Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 58, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Aug 11, 1993, 11:25 PM CDT for Saint Charles County, Missouri. It was in force for 97 min.
The area
The counties it named.
The facts
- Issued
- Aug 11, 1993, 11:25 PM CDT (04:25 UTC)
- Expired
- Aug 12, 1993, 1:02 AM CDT
- In force
- 97 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Saint Charles County, MO
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 4.4 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Aug 11, 10:05 PM CDT, 1 hour 20 minutes before
MOZ010-011-120400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1005 PM CDT WED AUG 11 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR A LARGE PART OF CENTRAL MISSOURI TONIGHT... AT 1000 PM CDT WEATHER RADAR IN COLUMBIA SHOWED A BAND OF STRONG THUNDERSTORMS PRODUCING VERY HEAVY SHOWERS...ABOUT 15 MILES WIDE AND SOUTH OF A LINE FROM HIGH POINT... 20 MILES SOUTHWEST OF JEFFERSON CITY TO 10 MILES NORTH OF JEFFERSON CITY TO 10 MILES WEST OF HERMANN. THESE THUNDERSTORMS WERE MOVING TO THE EAST AROUND 25 MILES AN HOUR AND WILL PRODUCE BRIEF DOWNPOURS ALONG WITH DANGEROUS CLOUD TO GROUND LIGHTNING AS THEY MOVE INTO GASCONADE AND SOUTHERN MONTGOMERY COUNTIES OF CENTRAL MISSOURI BY 1115 PM CDT. IF YOU OBSERVE SEVERE WEATHER...TAKE SHELTER IMMEDIATELY...THEN CALL THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. DO NOT ATTEMPT TO WALK OR DRIVE THROUGH WATER OVER ROADWAYS...IF YOU SEE RISING WATER...TAKE SHELTER ON HIGHER GROUND IMMEDIATELY. LB
Special weather statement, Aug 11, 10:17 PM CDT, 1 hour 8 minutes before
MOZ010-011-120400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 1005 PM CDT WED AUG 11 1993 ...A FLASH FLOOD WATCH IS IN EFFECT FOR A LARGE PART OF CENTRAL MISSOURI TONIGHT... AT 1000 PM CDT WEATHER RADAR IN COLUMBIA SHOWED A BAND OF STRONG THUNDERSTORMS PRODUCING VERY HEAVY SHOWERS...ABOUT 15 MILES WIDE AND SOUTH OF A LINE FROM HIGH POINT... 20 MILES SOUTHWEST OF JEFFERSON CITY TO 10 MILES NORTH OF JEFFERSON CITY TO 10 MILES WEST OF HERMANN. THESE THUNDERSTORMS WERE MOVING TO THE EAST AROUND 25 MILES AN HOUR AND WILL PRODUCE BRIEF DOWNPOURS ALONG WITH DANGEROUS CLOUD TO GROUND LIGHTNING AS THEY MOVE INTO GASCONADE AND SOUTHERN MONTGOMERY COUNTIES OF CENTRAL MISSOURI BY 1115 PM CDT. IF YOU OBSERVE SEVERE WEATHER...TAKE SHELTER IMMEDIATELY...THEN CALL THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. DO NOT ATTEMPT TO WALK OR DRIVE THROUGH WATER OVER ROADWAYS...IF YOU SEE RISING WATER...TAKE SHELTER ON HIGHER GROUND IMMEDIATELY. LB
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 11:05 PM CDT | Flash Flood Warning | LSX | Franklin | 4 hr |
| Aug 12, 4:40 AM CDT | Flash Flood Warning | LSX | Franklin | 4 hr |
| Aug 12, 6:33 AM CDT | Flash Flood Warning | LSX | Crawford | 3 hr |
| Aug 12, 6:48 AM CDT | Flash Flood Warning | LSX | Jefferson, Saint Louis | 2 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.