Alert archive / Missouri / Flash Flood Warnings in 1990

Flash Flood Warning 8, NWS St. Louis, MO

May 16, 1990City of Saint Louis, Missouri

NWS St. Louis, MO issued this flash flood warning at May 16, 1990, 3:47 PM CDT for City of Saint Louis, Missouri. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
May 16, 1990, 3:47 PM CDT (20:47 UTC)
Expired
May 16, 1990, 11:00 PM CDT
In force
7 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County City of Saint Louis, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.8 hours before the alert went out and 217 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 1990-05-16Temperature 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 1990-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 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
NaN m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 162052
FFWSTL
ILC013-083-119-MOC071-113-183-189-510-219-170445-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
347 PM CDT WED MAY 16 1990
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 11 PM CDT THIS WEDNESDAY EVENING
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHWEST ILLINOIS
          ...CALHOUN...JERSEY...MADISON
IN EAST CENTRAL MISSOURI
          ...FRANKLIN...LINCOLN...ST CHARLES...ST LOUIS
          ...ST LOUIS CITY...WARREN
 
AT 330 PM CDT A NEARLY SOLID LINE OF SHOWERS AND THUNDERSTORMS TRAILED
WEST FROM ST LOUIS TOWARD LAKE OF THE OZARKS IN CENTRAL MISSOURI..THEN
SOUTHWEST THROUGH THE JOPLIN AREA INTO NORTHEAST OKLAHOMA. SEVERAL OF
THESE STORMS CONTAIN VERY INTENSE RAINFALL.
 
FROM LAKE OF THE OZARKS TO ST LOUIS THE STORMS ARE MOVING ALONG THE
LINE TOWARD THE ST LOUIS AREA AND OTHER COMMUNITIES IN EAST CENTRAL
MISSOURI.
 
RAINFALL AMOUNTS OF ONE TO FOUR INCHES DURING THE PAST 24 HOURS HAVE
SATURATED THE GROUND ENTIRELY.  ANY ADDITIONAL RAINS WILL RUN OFF INTO
STREAMS AND TRIBUTARIES.
 
THIS IS AN EXTREMELY DANGEROUS SITUATION.  MUCH OF THE RUNOFF FROM
THESE STORMS WILL OCCUR AFTE7R DARK.  FLASH FLOODING WILL BE COMMON
THROUGH MUCH OF THE EVENING.  MANY MANY LOW LYING AREAS AND OTHER
AREAS NOT USUALLY PRONE TO FLOODING WILL BE SUSCEPTABLE TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 11:05 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls25 min
May 15, 11:35 PM CDTSevere Thunderstorm WarningLSXPike40 min
May 15, 11:51 PM CDTSevere Thunderstorm WarningLSXLincoln54 min
May 16, 1:02 AM CDTSevere Thunderstorm WarningLSXLincoln, Warren43 min
May 16, 1:14 AM CDTSevere Thunderstorm WarningLSXSaint Charles46 min
May 16, 3:33 AM CDTSevere Thunderstorm WarningLSXJefferson27 min
May 16, 4:08 AM CDTSevere Thunderstorm WarningLSXLincoln37 min
May 16, 4:45 AM CDTFlash Flood WarningLSXLincoln, Saint Charles, Warren4 hr
May 16, 2:26 PM CDTSevere Thunderstorm WarningLSXFranklin, Warren43 min
May 16, 2:55 PM CDTSevere Thunderstorm WarningLSXSaint Charles14 min
May 16, 2:55 PM CDTSevere Thunderstorm WarningLSXSaint Louis50 min
May 16, 3:47 PM CDTFlash Flood WarningLSXSaint Charles7 hr
May 16, 3:47 PM CDTFlash Flood WarningLSXLincoln, Warren7 hr
May 16, 3:47 PM CDTFlash Flood WarningLSXFranklin, Saint Louis7 hr
May 16, 4:54 PM CDTSevere Thunderstorm WarningLSXCrawford, Phelps36 min
May 16, 4:56 PM CDTTornado WarningLSXSaint Louis22 min
May 16, 5:09 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis51 min
May 16, 5:23 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Louis52 min
May 16, 5:23 PM CDTSevere Thunderstorm WarningLSXCity of Saint Louis52 min
May 16, 5:29 PM CDTSevere Thunderstorm WarningLSXCrawford, Washington61 min
May 16, 6:07 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois53 min

Nearby

Flash Flood Warnings in Missouri, 1990Every flash flood warning in 1990

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.