Alert archive / Missouri / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 164, NWS St. Louis, MO

September 2, 1993Lewis County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Sep 2, 1993, 5:21 PM CDT for Lewis County, Missouri. It was in force for 54 min.

The area

The counties it named.

The facts

Issued
Sep 2, 1993, 5:21 PM CDT (22:21 UTC)
Expired
Sep 2, 1993, 6:15 PM CDT
In force
54 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Lewis County, MO

The radar

The St Louis radar (KLSX), 179 km from the middle of the area, began a volume at 22:20 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

Topeka, KS (KTOP), launched 12:00Z, 10.4 hours before the alert went out and 357 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 1993-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 943 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 1993-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 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
943 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
762 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Sep 2, 2:35 PM CDT, 2 hours 46 minutes before
MOZ005>011-013-014-015-030200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
235 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR A LARGE PART OF
MISSOURI...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR
MOST OF CENTRAL AND NORTHEAST MISSOURI UNTIL 800 PM.  THIS WATCH INCLUDES
THE KANSAS CITY METRO AREA...SEDALIA...COLUMBIA...JEFFERSON CITY...
MACON AND HANNIBAL. IT DOES NOT INCLUDE QUINCY ILLINOIS.

AS A COLD FRONT EDGES INTO THE REGION...CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS OVER MUCH OF MISSOURI THIS AFTERNOON AND EVENING.
IF YOU LIVE IN OR CLOSE TO THE WATCH AREA...BE PREPARED FOR SEVERE
THUNDERSTORMS AND LISTEN FOR WARNINGS AND STATEMENTS.

SHEA
Special weather statement, Sep 2, 2:36 PM CDT, 2 hours 45 minutes before
MOZ005>011-013-014-015-030200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
235 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR A LARGE PART OF
MISSOURI...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR
MOST OF CENTRAL AND NORTHEAST MISSOURI UNTIL 800 PM.  THIS WATCH INCLUDES
THE KANSAS CITY METRO AREA...SEDALIA...COLUMBIA...JEFFERSON CITY...
MACON AND HANNIBAL. IT DOES NOT INCLUDE QUINCY ILLINOIS.

AS A COLD FRONT EDGES INTO THE REGION...CONDITIONS ARE FAVORABLE FOR
SEVERE THUNDERSTORMS OVER MUCH OF MISSOURI THIS AFTERNOON AND EVENING.
IF YOU LIVE IN OR CLOSE TO THE WATCH AREA...BE PREPARED FOR SEVERE
THUNDERSTORMS AND( LISTEN FOR WARNINGS AND STATEMENTS.

SHEA
Special weather statement, Sep 2, 3:50 PM CDT, 1 hour 31 minutes before
MOZ006-009-010-011-013-014-022200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
350 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM...

AT 345 PM...STRONG THUNDERSTORMS WERE LOCATED NORTH OF COLUMBIA AND
SOUTH OF JEFFERSON CITY.

THE STORM NORTH OF COLUMBIA WAS LOCATED BETWEEN HARRISBURG AND
HALLSVILLE AND WILL MOVE NEAR MEXICO BEFORE 430 PM.

THE STORM SOUTH OF JEFFERSON CITY EXTENDED FROM NEAR IBERIA TO LINN.
THIS STORM WAS ALSO MOVING EAST AT 25 MILES AN HOUR AND WILL AFFECT
BELLE AND OWENSVILLE BETWEEN 400 AND 430 PM.

PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER INDOORS AND
STAY AWAY FROM WINDOWS. BE PREPARED FOR DEADLY LIGHTNING...STRONG WINDS
...HEAVY RAINS AND POSSIBLY SMALL HAIL. THERE IS A CHANCE THAT THESE
STORMS COULD BECOME SEVERE AND PRODUCE LARGE HAIL AND DAMAGING WINDS.
STAY TUNED TO NWS RADIO OR COMMERCIAL RADIO AND TELEVISION FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

STANLEY
Special weather statement, Sep 2, 3:55 PM CDT, 1 hour 26 minutes before
MOZ006-009-010-011-013-014-022200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
350 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM...

AT 345 PM...STRONG THUNDERSTORMS WERE LOCATED NORTH OF COLUMBIA AND
SOUTH OF JEFFERSON CITY.

THE STORM NORTH OF COLUMBIA WAS LOCATED BETWEEN HARRISBURG AND
HALLSVILLE AND WILL MOVE NEAR MEXICO BEFORE 430 PM.

THE STORM SOUTH OF JEFFERSON CITY EXTENDED FROM NEAR IBERIA TO LINN.
THIS STORM WAS ALSO MOVING EAST AT 25 MILES AN HOUR AND WILL AFFECT
BELLE AND OWENSVILLE BETWEEN 400 AND 430 PM.

PERSONS IN THE PATH OF THESE STORMS SHOULD TAKE SHELTER INDOORS AND
STAY AWAY FROM WINDOWS. BE PREPARED FOR DEADLY LIGHTNING...STRONG WINDS
...HEAVY RAINS AND POSSIBLY SMALL HAIL. THERE IS A CHANCE THAT THESE
STORMS COULD BECOME SEVERE AND PRODUCE LARGE HAIL AND DAMAGING WINDS.
STAY TUNED TO NWS RADIO OR COMMERCIAL RADIO AND TELEVISION FOR LATER
STATEMENTS AND POS\SIBLE WARNINGS.

STANLEY
Special weather statement, Sep 2, 4:30 PM CDT, 51 minutes before
MOZ006-009-010-011-014-022230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
430 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM...
...STRONG THUNDERSTORMS WERE IN THE NORTHWEST PART OF CENTRAL
MISSOURI...

STRONG THUNDERSTORMS WERE STRETCHED ACROSS NORTHWEST PARTS OF CENTRAL
MISSOURI FROM 35 MILES WEST OF MARSHALL...AROUND LEXINGTON...TO
KIRKSVILLE. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH
AND THE INDIVIDUAL STORMS WERE MOVING EAST AT 30 MPH.

BY 530PM...THE THUNDERSTORMS WILL BE FROM MARSHALL TO 30 MILES SOUTH
OF KIRKSVILLE..AROUND MACON.  PERSONS IN THE COMMUNTITIES OF SLATER...
MARSHALL...BRUNSWICK...SALISBURY...BROOKFIELD...MARCELINE AND MACON CAN
EXPECT STRONG WINDS TO ABOUT 40 MPH AND VERY HEAVY RAIN THAT REDUCES
VISIBILITY AND MAY CAUSE STREET FLOODING..TO OCCUR BETWEEN 430 AND
530 PM.

STAY TUNDED TO WEATHER RADAIO OR COMMERCIAL RADIO AND TELEVISION FOR
UPDATES OR POSSIBLE WARNINGS.

LARM
Special weather statement, Sep 2, 4:38 PM CDT, 43 minutes before
MOZ006-009-010-011-014-022230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
430 PM CDT THU SEP 2 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM...
...STRONG THUNDERSTORMS WERE IN THE NORTHWEST PART OF CENTRAL
MISSOURI...

STRONG THUNDERSTORMS WERE STRETCHED ACROSS NORTHWEST PARTS OF CENTRAL
MISSOURI FROM 35 MILES WEST OF MARSHALL...AROUND LEXINGTON...TO
KIRKSVILLE. THE LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 20 MPH
AND THE INDIVIDUAL STORMS WERE MOVING EAST AT 30 MPH.

BY 530PM...THE THUNDERSTORMS WILL BE FROM MARSHALL TO 30 MILES SOUTH
OF KIRKSVILLE..AROUND MACON.  PERSONS IN THE COMMUNTITIES OF SLATER...
MARSHALL...BRUNSWICK...SALISBURY...BROOKFIELD...MARCELINE AND MACON CAN
EXPECT STRONG WINDS TO ABOUT 40 MPH AND VERY HEAVY RAIN THAT REDUCES
VISIBILITY AND MAY CAUSE STREET FLOODING..TO OCCUR BETWEEN 430 AND
530 PM.

STAY TUNDED TO WEATHER RADAIO OR COMMERCIAL RADIO AND TELEVISION FOR
UPDAT
ES OR POSSIBLE WARNINGS.

LARM

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 4:03 PM CDTSevere Thunderstorm WarningLSXAdair57 min
Sep 2, 4:41 PM CDTSevere Thunderstorm WarningLSXKnox64 min
Sep 2, 5:36 PM CDTSevere Thunderstorm WarningLSXShelby35 min
Sep 2, 3:53 PM CDTSevere Thunderstorm WarningLSXBond, Madison37 min
Sep 2, 5:01 PM CDTSevere Thunderstorm WarningLSXBond44 min
Sep 2, 6:22 PM CDTSevere Thunderstorm WarningLSXAdams66 min
Sep 2, 6:51 PM CDTSevere Thunderstorm WarningLSXBrown, Pike55 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.