Alert archive / Missouri / Flash Flood Warnings in 1991
Flash Flood Warning 9, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 10, 1991, 1:41 AM CDT for Franklin County, Jefferson County, Saint Louis County, Missouri. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 10, 1991, 1:41 AM CDT (06:41 UTC)
- Expired
- Jul 10, 1991, 4:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Franklin County, MO, Jefferson County, MO, Saint Louis County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 6.7 hours before the alert went out and 231 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
- 2067 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 959 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 68 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 100644 FFWSTL MOC071-099-183-189-510-100945- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 141 AM CDT WED JUL 10 1991 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 445 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...FRANKLIN COUNTY...JEFFERSON COUNTY...ST CHARLES COUNTY ...ST LOUIS COUNTY AND THE INDEPENDENT CITY OF ...ST LOUIS CITY THUNDERSTORMS WITH VERY HEAVY RAINS HAVE BEEN MOVING ACROSS THIS AREA DURING THE LAST SEVERAL HOURS. RAINFALL FROM THESE STORMS HAS ALREADY TOTALED 3 TO 4 INCHES AT SOME LOCATIONS. SPIRIT OF ST LOUIS AIRPORT HAD RECEIVED 3.5 INCHES OF RAIN AS OF 1 AM. NEARLY TWO AND A QUATER INCHES OF RAIN HAS FALLEN AT THE NATIONAL WEATHER SERVICE OFFICE AT WELDON SPRINGS IN ST CHARLES COUNTY. RADAR INDICATED MORE THUNDERSTORMS WITH VERY HEAVY RAINS DEVELOPING OVER NORTH CENTRAL MISSOURI. THESE STORMS WILL MOVE SOUTHEAST INTO THE WARNING AREA DURING THE NEXT SEVERAL HOURS. THE ADDITIONAL RAINS FROM THESE STORMS WILL BE FALLING ON SATURATED GROUND AND WILL CAUSE RAPID RUNOFF. THIS WILL CAUSE SOME STREAMS TO QUICKLY OVERFLOW THEIR BANKS. 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. FERRY/TUCKER
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
Local storm report, Jul 9, 10:50 PM CDT, 2 hours 51 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1050 PM CDT TUE JUL 9 1991
...STORM REPORT FOR FRIDAY AFTERNOON AND EVENING...JULY 9TH...
TIME (CDT) COUNTY EVENT
435 PM RALLS CO COUNTY SHERIFF ESTIMATED 60 MPH WINDS.
MISSOURI
445 PM RALLS CO TREES DOWN NEAR NEW LONDON.
MISSOURI
455 PM RALLS CO COUNTY SHERIFF REPORTED TREES 24 INCHES
MISSOURI IN DIAMETER BLOWN DOWN. WATER 1 FOOT
DEEP ON SOME ROADS.
520 PM PIKE CO SHERIFF REPORTED DAMAGING WINDS...HAIL
MISSOURI AND HEAVY RAINS. TREES AND POWER LINES
DOWN.
UNKNOWN PIKE CO MISSOURI STATE POLICE TROOP C REPORTED
MISSOURI WINDS OVER 55 MPH AND LOTS OF POWER LINES
DOWN NEAR HIGHWARY 54.
600 PM PIKE CO SHERIFF REPORTED SIGNIFICANT WIND WEST OF
MISSOURI BOWLING GREEN. SOME MOBILE HOMES WERE
OVERTURNED AND WINDOWS WERE BLOWN OUT.
625 PM LINCOLN CO SHERIFF REPORTED A POSSIBLE FUNNEL CLOUD
MISSOURI SOUTHEAST OF NEW FLORENCE.
850 PM ST LOUIS CO HAM OPERATOR REPORTED 40-50 MPH WIND NEAR
MISSOURI GRAND AND MERIMAC IN SOUTH ST LOUIS COUNTY.
900 PM ST LOUIS CO LOCAL STREET FLOODING AT HANLEY AND BRENT-
MISSOURI WOOD AND AT MANCHESTER AND HANLEY REPORTED
BY HAM RADIO OPERATOR.
905 PM ST LOUIS CO HAM RADIO OPERATOR REPORTED SEVERAL POWER
MISSOURI LINES NEAR RICHMOND5 HEIGHTS AND MAPLEWOOD.
UNKNOWN ST LOUIS CO HAM RADIO OPERATOR REPORTED SEVERAL TREES
DOWN IN CHESTERFIELD
FERRYSpecial weather statement, Jul 9, 11:43 PM CDT, 1 hour 58 minutes before
MOZ006-010-011-100530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1140 PM CDT TUE JUL 10 1991 ...STRONG THUNDERSTORMS CONTINUE OVER EASTERN AND NORTHERN CENTRAL MISSOURI... AT 1115 PM A LINE OF STORNG THUNDERSTORMS WAS IN CENTRAL MISSOURI FROM 30 MILES NORTHWEST OF COLUMBIA TO 35 MILES NORTHEAST OF COLUMBIA. OTHER STORMS WERE SCATTERED ALONG A LINE FROM 15 MILES EAST OF COLMBIA TO 50 MILES SOUTHEAST OF COLUMBIA...JUST NORTHEAST OF HERMANN. ALL OF THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. THE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS AND EXTREMELY HEAVY RAIN AS THEY MOVE ACROSS MOBERLY...FULTON...KINGDOM CITY AND MONTGOMERY CITY BY MID@NIGHT. TAKE SHELTER INSIDE AND STAY AWAY FROM WINDOWS. FLASH FLODDING IS ALSO POSSIBLE DUE TO THE STORMS MOVING OVER SATURATED GROUND. IF FLOODING IS OBSERVED MOVE QUICKLY TO HIGHER GROUND. MORSE
Local storm report, Jul 10, 12:16 AM CDT, 1 hour 25 minutes before
LOCAL STORM REPORT...CORRECTED 6 PM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1050 PM CDT TUE JUL 9 1991
...STORM REPORT FOR FRIDAY AFTERNOON AND EVENING...JULY 9TH...
TIME (CDT) COUNTY EVENT
435 PM RALLS CO COUNTY SHERIFF ESTIMATED 60 MPH WINDS.
MISSOURI
445 PM RALLS CO TREES DOWN NEAR NEW LONDON.
MISSOURI
455 PM RALLS CO COUNTY SHERIFF REPORTED TREES 24 INCHES
MISSOURI IN DIAMETER BLOWN DOWN. WATER 1 FOOT
DEEP ON SOME ROADS.
520 PM PIKE CO SHERIFF REPORTED DAMAGING WINDS...HAIL
MISSOURI AND HEAVY RAINS. TREES AND POWER LINES
DOWN.
UNKNOWN PIKE CO MISSOURI STATE POLICE TROOP C REPORTED
MISSOURI WINDS OVER 55 MPH AND LOTS OF POWER LINES
DOWN NEAR HIGHWARY 54.
600 PM PIKE CO SHERIFF REPORTED SIGNIFICANT WIND DAMAGE
WEST MISSOURI WEST OF BOWLING GREEN. SOME MOBILE HOMES
WERE OVERTURNED AND WINDOWS WERE BLOWN OUT.
625 PM LINCOLN CO SHERIFF REPORTED A POSSIBLE FUNNEL CLOUD
MISSOURI SOUTHEAST OF NEW FLORENCE.
850 PM ST LOUIS CO HAM OPERATOR REPORTED 40-50 MPH WIND NEAR
MISSOURI GRAND AND MERIMAC IN SOUTH ST LOUIS COUNTY.
900 PM ST LOUIS CO LOCAL STREET FLOODING AT HANLEY AND BRENT-
MISSOURI WOOD AND AT MANCHESTER AND HANLEY REPORTED
BY HAM RADIO OPERATOR.
905 PM ST LOUIS CO HAM RADIO OPERATOR REPORTED SEVERAL POWER
c MISSOURI LINES NEAR RICHMOND HEIGHTS AND MAPLEWOOD.
UNKNOWN ST LOUIS CO HAM RADIO OPERATOR REPORTED SEVERAL TREES
DOWN IN CHESTERFIELD
FERRYSpecial weather statement, Jul 10, 12:34 AM CDT, 1 hour 7 minutes before
MOZ006-010-011-100615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1235 AM CDT WED JUL 10 1991 ...STRONG THUNDERSTORMS CONTINUED IN CENTRAL MISSOURI... AT 1215 AM A LINE OF STRONG THUNDERSTORMS WAS IN CENTRAL MISSOURI FROM COLUMBIA TO 30 MILES NORTHEAST OF COLUMBIA...JUST NORTHEAST OF MEXICO. THESE STORMS WERE MOVING TO THE SOUTHEAST AT 30 MILES AN HOUR. SCATTERED THUNDERSTORMS WERE IN EASTERN CENTRAL MISSOURI 25 MILES EAST OF COLUMBIA AND 30 MILES SOUTHEAST OF JEFFESON CITY. THESE STORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. THE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS...EXTREMELY HEAVY RAIN AND DANGEROUS LIGHTNING. TAKE SHELTER INSIDE AND STAY AWAY FROMv WINDOWS. FLASH FLODDING IS ALSO POSSIBLE IN EASTER SECTIONS OF MID MISSOURI. IF FLOODING IS OBSERVED MOVE QUICKLY TO HIGHER GROUND. MORSE
Special weather statement, Jul 10, 1:32 AM CDT, 9 minutes before
MOZ006-010-011-100615- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 130 AM CDT WED JUL 10 1991 ...STRONG THUNDERSTORMS CONTINUED IN CENTRAL MISSOURI... AT 115 AM STRONG THUNDERSTORMS WERE SCATTERD FROM 25 MILES SOUTH OF KIRKSVILLE TO ABOUT 30 MILES EAST OF COLUMBIA TO JUST NORTH OF JEFFERSON CITY. THE STORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. EXPECT TORRENTIAL RAIN...STRONG GUSTY WINDS...AND DANGEROUS LIGHTNING WITH THE STORMS. TAKE SHELTER INSIDE AND AWAY FROM WINDOWS. FLASH FLOODING IS ALSO POSSIBLE IN THE NORTHERN AND EASTERN PARTS OF MID MISSOURI AS THE THNDERSTORMS ARE MOVING OVER ALREADY SATURATED GROUND. IF YOU LIVE IN A LOW LYING AREA OR AN AREA PRONE TO FLOODING BE ALERT TO RAPIDLY CHANGING WEATHER COMDITIONS. IF FLOODING IS OBSERVED MOVE QUICKLY TO HIGHER GROUND. MORSE
Special weather statement, Jul 10, 1:40 AM CDT, 1 minute before
MOZ006-010-011-100715- SPECIAL WEATHER STATEMENT...CORRECTED FOR EXPIRATION TIME NATIONAL WEATHER SERVICE COLUMBIA MO 130 AM CDT WED JUL 10 1991 ...STRONG THUNDERSTORMS CONTINUED IN CENTRAL MISSOURI... AT 115 AM STRONG THUNDERSTORMS WERE SCATTERD FROM 25 MILES SOUTH OF KIRKSVILLE TO ABOUT 30 MILES EAST OF COLUMBIA TO JUST NORTH OF JEFFERSON CITY. THE STORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. EXPECT TORRENTIAL RAIN...STRONG GUSTY WINDS...AND DANGEROUS LIGHTNING WITH THE STORMS. TAKE SHELTER INSIDE AND AWAY FROM WINDOWS. FLASH FLOODING IS ALSO POSSIBLE IN THE NORTHERN AND EASTERN PARTS OF MID MISSOURI AS THE THNDERSTORMS ARE MOVING OVER ALREADY SATURATED GROUND. IF YOU LIVE IN A LOW LYING AREA OR AN AREA PRONE TO FLOODING BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. IF FLOODING IS OBSERVED MOVE QUICKLY TO HIGHER GROUND. MORSE
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 7:10 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 35 min |
| Jul 9, 8:34 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 41 min |
| Jul 10, 12:58 AM CDT | Flash Flood Warning | LSX | Warren | 3 hr |
| Jul 10, 1:03 AM CDT | Flash Flood Warning | LSX | Lincoln, Pike | 3 hr |
| Jul 10, 1:41 AM CDT | Flash Flood Warning | LSX | City of Saint Louis | 3 hr |
| Jul 10, 1:41 AM CDT | Flash Flood Warning | LSX | Saint Charles | 3 hr |
| Jul 10, 4:43 AM CDT | Flash Flood Warning | LSX | Franklin | 3 hr |
| Jul 10, 5:33 AM CDT | Flash Flood Warning | LSX | Jefferson, Saint Louis | 3 hr |
| Jul 10, 5:33 AM CDT | Flash Flood Warning | LSX | City of Saint Louis | 3 hr |
| Jul 10, 5:33 AM CDT | Flash Flood Warning | LSX | Saint Charles | 3 hr |
| Jul 10, 6:41 AM CDT | Flash Flood Warning | LSX | Lincoln | 3 hr |
Nearby
Flash Flood Warnings in Missouri, 1991Every flash flood warning in 1991
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.