Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 210, NWS Austin/San Antonio, TX

September 8, 20025 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 8, 2002, 9:59 AM CDT for 5 counties in 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 outline as issued.

The facts

Issued
Sep 8, 2002, 9:59 AM CDT (14:59 UTC)
Expired
Sep 8, 2002, 12:00 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Blanco County, TX, Burnet County, TX, Llano County, TX, Travis County, TX, Williamson County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 3.0 hours before the alert went out and 282 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, Fort Worth, TX at 12:00Z on 2002-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 513 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, Fort Worth, TX at 12:00Z on 2002-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
513 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 081459
FFWSAT
TXC031-053-299-453-491-081700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
956 AM CDT SUN SEP 8 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  BURNET
  LLANO
  WILLIAMSON
  TRAVIS
  BLANCO

* UNTIL NOON CDT

* AT 956 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  FROM NORTHWEST OF LAGO VISTA TO MANOR...MOVING WEST NORTHWEST AT   
  25 MPH.  RAINFALL RATES ARE ESTIMATED AT AROUND 2 INCHES AN HOUR 
  JUST EAST OF LAGO VISTA AND NEAR CYPRESS MILL. 

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  MARBLE FALLS
  HORSESHOE BAY
  GRANITE SHOALS
  KINGSLAND

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3018 9857 3010 9838 3037 9818 3043 9804
          3013 9762 3039 9741 3088 9775 3086 9839
          3048 9857
2 follow-up statements
000 
WGUS74 KEWX 081610
FFSSAT
TXC031-081715-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1108 AM CDT SUN SEP 8 2002

...THE FLASH FLOOD WARNING FOR BLANCO COUNTY HAS BEEN CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL HAS ENDED
ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME
MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS
ENDED...AND THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
000 
WGUS74 KEWX 081659
FFSSAT
TXC299-453-081900-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1159 AM CDT SUN SEP 8 2002

...THE FLASH FLOOD WARNING FOR LLANO AND TRAVIS COUNTIES HAS BEEN
CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING
ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME
MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS
ENDED...AND THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.

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, 10:00 PM CDTFlash Flood WarningEWXTravis, Williamson3 hr
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, 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.