Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 110, NWS St. Louis, MO

July 13, 1993Pike County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 13, 1993, 4:43 PM CDT for Pike County, Illinois. It was in force for 47 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1993, 4:43 PM CDT (21:43 UTC)
Expired
Jul 13, 1993, 5:30 PM CDT
In force
47 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Pike County, IL

The radar

The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 21:48 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

Paducah/Barkley, KY (KPAH), launched 12:00Z, 9.7 hours before the alert went out and 342 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, Paducah/Barkley, KY at 12:00Z on 1993-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Paducah/Barkley, KY at 12:00Z on 1993-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-7 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 132144
SVRSTL
ILC149-132230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
443 PM CDT TUE JUL 13 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ILLINOIS
 
   ...PIKE COUNTY
 
AT 440 PM...A LINE OF SEVERE THUNDERSTORMS WAS MOVING INTO WESTERN PIKE
COUNTY...ABOUT 15 MILES SOUTHEAST OF HANNIBAL. RADAR INDICATED THAT
WINDS WITH THESE STORMS MAY PRODUCE DAMAGE IN THE COMMUNITIES OF
BARRY...ROCKPORT AND PITTSFIELD. MOVEMENT WAS EAST AT 35 MILES AN HOUR.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
S4TRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
SHEA/RP

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, Jul 13, 3:35 PM CDT, 1 hour 8 minutes before
MOZALL-140300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
335 PM CDT TUE JUL 13 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PARTS OF CENTRAL AND SOUTHWEST MISSOURI UNTIL 10 PM CDT.  SOME OF THE
CITIES INCLUDED IN THE WATCH ARE ST LOUIS...HANNIBAL...COLUMBIA AND
SPRINGFIELD.

AT 330 PM...THUNDERSTORMS WERE OCCURRING FROM NORTHEAST INTO CENTRAL
AND SOUTHWEST MISSOURI.  THE STRONGEST STORMS WERE LOCATED OVER THE
CENTRAL PART OF THE STATE.  THE THUNDERSTORMS WERE MOVING EAST AT
25 MILES AN HOUR.

SOME OF THESE STORMS WILL BECOME SEVERE LATE THIS AFTERNOON AND THIS
EVENING.  HEAVY RAIN WILL ALSO BE POSSIBLE FROM THESE THUNDERSTORMS
WHICH MAY CAUSE FLASH FLOODING.

PEOPLE IN SOUTHWEST AND CENTRAL MISSOURI SHOULD KEEP INFORMED OF THE
LOCAL WEATHER CONDITIONS AND BE READY TO MOVE TO A SAFE PLACE
IF SEVERE WEATHER MOVES INTO YOUR AREA.

FERRY
Special weather statement, Jul 13, 3:38 PM CDT, 1 hour 5 minutes before
MOZALL-140300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
335 PM CDT TUE JUL 13 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PARTS OF CENTRAL AND SOUTHWEST MISSOURI UNTIL 10 PM CDT.  SOME OF THE
CITIES INCLUDED IN THE WATCH ARE ST LOUIS...HANNIBAL...COLUMBIA AND
SPRINGFIELD.

AT 330 PM...THUNDERSTORMS WERE OCCURRING FROM NORTHEAST INTO CENTRAL
AND SOUTHWEST MISSOURI.  THE STRONGEST STORMS WERE LOCATED OVER THE
CENTRAL PART OF THE STATE.  THE THUNDERSTORMS WERE MOVING EAST AT
25 MILES AN HOUR.

SOME OF THESE STORMS WILL BECOME SEVERE LATE THIS AFTERNOON AND THIS
EVENING.  HEAVY RAIN WILL ALSO BE POSSIBLE FROM THESE THUNDERSTORMS
WHICH MAY CAUSE FLASH FLOODING.

PEOPLE IN SOUTHWEST AND CENTRAL MISSOURI SHOULD KEEP INFORMED OF THE
LOCAL WEATHER CONDITIONS AND BE READY TO MOVE TO A SAFE PLACE
IF SEVERE WEATHER MOVES INTO YOUR AREA.

FERRY
Special weather statement, Jul 13, 3:55 PM CDT, 48 minutes before
MOZ010-011-132200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
355 PM CDT TUE JUL 13 1993

...STRONG THUNDERSTORMS WERE MOVING THROUGH CENTRAL MISSOURI...
...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10PM...

AT 350 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY
WIND AND SMALL HAIL WERE MOVING THROUGH THE COLUMBIA AREA FROM 15 MILES
NORTHEAST OF COLUMBIA TO 10 MILES SOUTHWEST OF COLUMBIA AND MOVING
SOUTHEAST AT 25 MPH.  THE STRONGEST PART OF THESE STORMS WERE MOVING
THROUGH SOUTH PARTS OF COLUMBIA WITH WIND GUSTS AROUND 30 MPH AND HEAVY
RAIN.  SMALL HAIL AND WIND GUST NEAR 45 MPH WERE REPORTED FROM THESE
STORMS IN THE HEART OF COLUMBIA.

STAY INDOORS UNTIL THESE STRONGEST STORMS PASS.  THEY WILL BE MOVING OVER
FULTON AND JEFFERSON CITY AREAS BETWEEN 4 AND 430 PM.

RAIN AND SOME THUNDERSTORMS WILL CONTINUE AFTER THESE HEAVIER STORMS.
EXPECT OCCASIONAL HEAVY RAINS AND GUSTY WIND.  STAY TUNED TO WEATHER
RADIO AND COMMERCIAL RADIO AND TELEVISION FOR UPDATES AOR POSSIBLE
WARNINGS.

LARM
Special weather statement, Jul 13, 3:57 PM CDT, 46 minutes before
MOZ010-011-132200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
355 PM CDT TUE JUL 13 1993

...STRONG THUNDERSTORMS WERE MOVING THROUGH CENTRAL MISSOURI...
...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10PM...

AT 350 PM CDT...STRONG THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY
WIND AND SMALL HAIL WERE MOVING THROUGH THE COLUMBIA AREA FROM 15 MILES
NORTHEAST OF COLUMBIA TO 10 MILES SOUTHWEST OF COLUMBIA AND MOVING
SOUTHEAST AT 25 MPH.  THE STRONGEST PART OF THESE STORMS WERE MOVING
THROUGH SOUTH PARTS OF COLUMBIA WITH WIND GUSTS AROUND 30 MPH AND HEAVY
RAIN.  SMALL HAIL AND WIND GUST NEAR 45 MPH WERE REPORTED FROM THESE
STORMS IN THE HEART OF COLUMBIA.

STAY INDOORS UNTIL THESE STRONGEST STORMS PASS.  THEY WILL BE MOVING OVER
FULTON AND JEFFERSON CITY AREAS BETWEEN 4 AND 430 PM.

RAIN AND SOME THUNDERSTORMS WILL CONTINUE AFTER THESE HEAVIER STORMS.
EXPECT OCCASIONAL HEAVY RAINS AND GUSTY WIND.  STAY TUNED TO WEADTHER
RADIO AND COMMERCIAL RADIO AND TELEVISION FOR UPDATES AOR POSSIBLE
WARNINGS.

LARM
Special weather statement, Jul 13, 4:40 PM CDT, 3 minutes before
MOZ007-011-132245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
440 PM CDT TUE JUL 13 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF EASTERN
MISSOURI AND SOUTHWEST ILLINOIS UNTIL 1000 PM CDT...

AT 435 PM...A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN WAS MOVING OUT
OF CENTRAL MISSOURI AND INTO PIKE AND LINCOLN COUNTIES OF EASTERN
MISSOURI...ABOUT 50 MILES NORTHWEST OF ST LOUIS.  AS THESE STORMS MOVE
EAST THEY WILL LIKELY PRODUCE WIND GUSTS OF 35 TO 45 MILES AN HOUR AND
VERY HEAVY RAIN.

IF YOU LIVE IN LINCOLN OR PIKE COUNTIES IN EASTERN MISSOURI...BE
PREPARED FOR GUSTY WIND.  WHEN STORMS APPROACH...TAKE COVER AT ONCE.
LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

SHEA
Special weather statement, Jul 13, 4:41 PM CDT, 2 minutes before
MOZ007-011-132245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
440 PM CDT TUE JUL 13 1993

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF EASTERN
MISSOURI AND SOUTHWEST ILLINOIS UNTIL 1000 PM CDT...

AT 435 PM...A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN WAS MOVING OUT
OF CENTRAL MISSOURI AND INTO PIKE AND LINCOLN COUNTIES OF EASTERN
MISSOURI...ABOUT 50 MILES NORTHWEST OF ST LOUIS.  AS THESE STORMS MOVE
EAST THEY WILL LIKELY PRODUCE WIND GUSTS OF 35 TO 45 MILES AN HOUR AND
VERY HEAVY RAIN.

IF YOU LIVE IN LINCOLN OR PIKE COUNTIES IN EASTERN MISSOURI...BE
PREPARED FOR GUSTY WIND.  WHEN STORMS APPROACH...TAKE COVER AT ONCE.
LISTEN FOR LATER STATEMENTS AND 2POSSIBLE WARNINGS.

SHEA

Nearby

Severe Thunderstorm Warnings in Illinois, 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.