Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 13, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 24, 1993, 7:03 PM CDT for Calhoun County, Greene County, Illinois. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Apr 24, 1993, 7:03 PM CDT (00:03 UTC)
- Expired
- Apr 24, 1993, 8:00 PM CDT
- In force
- 57 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Calhoun County, IL, Greene County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 0.1 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.
- Mixed-layer CAPE
- 158 J/kg
- Mixed-layer CIN
- -304 J/kg
- Mixed-layer LCL
- 1187 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 250010 SVRSTL ILC013-061-250100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 703 PM CDT SAT APR 24 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...NORTHERN CALHOUN COUNTY...SOUTHWESTERN GREENE COUNTY AT 700 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM OVER THE MISSISSIPPI RIVER JUST WEST OF CALHOUN COUNTY ILLINOIS...OR 40 NORTHWEST OF ST LOUIS. THE STORM WAS MOVING NORTHEAST 30 MPH. THE STORM WILL MOVING THROUGH OR NEAR THE TOWNS OF HAMBURG..MICHAEL ...ELDRED AND WOODY BY 730 PM. THE LINCOLN COUNTY MISSOURI SHERIFF REPORTED THAT THIS STORM DROPPED 1 1/4 INCH HAIL OVER THE TOWN OF DAVIS AT 620 PM. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DExADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. AM/DLF &
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, Apr 24, 5:37 PM CDT, 1 hour 26 minutes before
MOZ012-ILZ011-242330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 530 PM CDT SAT APR 24 1993 ...A STRONG THUNDERSTORM HAD DEVELOPED OVER WEST CENTRAL ILLINOIS... AT 530 PM CDT...RADAR INDICATED A STRONG THUNDERSTORM OVER JERSEY COUNTY ILLINOIS...JUST NORTHEAST OF JERSEYVILLE...OR 30 MILES NORTH OF ST LOUISTHE THUNDERSTORM WAS MOVING NORTHEAST AT 35 MILES AN HOUR. THE THUNDERSTORM WILL BE MOVING INTO THE KEMPER AREA BY 540 PM. PEOPLE BETWEEN JERSEYVILLE AND KEMPER CAN EXPECT BRIEF HEAVY RAINS...HAIL AND W DGUSTS OF AROUND 40 MILES AN HOUR FROM THIS STORM. FERRY
Special weather statement, Apr 24, 6:35 PM CDT, 28 minutes before
MOZALL-250030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 635 PM CDT SAT APR 24 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF SOUTHERN AND CENTRAL MISSOURI UNTIL MIDNIGHT... SOME OF THE CITIES INCLUDED IN THE WATCH ARE JOPLIN...SEDALIA... SPRINGFIELD...COLUMBA...JEFFERSON CITY AND ROLLA. A BAND OF THUNDERSTORMS WAS LOCATED EAST WEST ACROSS CENTRAL MISSSOURI FROM NORTH OF ST LOUIS TO SOUTH OF COLUMBIA TO NEAR SEDALIA AT 625 PM. ATMOSPHERERIC CONDITIONS ARE SUCH THAT SOME OF THE STORMS OVER CENTRAL AND SOUTHERN MISSOURI MAY INTENSIFY TO SEVERE LIMITS THIS EVENING. PEOPLE IN THE WATCH AREA SHOULD MONITOR THE WEATHER CONDITIONS CLOSELY THIS EVENING. YOU SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF A SEVERE THUNDERSTORM APPROACHES YOUR AREA OR A WARNING IS ISSUED. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. FERRY
Special weather statement, Apr 24, 6:35 PM CDT, 28 minutes before
MOZALL-250030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 635 PM CDT SAT APR 24 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF SOUTHERN AND CENTRAL MISSOURI UNTIL MIDNIGHT... SOME OF THE CITIES INCLUDED IN THE WATCH ARE JOPLIN...SEDALIA... SPRINGFIELD...COLUMBA...JEFFERSON CITY AND ROLLA. A BAND OF THUNDERSTORMS WAS LOCATED EAST WEST ACROSS CENTRAL MISSSOURI FROM NORTH OF ST LOUIS TO SOUTH OF COLUMBIA TO NEAR SEDALIA AT 625 PM. ATMOSPHERERIC CONDITIONS ARE SUCH THAT SOME OF THE STORMS OVER CENTRAL AND SOUTHERN MISSOURI MAY INTENSIFY TO SEVERE LIMITS THIS EVENING. PEOPLE IN THE WATCH AREA SHOULD MONITOR THE WEATHER CONDITIONS CLOSELY THIS EVENING. YOU SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IF A SEVERE THUNDERSTORM APPROACHES YOUR AREA OR A WARNING IS ISSUED. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. FERRY
Special weather statement, Apr 24, 6:47 PM CDT, 16 minutes before
MOZ011-012-ILZ011-250045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 647 PM CDT SAT APR 24 1993 ...THUNDERSTORMS WERE DEVELOPING RAPIDLY ACROSS CENTRAL MISSOURI AND WEST CENTRAL ILLINOIS... AT 645 PM...RADAR INDICATED A LINE OF THUNDERSTORM FROM 60 MILES NORTHWEST OF ST LOUIS TO NEAR SPRINGFIELD ILLINOIS. THE STRONGEST STORM WAS LOCATED 45 MILES NORTHWEST OF ST LOUIS IN LINCOLN COUNTY MISSOURI...OR IN THE DAVIS AREA. THE STORM IN LINCOLN COUNTY WILL PRODCUCE VERY HEAVY RAIN...HAIL AND WIND GUSTS AROUND 40 MPH. THE STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL BE IN THE ELSEBERRY AREA BY 7 PM. THE STORM WILL CROSS THE MISSISSIPPI RIVER AND MOVE THROUGH SOUTHERN CALHOUN COUNTY ILLINOIS BY 730 PM. PEOPLE IN THE PATH OF THIS STORM SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IN THE EVENT THIS STORM REACHES SEVERE LIMITS. FERRY
Special weather statement, Apr 24, 6:51 PM CDT, 12 minutes before
MOZ006-009-010-011-013-014-250045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 750 PM CDT SAT APR 24 1993 ...SEVERE THUNDERSTORM WATCH FOR CENTRAL MISSOURI UNTIL MIDNIGHT... A COUPLE OF VERY STRONG THUNDERSTORMS WERE IN CENTRAL MISSOURI AT 645 PM. THE FIRST WAS ABOUT 15 MILES EAST OF COLUMBIA NEAR KINGDOM CITY...AND THE SECOND WAS ABOUT 10 MILES NORTHWEST OF SEDALIA. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. SMALL HAIL NUMEROUS CLOUD TO GROUND LIGHTNING STRIKES...AND TORRENTIAL RAIN FELL ON A WEATHER SERVICE EMPLOYEE IN HIS CAR BETWEEN COLUMBIA AND COLUMBIA REGIONAL AIRPORT AT 615 PM. NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL MISSOURI YET TONIGHT HOWEVER THE POTENTIAL FOR IT IS GREAT. IF SEVERE WEATHER IS SPOTTED GET TO A SAFE PLACE IMMEDIATELY. GO TO THE BASEMENT OR TO THE INTERIOR ROOM OF A HOUSE...AWAY FROM WINDOWS. WHEN IT IS SAFE RELAY ANY SEVERE WEATHER REPORTS TO THE NEAREST LAW ENFORCEMENT AGENCY SO IT CAN BE PASSED ALONG TO THE NATIONAL WEATHER SERVICE. STAY TUNED TO NATIONAL WEATHER SERVICE RADIO OR COMMERCIAL BROADCASTS FOR THE LATEST STATEMENTS OR WARNINGS ACROSS CENTRAL MISSOURI TONIGHT. LA GREE
Special weather statement, Apr 24, 6:53 PM CDT, 10 minutes before
MOZ011-012-ILZ011-250045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 647 PM CDT SAT APR 24 1993 ...THUNDERSTORMS WERE DEVELOPING RAPIDLY ACROSS CENTRAL MISSOURI AND WEST CENTRAL ILLINOIS... AT 645 PM...RADAR INDICATED A LINE OF THUNDERSTORM FROM 60 MILES NORTHWEST OF ST LOUIS TO NEAR SPRINGFIELD ILLINOIS. THE STRONGEST STORM WAS LOCATED 45 MILES NORTHWEST OF ST LOUIS IN LINCOLN COUNTY MISSOURI...OR IN THE DAVIS AREA. THE STORM IN LINCOLN COUNTY WILL PRODCUCE VERY HEAVY RAIN...HAIL AND WIND GUSTS AROUND 40 MPH. THE STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL BE IN THE ELSEBERRY AREA BY 7 PM. THE STORM WILL CROSS THE MISSISSIPPI RIVER AND MOVE THROUGH SOUTHERXN CALHOUN COUNTY ILLINOIS BY 730 PM. PEOPLE IN THE PATH OF THIS STORM SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IN THE EVENT THIS STORM REACHES SEVERE LIMITS. FERRY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 10:37 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 53 min |
| Apr 25, 2:14 AM CDT | Severe Thunderstorm Warning | LSX | Perry | 31 min |
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.