Alert archive / Missouri / Flash Flood Warnings in 1998

Flash Flood Warning 53, NWS St. Louis, MO

October 5, 1998Boone County, Callaway County, Missouri

NWS St. Louis, MO issued this flash flood warning at Oct 5, 1998, 5:40 PM CDT for Boone County, Callaway County, Missouri. It was in force for 10 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, 5:40 PM CDT (22:40 UTC)
Expired
Oct 6, 1998, 4:00 AM CDT
In force
10 hr
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Boone County, MO, Callaway County, MO

The radar

The St Louis radar (KLSX), 127 km from the middle of the area, began a volume at 22:43 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 12:00Z, 10.7 hours before the alert went out and 268 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 12:00Z on 1998-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 263 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 12:00Z on 1998-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 323 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
263 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
570 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
323 m²/s²
0-3 km storm-relative helicity
352 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 052242
FFWSTL
MOC019-027-060900-

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

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI
  CALLAWAY COUNTY IN CENTRAL MISSOURI

* UNTIL 400 AM CDT

* THE FLASH FLOOD WARNING HAS BEEN EXTENDED THROUGH THE NIGHTTIME
  HOURS IN BOONE AND CALLAWAY COUNTIES.  MANY ROADS ACROSS THESE
  COUNTIES ARE STILL CLOSED OR IMPASSABLE DUE TO THE HEAVY RAINS
  WHICH FELL LATE LAST NIGHT AND TODAY.  UP TO ONE INCH OF
  ADDITIONAL RAIN IS EXPECTED TONIGHT AS SHOWERS AND THUNDERSTORMS
  CONTINUE TO MOVE NORTHEASTWARD THROUGH CENTRAL MISSOURI.

* SOME ROADS WHICH REMAIN CLOSED OR IMPASSABLE INCLUDE STATE ROAD O
  AT JOHNSON BRIDGE AND HIGHWAY 94 BETWEEN ROUTES PP AND C...BOTH
  IN CALLAWAY COUNTY.  NUMEROUS ROADS ARE CLOSED OR IMPASSABLE IN
  THE CITY OF COLUMBIA.  RANGELINE RD BETWEEN VERNERS FORD AND RT WW
  AND AT BEN WILLIAMS RD...THE 5100 BLOCK OF BOONE FEMME CHURCH RD
  ...BLACKFOOT RD AND JEMERSON CREEK ROAD NEAR CHRISTIAN SCHOOL RD
  ARE ALL CLOSED OR IMPASSABLE.

  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.

GKS


&

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 8:50 AM CDTFlash Flood WarningLSXMoniteau4 hr
Oct 5, 9:11 AM CDTFlash Flood WarningLSXKnox4 hr
Oct 5, 10:18 AM CDTFlash Flood WarningLSXBoone, Callaway, Cole4 hr
Oct 5, 10:18 AM CDTFlash Flood WarningLSXLewis, Monroe, Shelby4 hr
Oct 5, 10:18 AM CDTFlash Flood WarningLSXAudrain4 hr
Oct 5, 12:43 PM CDTFlash Flood WarningLSXMoniteau3 hr
Oct 5, 2:50 PM CDTFlash Flood WarningLSXBoone, Callaway3 hr
Oct 5, 3:52 PM CDTFlash Flood WarningLSXMoniteau4 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.