Alert archive / Missouri / Flash Flood Warnings in 1990

Flash Flood Warning 13, NWS St. Louis, MO

June 6, 19904 counties in Missouri; Calhoun County, Jersey County, Illinois

NWS St. Louis, MO issued this flash flood warning at Jun 6, 1990, 11:15 AM CDT for 4 counties in Missouri; Calhoun County, Jersey County, Illinois. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 6, 1990, 11:15 AM CDT (16:15 UTC)
Expired: Jun 6, 1990, 2:30 PM CDT
In force: 3 hr
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Calhoun County, IL, Jersey County, IL, Franklin County, MO, Lincoln County, MO, Saint Charles County, MO, Warren County, 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, 4.3 hours before the alert went out and 274 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 154 J/kg
Mixed-layer CIN: -506 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 60 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 061619
FFWSTL
ILC005-027-145-189-013-083-119-133-163-MOC071-113-183-189-510-219-
062300-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT WED JUN 6 1990
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTH CENTRAL ILLINOIS
          ...BOND...CLINTON...PERRY...WASHINGTON
IN SOUTHWEST ILLINOIS
          ...CALHOUN...JERSEY...MADISON...MONROE...RANDOLPH...
             ST CLAIR
IN EAST CENTRAL MISSOURI
          ...FRANKLIN...JEFFERSON...LINCOLN...ST CHARLES...ST LOUIS
          ...ST LOUIS CITY...WARREN
 
TWO TO FOUR INCHES OF RAIN HAVE FALLEN OVER PORTIONS OF THE ST LOUIS
METROPOLITAN AREA SINCE 7 AM THIS MORNING.  ADDITIONAL HEAVY RAIN IS
EXPECTED THIS AFTERNOON OVER EAST CENTRAL MISSOURI AND SOUTHWEST
ILLIINOIS.
 
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 GROUNDG.
 
EISE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 10:37 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson	28 min
Jun 6, 10:54 AM CDT	Severe Thunderstorm Warning	LSX	Washington	36 min
Jun 6, 11:15 AM CDT	Flash Flood Warning	LSX	Saint Louis, City of Saint Louis	3 hr
Jun 6, 11:15 AM CDT	Flash Flood Warning	LSX	Jefferson	3 hr
Jun 6, 11:15 AM CDT	Flash Flood Warning	LSX	Clinton, Perry, Washington	7 hr
Jun 6, 11:15 AM CDT	Flash Flood Warning	LSX	Bond	7 hr
Jun 6, 11:15 AM CDT	Flash Flood Warning	LSX	Monroe, Randolph	3 hr

Nearby

Flash Flood Warnings in Missouri, 1990 Flash Flood Warnings in Illinois, 1990 Every 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.