Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 63, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Sep 22, 1993, 8:35 PM CDT for City of Saint Louis, Missouri. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Sep 22, 1993, 8:35 PM CDT (01:35 UTC)
- Expired
- Sep 22, 1993, 11:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County City of Saint Louis, MO
The radar
The St Louis radar (KLSX), 43 km from the middle of the area, began a volume at 01:38 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 1.6 hours before the alert went out and 217 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
- 60 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1576 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 325 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSTL 230141
FFWSTL
MOC183-219-189-510-230430-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
835 PM CDT WED SEP 22 1993
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN EAST CENTRAL MISSOURI
...ST CHARLES COUNTY...WARREN COUNTY...ST. LOUIS COUNTY AND ST. LOUIS
CITY
AT 835 PM...NATIONAL WEATHER RADAR WAS DETECTING A LINE OF THUNDERSTORMS
FROM ST. LOUIS WEST THROUGH ST. CHARLES...WARRENTON AND COLUMBIA. THESE
STORMS WERE PRODUCING VERY HEAVY RAINS. THE MARTHASVILLE FIRE DEPARTMENT
IN WARREN COUNTY REPORTED TWO FEET OF WATER IN THE STREETS. RIES ROAD
IN BALLWIN IN ST. LOUIS COUNTY WAS FLOODED. DOPPLER RADAR SHOWED BETWEEN
TWO TO THREE INCHES OF RAINFALL HAD FALLEN DURING THE LAST THREE HOURS
FROM WESTERN ST. LOUIS COUNTY WEST THROUGH WARREN COUNTY. HEAVY RAINS
WILL CONTINUE UNTIL 1100 PM TO MIDNIGHT WITH ADDITIONAL RAINFALL
AMOUNTS OF ONE TO THREE INCHES POSSIBLE.
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 FLOO,D WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
GKS/RP/TS
&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, Sep 22, 5:40 PM CDT, 2 hours 55 minutes before
MOZ007-ILZ009-230045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 540 PM CDT WED SEP 22 1993 ...STRONG THUNDERSTORMS MOVING THROUGH NORTHEAST MISSOURI... AT 540 PM...A LINE OF STRONG THUNDERSTORMS EXTENDED FROM NEAR SANTA FE IN SOUTHEAST MONROE COUNTY OR ABOUT 15 MILES NORTH OF MEXICO TO NEAR NEW LONDON IN RALLS COUNTY OR ABOUT 10 MILES SOUTH OF HANNIBAL. THE STORMS WERE MOVING TO THE EAST AT 35 MPH. THE STORMS WILL PRODUCE VERY HEAVY RAINS...FREQUENT LIGHTNING AND STRONG GUSTY WINDS. THE STORMS WILL MOVE INTO PIKE COUNTY ILLINOIS AND AFFECT THE CITIES OF NEW CANTON AND PITTSFIELD BETWEEN 545 AND 615 PM. A SEVERE THUNDERSTORM WATCH AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 900 PM FOR NORTHEAST AND CENTRAL MISSOURI. RESIDENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. BE PREPARED TO SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES. GKS
Special weather statement, Sep 22, 5:42 PM CDT, 2 hours 53 minutes before
MOZ007-ILZ009-230045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 540 PM CDT WED SEP 22 1993 ...STRONG THUNDERSTORMS MOVING THROUGH NORTHEAST MISSOURI... AT 540 PM...A LINE OF STRONG THUNDERSTORMS EXTENDED FROM NEAR SANTA FE IN SOUTHEAST MONROE COUNTY OR ABOUT 15 MILES NORTH OF MEXICO TO NEAR NEW LONDON IN RALLS COUNTY OR ABOUT 10 MILES SOUTH OF HANNIBAL. THE STORMS WERE MOVING TO THE EAST AT 35 MPH. THE STORMS WILL PRODUCE VERY HEAVY RAINS...FREQUENT LIGHTNING AND STRONG GUSTY WINDS. THE STORMS WILL MOVE INTO PIKE COUNTY ILLINOIS AND AFFECT THE CITIES OF NEW CANTON AND PITTSFIELD BETWEEN 545 AND 615 PM. A SEVERE THUNDERSTORM WATCH AND FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 900 PM FOR NORTHEAST AND CENTRAL MISSOURI. RESIDENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. BE PREPARED TO SEEK SAFE SHELTER IF THREATENING WEATHER APPROACHES. GKS D
Special weather statement, Sep 22, 7:30 PM CDT, 1 hour 5 minutes before
MOZ011-012-230230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 730 PM CDT WED SEP 22 1993 ...STRONG THUNDERSTORMS MOVING INTO THE ST. LOUIS METRO AREA... AT 730 PM...NATIONAL WEATHER SERVICE RADAR WAS DETECTING AN AREA OF STRONG THUNDERSTORMS FROM BRUSSELS IN SOUTHERN CALHOUN COUNTY THROUGH ST. CHARLES TO MARTHASVILLE IN ST. CHARLES COUNTY. THIS IS 20 MILES NORTHWEST OF DOWNTOWN ST. LOUIS. THESE STORMS WERE MOVING TO THE EAST AT 35 MPH. THESE STORMS WILL MOVE THROUGH ST. CHARLES AND ST. LOUIS COUNTIES BETWEEN 730 AND 900 PM PRODUCING VERY HEAVY RAINS...FREQUENT DEADLY LIGHTNING AND WINDS GUSTING TO 35 MPH. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 900 PM FOR MUCH OF NORTHERN AND CENTRAL MISSOURI. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR THIS AREA FOR TONIGHT. MOTORISTS IN THIS AREA SHOULD DRIVE WITH EXTREME CAUTION AS HEAVY RAINS WILL MAKE DRIVING HAZARDOUS DUE TO REDUCED VISIBILITIES AND PONDING OF WATER ON ROADS. RESIDENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS. GKS
Special weather statement, Sep 22, 7:31 PM CDT, 1 hour 4 minutes before
MOZ011-012-230230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 730 PM CDT WED SEP 22 1993 ...STRONG THUNDERSTORMS MOVING INTO THE ST. LOUIS METRO AREA... AT 730 PM...NATIONAL WEATHER SERVICE RADAR WAS DETECTING AN AREA OF STRONG THUNDERSTORMS FROM BRUSSELS IN SOUTHERN CALHOUN COUNTY THROUGH ST. CHARLES TO MARTHASVILLE IN ST. CHARLES COUNTY. THIS IS 20 MILES NORTHWEST OF DOWNTOWN ST. LOUIS. THESE STORMS WERE MOVING TO THE EAST AT 35 MPH. THESE STORMS WILL MOVE THROUGH ST. CHARLES AND ST. LOUIS COUNTIES BETWEEN 730 AND 900 PM PRODUCING VERY HEAVY RAINS...FREQUENT DEADLY LIGHTNING AND WINDS GUSTING TO 35 MPH. A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 900 PM FOR MUCH OF NORTHERN AND CENTRAL MISSOURI. A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR THIS AREA FOR TONIGHT. MOTORISTS IN THIS AREA SHOULD DRIVE WITH EXTREME CAUTION AS HEAVY RAINS WILL MAKE DRIVING HAZARDOUS DUE TO REDUCED VISIBILITIES AND PONPDING OF WATER ON ROADS. RESIDENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA SOURCES FOR FURTHER UPDATES AND POSSIBLE WARNINGS. GKS
Special weather statement, Sep 22, 7:45 PM CDT, 50 minutes before
MOZ011-012-230400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 745 PM CDT WED SEP 22 1993 ...AN URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT FOR WARREN...ST. CHARLES AND ST. LOUIS COUNTIES AS WELL AS THE CITY OF ST. LOUIS UNTIL 1100 PM... AT 745 PM...A LINE OF STRONG STORMS STRETCHES ACROSS EAST CENTRAL MISSOURI FROM WARRENTON EAST THROUGH ST. CHARLES AND ST. LOUIS. THESE STORMS WERE MOVING TO THE EAST AT 35 MPH. THESE STORMS WERE PRODUCING VERY HEAVY RAINS ACROSS THIS AREA. AS THE GROUND IS ALREADY SATURATED FROM RAINS THIS MORNING...THIS ADDITIONAL HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS. SMALL CREEKS AND STREAMS MAY RISE TO BANKFULL QUICKLY WITH THESE HEAVY DOWNPOURS. MOTORISTS SHOULD DRIVE WITH EXTREME CAUTION TONIGHT AS DRIVING WILL BE HAZARDOUS DUE TO REDUCED VISIBILITIES AND PONDING OF WATER OF ROADS. RESISENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIA SOURCES FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. DO NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. GKS
Special weather statement, Sep 22, 7:46 PM CDT, 49 minutes before
MOZ011-012-230400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 745 PM CDT WED SEP 22 1993 ...AN URBAN AND SMALL STREAM FLOOD ADVISORY IS IN EFFECT FOR WARREN...ST. CHARLES AND ST. LOUIS COUNTIES AS WELL AS THE CITY OF ST. LOUIS UNTIL 1100 PM... AT 745 PM...A LINE OF STRONG STORMS STRETCHES ACROSS EAST CENTRAL MISSOURI FROM WARRENTON EAST THROUGH ST. CHARLES AND ST. LOUIS. THESE STORMS WERE MOVING TO THE EAST AT 35 MPH. THESE STORMS WERE PRODUCING VERY HEAVY RAINS ACROSS THIS AREA. AS THE GROUND IS ALREADY SATURATED FROM RAINS THIS MORNING...THIS ADDITIONAL HEAVY RAINFALL WILL PRODUCE PONDING OF WATER ON ROADWAYS. SMALL CREEKS AND STREAMS MAY RISE TO BANKFULL QUICKLY WITH THESE HEAVY DOWNPOURS. MOTORISTS SHOULD DRIVE WITH EXTREME CAUTION TONIGHT AS DRIVING WILL BE HAZARDOUS DUE TO REDUCED VISIBILITIES AND PONDING OF WATER OF ROADS. RESISENTS SHOULD CONTINUE TO LISTEN TO NOAA WEATHER RADIO AND LOCAL MEDIvA SOURCES FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. DO NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH. GKS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 8:35 PM CDT | Flash Flood Warning | LSX | Saint Charles, Saint Louis, Warren | 3 hr |
| Sep 22, 9:25 PM CDT | Flash Flood Warning | LSX | Franklin | 3 hr |
| Sep 23, 1:19 AM CDT | Flash Flood Warning | LSX | Crawford, Saint Francois, Washington | 4 hr |
| Sep 23, 2:34 AM CDT | Flash Flood Warning | LSX | Franklin | 4 hr |
| Sep 23, 3:14 AM CDT | Flash Flood Warning | LSX | Jefferson | 4 hr |
| Sep 23, 7:41 AM CDT | Flash Flood Warning | LSX | Saint Louis, City of Saint Louis | 3 hr |
| Sep 23, 7:41 AM CDT | Flash Flood Warning | LSX | Franklin, Jefferson | 3 hr |
| Sep 23, 7:41 AM CDT | Flash Flood Warning | LSX | Saint Charles | 3 hr |
| Sep 23, 8:41 AM CDT | Flash Flood Warning | LSX | Perry, Sainte Genevieve, Saint Francois, Washington | 3 hr |
| Sep 23, 8:55 AM CDT | Flash Flood Warning | LSX | Warren | 110 min |
| Sep 23, 10:24 AM CDT | Flash Flood Warning | LSX | Crawford | 4 hr |
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; radar from the NEXRAD Level II archive.