Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 10, NWS St. Louis, MO

June 19, 1993Washington County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jun 19, 1993, 5:49 PM CDT for Washington County, Missouri. It was in force for 116 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1993, 5:49 PM CDT (22:49 UTC)
Expired
Jun 19, 1993, 7:45 PM CDT
In force
116 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Washington County, MO

The radar

The St Louis radar (KLSX), 84 km from the middle of the area, began a volume at 22:52 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 12:00Z, 10.8 hours before the alert went out and 216 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.

Skew-T log-pSkew-T log-p diagram, Paducah/Barkley, KY at 12:00Z on 1993-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 12:00Z on 1993-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1711 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSTL 192251
FFWSTL
MOC221-200045-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
549 PM CDT SAT JUN 19 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  745 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...SOUTHERN WASHINGTON COUNTY
 
AT 545 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A THUNDERSTORM WITH
VERY HEAVY RAIN NEAR COURTIS...40 MILES EAST OF ROLLA. RADAR INDICATED
THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN WITHIN A 1 HOUR PERIOD IN
THAT AREA. RADAR INDICATED THAT ADDITIONAL THUNDERSTORMS WITH HEAVY RAIN
WAS MOVING INTO SOUTHERN WASHINGTON COUNTY.
 
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.
 
TUCKER
b

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, Jun 19, 3:30 PM CDT, 2 hours 19 minutes before
MOZALL-192200-

SPECIAL WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
330 PM CDT SAT JUN 19 1993

...TORNADO WATCH IS CANCELLED FOR NORTHEAST MISSOURI...

AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED
SCATTERED THUNDERSTORMS IN NORTHEAST MISSOURI.  THE STRONGEST STORM
WAS NEAR FAIRMONT...OR ABOUT 35 MILES EAST NORTHEAST OF KIRKSVILLE.
THE THREAT OF SEVERE WEATHER HAS DIMINISHED ACROSS NORTHEAST MISSOURI
AND THE TORNADO WATCH HAS BEEN CANCELLED.

SCATTERED STRONG THUNDERSTORMS CONTINUED ACROSS THE ST LOUIS
METROPOLITAN AREA...WITH TORRENTIAL RAIN IN PLACES.  MOTORISTS ARE
ADVISED TO SLOW DOWN AND USE HEADLIGHTS WHEN DRIVING IN HEAVY RAIN.
Special weather statement, Jun 19, 3:30 PM CDT, 2 hours 19 minutes before
MOZALL-192200-

SPECIAL WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
330 PM CDT SAT JUN 19 1993

...TORNADO WATCH IS CANCELLED FOR NORTHEAST MISSOURI...

AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED
SCATTERED THUNDERSTORMS IN NORTHEAST MISSOURI.  THE STRONGEST STORM
WAS NEAR FAIRMONT...OR ABOUT 35 MILES EAST NORTHEAST OF KIRKSVILLE.
THE THREAT OF SEVERE WEATHER HAS DIMINISHED ACROSS NORTHEAST MISSOURI
AND THE TORNADO WATCH HAS BEEN CANCELLED.

SCATTERED STRONG THUNDERSTORMS CONTINUED ACROSS THE ST LOUIS
METROPOLITAN AREA...WITH TORRENTIAL RAIN IN PLACES.  MOTORISTS ARE
ADVISED TO SLOW DOWN AND USE HEADLIGHTS WHEN DRIVING IN HEAVY RAIN.
Special weather statement, Jun 19, 4:11 PM CDT, 1 hour 38 minutes before
MOZ018-192215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
411 PM CDT SAT JUN 19 1993

...A STRONG THUNDERSTORM WITH HEAVY RAIN WAS IN EXTREME NORTHWEST
WASHINGTON COUNTY...MISSOURI...

AT 410 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM WITH HEAVY RAIN NEAR ANTHONIES MILL...45 MILES NORTHEAST OF
ROLLA.  THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL MOVE THROUGH
NORTHERN WASHINGTON COUNTY BETWEEN 410 AND 445 PM.  THE STORM WILL PASS
NEAR RICHWOODS BETWEEN 430 AND 440 PM.  BRIEF VERY HEAVY RAIN...GUSTY
WIND AND SMALL HAIL CAN BE EXPECTED WITH THIS STORM.

TUCKER
Special weather statement, Jun 19, 4:12 PM CDT, 1 hour 37 minutes before
MOZ018-192215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
411 PM CDT SAT JUN 19 1993

...A STRONG THUNDERSTORM WITH HEAVY RAIN WAS IN EXTREME NORTHWEST
WASHINGTON COUNTY...MISSOURI...

AT 410 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM WITH HEAVY RAIN NEAR ANTHONIES MILL...45 MILES NORTHEAST OF
ROLLA.  THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL MOVE THROUGH
NORTHERN WASHINGTON COUNTY BETWEEN 410 AND 445 PM.  THE STORM WILL PASS
NEAR RICHWOODS BETWEEN 430 AND 440 PM.  BRIEF VERY HEAVY RAIN...GUSTY
WIND AND SMALL HAIL CAN BE EXPECTED WITH THIS STORM.

TUCKER
Special weather statement, Jun 19, 5:21 PM CDT, 28 minutes before
MOZ012-192330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT SAT JUN 19 1993

...A STRONG THUNDERSTORM WAS MOVING THROUGH JEFFERSON COUNTY MISSOURI...

AT 512 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM WITH GUSTY WIND 8 MILES NORTHWEST OF HILLSBORO...30 MILES
SOUTHWEST OF ST LOUIS.  THE STORM WAS MOVING EAST NORTHEAST AT 30 MPH.
BRIEF HEAVY RAIN AND WIND GUSTS GREATER THAN 40 MPH CAN BE EXPECTED IN
EASTERN JEFFERSON COUNTY BETWEEN 525 AND 555 PM.  THE STORM WILL AFFECT
EPEVELY AREA BETWEEN 530 AND 545 PM.

TUCKER
Special weather statement, Jun 19, 5:23 PM CDT, 26 minutes before
MOZ012-192330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
521 PM CDT SAT JUN 19 1993

...A STRONG THUNDERSTORM WAS MOVING THROUGH JEFFERSON COUNTY MISSOURI...

AT 512 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM WITH GUSTY WIND 8 MILES NORTHWEST OF HILLSBORO...30 MILES
SOUTHWEST OF ST LOUIS.  THE STORM WAS MOVING EAST NORTHEAST AT 30 MPH.
BRIEF HEAVY RAIN AND WIND GUSTS GREATER THAN 40 MPH CAN $BE EXPECTED IN
EASTERN JEFFERSON COUNTY BETWEEN 525 AND 555 PM.  THE STORM WILL AFFECT
EPEVELY AREA BETWEEN 530 AND 545 PM.

TUCKER

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.