Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 205, NWS Austin/San Antonio, TX

September 7, 2002Travis County, Williamson County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 7, 2002, 10:00 PM CDT for Travis County, Williamson 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 7, 2002, 10:00 PM CDT (03:00 UTC)
Expired
Sep 8, 2002, 1:00 AM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Travis County, TX, Williamson County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 3.0 hours before the alert went out and 309 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 2002-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1233 joules per kilogram.LCLEL10008507005003002001001 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 2002-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
1233 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1438 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 7, 2:45 PM CDT, 7 hours 15 minutes earlier.

Area forecast discussion, Sep 7, 2:45 PM CDT, 7 hours 15 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 PM CDT SEP SEP 7 2002

AVN FRANKLY LOOKS SCARY.  QPF THROUGH TUESDAY COULD BE COMMONLY 8-9
INCHES.  WILL GO FOR HIGH POPS THROUGH SUNDAY THEN REDUCED A BIT FOR
SE COUNTIES SUNDAY NIGHT THROUGH MONDAY NIGHT.  CHANCE POPS CONTINUE
ALL AREAS TUESDAY AND WEDNESDAY WITH SLIGHT CHANCE FOR THURSDAY
THROUGH SATURDAY AS UPPER TROUGH SWINGS ACROSS.  RAIN AND CLOUDS
WILL MAKE FOR MODERATE DAYTIME TEMPS.

PRELIMS...
AUS  070 086/070 086 7888
DRT  072 088/070 088 5555
SAT  072 087/070 086 7888

.EWX...FF WATCH THROUGH 6 AM SUNDAY ALL OF SOUTH CENTRAL TEXAS
       AND THE TEXAS HILL COUNTRY.

3/13/JB

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 7, 7:03 PM CDTFlash Flood WarningEWXUvalde117 min
Sep 7, 8:00 PM CDTFlash Flood WarningEWXTravis, Williamson2 hr
Sep 7, 8:47 PM CDTFlash Flood WarningEWXBurnet, Gillespie, Llano118 min
Sep 7, 11:03 PM CDTFlash Flood WarningEWXBurnet, Llano117 min
Sep 8, 1:01 AM CDTFlash Flood WarningEWXLlano119 min
Sep 8, 4:18 AM CDTFlash Flood WarningEWXBexar3 hr
Sep 8, 9:15 AM CDTFlash Flood WarningEWXDeWitt3 hr
Sep 8, 9:59 AM CDTFlash Flood WarningEWXBlanco, Burnet, Llano, Travis, Williamson2 hr
Sep 8, 12:06 PM CDTFlash Flood WarningEWXBurnet, Williamson114 min
Sep 8, 1:42 PM CDTFlash Flood WarningEWXLavaca2 hr
Sep 8, 2:00 PM CDTFlash Flood WarningEWXAtascosa3 hr
Sep 8, 4:53 PM CDTFlash Flood WarningEWXBexar, Karnes, Wilson3 hr

Nearby

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

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.