Flash Flood Warning 109, NWS Austin/San Antonio, TX

Issued

Jul 5, 2002, 12:48 AM CDT (05:48 UTC)

Expired

Jul 5, 2002, 4:00 AM CDT

In force

3 hr

Issued by

NWS Austin/San Antonio, TX

Area

Counties, with a storm outline in the text

County Wilson County, TX

The Austin/San Antonio radar (KEWX), 62 km from the middle of the area, began a volume at 05:49 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 050548
FFWSAT
TXC493-050900-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1247 AM CDT FRI JUL 5 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 400 AM CDT

* AT 1247 AM...WEATHER SERVICE DOPPLER RADAR INDICATED AREAS OF 
RAIN...HEAVY AT TIMES...FORMING OVER WILSON COUNTY.  AREAS OF 
RAIN...HEAVY AT TIMES...IS EXPECTED OVER PARTS OF WILSON COUNTY
FROM SHOWERS AND THUNDERSTORMS FOR THE NEXT FEW HOURS.

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

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. LAT...LON
2911 9827 2897 9814 2923 9781 2933 9804

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Jul 4, 8:35 PM CDT, 4 hours 13 minutes earlier.

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
835 PM CDT THU JUL 4 2002

FOR THE MOMENT ONLY ISOLD SHOWERS FROM NEAR SAT TO LLANO WITH ALL
FLASH FLOOD WARNINGS EXPIRED.  CONTG TO WATCH CONVECTIVE COMPLEX
TO THE SOUTH WHICH HAS SHOWN SIGNS OF BUILDING TOWARDS THE W AND NW
WHERE STG THETA-E RDG INDICATED BY LAPS AND MID LEVEL MCV MOVG SWD
DOWN THE RIO GRANDE.  LATEST RUC RUNS CONTS TO PRODUCE SIGNIFICANT
PCPN FROM BEXAR COUNTY WWD 06Z/09Z...WHILE 18Z MESO-ETA AND AVN
SHOWING LESSER AMOUNTS TO THE WEST OF SAT.  HOWEVER WITH PWSS NEAR
2 INCHES...AND PAST HISTORY OF PREVIOUS NIGHTS WILL CONT TO LEAN
TOWARD WETTER SOLN WITH PSBL TRAINING STORMS MOVING/BUILDING NWD
INTO THE SRN/S CNTRL CWA OVERNIGHT.  CONTG FFA AS IS WITH NO MAJOR
CHANGES ON UPDATE.  01/03/10/09/23

PREVIOUS DISC...
THE FLASH FLOOD WATCH WILL BE EXTENDED THRU FRIDAY AFTERNOON FOR THE
HILL COUNTRY AND MUCH OF SOUTH CENTRAL TEXAS.

A DANGEROUS FLOODING SITUATION CONTINUES ACROSS THE HILL COUNTRY AND
ADJACENT AREAS OF SOUTH CENTRAL TEXAS AS NUMEROUS STREAMS AND RIVERS
REMAIN IN FLOOD.  ANY ADDITIONAL RAINFALL WILL RESULT IN RAPID RUNOFF
DUE TO SATURATED SOILS.

THE UPPER LEVEL TROF/SHEAR AXIS REMAINS NEARLY STATIONARY FROM NEAR
EL INDIO TO ABILENE...WITH LITTLE CHANGE IN LOCATION EXPECTED OVER
THE NEXT 24 HOURS.  SHOWERS AND THUNDERSTORMS HAVE ONCE AGAIN FIRED
IN THE TROPICAL AIRMASS THANKS TO DAYTIME HEATING.  THESE STORMS
WILL STREAM NORTHWARD AND TRAIN ACROSS THE WATCH AREA THIS AFTERNOON
AND EVENING...GENERALLY EAST OF A LINE FROM HARPER TO SABINAL AND
COTULLA.

THE VORT MAX CURRENTLY LOCATED OVER DEEP SOUTH TEXAS IS FCST BY THE
MESOETA TO MOVE NORTHWARD THIS EVENING AND TONIGHT.  THE RESULT WILL
BE ANOTHER MCS DEVELOPING AND IMPACTING THE FLASH FLOOD WATCH AREA.
MODELS STILL TRY TO DRIFT THIS DISTURBANCE WESTWARD BUT THIS IS HAS
NOT OCCURRED DUE TO THE TRAPPING UPPER RIDGE TO THE NORTH.  IT IS
MORE LIKELY THIS UPPER LEVEL FEATURE WILL SLOWLY WEAKEN AND RAIN
ITSELF OUT.

A QUICK LOOK AT THE EXTENDED MODELS/FCST LOOKS WET.  THE MRF/AVN
SOLUTIONS TRY TO BRING A BACKDOOR FRONT INTO THE HILL COUNTRY BY THE
LATTER HALF OF THE WEEK...BECOMING STATIONARY.

.EWX...FLASH FLOOD WATCH TONIGHT AND FRIDAY FOR THE HILL COUNTRY
       AND MUCH OF SOUTH CENTRAL TEXAS...GENERALLY WEST OF THE
       I-35 CORRIDOR.

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.