT for Adair County, Missouri. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Aug 1, 1994, 6:50 PM CDT (23:50 UTC)
Expired
Aug 1, 1994, 7:45 PM CDT
In force
55 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Adair County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.8 hours before the alert went out and 292 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, Topeka, KS at 12:00Z on 1994-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 382 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, Topeka, KS at 12:00Z on 1994-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
382 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
974 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
40 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 012355 RRA
SVRSTL
MOC001-020045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
650 PM CDT MON AUG 1 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST MISSOURI
 
   ...SOUTHERN ADAIR COUNTY
 
AT 649 PM CDT...NWS DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM 10 MILES
SOUTH OF KIRKSVILLE OVER SOUTHERN ADAIR COUNTY.
 
THE SEVERE THUNDERSTORM WAS MOVING TO THE EAST AT 15 MILES AN HOUR
AND WILL AFFECT THE TOWNS OF MILLARD AND GIBBS BETWEEN 710 AND 725 PM CD
 
THE STORM WILL CROSS HIGHWAY 63 BETWEEN 715 AND 725 PM CDT.
 
THIS STORM WILL HAVE THE CAPABILITY OF PRODUCING DAMAGING WINDS AND
HAIL.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
RP/AM

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, Aug 1, 4:58 PM CDT, 1 hour 52 minutes before
MOZ063-064-ILZ100-012300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
458 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTH ST. LOUIS...

AT 500 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG
THUNDERSTORM OVER NORTHERN ST. LOUIS COUNTY JUST EAST OF FLORISSANT.
THE STORM WAS MOVING TO THE EAST AT 15 MILES AN HOUR AND WILL CROSS
OVER NORTHERN ST. LOUIS CITY AND INTO SOUTHWEST MADISON COUNTY
ILLINOIS BY 6PM.

RESIDENTS OF NORTHERN ST LOUIS COUNTY...NORTHERN ST LOUIS CITY AND
GRANITE CITY IN MADISON COUNTY ILLINOIS SHOULD EXPECT TORRENTIAL
RAIN...STRONG GUSTY WINDS OF 30 TO 40 MILES AN HOUR AND DANGEROUS
LIGHTNING.

IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY WHEN
THE STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

MORSE
Special weather statement, Aug 1, 5:05 PM CDT, 1 hour 45 minutes before
MOZ063-064-ILZ100-012300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
458 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS WERE MOVING ACROSS NORTH ST. LOUIS...

AT 500 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A VERY STRONG
THUNDERSTORM OVER NORTHERN ST. LOUIS COUNTY JUST EAST OF FLORISSANT.
THE STORM WAS MOVING TO THE EAST AT 15 MILES AN HOUR AND WILL CROSS
OVER NORTHERN ST. LOUIS CITY AND INTO SOUTHWEST MADISON COUNTY
ILLINOIS BY 6PM.

RESIDENTS OF NORTHERN ST LOUIS COUNTY...NORTHERN ST LOUIS CITY AND
GRANITE CITY IN MADISON COUNTY ILLINOIS SHOULD EXPECT TORRENTIAL
RAIN...STRONG GUSTY WINDS OF 30 TO 40 MILES AN HOUR AND DANGEROUS
LIGHTNING.

IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY WHEN
THE STORM APPROACHES.  MOTORISTS SHOULD REMAIN ALERT FOR REDUCED
VISIBILITIES DURING DOWNPOURS OF RAIN.  STREETS MAY FLOOD QUICKLY.

MORSE
Special weather statement, Aug 1, 5:21 PM CDT, 1 hour 29 minutes before
MOZ065-073-074-012325-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTHERN WASHINGTON COUNTY...

AT 520 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN INTENSE
THUNDERSTORMS IN NORTHERN WASHINGTON COUNTY NEAR RICHWOODS...OR 45 MILES
SOUTHWEST OF ST. LOUIS.  THE COMMUNITIES OF RICHWOODS...APTUS...AND
BLISS SHOULD EXPECXT PERIODS OF VERY HEAVY RAIN...DANGEROUS
LIGHTNING...AND STRONG GUSTY WINDS OF 30 TO 40 MILES AN HOUR WITH THESE
STORMS BETWEEN 520 AND 6PM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

MORSE
Special weather statement, Aug 1, 5:27 PM CDT, 1 hour 23 minutes before
MOZ065-073-074-012325-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT MON AUG 1 1994

...STRONG THUNDERSTORMS HAVE DEVELOPED IN NORTHERN WASHINGTON COUNTY...

AT 520 PM...NATIONAL WEATHER SERVICE RADAR INDICATED AN INTENSE
THUNDERSTORMS IN NORTHERN WASHINGTON COUNTY NEAR RICHWOODS...OR 45 MILES
SOUTHWEST OF ST. LOUIS.  THE COMMUNITIES OF RICHWOODS...APTUS...AND
BLISS SHOULD EXPECXT PERIODS OF VERY HEAVY RAIN...DANGEROUS
LIGHTNING...AND STRONG GUSTY WINDS OF 30 TO 40 MILES AN HOUR WITH THESE
STORMS BETWEEN 520 AND 6PM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

MORSE
Special weather statement, Aug 1, 6:16 PM CDT, 34 minutes before
MOZ072-084-074-073-020015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CDT MON AUG 1 1994

AT 615 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SOUTHWEST
WASHINGTON COUNTY 15 MILES SOUTHWEST OF THE TOWN OF POTOSI OR
ABOUT 30 MILES WEST OF FARMINGTON.

THIS STORM WILL PRODUCE WIND GUST OF 40 TO 50 MPH...SMALL HAIL AND
TORRENTIAL RAINFALL.

THE STORM WAS MOVING TO THE SOUTHWEST AT 15 MILES AN HOUR AND WILL
AFFECT THE TOWNS OF DELBRIDGE AND COURTOIS BETWEEN 625 AND 640 PM CDT
THIS MONDAY EVENING.

PEOPLE AFFECT BY THESE STORMS ARE ADVISED TO SEEK SHELTER.

OTHER STRONG THUNDERSTORMS WERE LOCATED OVER SOUTHERN PERRY COUNTY
MISSOURI.

PRZYBYLINSKI
Special weather statement, Aug 1, 6:22 PM CDT, 28 minutes before
MOZ072-084-074-073-020015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CDT MON AUG 1 1994

AT 615 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER SOUTHWEST
WASHINGTON COUNTY 15 MILES SOUTHWEST OF THE TOWN OF POTOSI OR
ABOUT 30 MILES WEST OF FARMINGTON.

THIS STORM WILL PRODUCE WIND GUST OF 40 TO 50 MPH...SMALL HAIL AND
TORRENTIAL RAINFALL.

THE STORM WAS MOVING TO THE SOUTHWEST AT 15 MILES AN HOUR AND WILL
AFFECT THE TOWNS OF DELBRIDGE AND COURTOIS BETWEEN 625 AND 640 PM CDT
THIS MONDAY EVENING.

PEOPLE AFFECT BY THESE STORMS ARE ADVISED TO SEEK SHELTER.

OTHER STRONG THUNDERSTORMS WERE LOCATED OVER SOUTHERN PERRY COUNTY
MISSOURI.

PRZYBYLINSKI

 R

Nearby

Severe Thunderstorm Warnings in Missouri, 1994Every severe thunderstorm warning in 1994

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.