Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 54, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 31, 1993, 5:37 PM CDT for Saint Louis County, City of Saint Louis, Missouri. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1993, 5:37 PM CDT (22:37 UTC)
- Expired
- Jul 31, 1993, 7:45 PM CDT
- In force
- 2 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.6 hours before the alert went out and 225 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 131 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 312238 FFWSTL MOC189-510-010045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 537 PM CDT SAT JUL 31 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...ST LOUIS COUNTY AND THE INDEPENDENT CITY OF ...ST LOUIS CITY VERY STRONG THUNDERSTORMS MOVING THROUGH THE AREA WILL LIKELY PRODUCE FLASH FLOODING IN THE AREA WITH RAINFALL TOTALS OF ONE TO TWO INCHES. IN AREAS WHERE FLOOD PROBLEMS ARE PRESENT...BE EXTRA ALERT FOR WATER BACKUP. STREETS WILL LIKELY FLOOD AND SEWERS WILL BACK UP QUICKLY. 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. 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 RISINGf WATER MOVE UP TO HIGHER GROUND. SHEA
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 31, 3:05 PM CDT, 2 hours 32 minutes before
MOZ006-312100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 305 PM CDT SAT JUL 31 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL MISSOURI UNTIL 800 PM... AT 305 PM...STRONG THUNDERSTORMS WERE MOVING TO THE SOUTHEAST ACROSS NORTHERN PARTS OF CENTRAL MISSOURI. THE LEADING EDGE OF THE STORMS WAS FROM 20 MILES NORTH OF MARHALL...NEAR BRUNSWICK...TO 20 MILES NORTHEAST OF MOBERLY. THE STRONGEST STORMS WERE IN A LINE FROM 5 MILES NORTH OF SALISBURY TO 20 MILES NORTHEAST OF MOBERLY...NEAR SHELBINA. THESE STORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. THE TOWNS OF HIGBEE...HARRISBURG...CLARK AND CENTRALIA ARE IN THE PATH OF THESE STORMS BEFORE 400 PM. THESE STORMS COULD BECOME SEVERE AT ANY MOMENT...SO BE PREPARED FOR LARGE HAIL AND DAMAGING WINDS...ALONG WITH HEAVY RAINS AND DEADLY LIGHTNING. STAY INDOORS AND AWAY FROM WINDOWS. BE ALERT FOR FLOODED STREETS AND SMALL STREAMS. NEVER CROSS A FLOODED ROADWAY. IF YOU SPOT SEVERE WEATHER...CALL THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY OF THE INFORMATION TO THE NATIONAL WEATHER SERVICE. STANLEY
Special weather statement, Jul 31, 3:07 PM CDT, 2 hours 30 minutes before
MOZ001-002-004-005-008-009-312300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 315 PM CDT SAT JUL 31 1993 ...A NEW SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF NORTHWEST MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PARTS OF NORTHWEST MISSOURI UNTIL 1000 PM. THIS NEW WATCH AREA INCLUDES THE KANSAS CITY METRO AREA AND ST JOSEPH. CONDITIONS REMAIN FAVORABLE ACROSS THIS AREA FOR SEVERE THUNDERSTORMS AND VERY HEAVY RAIN. IF YOU LIVE IN OR CLOSE TO THE WATCH AREA... REMAIN ALERT FOR SEVERE THUNDERSTORMS WHICH PRODUCE LARGE HAIL... DAMAGING WIND AND FREQUENT LIGHTNING. IF STORMS APPROACH...MOVE TO A PLACE OF SHELTER AND LI`STEN FOR LATER UPDATES. SHEA
Special weather statement, Jul 31, 3:13 PM CDT, 2 hours 24 minutes before
MOZ006-312100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 305 PM CDT SAT JUL 31 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF CENTRAL MISSOURI UNTIL 800 PM... AT 305 PM...STRONG THUNDERSTORMS WERE MOVING TO THE SOUTHEAST ACROSS NORTHERN PARTS OF CENTRAL MISSOURI. THE LEADING EDGE OF THE STORMS WAS FROM 20 MILES NORTH OF MARHALL...NEAR BRUNSWICK...TO 20 MILES NORTHEAST OF MOBERLY. THE STRONGEST STORMS WERE IN A LINE FROM 5 MILES NORTH OF SALISBURY TO 20 MILES NORTHEAST OF MOBERLY...NEAR SHELBINA. THESE STORMS WERE MOVING SOUTHEAST AT 30 MILES AN HOUR. THE TOWNS OF HIGBEE...HARRISBURG...CLARK AND CENTRALIA ARE IN THE PATH OF THESE STORMS BEFORE 400 PM. THESE STORMS COULD BECOME SEVERE AT ANY MOMENT...SO BE PREPARED FOR LARGE HAIL AND DAMAGING WINDS...ALONG WITH HEAVY RAINS AND DEADLY LIGHTNING. STAY INDOORS AND AWAY FROM WINDOWS. BE ALERT FOR FLOODED STREETS AND SMALL STREAMS. NEVER CROSS A FLOODED ROADWAY. IF YOU SPOT SEVERE WEATHER...CALL THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY OF THE INFORMATION TO THE NATIONAL WEATHER SERVICE. STANLEY
Special weather statement, Jul 31, 3:15 PM CDT, 2 hours 22 minutes before
MOZ001-002-004-005-008-009-312300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 315 PM CDT SAT JUL 31 1993 ...A NEW SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR PARTS OF NORTHWEST MISSOURI... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PARTS OF NORTHWEST MISSOURI UNTIL 1000 PM. THIS NEW WATCH AREA INCLUDES THE KANSAS CITY METRO AREA AND ST JOSEPH. CONDITIONS REMAIN FAVORABLE ACROSS THIS AREA FOR SEVERE THUNDERSTORMS AND VERY HEAVY RAIN. IF YOU LIVE IN OR CLOSE TO THE WATCH AREA... REMAIN ALERT FOR SEVERE THUNDERSTORMS WHICH PRODUCE LARGE HAIL... DAMAGING WIND AND FREQUENT LIGHTNING. IF STORMS APPROACH...MOVE TO A PLACE OF SHELTER AND LISTEN FOR LATER UPDATES. SHEA
Special weather statement, Jul 31, 4:15 PM CDT, 1 hour 22 minutes before
MOZ012-312330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT SAT JUL 31 1993 ...STRONG WINDS ARE HEADING TOWARDS ST LOUIS... A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS MOVING OUT OF NORTHEAST MISSOURI AND TOWARDS ST LOUIS THIS AFTERNOON. THESE STORMS HAVE PRODUCED WIND DAMAGE AND GUSTS TO 60 MILES AN HOUR OVER AREAS NORTHWEST OF ST LOUIS. AS THESE STORMS MOVE SOUTHEAST...PEOPLE IN THE ST LOUIS AREA AND ESPECIALLY PEOPLE WORKING AROUND THE RIVER FLOODING SHOULD PREPARE FOR POSSIBLE SEVERE WEATHER AND STRONG WIND. THESE STORMS SHOULD ARRIVE IN THE AT LOUIS METRO AREA BETWEEN 530 AND 630 PM. ALL PEOPLE ON BOATS OR LEVEES HELPING WITH FLOOD PROBLEMS SHOULD BE ADVISED OF THESE APPROACHING STORMS AND BE READY TO FIND SHELTER. SHEA
Special weather statement, Jul 31, 4:17 PM CDT, 1 hour 20 minutes before
MOZ012-312330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT SAT JUL 31 1993 ...STRONG WINDS ARE HEADING TOWARDS ST LOUIS... A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS MOVING OUT OF NORTHEAST MISSOURI AND TOWARDS ST LOUIS THIS AFTERNOON. THESE STORMS HAVE PRODUCED WIND DAMAGE AND GUSTS TO 60 MILES AN HOUR OVER AREAS NORTHWEST OF ST LOUIS. AS THESE STORMS MOVE SOUTHEAST...PEOPLE IN THE ST LOUIS AREA AND ESPECIALLY PEOPLE WORKING AROUND THE RIVER FLOODING SHOULD PREPARE FOR POSSIBLE SEVERE WEATHER AND STRONG WIND. THESE STORMS SHOULD ARRIVE IN THE AT LOUIS METRO AREA BETWEEN 530 AND 630 PM. ALL PEOPLE ON BOATS OR LEVEES HELPING WITH FLOOD PROBLEMS SHOULD BE ADVISED OF THESE APPROACHING STORMS AND BE READY TO FIND SHELTER. SHEA
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 10:41 PM CDT | Flash Flood Warning | LSX | Saint Louis | 3 hr |
| Jul 31, 3:06 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Shelby | 54 min |
| Jul 31, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 43 min |
| Jul 31, 4:08 PM CDT | Severe Thunderstorm Warning | LSX | Audrain | 37 min |
| Jul 31, 4:14 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 46 min |
| Jul 31, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 44 min |
| Jul 31, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 43 min |
| Jul 31, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Jul 31, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 45 min |
| Jul 31, 5:20 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 40 min |
| Jul 31, 5:32 PM CDT | Tornado Warning | LSX | City of Saint Louis | 28 min |
| Jul 31, 5:53 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 52 min |
| Jul 31, 6:30 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 45 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.