Alert archive / Missouri / Flash Flood Warnings in 2000

Flash Flood Warning 1, NWS St. Louis, MO

May 7, 2000Franklin County, Gasconade County, Missouri

NWS St. Louis, MO issued this flash flood warning at May 7, 2000, 12:53 AM CDT for Franklin County, Gasconade 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
May 7, 2000, 12:53 AM CDT (05:53 UTC)
Expired
May 7, 2000, 6:00 AM CDT
In force
5 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Franklin County, MO, Gasconade County, MO

The radar

The St Louis radar (KLSX), 61 km from the middle of the area, began a volume at 05:35 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, 5.9 hours before the alert went out and 278 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 2000-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 62 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 2000-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 319 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
62 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
319 m²/s²
0-3 km storm-relative helicity
371 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 070553
FFWLSX
MOC071-073-071100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1253 AM CDT SUN MAY 7 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN EAST CENTRAL MISSOURI
  GASCONADE COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 600 AM CDT

* AT 1240 AM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  CLUSTER OF THUNDERSTORMS WHICH HAVE BEEN PRODUCING VERY HEAVY RAIN
  FALL ACROSS THE HEART OF GASCONADE AND FRANKLIN COUNTIES. THOUGH
  STORMS ARE MOVING TO THE EAST THEY ARE REDEVELOPING ON THE BACK
  SIDE KEEPING HEAVY RAIN OVER THE SAME AREA.

* HEAVIEST RAIN HAS BEEN CENTERED ALONG AND 15 MILES EITHER SIDE OF
  HIGHWAY 50...INCLUDING MOUNT SERLING...DRAKE...GERALD...ROSEBUD...
  AND UNION. AN OBSERVER AT ROSEBUD...ON THE FRANKLIN AND GASCONADE
  COUNTY LINE...REPORTED 4 INCHES OF RAIN SINCE 10 PM AND STILL
  RAINING HEAVILY.

 VERY HEAVY/COPIOUS RAINFALL WILL CONTINUE FOR SOME TIME. BE VERY
CAREFUL NOT TO MOVE INTO ANY FLOWING WATER.

CAMPERS SHOULD MOVE TO HIGHER GROUND. LAW ENFORCEMENT OFFICIALS
AWARE OF ANYONE CAMPING OR BEING NEAR ANY LOW AREAS SHOULD TAKE
IMMEDIATE ACTION TO WARN THOSE OF IMPENDING DANGER.

  BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
  DANGERS OF FLOODING. IT IS VERY DIFFICULT AT NIGHT TO TELL HOW
  DEEP THE WATER MAY BE. MOTORISTS SHOULD NEVER DRIVE THROUGH WATER
  OF UNKNOWN DEPTH.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER 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. RAPIDLY RISING WATER
MAY SWEEP THE VEHICLE AND ITS OCCUPANTS AWAY.

PEDIGO/BRITT

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 2:05 AM CDTSevere Thunderstorm WarningLSXFranklin55 min
May 7, 2:23 AM CDTFlash Flood WarningLSXSaint Charles, Saint Louis5 hr
May 7, 4:22 AM CDTSevere Thunderstorm WarningLSXFranklin, Washington38 min
May 7, 4:49 AM CDTFlash Flood WarningLSXJefferson4 hr
May 7, 6:32 AM CDTFlash Flood WarningLSXFranklin, Saint Charles, Saint Louis2 hr

Nearby

Flash Flood Warnings in Missouri, 2000Every flash flood warning in 2000

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.