Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 23, NWS St. Louis, MO

July 2, 1993Phelps County, Missouri

NWS St. Louis, MO issued this flash flood warning at Jul 2, 1993, 5:18 PM CDT for Phelps County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 2, 1993, 5:18 PM CDT (22:18 UTC)
Expired
Jul 2, 1993, 9:15 PM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County Phelps County, MO

The radar

The St Louis radar (KLSX), 133 km from the middle of the area, began a volume at 22:22 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

Springfield, MO (KUMN), launched 12:00Z, 10.3 hours before the alert went out and 208 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, Springfield, MO at 12:00Z on 1993-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 992 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 1993-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.193958Sfc1 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
992 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
88 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 022220
FFWSTL
MOC161-030215-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
518 PM CDT FRI JUL 2 1993
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...PHELPS COUNTY
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 900 PM CDT THIS FRIDAY EVENING.
 
AT 515 PM CDT RADAR INDICATED A NARROW LINE OF VERY HEAVY THUNDERSTORMS
TRAILING FROM JUST NORTH OF ROLLA WESTWARD TO THE SOUTH END OF THE LAKE
OF THE OZARKS.
 
WEATHER SERVICE DOPPLER RADAR INDICATES THAT 1 TO 2 INCHES OF RAINFALL
HAS ALREADY OCCURRED IN NORTHERN PHELPS COUNTY. THESE STORMS WILL TRAIL
ONE ANOTHER ACROSS PHELPS COUNTY THROUGH 8 PM THIS EVENING. COPIOUS
AMOUNTS OF RAIN ARE LIKELY DURING THE NEXT FEW HOURS WITH FLASH FLOODING
LIKELY.
 
PERSONS SHOULD BE ESPECIALLY CAREFUL AS MUCH OF THE RUNOFF FROM THESE
STORMS MAY OCCUR JUST AFTER DARKNESS THIS EVENING. DO NOT DRIVE INTO
FLOWING WATER.
 
PERSONS LIVING NEAR THE GASCONADE RIVER BASIN AND ASSOCIATED TRIBUTARIES
CAN EXPECT SHARP RISES IN THE RIVERS CREEKS AND STREAMS THIS EVENING.
 
KEEP ABREAST OF LOCAL WEATHER DEVELOPMENTS. THIS IS AN ESPECIALLY
DANGEROUS SITUATION.
 
PEDIGO
 
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 RISING WATER MOVE UP TO HIGHER GROUND.
 
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.

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 2, 3:35 PM CDT, 1 hour 43 minutes before
MOZ006-009-010-011-013-014-022130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
335 PM CDT FRI JUL 2 1993

...STRONG THUNDERSTORMS WILL PRODUCE HEAVY RAIN IN THE SOUTHERN PART
OF CENTRAL MISSOURI...

AT 330 PM A SMALL CLUSTER OF THUNDERSTORMS WAS LOCATED FROM BETWEEN
JEFFERSON CITY AND ROLLA TO THE LAKE OF THE OZARKS.  THE THUNDERSTORMS
WERE MOVING TO THE EAST AT 20 MPH.  THE STRONGEST STORMS WERE LOCATED
FROM 10 MILES SOUTHEAST OF JEFFERSON CITY TO 15 MILES SOUTH OF
JEFFERSON CITY AND WERE PRODUCING VERY HEAVY RAIN.

FLASH FLOODING IS A THREAT WITH THESE THUNDERSTORMS.  BE ALERT FOR
RISING WATER AND AVOID CROSSING FLOODED ROADS.  BRIEF GUSTY WINDS
AND SMALL HAIL ARE ALSO POSSIBLE.

KENNEDY
Special weather statement, Jul 2, 3:38 PM CDT, 1 hour 40 minutes before
MOZ006-009-010-011-013-014-022130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
335 PM CDT FRI JUL 2 1993

...STRONG THUNDERSTORMS WILL PRODUCE HEAVY RAIN IN THE SOUTHERN PART
OF CENTRAL MISSOURI...

AT 330 PM A SMALL CLUSTER OF THUNDERSTORMS WAS LOCATED FROM BETWEEN
JEFFERSON CITY AND ROLLA TO THE LAKE OF THE OZARKS.  THE THUNDERSTORMS
WERE MOVING TO THE EAST AT 20 MPH.  THE STRONGEST STORMS WERE LOCATED
FROM 10 MILES SOUTHEAST OF JEFFERSON CITY TO 15 MILES SOUTH OF
JEFFERSON CITY AND WERE PRODUCING VERY HEAVY RAIN.

FLASH FLOODING IS A THREAT WITH THESE THUNDERSTORMS.  BE ALERT FOR
RISING WATER AND AVOID CROSSING FLOODED ROADS.  BRIEF GUSTY WINDS
AND SMALL HAIL ARE ALSO POSSIBLE.

KENNEDY
Special weather statement, Jul 2, 4:43 PM CDT, 35 minutes before
MOZ011-012-014-017-022245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
443 PM CDT FRI JUL 2 1993

AT 430 PM CDT...NWS DOPPLER RADAR SHOWED A STRONG THUNDERSTORM
DEVELOPING 10 MILES NORTHWEST OF SULLIVAN OR ABOUT 35 MILES NORTHEAST OF
ROLLA.

THIS STORM IS CAPABLE OF PRODUCING HEAVY RAINFALL...GUSTY WINDS...AND
SMALL HAIL.

THE STORM IS MOVING EAST AT 20 MILES AN HOUR AND WILL MOVE ACROSS THE
TOWNS OF PINEY CREEK AND ST CLAIR AND THE MERAMEC STATE PARK BETWEEN 500
AND 520 PM CDT.

OTHER THUNDERSTORMS WERE DEVELOPING OVER PARTS OF SOUTH CENTRAL MISSOURI
BETWEEN ROLLA AND 30 MILES WEST OF ROLLA.

PEOPLE OVER THE SOUTHERN PART OF FRANKLIN COUNTY SHOULD BE ALERT FOR
LATER STATEMENTS FROM THE NATIONAL WEATHER SERVICE.

PRZYBYLINSKI

&
Special weather statement, Jul 2, 4:45 PM CDT, 33 minutes before
MOZ011-012-014-017-022245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
443 PM CDT FRI JUL 2 1993

AT 430 PM CDT...NWS DOPPLER RADAR SHOWED A STRONG THUNDERSTORM
DEVELOPING 10 MILES NORTHWEST OF SULLIVAN OR ABOUT 35 MILES NORTHEAST OF
ROLLA.

THIS STORM IS CAPABLE OF PRODUCING HEAVY RAINFALL...GUSTY WINDS...AND
SMALL HAIL.

THE STORM IS MOVING EAST AT 20 MILES AN HOUR AND WILL MOVE ACROSS THE
TOWNS OF PINEY CREEK AND ST CLAIR AND THE MERAMEC STATE PARK BETWEEN 500
AND 520 PM CDT.

OTHER THUNDERSTORMS WERE DEVELOPING OVER PARTS OF SOUTH CENTRAL MISSOURI
BETWEEN ROLLA AND 30 MILES WEST OF ROLLA.

PEOPLE OVER THE SOUTHERN PART OF FRANKLIN COUNTY SHOULD BE ALERT FOR
LATER STATEMENTS FROM THE NATIONAL WEATHER SERVICE.

PRZYBYLINSKI

&
Special weather statement, Jul 2, 5:05 PM CDT, 13 minutes before
MOZALL-022300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
505 PM CDT FRI JUL 2 1993

...SEVERE THUNDERSTORM WATCH NUMBER 573 HAS BEEN ISSUED FOR MOST
OF CENTRAL MISSOURI UNTIL 11 PM...

AT 500 PM...NWS DOPPLER RADAR AND SURFACE OBSERVATION INDICATED
RAPID DEVELOPMENT OF THUNDERSTORMS OVER PARTS OF CENTRAL MISSOURI.
THEREFORE A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF
CENTRAL MISSOUIR FROM KANSAS CITY TO ST. LOUIS.

THIS WATCH IS IN EFFECT UNTIL 11 PM THIS EVENING AND INCLUDES THE
CITIES OF KANSAS CITY...ST. LOUIS...COLUMBIA...ROLLA...AND
SPRINGFIELD.

STAY TUNED TO NOAA WEATHER RADAR OR LOCAL TV BROADCASTS FOR
LATER STATEMENTS.
GOETSCH
Special weather statement, Jul 2, 5:08 PM CDT, 10 minutes before
MOZALL-022300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
505 PM CDT FRI JUL 2 1993

...SEVERE THUNDERSTORM WATCH NUMBER 573 HAS BEEN ISSUED FOR MOST
OF CENTRAL MISSOURI UNTIL 11 PM...

AT 500 PM...NWS DOPPLER RADAR AND SURFACE OBSERVATION INDICATED
RAPID DEVELOPMENT OF THUNDERSTORMS OVER PARTS OF CENTRAL MISSOURI.
THEREFORE A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF
CENTRAL MISSOUIR FROM KANSAS CITY TO ST. LOUIS.B

THIS WATCH IS IN EFFECT UNTIL 11 PM THIS EVENING AND INCLUDES THE
CITIES OF KANSAS CITY...ST. LOUIS...COLUMBIA...ROLLA...AND
SPRINGFIELD.

STAY TUNED TO NOAA WEATHER RADAR OR LOCAL TV BROADCASTS FOR
LATER STATEMENTS.
GOETSCH

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.