Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 151, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 18, 1993, 7:45 PM CDT for Brown County, Illinois. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Aug 18, 1993, 7:45 PM CDT (00:45 UTC)
- Expired
- Aug 18, 1993, 8:30 PM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Brown County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 0.8 hours before the alert went out and 368 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
- 48 J/kg
- Mixed-layer CIN
- -261 J/kg
- Mixed-layer LCL
- 1767 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- -10 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 190049 SVRSTL ILC009-190130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 745 PM CDT WED AUG 18 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL ILLINOIS ...BROWN COUNTY ...AT 745 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF MT STERLING...OR ABOUT 35 MILES EAST NORTHEAST OF QUINCY. THIS STORM WAS MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. PERSONS IN THE TOWNS OF MT STERLING AND RIPLEY SHOULD REMAIN ALERT FOR THE POSSIBILITY OF SEVERE WEATHER FROM 745 PM UNTIL 830 PM CDT. 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 4RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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 18, 2:54 PM CDT, 4 hours 51 minutes before
MOZ012-ILZ011-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 251 PM CDT WED AUG 18 1993 ...STRONG THUNDERSTORMS WERE SCATTERED ACROSS EAST CENTRAL MISSOURI AND SOUTHERN ILLINOIS... AT 245 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS IN GREENE COUNTY ILLINOIS...5 MILES SOUTH OF CARROLLTON OR ABOUT 45 MILES NORTH OF DOWNTOWN ST LOUIS...5 MILES SOUTH OF EDWARDSVILLE IN MADISON COUNTY ILLINOIS...OR ABOUT 20 MILES NORTHEAST OF DOWNTOWN ST LOUIS. STRONG STORMS WERE ALSO LOCATED OVER DOWNTOWN ST LOUIS AND OVER PERRY COUNTY ILLINOIS NEAR DENMARK... OR ABOUT 55 MILES SOUTHEAST OF DOWNTOWN ST LOUIS. THESE STORMS WERE MOVING TO THE SOUTHEAST AROUND 25 MILES AN HOUR. PERSONS NEAR THE STORMS CAN EXPECT VERY HEAVY RAIN. MOTORISTS ARE URGED TO SLOW DOWN FOR THE RUSH HOUR TRAFFIC WHEN ENCOUNTERING HEAVY RAIN. USE YOUR HEADLIGHTS SO OTHER DRIVERS CAN SEE YOU BETTER.
Special weather statement, Aug 18, 6:00 PM CDT, 1 hour 45 minutes before
MOZ002-003-005-006-007-190000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 600 PM CDT WED AUG 18 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1100 PM CDT FOR NORTH CENTRAL AND NORTHEAST MISSOURI... AT 600 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ACROSS NORTHEAST MISSOURI IN CLARK AND SCOTLAND COUNTIES. THE STRONGEST STORMS WERE ABOUT 30 AND 45 MILES NORTHEAST OF KIRKSVILLE...NEAR MEMPHIS AND KAHOKA MISSOURI. THESE STORMS WERE MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. PERSONS IN THE TOWNS/CITIES OF GORIN...WINCHESTER...ANTIOCH...AND WYACONDA SHOULD BE ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS BETWEEN 600 PM AND 645 PM CDT. CITIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH ARE KIRKSVILLE...HANNIBAL...MACON AND MOBERLY.
Special weather statement, Aug 18, 6:03 PM CDT, 1 hour 42 minutes before
MOZ002-003-005-006-007-190000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 600 PM CDT WED AUG 18 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1100 PM CDT FOR NORTH CENTRAL AND NORTHEAST MISSOURI... AT 600 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ACROSS NORTHEAST MISSOURI IN CLARK AND SCOTLAND COUNTIES. THE STRONGEST STORMS WERE ABOUT 30 AND 45 MILES NORTHEAST OF KIRKSVILLE...NEAR MEMPHIS AND KAHOKA MISSOURI. THESE STORMS WERE MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. PERSONS IN THE TOWNS/CITIES OF GORIN...WINCHESTER...ANTIOCH...AND WYACONDA SHOULD BE ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS BETWEEN 600 PM AND 645 PM CDT. CITIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH ARE KIRKSVILLE...HANNIBAL...MACON AND MOBERLY.
Special weather statement, Aug 18, 6:32 PM CDT, 1 hour 13 minutes before
MOZ003-007-190030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 625 PM CDT WED AUG 18 1993 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTHEAST MISSOURI UNTIL 1100 PM CDT... AT 625 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ACROSS NORTHEAST MISSOURI IN CLARK COUNTY IN KAHOKA...OR ABOUT 45 MILES NORTHEAST OF KIRKSVILLE. AT 625 PM... THE SHERIFFS DEPARTMENT IN KAHOKA REPORTED VERY HEAVY RAIN AND STRONG WINDS. PERSONS IN KAHOKA AND THE TOWNS OF WINCHESTER... ANTIOCH AND ST PATRICK SHOULD REMAIN ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS BETWEEN 625 PM AND 715 PM CDT. THESE STORMS WERE MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR.
Special weather statement, Aug 18, 6:40 PM CDT, 1 hour 5 minutes before
MOZ007-190045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 640 PM CDT WED AUG 18 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1100 PM CDT FOR NORTHEAST MISSOURI... AT 640 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS WERE LOCATED NEAR MARCELLINE...15 MILES NORTH OF QUINCY. THIS STORM WAS MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. PERSONS IN THE TOWNS/CITIES OF LIMA...LORAINE...AND MENDON SHOULD REMAIN ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS BETWEEN 640 PM AND 730 PM CDT. THESE STORMS MAY CONTAIN VERY HEAVY RAIN...DEADLY LIGHTNING AND STRONG GUSTY WINDS. FOR YOUR PROTECTION...YOU SHOULD MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME IF THREATENING WEATHER APPROACHES.
Special weather statement, Aug 18, 6:44 PM CDT, 1 hour 1 minute before
MOZ007-190045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 640 PM CDT WED AUG 18 1993 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1100 PM CDT FOR NORTHEAST MISSOURI... AT 640 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS WERE LOCATED NEAR MARCELLINE...15 MILES NORTH OF QUINCY. THIS STORM WAS MOVING TO THE SOUTHEAST AROUND 15 MILES AN HOUR. PERSONS IN THE TOWNS/CITIES OF LIMA...LORAINE...AND MENDON SHOULD REMAIN ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS BETWEEN 640 PM AND 730 PM CDT. THESE STORMS MAY CONTAIN VERY HEAVY RAIN...DEADLY LIGHTNING AND STRONG GUSTY WINDS. FOR YOUR PROTECTION...YOU SHOULD MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME IF THREATENING WEATHER APPROACHES.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 7:10 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 65 min |
| Aug 18, 8:12 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Scott | 48 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.