Flash Flood Warning 196, NWS Austin/San Antonio, TX

Issued

Oct 17, 1998, 11:50 PM CDT (04:50 UTC)

Expired

Oct 18, 1998, 8:00 AM CDT

In force

8 hr

Issued by

NWS Austin/San Antonio, TX

Area

Whole counties

County Real County, TX

The Laughlin AFB radar (KDFX), 76 km from the middle of the area, began a volume at 04:52 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.

000 
TTAA00 KSAT 180453
FFWSAT
TXC019-021-029-031-053-055-091-149-171-187-209-259-265-287-299-
325-385-453-463-491-181300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1150 PM CDT SAT OCT 17 1998

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

* FLASH FLOOD WARNING FOR...
  LLANO IN TEXAS
  BURNET IN TEXAS
  WILLIAMSON IN TEXAS
  GILLESPIE IN TEXAS
  BLANCO IN TEXAS
  TRAVIS IN TEXAS
  BASTROP IN TEXAS
  LEE IN TEXAS
  REAL IN TEXAS
  KERR IN TEXAS
  KENDALL IN TEXAS
  BANDERA IN TEXAS
  COMAL IN TEXAS
  HAYS IN TEXAS
  CALDWELL IN TEXAS
  FAYETTE IN TEXAS
  UVALDE IN TEXAS
  MEDINA IN TEXAS
  BEXAR IN TEXAS
  GUADALUPE IN TEXAS

* UNTIL 800 AM CDT

* FOR THE REST OF THE NIGHT...OCCASIONAL RAIN WILL CONTINUE.  RAIN
  MAY BE HEAVY AT TIMES.  NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED SHOWERS AND THUNDERSTORMS WITH MODERATE TO HEAVY RAIN
  OVER PARTS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS...
  MOVING NORTHEAST NEAR 10 MPH.  CONDITIONS BODE WELL FOR OCCASIONAL
  RAIN TO CONTINUE THE REST OF THE NIGHT.

* VERY HEAVY RAINS TODAY...OCTOBER 17TH...1998 HAS CAUSED
  WIDESPREAD FLOODING OVER THE TEXAS HILL COUNTRY AND SOUTH
  CENTRAL TEXAS.   ADDITIONAL RAINS TONIGHT WILL CAUSE CONTINUED
  FLOODING OVER LOW LYING AREAS.  IN ADDITION...FLOODING NEAR AND
  IN THE FLOOD PLAIN OF CREEKS...STREAMS AND RIVERS IS LIKELY.

  DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!  DRIVING INTO
  FLOODED LOW WATER CROSSINGS OR LOW LYING AREAS COULD THREATEN YOUR
  LIFE AND PROPERTY.  THE POWER OF WATER IS TREMENDOUS...AND MANY
  FLASH FLOOD DEATHS IN THE PAST CAME FROM PERSONS WHO DROVE INTO
  LOW WATER CROSSINGS OR LOW LYING AREAS.

  FLOODING OVER LOW LYING AREAS...AND ALSO OVER AND NEAR THE FLOOD
  PLAINS OF STREAMS...CREEKS AND RIVERS IS LIKELY...ESPECIALLY
  WHERE HEAVY RAINS HAVE FALLEN TODAY.

  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 ESCAPE FLOOD WATERS. DO NOT
  STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS
  VERY DIFFICULT AT NIGHT TO pTELL HOW MUCH WATER IS ON ROADS.
  MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 17, 8:20 PM CDT, 3 hours 30 minutes earlier.

COASTAL BEND FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
820 PM CDT SAT OCT 17 1998

MSTR CONTINUES TO ADVECT FM MADELINE ACRS MEXICO INTO TX. THIS MSTR
COMBINED WITH THE SFC FNT TO THE NORTH AND UPR DYNAMICS TO GENERATE
COPIOUS RAIN/TSTMS TDA JUST NORTH OF OUR CWA. NEVERTHELESS...
SCATTERED SHOWERS AND THUNDERSTORMS HAVE AFFECTED MAINLY THE CNTRL
AND ERN CWA TDA IN PART DUE TO THE RRQ OF THE UPR JET STREAK. THIS
STREAK IS PROGD BY ALL MODELS TO LIFT NEWD. THE AVN IS PREFERRED
ATTM SINCE COMPARISON WITH LAPS INDICATES THAT IT IS BETTER THAN NGM
AND ETA IN FCSTG THE SFC PRES FIELD OVR THE WRN CWA. THE AVN PROGD A
SFC LOW TO DVLP FM 00 TO 06 UTC OVR THE WRN CWA AND LAPS PRES PTNS
INDICATES SUCH. THUS EXPECT PCPN TO DVLP OVR THE WRN CWA TNGT.
WSR-88D IS BEGINNING TO INDICATE SUCH. AVN PROGS THE WRN CWA LOW TO
DMSH YET DRAGS THE SFC FNT INTO THE CWA SUN...AND KEEPS IT
QUASI-STATIONARY...WHICH WL ENHANCE CHANCE FOR SHOWERS AND
THUNDERSTORMS. SFC THETA-E VALUES ARE ALREADY GREATER THAN THAT
PROGD BY THE NGM/ETA/AVN. HIGH LOW LVL AND MID LVL MSTR WL LIKELY
RESULT IN COPIOUS RAINS OVR PTNS OF THE CWA SUN. NO CHGS TO CURRENT
PERIOD ATTM...HWR SUGGEST MENTION OF PSBL HVY RAIN IN THE ZNS FOR
SUN...AND CONSIDER PSBL ISSUANCE OF FFA.

87

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.