Alert archive / Missouri / Flash Flood Warnings in 1998

Flash Flood Warning 55, NWS St. Louis, MO

October 5, 1998Cole County, Moniteau County, Missouri

NWS St. Louis, MO issued this flash flood warning at Oct 5, 1998, 7:43 PM CDT for Cole County, Moniteau County, Missouri. It was in force for 8 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
Oct 5, 1998, 7:43 PM CDT (00:43 UTC)
Expired
Oct 6, 1998, 4:00 AM CDT
In force
8 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Cole County, MO, Moniteau County, MO

The radar

The St Louis radar (KLSX), 153 km from the middle of the area, began a volume at 00:42 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, 0.7 hours before the alert went out and 221 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 1998-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1998-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
608 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
244 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 060046
FFWSTL
MOC051-135-139-060900-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
743 PM CDT MON OCT 5 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLOOD WARNING FOR...
  COLE COUNTY IN CENTRAL MISSOURI
  MONITEAU COUNTY IN CENTRAL MISSOURI
  MONTGOMERY COUNTY MISSOURI IN EASTERN MISSOURI

* UNTIL 400 AM CDT

* AT 730 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LARGE AREA OF LIGHT TO MODERATE RAIN WITH EMBEDDED THUNDERSTORMS
  OVER PORTIONS OF CENTRAL...SOUTH CENTRAL AND EAST CENTRAL
  MISSOURI...MOVING NORTHEAST AT 30 MPH.  RAIN AND A FEW
  THUNDERSTORMS ARE EXPECTED TO CONTINUE ACROSS THE AREA THROUGH
  THE OVERNIGHT HOURS PRODUCING UP TO AN INCH OF ADDITIONAL
  RAINFALL.  THIS WILL LIKELY AGGREVATE EXISTING FLOOD PROBLEMS AND
  COULD RESULT IN ADDITIONAL FLOODING.

* IN MONTGOMERY COUNTY LAW ENFORCEMENT REPORTED HIGHWAY CC WAS
  UNDERWATER WITH HIGHWAYS J AND K BECOMING FLOODED.
  IN COLE COUNTY LAW ENFORECEMENT REPORTED ROCK HOUSE ROAD JUST WEST
  OF RUSSELLVILLE WAS FLOODED.
  IN MONITEAU COUNTY LAW ENFORECEMENT REPORTED HIGHWAY 87 SOUTH OF
  CALIFORNIA WAS UNDER WATER.

  IT IS QUITE LIKELY THERE ARE ADDITIONAL SECONDARY AND LESSER
  TRAVELED ROADS THAT ARE FLOODED BUT HAVE NOT BEEN REPORTED AT
  THIS TIME.

  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER ATTEMPT TO
  CROSS BRIDGES...DIPS...OR LOW-WATER CROSSINGS IF WATER COVERS THE
  ROAD. 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.

  LEWIS

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.

&

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 7:43 PM CDTFlash Flood WarningLSXMontgomery8 hr

Nearby

Flash Flood Warnings in Missouri, 1998Every flash flood warning in 1998

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.