Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 80, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 30, 1993, 4:58 AM CDT for Monroe County, Randolph County, Illinois. It was in force for 47 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1993, 4:58 AM CDT (09:58 UTC)
- Expired
- Jun 30, 1993, 5:45 AM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Randolph County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 10.0 hours before the alert went out and 167 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.
- Mixed-layer CAPE
- 1818 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 300958 SVRSTL ILC133-157-301045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 458 AM CDT WED JUN 30 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 545 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...SOUTHERN MONROE COUNTY...RANDOLPH COUNTY AT 455 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS DETECTING A LINE OF SEVERE THUNDERSTORMS FROM NEAR NASHVILLE IN WASHINGTON COUNTY THROUGH DESOTA IN JEFFERSON COUNTY MISSOURI. DAMAGING WINDS CAN BE EXPECTED WITH THIS LINE OF STORMS. PEOPLE IN THE TOWNS OF REDBUD ...SPARTA AND KIDD ARE IN THE PATH OF THESE STORMS AND SHOULD TAKE PRECAUTIONS IMMEDIATELY. 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 YOU4R HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. GKS
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 30, 2:26 AM CDT, 2 hours 32 minutes before
MOZ010-011-012-301100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 545 AM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR CENTRAL AND EAST CENTRAL MISSOURI...$ THE THREAT OF SEVERE THUNDERSTORMS HAS DIMINISHED ACROSS CENTRAL AND EAST CENTRAL MISSOURI...AND THE SEVERE THUNDERSTORM WATCH HAS THEREFORE BEEN CANCELLED. THE WATCH IS NO LONGER IN EFFECT FOR COLUMBIA AND THE ST LOUIS METROPOLITAN AREA.
Special weather statement, Jun 30, 2:30 AM CDT, 2 hours 28 minutes before
MOZ007-011-012-018-300730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 230 AM CDT WED JUN 30 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST ...EAST CENTRAL AND SOUTHEAST MISSOURI UNTIL 6 AM... AT 225 AM...THE ST LOUIS WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS IN NORTHEAST AND NORTH CENTRAL MISSOURI. THESE THUNDERSTORMS WERE LOCATED FROM JUST SOUTH OF QUINCY ILLINOIS TO 30 MILES NORTH OF COLUMBIA MISSOURI. THESE STORMS WERE PRODUCING HEAVY RAIN AND WIND 25 TO 35 MPH AND THEY WERE MOVING SOUTH OR SOUTHEAST 20 TO 30 MPH. THE THUNDERSTORM WATCH STILL REMAIN IN EFFECT FOR PORTIONS OF EAST CENTRAL...NORTHEAST AND SOUTHEAST MISSOURI. THUNDERSTORMS WILL BE MOVING IN THE NORTHERN PORTION OF ST LOUIS AREA AROUND 4 AM. ACQUAVIVA
Special weather statement, Jun 30, 2:57 AM CDT, 2 hours 1 minute before
MOZ006-009-010-011-300900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 300 AM CDT WED JUN 30 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF CENTRAL MISSOURI UNTIL 600 AM CDT... AT 250 AM CDT WEATHER RADAR SHOWED A BAND OF THUNDERSTORMS WITH VERY HEAVY SHOWERS OVER NORTH SECTIONS OF CENTRAL MISSOURI. THE BAND WAS ABOUT 30 MILES WIDE AND NORTH OF A LINE EXTENDING FROM 50 MILES NORTHWEST OF COLUMBIA...AROUND BRUNSWICK...TO JUST NORTH OF COLUMBIA TO 65 MILES NORTHEAST OF COLUMBIA...AROUND BOWLING GREEN. AT 245 AM CDT BOONE COUNTY OFFICIALS REPORTED WINDS GUSTING TO 25 MILES AN HOUR IN CENTRALIA...ESTIMATED 40 MPH IN HALLSVILLE...AND SOME POWER OUTAGE IN STURGEON...ALL WITHIN 25 MILES NORTH OF COLUMBIA. IF YOU OBSERVE SEVERE WEATHER...TAKE SHELTER IMMEDIATELY...THEN CALL YOUR NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR MESSAGE TO THE NATIONAL WEATHER SERVICE. EXTRA CAUTION IS URGED FOR MOTORISTS...SLOW DOWN IF YOU SEE PONDING ON ROADWAYS...IF YOU ENCOUNTER FLOODING HEAD TO HIGHER GROUND AND DO NOT ATTEMPT TO DRIVE THROUGH WATER OVER ROADWAYS. ...REMEMBER... IT IS MORE DIFFICULT TO GAUGE THE DEPTH OF WATER OVER ROADWAYS AT NIGHT. LB F
Special weather statement, Jun 30, 3:00 AM CDT, 1 hour 58 minutes before
MOZ006-009-010-011-300900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 300 AM CDT WED JUN 30 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF CENTRAL MISSOURI UNTIL 600 AM CDT... AT 250 AM CDT WEATHER RADAR SHOWED A BAND OF THUNDERSTORMS WITH VERY HEAVY SHOWERS OVER NORTH SECTIONS OF CENTRAL MISSOURI. THE BAND WAS ABOUT 30 MILES WIDE AND NORTH OF A LINE EXTENDING FROM 50 MILES NORTHWEST OF COLUMBIA...AROUND BRUNSWICK...TO JUST NORTH OF COLUMBIA TO 65 MILES NORTHEAST OF COLUMBIA...AROUND BOWLING GREEN. AT 245 AM CDT BOONE COUNTY OFFICIALS REPORTED WINDS GUSTING TO 25 MILES AN HOUR IN CENTRALIA...ESTIMATED 40 MPH IN HALLSVILLE...AND SOME POWER OUTAGE IN STURGEON...ALL WITHIN 25 MILES NORTH OF COLUMBIA. IF YOU OBSERVE SEVERE WEATHER...TAKE SHELTER IMMEDIATELY...THEN CALL YOUR NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR MESSAGE TO THE NATIONAL WEATHER SERVICE. EXTRA CAUTION IS URGED FOR MOTORISTS...SLOW DOWN IF YOU SEE PONDING ON ROADWAYS...IF YOU ENCOUNTER FLOODING HEAD TO HIGHER GROUND AND DO NOT ATTEMPT TO DRIVE THROUGH WATER OVER ROADWAYS. ...REMEMBER... IT IS MORE DIFFICULT TO GAUGE THE DEPTH OF WATER OVER ROADWAYS AT NIGHT. LB
Special weather statement, Jun 30, 3:30 AM CDT, 1 hour 28 minutes before
MOZ007-011-012-018-300900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 330 AM CDT WED JUN 30 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST EAST CENTRAL AND SOUTHEAST MISSOURI UNTIL 600 AM... AT 330 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS MOVING ACROSS SOUTHWEST ILLINOIS INTO EAST CENTRAL MISSOURI. THE LEADING EDGE OF STORMS EXTENDED FROM NEAR JERSEYVILLE ILLINOIS IN JERSEY COUNTY...OR ABOUT 30 MILES NORTH OF ST LOUIS...TO NEAR TROY IN LINCOLN COUNTY TO MONTGOMERY CITY IN MONTGOMERY COUNTY MISSOURI. THESE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 35 TO 40 MILES AN HOUR. STRONG GUSTY WINDS OF 40 TO 50 MPH MAY OCCUR WITH THESE STORMS. THUNDERSTORMS WILL BE MOVING ACROSS THE ST LOUIS METROPOLITAN AREA BETWEEN 330 AM AND 500 AM.
Special weather statement, Jun 30, 3:50 AM CDT, 1 hour 8 minutes before
MOZ007-300930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 350 AM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR NORTHEAST MISSOURI... AT 350 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS MOVING ACROSS THE ST LOUIS METROPOLITAN AREA. REPORTS OF WINDS GUSTING TO 40 TO 50 MPH HAVE BEEN RECEIVED FROM THE PUBLIC. THE THREAT OF SEVERE WEATHER HAS DIMINISHED ACROSS NORTHEAST MISSOURI...AND THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE HANNIBAL...QUINCY AREA.
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.