Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 32, NWS St. Louis, MO

August 24, 2002Reynolds County, Missouri

NWS St. Louis, MO issued this flash flood warning at Aug 24, 2002, 1:30 AM CDT for Reynolds County, Missouri. It was in force for 5 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 24, 2002, 1:30 AM CDT (06:30 UTC)
Expired
Aug 24, 2002, 6:30 AM CDT
In force
5 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

County Reynolds County, MO

The radar

The St Louis radar (KLSX), 151 km from the middle of the area, began a volume at 06:30 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

Springfield, MO (KSGF), launched 00:00Z, 6.5 hours before the alert went out and 256 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 2002-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1863 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, Springfield, MO at 00:00Z on 2002-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
1863 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1567 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 240630
FFWSTL
MOC179-241130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
125 AM CDT SAT AUG 24 2002

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 630 AM CDT

* AT 125 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED   
THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS CENTRAL AND SOUTHERN 
REYNOLDS COUNTY.  

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE   
AFFECTING THE TOWNS OF REDFORD AND ELLINGTON. CAMPERS ALONG THE 
BLACK RIVER AND SINKING CREEK SHOULD IMMEDIATELY MOVE TO HIGHER 
GROUND. 

IF FLASH FLOODING IS OBSERVED OR IMMINENT...MOVE QUICKLY TO HIGHER
GROUND. NEVER DRIVE INTO AN AREA WHERE WATER COVERS THE ROAD.

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.

RP/JP

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.