Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 7, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 6, 1993, 8:52 PM CDT for Monroe County, Saint Clair County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 6, 1993, 8:52 PM CDT (01:52 UTC)
- Expired
- May 7, 1993, 12:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Saint Clair County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 1.9 hours before the alert went out and 188 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
- 495 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1641 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- -14 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 070153 FFWSTL ILC133-163-070500- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 852 PM CDT THU MAY 6 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL MIDNIGHT CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...MONROE COUNTY...ST CLAIR COUNTY BETWEEN 745 AND 845 PM...WEATHER SERVICE DOPPLER RADAR INDICATES THAT OVER 2 INCHES OF RAIN FELL OVER PARTS OF ST CLAIR COUNTY. AT 845 PM...THE SEVERE THUNDERSTORM PRODUCING THIS TORRENTIAL RAIN EXTENDED FROM 15 MILES EAST OF DOWNTOWN ST LOUIS...THROUGH THE BELLEVILLE AREA...TO JUST EAST OF WATERLOO...WHICH IS ABOUT 20 MILES SOUTHEAST OF DOWNTOWN ST LOUIS. THE SLOW EAST MOVEMENT OF THIS STORM MAKES THE THREAT OF FLASH FLOODING A VERY REAL POSSIBILITY OVER MUCH OF ST CLAIR AND MONROE COUNTIES IN ILLINOIS. THE HEAVIEST RAINFALL APPEARS TO HAVE FALLEN BETWEEN CENTERVILLE... MILLSTADT...AND COLUMBIA. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. TRUETT/GLASS
What forecasters said that day
The local office's own words before this flash flood 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, May 6, 6:15 PM CDT, 2 hours 37 minutes before
ILZ011-012-070015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 615 PM CDT THU MAY 6 1993 ...STRONG THUNDERSTORMS CONTINUE OVER SOUTH CENTRAL ILLINOIS... STRONG THUNDERSTORMS CONTINUED OVER PARTS OF SOUTH CENTRAL ILLINOIS THIS EVENING. AT 615 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STRONGEST STORMS WERE ALONG THE CLAY...MARION COUNTY LINE...OR ABOUT 10 TO 30 MILES SOUTH OF EFFINGHAM. ALTHOUGH NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS...EXTREMELY HEAVY RAINS AND SOME SMALL HAIL CAN BE EXPECTED AS THE STORMS DRIFT SOUTHEAST AT 10 TO 20 MILES AN HOUR. FROM 615 TO 7 PM...IT APPEARS THAT THE STRONGEST STORMS WILL REMAIN SOUTH OF EFFINGHAM.|..AND EAST OF SALEM. TRUETT/GLASS
Special weather statement, May 6, 7:30 PM CDT, 1 hour 22 minutes before
MOZ003-007-011-070130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 730 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN MISSOURI AND SOUTHWEST ILLINOIS UNTIL 10 PM... AT 730 PM...WEATHER SERVICE RADAR INDICATED SCATTERED THUNDERSTORMS OCCURRING THROUGHOUT EASTERN MISSOURI AND SOUTHWEST ILLINOIS. THE STORMS WERE SCATTERED ALONG THE MISSISSIPPI RIVER...FROM THE EXTREME NORTHEAST TIP OF MISSOURI....ABOUT 40 MILES NORTHWEST OF QUINCY...TO NEAR ST LOUIS. THE STRONGEST STORMS WERE OCCURRING IN THE ST LOUIS AREA...FROM ABOUT 45 MILES NORTH OF ST LOUIS...TO JUST SOUTHEAST OF ST LOUIS. IN NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS...MOST OF THE STORMS WERE NOT PARTICUALRY STRONG. CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER DEVELOPMENT THROUGHOUT MUCH OF THE BI-STATE AREA...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM. TRUETT
Special weather statement, May 6, 7:30 PM CDT, 1 hour 22 minutes before
MOZ003-007-011-070130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 730 PM CDT THU MAY 6 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN MISSOURI AND SOUTHWEST ILLINOIS UNTIL 10 PM... AT 730 PM...WEATHER SERVICE RADAR INDICATED SCATTERED THUNDERSTORMS OCCURRING THROUGHOUT EASTERN MISSOURI AND SOUTHWEST ILLINOIS. THE STORMS WERE SCATTERED ALONG THE MISSISSIPPI RIVER...FROM THE EXTREME NORTHEAST TIP OF MISSOURI....ABOUT 40 MILES NORTHWEST OF QUINCY...TO NEAR ST LOUIS. THE STRONGEST STORMS WERE OCCURRING IN THE ST LOUIS AREA...FROM ABOUT 45 MILES NORTH OF ST LOUIS...TO JUST SOUTHEAST OF ST LOUIS. IN NORTHEAST MISSOURI AND WEST CENTRAL ILLINOIS...MOST OF THE STORMS WERE NOT PARTICUALRY STRONG. CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER DEVELOPMENT THROUGHOUT MUCH OF THE BI-STATE AREA...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM. TRUETT
Special weather statement, May 6, 8:44 PM CDT, 8 minutes before
MOZ003-007-011-012-022-023-070245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 844 PM CDT THU MAY 6 1993 ...SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED. WHILE THERE WILL BE A CHANCE OF ADDITIONAL THUNDERSTORM DEVELOPMENT OVER EASTERN MISSOURI LATER TONIGHT...THE THREAT OF SEVERE WEATHER HAS ENDED FOR THE TIME BEING. HOWEVER..A| TORNADO WATCH CONTINUES FOR WEST CENTRAL AND NORTHWEST SECTIONS OF MISSOURI UNTIL 11 PM. NOTE TO BROADCASTERS...ZONE FORECASTS ISSUED BETWEEN 9 AND 930 PM WILL REFLECT THE LATEST INFORMATION ON WATCHES. FERRY/TRUETT
Special weather statement, May 6, 8:44 PM CDT, 8 minutes before
MOZALL-070245- SPECIAL WEATHER STATEMENT...CORRECTED FOR CODING NATIONAL WEATHER SERVICE ST LOUIS MO 844 PM CDT THU MAY 6 1993 ...SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED. WHILE THERE WILL BE A CHANCE OF ADDITIONAL THUNDERSTORM DEVELOPMENT OVER EASTERN MISSOURI LATER TONIGHT...THE THREAT OF SEVERE WEATHER HAS ENDED FOR THE TIME BEING. HOWEVER..A TORNADO WATCH CONTINUES FOR WEST CENTRAL AND NORTHWEST SECTIONS OF MISSOURI UNTIL 11 PM. NOTE TO BROADCASTERS...ZONE FORECASTS ISSUED BETWEEN 9 AND 930 PM WILL REFLECT THE LATEST INFORMATION ON WATCHES. FERRY/TRUETT
Special weather statement, May 6, 8:50 PM CDT, 2 minutes before
MOZALL-070245- SPECIAL WEATHER STATEMENT...CORRECTED FOR CODING NATIONAL WEATHER SERVICE ST LOUIS MO 844 PM CDT THU MAY 6 1993 ...SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED... THE SEVERE THUNDERSTORM WATCH FOR EASTERN MISSOURI HAS BEEN CANCELLED. WHILE THERE WILL BE A CHANCE OF ADDITIONAL THUNDERSTORM DEVELOPMENT OVER EASTERN MISSOURI LATER TONIGHT...THE THREAT OF SEVERE WEATHER HAS ENDED FOR THE TIME BEING. HOWEVER..A TORNADO WATCH CONTINUES FOR WEST CENTRAL AND NORTHWEST SECTIONS OF MISSOURI UNTIL 11 PM. NOTE TO BROADCASTERS...ZONE FORECASTS ISSUED BETWEEN 9 AND 930 PM WILL REFLECT THE LATEST INFORMATION ON WATCHES. FERRY/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 45 min |
| May 6, 7:59 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 61 min |
| May 6, 9:00 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 60 min |
Nearby
Flash Flood Warnings in Illinois, 1993Every flash flood 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.