Flash Flood Warning 213, NWS Austin/San Antonio, TX

Issued

Sep 8, 2002, 2:00 PM CDT (19:00 UTC)

Expired

Sep 8, 2002, 5:00 PM CDT

In force

3 hr

Issued by

NWS Austin/San Antonio, TX

Area

Counties, with a storm outline in the text

County Atascosa County, TX

The Austin/San Antonio radar (KEWX), 107 km from the middle of the area, began a volume at 18:59 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WGUS54 KEWX 081900
FFWSAT
TXC013-082200-

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

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  ATASCOSA

* UNTIL 500 PM CDT

* AT 156 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  10 MILES SOUTHEAST OF JOURDANTON...MOVING NORTH AT 20 MPH.         
  RAINFALL RATES ARE ESTIMATED AT 2 INCHES AN HOUR.  ADDITIONAL      
  THUNDERSTORMS IN NORTHERN MCMULLEN AND LIVE OAK COUNTIES WILL ALSO 
  MOVE NORTH AND TRAIN ACROSS ATASCOSA COUNTY. 

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 2869 9873 2869 9832 2876 9823 2901 9834
          2916 9865

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 8, 11:00 AM CDT, 3 hours earlier.

SOUTH CENTRAL TEXAS FORECAST DISCUSSION UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1100 AM CDT SUN SEP 8 2002

REMAINS OF FAY CURRENTLY CENTERED ZAVALA COUNTY.  THIS ORIENTATION
AFFORDS GOOD GULF FETCH.  LOOKS LIKE OUR EAST AND NE COUNTIES AND
INTO NE HILL COUNTRY MOST AT RISK OF FLASH FLOODING REST OF TODAY.
WILL REISSUE FLASH FLOOD WATCH TO TAKE OUT WESTERN-MOST TIER OF
COUNTIES SINCE LIMITED RAIN THERE SO FAR AND NOT A WHOLE LOT
EXPECTED THERE INTO MONDAY.  WILL ALSO REDUCE POPS SLIGHTLY FAR
WEST.

.EWX...FF WATCH THROUGH 6 PM TODAY ALL OF
       SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY.

3/13/DC/PM

PREVIOUS DISCUSSION...
SHORT TERM...REMAINS OF T.D. FAY HAS BEEN CREEPING WEST AT 5 MPH,
BUT APPEARS TO BE STATIONARY AGAIN.  CORE RAIN AREA HAS NOT
DEVELOPED, BUT FEEDER BANDS CONTINUE TO DEVELOP NEAR THE COASTAL
BEND AND ROTATE INTO THE HILL COUNTRY WHERE 850 CONVERGENCE LINE
RUNS EAST-WEST ACROSS THE HILL COUNTRY TO THE HOUSTON AREA. MODELS
INDICATE LITTLE MOVEMENT OF REMNANTS OF FAY THROUGH MONDAY.   700MB
LOW STAYS NEAR FRIO COUNTY THROUGH MONDAY.  THIS RAIN EVENT WILL
TAKE ITS TOLL FROM TRAINING ECHOES. WILL NOT CHANGE THE FLASH FLOOD
WATCH AREA AT THIS TIME.

TUESDAY THROUGH THURSDAY...THE WEST COAST TROUGH ERODES AND THE
UPPER HIGH TAKES UP RESIDENCE OVER THE CENTRAL U.S.  THIS ALLOWS THE
LOW TO RESUME IS WESTWARD TRACK INTO MEXICO.  MILD NORTHEAST FLOW
WILL CONTINUE GRADUALLY LOWERING PRECIPITABLE WATER AND CHANCES FOR
RAIN.  ANOTHER COLD FRONT BACK DOORS INTO TEXAS THURSDAY BUT MAY NOT
MAKE IT INTO SOUTH CENTRAL TEXAS.

EXTENDED...HIGH PRESSURE IS IN CONTROL WITH THE WESTERLIES
ENCROACHING ON NORTH TEXAS. WILL GO WITH THE ROUTINE SOUTH TEXAS
WEATHER AT THIS TIME WITH TEMPS NEAR OR SLIGHTLY ABOVE NORMAL.

PRELIM NUMBERS...

PRELIMS...
AUS  85 72 85 72 87   8885
DRT  88 74 88 74 90   5555
SAT  85 72 87 72 87   8885

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

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.