Alert archive / Missouri / Flash Flood Warnings in 1993
Flash Flood Warning 35, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 8, 1993, 9:00 AM CDT for Adair County, Schuyler County, Missouri. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 8, 1993, 9:00 AM CDT (14:00 UTC)
- Expired
- Jul 8, 1993, 12:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Adair County, MO, Schuyler County, MO
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 2.0 hours before the alert went out and 302 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
- 2150 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 700 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 227 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 081404 FFWSTL MOC001-197-081700- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 900 AM CDT THU JUL 8 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL NOON CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST MISSOURI ...ADAIR COUNTY...SCHUYLER COUNTY AT 855 AM NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF THUNDERSTORMS TRAILING FROM SOUTHEAST IOWA SOUTHWEST TO JUST EAST OF KANSAS CITY. VERY HEAVY THUNDERSTORMS WERE ENTERING WESTERN PORTIONS OF BOTH ADAIR AND SCHUYLER COUNTIES. REPEAT CONVECTION IS LIKELY TO CONTINUE THROUGH 11 AM THIS MORNING. THE GROUND IS SO SATURATED THAT IT CANNOT ABSORB ANY RAINFALL...THEREFORE HEAVY RUNOFF OF RAINFALL IS LIKELY. THIS CAN CAUSE RAPID SWELLING OF CREEKS AND TRIBUTARIES AND LOCAL FLASH FLOODING. 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. PEDIGO
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 8, 5:30 AM CDT, 3 hours 30 minutes before
MOZALL-091200- MISSOURI SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 530 AM CDT THU JUL 8 1993 THUNDERSTORMS WILL BE LOCATED ACROSS MISSOURI AGAIN TODAY AND TONIGHT. THERE IS A SLIGHT CHANCE THAT SOME OF THE THUNDERSTORMS WILL BE SEVERE FOR NORTH AND CENTRAL MISSOURI - GENERALLY NORTH OF A LINE FROM NEVADA IN VERNON COUNTY TO THE LAKE OF THE OZARKS TO THE ST LOUIS AREA. STORM SPOTTER GROUPS AND EMERGENCY MANAGERS SHOULD KEEP ADVISED OF THE LATEST FORECAST FOR POSSIBLE SKYWARN ACTION.
Special weather statement, Jul 8, 5:31 AM CDT, 3 hours 29 minutes before
MOZALL-091200- MISSOURI SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 530 AM CDT THU JUL 8 1993 THUNDERSTORMS WILL BE LOCATED ACROSS MISSOURI AGAIN TODAY AND TONIGHT. THERE IS A SLIGHT CHANCE THAT SOME OF THE THUNDERSTORMS WILL BE SEVERE FOR NORTH AND CENTRAL MISSOURI - GENERALLY NORTH OF A LINE FROM NEVADA IN VERNON COUNTY TO THE LAKE OF THE OZARKS TO THE ST LOUIS AREA. STORM SPOTTER GROUPS AND EMERGENCY MANAGERS SHOULD KEEP ADVISIED OF THE LATEST FORECAST FOR POSSIBLE SKYWARN ACTION.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 12:23 AM CDT | Flash Flood Warning | LSX | Saint Charles | 7 hr |
| Jul 8, 12:40 PM CDT | Flash Flood Warning | LSX | Saint Charles | 11 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.