Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 33, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 7, 1993, 2:03 PM CDT for Saint Charles County, Missouri. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1993, 2:03 PM CDT (19:03 UTC)
- Expired
- Jul 7, 1993, 7:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Charles County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 7.1 hours before the alert went out and 257 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
- 1291 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 701 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 47 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 071905 FFWSTL MOC183-080000- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 203 PM CDT WED JUL 7 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST CENTRAL MISSOURI ...EASTERN ST CHARLES COUNTY THE ST. CHARLES COUNTY EMERGENCY MANAGEMENT AGENCY HAS ORDERED A CONTROLLED EVACUATION OF THE CITY OF WEST ALTON...MISSOURI DUE TO IMMINENT FLOODING CONDITIONS IN THAT AREA. ALL RESIDENTS OF WEST ALTON SHOULD IMMEDIATELY VACATE THEIR DWELLINGS AND EVACUATE VIA HIGHWAY 94 TO HIGHWAY 67. REPRESENTATIVES OF THE COAST GUARD...AIR NATIONAL GUARD...THE ARMY NATIONAL GUARD...AND ST. CHARLES COUNTY EMERGENCY MANAGEMENT AGENCY WILL BE STANDING BY TO PROVIDE IMMEDIATE ASSISTANCE TO ALL WEST ALTON RESIDENTS. WATER WAS CAPPING THE LEVEE...WHILE IT WAS COMING IN HIGHWAY 94 NEAR SALLY JUST NORTH OF WEST ALTON. SCATTERED SHOWERS AND THUNDERSTORMS...WITH SOME LOCALLY HEAVY RAINFALL...WILL BE MOVING THROUGH THE AREA...THUS FLASH FLOODING CONDITIONS WILL BE OCCURRING IN THE CITY OF WEST ALTON BY 300 PM CDT. REPEATING...ALL RESIDENTS OF WEST ALTON...MISSOURI MUST BEGIN AN IMMEDIATE CONTROLLED EVACUATION OF THE CITY OF WEST ALTON...MISSOURI BY ORDER OF THE ST. CHARLES COUNTY EMERGENCY MANAGEMENT AGENCY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. METZE
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, Jul 7, 12:25 PM CDT, 1 hour 38 minutes before
MOZ007-011-012-017-071830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1225 PM CDT WED JUL 7 1993 ...THUNDERSTORMS WERE MOVING BACK INTO THE ST. LOUIS METROPOLITAN... AT 1220 PM CDT...ONE LINE OF THUNDERSTORMS EXTENDED FROM NEAR QUINCY... ILLINOIS TO 20 MILES NORTHWEST OF ST. LOUIS. ANOTHER LINE OF THUNDERSTORMS EXTENDED FROM NEAR ROLLA TO 30 MILES WEST OF ST. LOUIS. THE STORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. LOCALLY HEAVY RAIN... SOME SMALL HAIL...AND GUSTY WINDS CAN BE EXPECTED WITH THIS ACTIVITY. ALSO...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHEAST AND PORTIONS OF CENTRAL MISSOURI FOR THIS AFTERNOON. THE ST. LOUIS METROPOLITAN AREA IS NOT INCLUDED IN THIS FLASH FLOOD WATCH. IF STRONG STORMS MOVE INTO YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. FURTHERMORE...WITH THE LOCALLY HEAVY RAINFALL POSSIBLY AND WATERLOGGED GROUND...IF YOU LIVE IN FLOOD PRONE LOW LYING AREAS...TAKE SHELTER TO HIGHER GROUND. METZE WWUS40KMKC ,;
Special weather statement, Jul 7, 12:27 PM CDT, 1 hour 36 minutes before
MOZ007-011-012-017-071830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1225 PM CDT WED JUL 7 1993 ...THUNDERSTORMS WERE MOVING BACK INTO THE ST. LOUIS METROPOLITAN... AT 1220 PM CDT...ONE LINE OF THUNDERSTORMS EXTENDED FROM NEAR QUINCY... ILLINOIS TO 20 MILES NORTHWEST OF ST. LOUIS. ANOTHER LINE OF THUNDERSTORMS EXTENDED FROM NEAR ROLLA TO 30 MILES WEST OF ST. LOUIS. THE STORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. LOCALLY HEAVY RAIN... SOME SMALL HAIL...AND GUSTY WINDS CAN BE EXPECTED WITH THIS ACTIVITY. ALSO...A FLASH FLOOD WATCH IS IN EFFECT FOR NORTHEAST AND PORTIONS OF CENTRAL MISSOURI FOR THIS AFTERNOON. THE ST. LOUIS METROPOLITAN AREA IS NOT INCLUDED IN THIS FLASH FLOOD WATCH. IF STRONG STORMS MOVE INTO YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. FURTHERMORE...WITH THE LOCALLY HEAVY RAINFALL POSSIBLY AND WATERLOGGED GROUND...IF YOU LIVE IN FLOOD PRONE LOW LYING AREAS...TAKE SHELTER TO HIGHER GROUkND. METZE
Special weather statement, Jul 7, 1:10 PM CDT, 53 minutes before
MOZALL-072000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 110 PM CDT WED JUL 7 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE MUCH OF THE EASTERN HALF OF MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF THE EASTERN HALF OF MISSOURI AND PARTS OF WESTERN ILLINOIS. THIS WATCH INCLUDES THE CITIES OF COLUMBIA...ROLLA...JEFFERSON CITY... HANNIBAL...QUINCY...AND THE ST LOUIS METROPOLITAN AREA. AT 108 PM...NWS DOPPLER RADAR SHOWED THUNDERSTORMS RAPIDLY DEVELOPING ACROSS PORTIONS OF CENTRAL AND EAST CENTRAL MISSOURI. THESE STORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. AS A REMINDER...A SEVERE THUNDERSTORM WATCH MEANS CONDTIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE ARE REMINDED SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED WARNING. PEOPLE LIVING ACROSS THE EASTERN HALF OF MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR WARNINGS. GLASS
Special weather statement, Jul 7, 1:12 PM CDT, 51 minutes before
MOZALL-072000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 110 PM CDT WED JUL 7 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE MUCH OF THE EASTERN HALF OF MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF THE EASTERN HALF OF MISSOURI AND PARTS OF WESTERN ILLINOIS. THIS WATCH INCLUDES THE CITIES OF COLUMBIA...ROLLA...JEFFERSON CITY... HANNIBAL...QUINCY...AND THE ST LOUIS METROPOLITAN AREA. AT 108 PM...NWS DOPPLER RADAR SHOWED THUNDERSTORMS RAPIDLY DEVELOPING ACROSS PORTIONS OF CENTRAL AND EAST CENTRAL MISSOURI. THESE STORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. AS A REMINDER...A SEVERE THUNDERSTORM WATCH MEANS CONDTIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE ARE REMINDED SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED WARNING. PEOPLE LIVING ACROSS THE EASTERN HALF OF MISSOURI SHOULD REMAIN ALERT AND STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND OR WARNINGS. GLASS
Special weather statement, Jul 7, 1:15 PM CDT, 48 minutes before
MOZ006-009-010-011-013-014-071930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 115 PM CDT WED JUL 7 1993 ...A SEVERE THUNDERSTROM WATCH COVERS MOST OF CENTRAL MISSOURI UNTIL 7PM... ...A FLASH FLOOD WATCH IS IN EFFECT THIS AFTERNOON... AT 115 PM...STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE OVER EAST AND SOUTHERN PARTS OF CENTRAL MISSOURI AND MOVING NORTHEAST AT 35 MPH. THERE HAVE BEEN NO OTHER REPORTS OF SEVERE WEATHER FROM THESE STORMS SINCE SHORTLY PAST NOON. MOST OF THE STORMS HAVE DIMINISHED AT THIS TIME BUT SEVERE WEATHER IS STILL A POSSIBILITY AND FLASH FLOODING IS ALSO POSSIBLE. STAY TUNED TO WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION FOR FURTHER UPDATES OR POSSIBLE WARNINGS. LARM
Special weather statement, Jul 7, 1:23 PM CDT, 40 minutes before
MOZ006-009-010-011-013-014-071930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 115 PM CDT WED JUL 7 1993 ...A SEVERE THUNDERSTROM WATCH COVERS MOST OF CENTRAL MISSOURI UNTIL 7PM... ...A FLASH FLOOD WATCH IS IN EFFECT THIS AFTERNOON... AT 115 PM...STRONG THUNDERSTORMS PRODUCING VERY HEAVY RAIN WERE OVER EAST AND SOUTHERN PARTS OF CENTRAL MISSOURI AND MOVING NORTHEAST AT 35 MPH. THERE HAVE BEEN NO OTHER REPORTS OF SEVERE WEATHER FROM THESE STORMS SINCE SHORTLY PAST NOON. MOST OF THE STORMS HAVE DIMINISHED AT THIS TIME BUT SEVERE WEATHER IS STILL A POSSIBILITY AND FLASH FLOODING IS ALSO POSSIBLE. STAY TUNED TO WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION FOR FURTHER UPDATES OR POSSIBLE WARNINGS. LARM
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 10:37 PM CDT | Flash Flood Warning | LSX | Franklin | 3 hr |
| Jul 7, 12:36 AM CDT | Flash Flood Warning | LSX | Crawford | 4 hr |
| Jul 7, 9:19 AM CDT | Flash Flood Warning | LSX | Lincoln | 109 min |
| Jul 7, 1:34 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 41 min |
| Jul 7, 2:16 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 44 min |
Nearby
Flash Flood Warnings in Missouri, 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.