Name: Flash Flooding in Texas, August 17 to 18, 2007
Start: 2007-08-17T18:30
End: 2007-08-18T04:00
Location: Texas

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $70,000
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS EWX wrote it up.

As the remnants of Tropical Storm Erin continued northward across West Texas, bands of heavy rainfall formed in the afternoon of August 17, producing additional flooding across portions of the Edwards Plateau.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Aug 17, 5:56 PM CST, 34 minutes earlier.

Area forecast discussion, Aug 17, 5:56 PM CST, 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
656 PM CDT FRI AUG 17 2007

.UPDATE...
SOME EARLY EVENING RUN-OFF PROBLEMS COULD OCCUR OVER VAL VERDE AND
NWRN EDWARDS COUNTIES OTHERWISE THE THREAT FOR FLASH FLOODING HAS
DECREASED. THE FFA WILL BE ALLOWED TO EXPIRE, BUT LOCALLY HEAVY
RAINS WILL BE MENTIONED THRU TONIGHT FOR EDWARDS AND VAL VERDE
COUNTIES. WRN EDWARDS AND VAL VERDE COUNTIES HAVE NOT RECEIVED
MUCH RAIN UP TO THIS POINT, BUT COULD STILL SEE ISOLATED FLOODING
PROBLEMS THIS EVENING. ACROSS MOST AREAS, EXPECT THE CHANCE OF
RAIN TO DROP TO ALMOST NIL LATE THIS EVENING, BUT THEN PICK UP
AGAIN SLIGHTLY AS NOCTURNAL LOW LEVEL WINDS INCREASE BY AROUND
MIDNIGHT. PW VALUES REMAIN HIGH AND SHOULD REMAIN HIGH THROUGH
SATURDAY, BUT SURFACE WINDS SHOW A HINT OF DIFFLUENCE. THUS MOST
OF THE RAIN ACTIVITY SHOULD HOLD OFF UNTIL MORNING WHEN DIURNAL
EFFECTS WILL TAKE HOLD. WILL NEED TO KEEP AN EYE ON THE DRIFT OF
ERIN, AS THE GFS AND THE LATE AFTERNOON RADAR TRENDS SUGGESTS PART
OF ERIN COULD DROP SOUTHWARD AND BACK INTO OUR WESTERN COUNTIES
LATER THIS WEEKEND.

&&

.PREV DISCUSSION... /ISSUED 635 PM CDT FRI AUG 17 2007/

AVIATION...
PREVAILING VFR CONDITIONS WILL CONTINUE UNTIL AROUND 06Z...WHEN
MVFR CIGS WILL DEVELOP ALONG THE I-35 CORRIDOR. A FEW
THUNDERSTORMS ARE POSSIBLE AT KDRT EARLY THIS EVENING...OTHERWISE
VFR CONDITIONS WILL CONTINUE UNTIL EARLY SATURDAY MORNING WHEN
MVFR CIGS WILL DEVELOP ALONG THE RIO GRANDE VALLEY. CONDITIONS
WILL IMPROVE AROUND 15Z SATURDAY WITH A FEW MID DAY AND AFTERNOON
SHOWERS AND THUNDERSTORMS EXPECTED. A LIGHT TO MODERATE SE LOW
LEVEL FLOW WILL CONTINUE FOR THE NEXT 24H.

PREV DISCUSSION... /ISSUED 301 PM CDT FRI AUG 17 2007/

DISCUSSION...
THIS AFTERNOON THE CENTER OF TROPICAL DEPRESSION ERIN WAS LOCATED OVER
NORTHERN CROCKETT COUNTY MOVING NORTHWARD. CONVECTION OVER THE CWFA
THIS AFTERNOON IS DIURNALLY DRIVEN. THIS ACTIVITY WILL DIMINISH RAPIDLY
AFTER SUNSET WITH CORE RAINS OCCURRING NORTH OF THE CWFA NEAR THE
CENTER OF ERIN OVERNIGHT. THUS WE WILL LET THE FFA EXPIRE AT 7 PM
CDT. RESIDUAL TROPICAL MOISTURE WILL REMAIN OVER CWFA SATURDAY AND
SUNDAY. AFTERNOON HEATING WILL RESULT IN DIURNALLY DRIVEN SHOWERS
AND THUNDERSTORMS OVER THE WEEKEND WITH TROPICAL DOWNPOURS POSSIBLE.

THE NEXT WEATHER SYSTEM TO IMPACT SOUTH CENTRAL TEXAS IS A MID/UPPER
LEVEL TROF. THIS TROF IS CURRENTLY LOCATED OVER THE BAHAMAS MOVING
WESTWARD. THIS FEATURE WILL MOVE INTO SOUTH TEXAS MONDAY NIGHT AND
TUESDAY PROVIDING UPPER LEVEL SUPPORT FOR ADDITIONAL SHOWERS AND
THUNDERSTORMS.

HURRICANE DEAN IS NOW A CAT 3 STORM. IT IS FCST TO BE IN THE GULF
OF MEXICO ON TUESDAY. THIS STORM WILL LIKELY STRIKE SOMEWHERE
ALONG THE TEXAS COAST WEDNESDAY NIGHT INTO THURSDAY. IF THE
CENTER OF THE HURRICANE COMES ASHORE AROUND CORPUS CHRISTI OUR
CWFA WILL BE FAVORED RIGHT FRONT QUADRANT FOR EXCESSIVE RAINFALL.
OUR FCST FOR WEDNESDAY THROUGH FRIDAY OF NEXT WEEK WILL REMAIN
CONSERVITINE AND CLOSE TO THE GFS SOLUTION ATTM.

&&

.PRELIMINARY POINT TEMPS/POPS...
AUSTIN CAMP MABRY              76  92  76  92  74 /  20  40  20  20  20
AUSTIN BERGSTROM INTL AIRPORT  75  91  74  91  73 /  20  40  20  20  20
DEL RIO INTL AIRPORT           77  92  76  92  76 /  30  20  30  10  10
SAN ANTONIO INTL AIRPORT       77  91  76  91  75 /  20  30  20  20  20

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

18/11

Hazardous weather outlook, Aug 17, 6:01 PM CST, 29 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
701 PM CDT FRI AUG 17 2007

TXZ171>173-183>194-202>209-217>225-228-181115-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
701 PM CDT FRI AUG 17 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TONIGHT...
LOCALLY HEAVY RAINFALL IS POSSIBLE OVER THE EDWARDS PLATEAU AND
VAL VERDE COUNTY. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED AT
THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

The radar

The Laughlin AFB radar (KDFX), 139 km away, was scanning. The volume nearest the first event began at 00:31 UTC.

Open the radar archive at this moment

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Val Verde

When: August 17, 6:30 PM CST to August 18, 4:00 AM CST
Where: Val Verde County, Langtry to 15 mi NE of Juno
Cause: Heavy Rain
Property damage: $50,000
Reported by: Law Enforcement
Coordinates: 29.820, -101.570

Showers and thunderstorms associated with Erin spread across the northwest half of Val Verde County in the mid-afternoon. Rain totals averaged between 3 and 4 inches with up to 8 inches east of Juno and around Pandale. Flash flooding began in the evening and continued through midnight into the early morning hours. SH163, FM189, and FM1024 were reported closed due to high water.

Flash Flood, Edwards

When: August 17, 8:30 PM CST to 11:00 PM CST
Where: Edwards County, Rocks Spgs to 35 mi NW of Rocks Spgs
Cause: Heavy Rain
Property damage: $20,000
Reported by: Law Enforcement
Coordinates: 30.020, -100.220

Showers and thunderstorms associated with Erin developed over the northwest quarter of Edwards County in the late-afternoon. Rain totals averaged between 3 and 4 inches in the northwest corner of the county, closing US277 and SH55 near the Val Verde County line in the late evening hours.

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Texas in 2007 Every state in 2007 This day in weather history Warnings in Texas, August 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 51459, 51460.