Alert archive / Texas / Flash Flood Warnings in 1997

Flash Flood Warning 68, NWS Houston/Galveston, TX

September 23, 1997Washington County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Sep 23, 1997, 6:38 AM CDT for Washington County, Texas. It was in force for 3 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
Sep 23, 1997, 6:38 AM CDT (11:38 UTC)
Expired
Sep 23, 1997, 9:45 AM CDT
In force
3 hr
Issued by
NWS Houston/Galveston, TX
Area
Whole counties

County Washington County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 11.6 hours before the alert went out and 291 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, Corpus Christi, TX at 00:00Z on 1997-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2519 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, Corpus Christi, TX at 00:00Z on 1997-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.1939Sfc1 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
2519 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
705 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 23, 3:08 AM CDT, 3 hours 30 minutes earlier.

Area forecast discussion, Sep 23, 3:08 AM CDT, 3 hours 30 minutes before
SOUTHEAST TEXAS FORECAST DISCUSSION ...CORRECTED AND UPDATED PRELIMS
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
308 AM CDT TUE SEP 23 1997

UPR TROF TO DAMPEN OUT OVR THE AREA TDY AS AN UPR HI DEVELOPS SWD.
ETA KEEPS THE SFC THETA-E RDG OVR SETX AS A VORT MAX MOVS SLOLY EWD.
WUD XPC THE BEST AREA OF RNFL TO THUS SHIFT SLOLY EWD ACROSS THE FCST
AREA THRU THE DAY.  WV LOOPS SHOWING A VERY GOOD TROPICAL MSTR TAP
WITH THIS SYSTEM...AND COMBINING THIS FACT WITH THE WK SFC BNDRY JUST
TO THE N ALONG WITH THE LIFT FM THE UPR LVL FEATURES...WUD LIKE TO
CONT THE FLASH FLOOD WATCH FOR TDY.  WL DISC DETAILS WITH SAT AND
ISSUE LATER IN THE SHIFT.  WL LWR THE CHCS OF PRECIP OVR THE CWA BY
WED NGT.  A LOW DEVELOPS OVR OK IN THE 3RD PD AND MOVS INTO AR...
WITH THE TRAILING CDFNT SHOWN TO MOV THRU SETX WED.  THIS SHUD MEAN
AN END TO THE RNFL WED OR WED NGT.  WL GO BLO MOS POPS IN THE 3RD AND
4TH PDS.  WITH BKN TO OVC CONDS TDY TEMPS WL BE BLO MOS NUMBERS...AND
WL GO CLOSER TO GUIDANCE TWD THE 4TH PD.  SEE PRELIMS BLO.  40

PRELIMS...
CLL TEEB 084/074 086/069 7452
IAH TEEB 081/074 084/070 7352  FLASH FLOOD WATCH TDY
GLS TEEB 080/074 080/073 7353  FLASH FLOOD WATCH TDY
PSX EETB 083/074 084/071 5563

Nearby

Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997

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.