Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 15, NWS Lake Charles, LA

January 6, 1998Jefferson County, Orange County, Texas

NWS Lake Charles, LA issued this flash flood warning at Jan 6, 1998, 4:48 PM CST for Jefferson County, Orange County, Texas. It was in force for 2 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
Jan 6, 1998, 4:48 PM CST (22:48 UTC)
Expired
Jan 6, 1998, 7:00 PM CST
In force
2 hr
Issued by
NWS Lake Charles, LA
Area
Whole counties

Counties Jefferson County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 79 km from the middle of the area, began a volume at 22:48 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.8 hours before the alert went out and 81 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, Lake Charles Mun, LA at 12:00Z on 1998-01-06Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 1998-01-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
903 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
264 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 062250
FFWLCH
TXC245-361-070100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
448 PM CST TUE JAN 6 1998

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES LA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 700 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEASTERN TEXAS

   ...JEFFERSON COUNTY
   ...ORANGE COUNTY

AT 445 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES
THAT PORTIONS OF JEFFERSON AND ORANGE COUNTIES HAVE RECEIVED OVER
AN INCH OF RAIN DURING THE PAST HOUR. DURING THE MORNING...EXTREME
NORTHWEST PORTIONS OF JEFFERSON COUNTY RECEIVED THREE INCHES OF
RAINFALL. AN ADDITIONAL ONE TO THREE INCHES IS LIKELY DURING THE
NEXT TWO HOURS ACROSS BOTH ORANGE AND JEFFERSON COUNTIES LIKELY
PRODUCING STREET FLOODING.  THE NOME AND CHINA COMMUNITIES ARE
EXPECTED TO RECEIVE THE HEAVIEST RAINFALL.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
ROADWAY. THE WATER DEP`TH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. REMEMBER...MOST FLOOD RELATED DEATHS OCCUR IN
AUTOMOBILES.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this flash flood warning went out at Jan 6, 3:23 PM CST, 1 hour 25 minutes earlier.

Area forecast discussion, Jan 6, 3:23 PM CST, 1 hour 25 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
323 PM CST TUE JAN 6 1998   ...REXMITTED...

ITS GOING TO BE A MESS TONITE. DEEP MSTR CONTINUES TO STREAM IN
AS H5 LO TRACKS SLOLY E OUT OF NM. THROW IN A COUPLE OF UPR LVL
JETS AND VARIOUS SFC BOUNDARIES...AND SHUD END UP WITH SOME MAJOR
FLOODING BEFORE THE NIGHT IS OVER. SEVERAL FFWS HAVE BEEN ISSUED
AND FFA REMAINS NECESSARY FOR ENTIRE FA INTO TMRW. SHUD BEGIN TO
SEE A BRK FRM THE HEAVIEST RAIN WED MORN AS SFC FRNT MOVES THRU
AND DRIER AIR BEGINS TO FILTER IN...THO SW FLO ALOFT CONTINUES AND
CLOUDY SKIES AND RAINFALL SHUD LINGER. TEMP TREND OF FWC SEEMS
FAIRLY REASONABLE. 8

BPT 61/64/44/51 +741
LCH 61/64/44/51 +741  LFT 61/65/45/52 +741  AEX 61/64/43/51 +741

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 6, 5:16 AM CSTSevere Thunderstorm WarningLCHJasper29 min
Jan 6, 10:30 AM CSTFlash Flood WarningLCHHardin, Jefferson110 min
Jan 6, 12:35 PM CSTFlash Flood WarningLCHHardin, Jasper, Tyler2 hr
Jan 6, 12:35 PM CSTFlash Flood WarningLCHNewton2 hr
Jan 6, 3:00 PM CSTFlash Flood WarningLCHHardin, Jasper, Newton, Tyler3 hr

Nearby

Flash Flood Warnings in Texas, 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.