Alert archive / Missouri / Flash Flood Warnings in 1994

Flash Flood Warning 23, NWS St. Louis, MO

April 28, 1994Crawford County, Phelps County, Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 28, 1994, 5:12 AM CDT for Crawford County, Phelps County, Missouri. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 28, 1994, 5:12 AM CDT (10:12 UTC)
Expired
Apr 28, 1994, 9:15 AM CDT
In force
4 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Crawford County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 114 km from the middle of the area, began a volume at 10:14 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 00:00Z, 10.2 hours before the alert went out and 229 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 00:00Z on 1994-04-28Temperature 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, Springfield, MO at 00:00Z on 1994-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 493 square meters per square second.19395878Sfc1 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
852 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
493 m²/s²
0-3 km storm-relative helicity
792 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 281015
FFWSTL
MOC055-161-281415-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
512 AM CDT THU APR 28 1994
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  915 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...CRAWFORD COUNTY...PHELPS COUNTY
 
NORTHERN SECTIONS OF PHELPS AND CRAWFORD COUNTIES HAVE BEEN RECEIVING
HEAVY RAIN SINCE 4 AM.
 
AT 510 AM...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THUNDERSTORMS
WITH HEAVY RAIN WERE SCATTERED FROM NEAR BOURBON...IN NORTHERN CRAWFORD
COUNTY...THROUGH THE ROLLA AREA...TO NEAR FORT LEONARD WOOD.  WITH THESE
STORMS PUSHING EAST-NORTHEAST...HEAVY RAINS WILL CONTINUE TO PASS OVER
THE SAME AREA...PRODUCING A THREAT OF FLASH FLOODING.
 
RAINFALL ESTIMATES FROM RADAR SUGGEST THAT 1 TO 2 INCHES MAY HAVE
ALREADY FALLEN OVER NORTHERN PHELPS AND NORTHERN CRAWFORD COUNTIES...AND
MORE IS O\N THE WAY.
 
MOST DEATHS IN FLASH FLOODING 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.
 
TRUETT/FERRY

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, Apr 28, 12:03 AM CDT, 5 hours 9 minutes before
MOZ053>057-066>069-077>081-088>096-101>105-280705-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1201 AM CDT THU APR 28 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHWEST MISSOURI
UNTIL 5 AM...

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WATCH FOR SOUTHWEST MISSOURI UNTIL 5 AM THIS MORNING.  SOME OF THE
CITIES INCLUDED IN THE WATCH ARE CASSVILLE..CLINTON..JOPLIN...
NEVADA...AND STOCKTON.

THE LATEST SATELLITE AND UPPER LEVEL WIND DATA SUGGESTS THAT THE
THUNDERSTORMS NOW OCCURRING OVER WESTERN MISSOURI...AS WELL AS OVER
SOUTHEAST KANSAS AND NORTHEAST OKLAHOMA...WILL BE INCREASING IN
INTENSITY DURING THE NEXT FEW HOURS.

IN ADDITION TO THE THREAT OF LARGE HAIL AND DAMAGING WINDS...REMEMBER
THAT SEVERE THUNDERSTORMS OFTEN PRODUCE HEAVY RAIN THAT CAN LEAD TO
FLASH FLOODING.  BECAUSE OF THIS THREAT...A FLASH FLOOD WATCH
REMAINS IN EFFECT FOR SOUTHWEST MISSOURI FOR THE REMAINDER OF
TONIG^HT...AND INTO THURSDAY MORNING.

PEOPLE THROUGHOUT SOUTHWEST MISSOURI ARE URGED TO FOLLOW
WEATHER DEVELOPMENTS THROUGHOUT THE NIGHT BY MONITORING NOAA
WEATHER RADIO....OR LOCAL RADIO AND TV STATIONS.

TRUETT
Special weather statement, Apr 28, 12:49 AM CDT, 4 hours 23 minutes before
MOZ024-025-032-033-039>042-045>051-055>059-068>070-280645

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MO
1245 AM CDT THU APR 28 1994

...STRONG THUNDERSTORMS WERE MOVING THROUGH THE SOUTH HALF OF CENTRAL
MISSOURI...

AT 1240 AM STRONG THUNDERSTORMS WERE SCATTERED FROM THE NORTH END
OF THE LAKE OF THE OZARKS TO JEFFERSON CITY AND THEN EAST TO
HERMANN IN GASCONADE COUNTY AND BELLE IN MARIES COUNTY.  THE STRONGEST
STORMS WERE LOCATED 35 MILES EAST AND 25 MILES SOUTHEAST OF JEFFERSON
CITY.  THESE STRONGEST STORMS MAY PRODUCE SMALL HAIL AND STRONG GUSTY
WINDS.  ALL OF THE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAIN WHICH
MAY CAUSE FLOODING OF LOW LYING AREAS IN TOWNS AND ON COUNTY ROADS.
THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH.

IF YOU LIVE IN FLOOD PRONE AREAS BE ALERT TO POSSIBLE FLOODING.  IF
YOU ARE DRIVING...SLOW DOWN WHEN CROSSING LOW BRIDGES OR LOW SPOTS
IN TOWNS.                          KENNEDY
Special weather statement, Apr 28, 1:00 AM CDT, 4 hours 12 minutes before
MOZ060>065-ILZ100>102-280800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1258 AM CDT THU APR 28 1994

...THUNDERSTORMS CONTINUE TO FORM OVER THE BI-STATE AREA...

AT 1255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED ANOTHER
ROUND OF SHOWERS AND THUNDERSTORMS ACROSS EAST CENTRAL MISSOURI. THE
STORMS EXTEND FROM 20 MILES WEST OF ST. CHARLES TO 15 MILES WEST OF
WASHINGTON.

STORMS WERE MOVING TO THE EAST TO NORTHEAST AT 35 TO 40 MPH.  THESE
STORMS WILL BRING SMALL HAIL AND ISOLATED AREAS OF HEAVY RAIN ACROSS
THE MISSOURI COUNTIES OF WARREN...FRANKLIN...JEFFERSON...ST.
CHARLES...ST. LOUIS AND ST. LOUIS CITY...AND THE ILLINOIS COUNTIES OF
MADISON...ST. CLAIR...AND MONROE. THIS ACTIVITY WILL OCCUR BETWEEN ONE
AND THREE THIS MORNING.

REMEMBER...LIGHTNING MAY STRIKE SOME MILES AWAY FROM THE PARENT
CLOUD.  PRECAUTIONS SHOULD BE TAKEN EVEN THOUGH THE THUNDERSTORM IS
NOT DIRECTLY OVERHEAD.

ST/DM
Special weather statement, Apr 28, 4:49 AM CDT, 23 minutes before
MOZ045>051-055>059-068>070-281050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLUMBIA MISSOURI
447 AM CDT THU APR 28 1994

...SEVERE THUNDERSTORM WATCH FOR THE SOUTHERN HALF OF CENTRAL MISSOURI
UNTIL 800 AM...

AT 435 AM VERY STRONG THUNDERSTORMS WERE SCATTERED IN A 10 MILE WIDE
AREA FROM NEAR ROLLA TO 50 MILES SOUTH OF SEDALIA NEAR HERMITAGE.
THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.
A SMALL TREEWAS BLOWN OVER BY ONE OF THESE THUNDERSTORMS NEAR ELKTON
IN SOUTHERN HICKORY COUNTY...AND LARGE HAIL WAS REPORTED WITH A
THUNDERSTORM EARLIER IN DALLAS COUNTY. THE THUNDERSTORMS HAD DECREASED
SOMEWHAT IN INTENSITY BUT WERE STILL CAPABLE OF PRODUCING GUSTY WINDS
AND HAIL.

IF YOU LIVE IN LINN CREEK...TUSCUMBIA OR VIENNA BE PREPARED FOR THESE
THUNDERSTORMS BETWEEN 440 AM AND 515 AM THIS MORNING

IF SEVERE THUNDERSTORMS THREATEN YOUR AREA GET TO A STRONG BUILDING
AWAY FROM WINDOWS. PASS ALONG AND SEVERE WEATHER INFORMATION TO THE
NEAREST LAW ENFORCEMENT AGENCY SO IT CAN BE RELAYED TO THE NATIONAL
WEATHER SERVICE.

LA GREE
Special weather statement, Apr 28, 5:03 AM CDT, 9 minutes before
MOZ053>057-066>069-077>081-088>096-101>105-281100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
502 AM CDT THU APR 28 1994

...SEVERE THUNDERSTORM WATCH HAS EXPIRED ACROSS EXTREME PORTIONS OF
   WEST CENTRAL AND SOUTHWEST MISSOURI...
...FLASH FLOOD WATCH CONTINUES FOR CENTRAL AND SOUTHERN MISSOURI THIS
   MORNING...

SEVERE THUNDERSTORM WATCH #162 FOR THE FOLLOWING COUNTIES OF BATES...
HENRY...ST CLAIR...VERNON...BARTON...DADE...JASPER...LAWRENCE...
NEWTON...MCDONALD...AND BARRY HAS EXPIRED AND WILL NOT BE REISSUED.

HOWEVER...A LARGE AREA OF SHOWERS AND THUNDERSTORMS COVERED MUCH OF
WEST CENTRAL AND SOUTHWEST MISSOURI AT 500 AM CDT. THESE STORMS WILL
HAVE THE POTENTIAL OF PRODUCING SMALL HAIL AND LOCALLY HEAVY RAINFALL.
THUS...FLASH FLOOD WATCHES REMAIN IN EFFECT FOR MUCH OF CENTRAL AND
SOUTHERN MISSOURI THIS MORNING.

 PEOPLE IN THE FLASH FLOOD WATCH AREA SHOULD MONITOR FLOOD
CONDITIONS...AND BE PREPARED TO MOVJE TO HIGHER GROUND...SHOULD
FLOODWATERS THREATEN.

METZE
Special weather statement, Apr 28, 5:12 AM CDT, 0 minutes before
MOZ001>115-KSZ102>105-ILZ095>102-271800-

MISSOURI SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
512 AM CDT THU APR 28 1994

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY AND THIS
EVENING FOR PARTS OF EASTERN MISSOURI.  THIS RISK IS GENERALLY EAST OF
A QUINCY...ROLLA...TO CAPE GIRARDEAU LINE...AND INCLUDES THE ENTIRE
ST LOUIS METRO AREA.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY OVER THE
REMAINDER OF MISSOURI...EZXCEPT THE EXTREME NORTHWEST CORNER.

STORM SPOTTER GROUPS AND EMERGENCY MANAGERS ARE URGED TO KEEP ADVISED
OF THE LATEST FORECAST AND WATCH INFORMATION.  SKYWARN SPOTTER ACTION
MAY BE NEEDED TODAY AND THIS EVENING.

SHEA

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 27, 7:19 PM CDTSevere Thunderstorm WarningLSXIron, Madison56 min
Apr 28, 1:23 AM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Saint Louis47 min
Apr 28, 1:58 AM CDTFlash Flood WarningLSXFranklin4 hr
Apr 28, 2:21 AM CDTFlash Flood WarningLSXSaint Charles, Saint Louis4 hr
Apr 28, 2:21 AM CDTFlash Flood WarningLSXCity of Saint Louis4 hr
Apr 28, 3:30 AM CDTFlash Flood WarningLSXFranklin5 hr
Apr 28, 5:55 AM CDTFlash Flood WarningLSXSaint Charles, Saint Louis, City of Saint Louis4 hr
Apr 28, 5:55 AM CDTFlash Flood WarningLSXFranklin4 hr
Apr 28, 6:35 AM CDTFlash Flood WarningLSXJefferson4 hr
Apr 28, 8:39 AM CDTSevere Thunderstorm WarningLSXJefferson, Saint Francois, Washington35 min
Apr 28, 11:25 AM CDTSevere Thunderstorm WarningLSXReynolds47 min
Apr 28, 12:17 PM CDTTornado WarningLSXSainte Genevieve43 min
Apr 28, 12:17 PM CDTTornado WarningLSXSaint Francois32 min

Nearby

Flash Flood Warnings in Missouri, 1994Every flash flood warning in 1994

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.