Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 4, NWS St. Louis, MO

April 14, 1993Madison County, Missouri

NWS St. Louis, MO issued this flash flood warning at Apr 14, 1993, 6:27 PM CDT for Madison County, Missouri. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 14, 1993, 6:27 PM CDT (23:27 UTC)
Expired
Apr 14, 1993, 9:30 PM CDT
In force
3 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County Madison County, MO

The radar

The St Louis radar (KLSX), 139 km from the middle of the area, began a volume at 23:30 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, 11.5 hours before the alert went out and 152 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 1993-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 367 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, Paducah/Barkley, KY at 12:00Z on 1993-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
367 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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, Apr 14, 2:30 PM CDT, 3 hours 57 minutes before
MOZALL-150030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
230 PM CDT WED APR 14 1993

...PROBLEMS ARE AHEAD FOR AGRICULTURAL INTERESTS...
...CATTLE FARMERS AND ORCHARD GROWERS SHOULD BE AWARE OF UPCOMING
WEATHER...

A MAJOR SPRING STORM IS FORECAST TO DEVELOP OVER EASTERN MISSOURI
TONIGHT AND THURSDAY. AS IT STRENGTHENS...WINDS WILL INCREASE
SHARPLY...TEMPERATURES WILL FALL STEADILY...AND RAIN WILL CONTINUE
OVER MOST OF THE STATE.

WINDS...WILL BECOME NORTH OR NORTHWEST AT 20 TO 35 MPH AND GUSTY.
TEMPERATURES...WILL FALL ACROSS ALL BUT EXTREME EASTERN MISSOURI...
   FALLING TO 40 TO 45 BY MORNING...THEN LOWERING INTO THE 30S
   DURING THE DAY THURSDAY.
PRECIPITATION...COLD RAINS WILL CONTINUE THROUGH THURSDAY WITH
   AMOUNTS OF OVER ONE INCH COMMON. AREAS IN WHICH HEAVIER RAINS
   OCCUR WILL BE VULNERABLE TO FLOODING OF SMALLER STREAMS AND
   TRIBUTARIES.

CATTLE AND OTHER AGRICULTURAL INTERESTS SHOULD BE AWARE THAT
THE HEAVY RAINS...STRONG WINDS...AND COLD TEMPERATURS WILL PLACE
STRESS ON LIVESTOCK...ESPECIALLY YOUNG ANIMALS...EXPOSED TO THE
WEATHER ELEMENTS.  PORTIONS OF NORTHERN MISSOURI COULD EVEN HAVE
SNOW MIXED IN WITH THE RAINFALL THURSDAY NIGHT.

   ORCHARD GROWERS...

COLD TEMPERATURES WILL CONTINUE WITH OVERNIGHT LOWS THURSDAY NIGNT
FALLING TO 30 TO 35 DEGREES OVER MOST OF MISSOURI.  GROWERS IN THE
SOUTHERN THIRD OF MISSOURI REPORT BLOOMS ARE IN THE PINK STAGE AND
MAY OPEN BY THE WEEKEND.  THIS IS THE POINT AT WHICH FRUIT BLOSSOMS
ARE THE MOST VULNERABLE.  CURRENT INDICATIONS ARE THAT WINDS WILL
PROBABLY CONTINUE TO BE TOO STRONG FOR GROWERS TO TAKE ANY ACTION
AGAINST THE COLD.

LOWS THURSDAY NIGHT COULD DROP BELOW FREEZING BUT WET GROUNDS AND
WIND WILL PROBABLY KEEP TEMPERATURES FROM FALLING TO CRITICAL
TEMPERATURES OF 26 OR 27 DEGREES TOMORROW NIGHT.
PEDIGO
Special weather statement, Apr 14, 2:48 PM CDT, 3 hours 39 minutes before
MOZALL-150030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
230 PM CDT WED APR 14 1993

...PROBLEMS ARE AHEAD FOR AGRICULTURAL INTERESTS...
...CATTLE FARMERS AND ORCHARD GROWERS SHOULD BE AWARE OF UPCOMING
WEATHER...

A MAJOR SPRING STORM IS FORECAST TO DEVELOP OVER EASTERN MISSOURI
TONIGHT AND THURSDAY. AS IT STRENGTHENS...WINDS WILL INCREASE
SHARPLY...TEMPERATURES WILL FALL STEADILY...AND RAIN WILL CONTINUE
OVER MOST OF THE STATE.

WINDS...WILL BECOME NORTH OR NORTHWEST AT 20 TO 35 MPH AND GUSTY.
TEMPERATURES...WILL FALL ACROSS ALL BUT EXTREME EASTERN MISSOURI...
   FALLING TO 40 TO 45 BY MORNING...THEN LOWERING INTO THE 30S
   DURING THE DAY THURSDAY.
PRECIPITATION...COLD RAINS WILL CONTINUE THROUGH THURSDAY WITH
   AMOUNTS OF OVER ONE INCH COMMON. AREAS IN WHICH HEAVIER RAINS
   OCCUR WILL BE VULNERABLE TO FLOODING OF SMALLER STREAMS AND
   TRIBUTARIES.

CATTLE AND OTHER AGRICULTURAL INTERESTS SHOULD BE AWARE THAT
THE HEAVY RAINS...STRONG WINDS...AND COLD TEMPERATURS WILL PLACE
STRESS ON LIVESTOCK...ESPECIALLY YOUNG ANIMALS...EXPOSED TO THE
WEATHER ELEMENTS.  PORTIONS OF NORTHERN MISSOURI COULD EVEN HAVE
SNOW MIXED IN WITH THE RAINFALL THURSDAY NIGHT.

   ORCHARD GROWERS...

COLD TEMPERATURES WILL CONTINUE WITH OVERNIGHT LOWS THURSDAY NIGNT
FALLING TO 30 TO 35 DEGREES OVER MOST OF MISSOURI.  GROWERS IN THE
SOUTHERN THIRD OF MISSOURI REPORT BLOOMS ARE IN THE PINK STAGE AND
MAY OPEN BY THE WEEKEND.  THIS IS THE POINT AT WHICH FRUIT BLOSSOMS
ARE THE MOST VULNERABLE.  CURRENT INDICATIONS ARE THAT WINDS WILL
PROBABLY CONTINUE TO BE TOO STRONG FOR GROWERS TO TAKE ANY ACTION
AGAINST THE COLD.

LOWS THURSDAY NIGHT COULD DROP BELOW FREEZING BUT WET GROUNDS AND
WIND WILL PROBABLY KEEP TEMPERATURES FROM FALLING TO CRITICAL
TEMPERATURES OF 26 OR 27 DEGREES TOMORROW NIGHT.
PEDIGO
Special weather statement, Apr 14, 4:55 PM CDT, 1 hour 32 minutes before
MOZALL-150300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
455 PM CDT WED APR 14 1993

...A TORNADO WATCH HAS BEEN ISSUED FOR THE MISSOURI BOOTHEEL...

THUNDERSTORMS IN ARKANSAS ARE EXPECTED TO INTENSIFTY AND MOVE TOWARD
THE LOWER MISSISSIPPI VALLEY SOME OF THESE STORMS ARE EXPECTED TO
BECOME SEVERE AS THEY PASS THROUGH THE BOOTHEEL.  A FEW OF THE STORMS
WILL HAVE THE POTENTIAL TO PRODUCE A TORNADO.

A TORNADO WATCH IS ISSUED WHEN CONDITIONS ARE SUCH THAT TORNADOES
ARE POSSIBLE IN AND NEAR THE WATCH AREA.  STAY TUNED TO NOAA WEATHER
RADIO OR TO COMMERCIAL RADIO AND TELEVISION STATIONS.

TUCKER
Special weather statement, Apr 14, 4:57 PM CDT, 1 hour 30 minutes before
MOZALL-150300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
455 PM CDT WED APR 14 1993

...A TORNADO WATCH HAS BEEN ISSUED FOR THE MISSOURI BOOTHEEL...

THUNDERSTORMS IN ARKANSAS ARE EXPECTED TO INTENSIFTY AND MOVE TOWARD
THE LOWER MISSISSIPPI VALLEY SOME OF THESE STORMS ARE EXPECTED TO
BECOME SEVERE AS THEY PASS THROUGH THE BOOTHEEL.  A FEW OF THE STORMS
WILL HAVE THE POTENTIAL TO PRODUCE A TORNADO.

A TORNADO WATCH IS ISSUED FWHEN CONDITIONS ARE SUCH THAT TORNADOES
ARE POSSIBLE IN AND NEAR THE WATCH AREA.  STAY TUNED TO NOAA WEATHER
RADIO OR TO COMMERCIAL RADIO AND TELEVISION STATIONS.

TUCKER
Special weather statement, Apr 14, 5:30 PM CDT, 57 minutes before
MOZALL-191000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
530 PM CDT SUN APR 14 1993

...A DEVELOPING STORM MAY PRODUCE SOME SEVERE WEATHER IN MISSOURI...

A MAJOR STORM WILL CONTINUE TO DEVELOP OVER THE CENTRAL PLAINS TONIGHT
AND MOVE TOWARD THE MID MISSISSIPPI VALLEY MONDAY.  THUNDERSTORMS ARE
EXPECTED TO DEVELOP IN THE CENTRAL PLAINS TONIGHT AND MOVE INTO WESTERN
MISSOURI.  SOME OF THE STORMS COULD BECOME STRONG TO SEVERE.

THE STORM WILL BE MORE ORGANIZED ON MONDAY AND THERE WILL A BIGGER
RISK OF STRONG TO SEVERE THUNDERSTORMS...ESPECIALLY OVER THE EAST AND
SOUTHEAST PORTION OF MISSOURI DURING THE AFTERNOON.

THIS STORM WILL PULL SOME UNSEASONABLY COLD AIR INTO MISSOURI AS IT
MOVES TOWARD THE GREAT LAKES.  HIGH TEMPERATURES ON TUESDAY WILL
BE IN THE UPPER 40S TO LOW 50S WITH SOME STRONG GUSTY WINDS.
TUCKER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 9:02 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson43 min

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.