Flash Flooding in Texas, August 9, 2003

Name: Flash Flooding in Texas, August 9, 2003
Start: 2003-08-09T15:30
End: 2003-08-09T17:00
Location: Texas

August 9, 2003 · NWS EWX · 2 events in 2 counties and zones

2 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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: $8,000
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 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 9, 1:55 PM CST, 1 hour 35 minutes earlier.

Area forecast discussion, Aug 9, 1:55 PM CST, 1 hour 35 minutes before

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
255 PM CDT SAT AUG 9 2003

AN UNUSUAL WET AUGUST PATTERN IS ABOUT TO UNFOLD ACROSS SOUTH
CENTRAL TEXAS.  THE DECAYING MCS ON OUR DOORSTEP AT THE MOMENT WILL
HELP TO INITIATE WIDESPREAD CONVECTION LATE THIS AFTERNOON AND
TONIGHT.  WITH TEMPERATURES ALREADY ABOVE THE CENTURY MARK TO THE
SOUTH AND WEST...ENOUGH FUEL ADDED TO THE FIRE FOR SOME INTENSE
STORMS TONIGHT AS INFLOW INCREASES...WITH THE MAIN SEVERE THREAT
THIS AFTERNOON AND TONIGHT BEING FROM DAMAGING WINDS. ADDED SURFACE
MOISTURE FROM RAINS TONIGHT WILL PRODUCE MORE SCATTERED CONVECTION
SUNDAY WITH A DIVERGENT NORTHERLY FLOW ALOFT. CONTINUED CHANCES FOR
CONVECTION MONDAY AND TUESDAY AS NORTHERLY IMPULSES SWEEP SOUTH. BY
MIDWEEK..A WEAKNESS IS CARVED OUT IN THE UPPER RIDGE OVER TEXAS SO
AIRMASS SHOWERS AND THUNDERSTORMS SOUND REASONABLE THROUGH SATURDAY
WITH MODERATING TEMPERATURES AS ATMOSPHERE BECOMES MORE
TROPIC-LIKE.

BERMUDA HIGH MAY MAKE AN ENTRANCE BY NEXT SUNDAY (AUG 17TH) WITH A
POSSIBLE CUTOFF TO RAIN CHANCES.

02/18/KW

NUMBERS...
AUS BB 070/098 070/098 069 02843 0000/0000/0000
    BEBBB 095/073 092/074 092/073 094/073 094 33334433222
DRT BB 078/098 073/095 073 02632 0000/0000/0000
    BBBBB 097/075 096/077 096/077 095/077 095 11122233222
SAT BB 073/098 073/095 076 02843 0000/0000/0000
    BEBBB 095/075 093/076 093/076 094/076 094 33333333222

.EWX...NONE.

Hazardous weather outlook, Aug 9, 5:00 AM CST, 10 hours 30 minutes before

TXZ171>173-183>194-202>209-217>225-228-101100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
600 AM CDT SAT AUG 9 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...TODAY

INTENSE AFTERNOON HEATING WILL PRODUCE SCATTERED THUNDERSTORMS AGAIN
THIS AFTERNOON ACROSS SOUTH CENTRAL TEXAS. SOME OF THESE STORMS MAY
BECOME SEVERE AND PRODUCE DAMAGING WINDS. SMALL HAIL AND FREQUENT
LIGHTNING ARE ALSO POSSIBLE WITH THESE STORMS. THE MAIN THREAT TIME
FOR THESE STORMS WILL BE FROM 3 TO 7 PM. THE MAIN THREAT AREA WILL
BE THE HILL COUNTRY AND AREAS ALONG THE INTERSTATE 35 CORRIDOR FROM
GEORGETOWN TO SAN ANTONIO.

AN ORGANIZED LINE OF STRONG TO SEVERE THUNDERSTORMS WILL LIKELY MOVE
FROM NORTH TO SOUTH THROUGH THE AREA LATE TONIGHT THROUGH SUNDAY
MORNING. THE MAIN THREAT FROM THESE STORMS WILL ALSO BE DAMAGING
WINDS. HOWEVER...LARGE HAIL AND LOCALLY HEAVY RAIN IS ALSO POSSIBLE.
ALL OF SOUTH CENTRAL TEXAS IS IN THE THREAT AREA FOR THESE STORMS.
THE MOST LIKELY THREAT TIME WILL BE FROM MIDNIGHT THROUGH 10 AM
SUNDAY.

.DAYS TWO THROUGH SEVEN...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

ADDITIONAL ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE ON MONDAY AS
STRONG MID LEVEL WINDS AND A WEAK FRONT MOVE INTO THE AREA.
SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH
MOST OF THE COMING WEEK...BUT SEVERE WEATHER IS UNLIKELY AFTER
MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LATE THIS AFTERNOON AND TONIGHT.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Kerr

When: August 9, 3:30 PM CST to 5:00 PM CST
Where: Kerr County, Southwest Portion
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 30.062, -99.350 (the zone’s center; the record gives no point)

The late season cold front that had moved into South Central Texas from the north on August 8 slowed and stalled across the area on August 9. Scattered showers and thunderstorms redeveloped in the morning and continued into the afternoon. Although rainfall rates were not excessive the duration of the rain produced general 1 to 2 inch amounts over the area with up to 4 inch totals in the southwest. Brief flash flooding developed in the late afternoon.

Flash Flood, Real

When: August 9, 3:30 PM CST to 5:00 PM CST
Where: Real County, North Portion
Property damage: $3,000
Reported by: LAW ENFORCEMENT
Coordinates: 29.832, -99.822 (the zone’s center; the record gives no point)

The late season cold front that had moved into South Central Texas from the north on August 8 slowed and stalled across the area on August 9. Scattered showers and thunderstorms redeveloped in the morning and continued into the afternoon. Although rainfall rates were not excessive the duration of the rain produced general 1 inch amounts over the northern half of the county, with isolated totals to 3 inches. Brief flash flooding was reported in the late afternoon.

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

Every storm in Texas in 2003 Every state in 2003 This day in weather history Warnings in Texas, August 2003

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: 5376797, 5376798.