Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 30, NWS St. Louis, MO

August 19, 2002Iron County, Reynolds County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 19, 2002, 9:23 PM CDT for Iron County, Reynolds County, Missouri. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 19, 2002, 9:23 PM CDT (02:23 UTC)
Expired
Aug 20, 2002, 12:15 AM CDT
In force
3 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Iron County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 141 km from the middle of the area, began a volume at 02:26 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 (KSGF), launched 00:00Z, 2.4 hours before the alert went out and 270 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 2002-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3042 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2002-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 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
3042 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1610 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
16 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 
WGUS53 KLSX 200223
FFWSTL
MOC093-179-200515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
919 PM CDT MON AUG 19 2002

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN IRON COUNTY IN SOUTHEAST MISSOURI
  NORTHWESTERN REYNOLDS COUNTY IN SOUTHEAST MISSOURI

* UNTIL 1215 AM CDT

* SINCE 8 PM...WEATHER SERVICE DOPPLER RADAR HAS INDICATED A 
  THUNDERSTORM PRODUCING EXTREMELY HEAVY RAIN ALONG AND JUST WEST OF 
  AN OATES...BIXBY LINE.  RAINFALL ESTIMATES FROM RADAR INDICATE THAT
  OVER 3 INCHES OF RAIN MAY HAVE FALLEN IN THIS AREA DURING THE LAST
  HOUR.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE
  AFFECTING AREAS ALONG AND WEST OF A OATES...BIXBY LINE.  
  OF SPECIAL CONCERN IS HIGHWAY KK SOUTH OF BIXBY...AND HIGHWAY J
  WEST OF OATES.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW WATER CROSSINGS IF WATER COVERS THE
ROADWAY. DO NOT DRIVE AROUND BARRICADES IF YOUR VEHICLE STALLS...
ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. ACT QUICKLY IF FLASH FLOODING IS OBSERVED. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

THOSE CAMPING NEAR SMALL STREAMS SHOULD MOVE TO HIGHER GROUND AT
ONCE. WATER LEVELS MAY RISE RAPIDLY WITH LITTLE OR NO WARNING...EVEN
IF THE HEAVY RAINS ARE WELL UPSTREAM OF YOUR CAMPSITE.

TRUETT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 9:02 PM CDTSevere Thunderstorm WarningLSX43 min
Aug 19, 9:30 PM CDTTornado WarningLSXReynolds30 min
Aug 19, 10:24 PM CDTSevere Thunderstorm WarningLSX51 min
Aug 20, 12:02 AM CDTSevere Thunderstorm WarningLSX43 min
Aug 20, 1:32 AM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Osage6 hr

Nearby

Flash Flood Warnings in Missouri, 2002Every flash flood warning in 2002

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.