Alert archive / Texas / Flash Flood Warnings in 1996

Flash Flood Warning 7, NWS Lake Charles, LA

September 27, 1996Tyler County, Texas

NWS Lake Charles, LA issued this flash flood warning at Sep 27, 1996, 5:05 AM CDT for Tyler County, Texas. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 27, 1996, 5:05 AM CDT (10:05 UTC)
Expired
Sep 27, 1996, 7:00 AM CDT
In force
115 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Tyler County, TX

The radar

The Lake Charles radar (KLCH), 132 km from the middle of the area, began a volume at 10:06 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 00:00Z, 10.1 hours before the alert went out and 134 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 00:00Z on 1996-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1768 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 00:00Z on 1996-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
1768 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 271008
FFWLCH
TXC457-271200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
505 AM CDT FRI SEP 27 1996
 
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  700 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TEXAS
 
   ...TYLER COUNTY
 
DOPPLER RADAR INDICATED THAT 4 TO 6 INCHES OF RAIN HAS FALLEN OVER
NORTHERN AND CENTRAL PORTIONS OF TYLER COUNTY...BETWEEN WOODVILLE AND
COLMESNEIL. SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE EAST
ACROSS THE AREA AHEAD OF STATIONARY FRONT RESULTING IN ADDITIONAL 1
TO 2 INCHES OF RAIN IN THE NEXT TWO HOURS. THE LINE HAS SHOWN A GRADUAAL
SHIFT TO THE SOUTH WITH THE HEAVIEST RAIN EXPECTED FROM THE WOODVILLE
AREA AND POINTS SOUTH.
 
THE TYLER COUNTY SHERIFFS OFFICE HAS REPORTED WIDESPREAD FLOODING
OF ROADWAYS. THIS IS A DANGEROUS SITUATION AND MOTORISTS SHOULD LIMIT
THEIR TRAVEL IN THESE AREAS.
 
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.

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 Sep 27, 2:25 AM CDT, 2 hours 40 minutes earlier.

Area forecast discussion, Sep 27, 2:25 AM CDT, 2 hours 40 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
225 AM CDT FRI SEP 27 1996

KLCH RADAR SHOWS LINE OF SHOWERS AND THUNDERSTORMS DRAPED ACROSS
UPPR SE TX. LINE HAS BECOME STNRY WITH TRAINING ECHOS FM W TO E
AT 30 KTS. STP INDICATES BTWN 1 AND 2 INCHES OF RAINFALL ACROSS
NRN PRTNS OF TYLER AND JASPER COUNTIES. THIS LEADS INTO FCST PRBLM
OF THE DAY WITH HVY RNFL AND FLASH FLOOD PTNL. CLD FNT FM SHV TO
JUST N OF LFK WL RMN NRLY STNRY TDY AS UPPR TROF LAGS BEHIND
WITH STRONG VORT MAX DIGGING DOWN BACKSIDE. THIS SLOWING DOWN
ALRDY NOTED IN THE ABOVE MENTIONED RADAR DATA.  PWS RMN AOA 1.8
INCHES...K-INDEX GRTR THAN 30...LI/S -4 TO -6...AND THETA-E RDG AT
85H AND 70H ALL POINTING TO FLASH FLOOD EVENT ACROSS CWA. COORD
WITH SAT FOR FFA SE TX CNTYS AND WL SUGGEST THE SAME LA ZNS.
APPRS SVR WX PTNL FRTHR NORTH WITH BEST UPPR DYNAMICS. TIME SXNS
INDICATE PRONOUNCED DRYING AFTER 36H AS S/W ROUNDS BASE OF
UPPR TROF WITH FTR BCMG PROGRESSIVE.  AS FOR TEMPS...PREFER COOLER
AVN NUMBERS WITH RAIN-COOLED AIR.

5

BPT 81/62/75 841
LCH 82/62/75 841 LFT 85/65/75 852  AEX  79/58/69

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 11:56 PM CDTFlash Flood WarningLCHTyler64 min
Sep 27, 12:52 AM CDTSevere Thunderstorm WarningLCHJasper68 min
Sep 27, 2:59 AM CDTFlash Flood WarningLCHTyler2 hr
Sep 27, 5:21 AM CDTSevere Thunderstorm WarningLCHHardin69 min
Sep 27, 6:13 AM CDTSevere Thunderstorm WarningLCHJasper47 min
Sep 27, 8:50 AM CDTFlash Flood WarningLCHJefferson, Orange115 min
Sep 27, 9:57 AM CDTFlash Flood WarningLCHHardin2 hr
Sep 27, 10:40 AM CDTFlash Flood WarningLCHJefferson, Orange4 hr
Sep 27, 11:54 AM CDTFlash Flood WarningLCHHardin3 hr
Sep 27, 2:40 PM CDTFlash Flood WarningLCHHardin, Jefferson, Orange3 hr

Nearby

Flash Flood Warnings in Texas, 1996Every flash flood warning in 1996

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.