Flash Flood Warning 108, NWS Austin/San Antonio, TX

Issued

Aug 24, 1999, 5:42 AM CDT (10:42 UTC)

Expired

Aug 24, 1999, 10:00 AM CDT

In force

4 hr

Issued by

NWS Austin/San Antonio, TX

Area

Whole counties

Counties Dimmit County, TX, Maverick County, TX, Zavala County, TX

000 
TTAA00 KEWX 241047 RRA
FFWSAT
TXC127-271-323-465-507-241500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
542 AM CDT TUE AUG 24 1999

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  MAVERICK COUNTY
  ZAVALA COUNTY
  KINNEY COUNTY
  VAL VERDE COUNTY
  DIMMIT COUNTY

* UNTIL 10 AM CDT

SHOWERS AND THUNDERSTORMS WILL CAUSE OCCASIONAL RAIN...HEAVY AT 
TIMES...GUSTY WIND AND LIGHTNING OVER PARTS OF MAVERICK...
ZAVALA...KINNEY...VAL VERDE AND DIMMIT COUNTY FOR THE NEXT
FEW HOURS.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 24, 3:45 AM CDT, 1 hour 57 minutes earlier.

SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
345 AM CDT TUE AUG 24 1999

REMAINS OF BRET LOOKING MORE LIKE A STACKED COLD CORE LOW THAN A
TROPICAL LOW.  CURRENT TRACK BASED ON RADAR AND SATELLITE IMAGERY
HAS BRET MOVING WEST NORTHWEST AT 10 MPH.  THIS TRACK WILL KEEP ALL
OF THE AREA UNDER A DEEP MARITIME FLOW.  RESULT...HIGH PRECIPITABLE
WATER CONTENT AND CONTINUED CHANCE FOR SHOWERS TODAY.  WILL ADJUST
FLASH FLOOD WATCH TO COVER WESTERN HILL COUNTRY AND ALL BUT
NORTHEAST COUNTIES OF SOUTH CENTRAL TEXAS.  THIS WILL RUN THROUGH
7PM.

WITH BRET GONE TONIGHT, THE ESCARPMENT AND SUFFICIENT LOW LEVEL JET
WILL PRODUCE LIGHT RAIN TONIGHT TO THE WEST.  WEDNESDAY, THE
PROXIMITY OF THE WESTERLIES SHIFTS THE WINDS TO A DRIER EASTERLY
DIRECTION.  SHOWERS WILL BE CONFINED TO THE SOUTHERN MOST COUNTIES
ALONG THE SEABREEZE BOUNDARY. THERE IS A LOW CHANCE THE CONVECTION
ON THE COLD FRONT COULD MOVE SOUTH INTO NORTHEASTERN COUNTIES WED
AFTERNOON/EVENING. OVERALL DECREASING CLOUDINESS WILL ALLOW TEMPS TO
REBOUND TO NEAR NORMAL WEDNESDAY.  COULD HAVE SOME RADIATION GROUND
FOG AROUND THURSDAY MORNING.

PRELIMS NUMBERS

AUS 094/074/097/074  4321
SAT 090/074/095/074  531-
DRT 085/075/090/074  853-

.EWX...FLASH FLOOD WATCH THROUGH TODAY ALL AREAS EXCEPT TRAVIS WILLIAMSON
         BASTROP LEE AND FAYETTE COUNTIES.

06/08/DC

Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999

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.