Name: Flash Flood in Texas, August 30, 2001
Start: 2001-08-30T18:00
End: 2001-08-30T20:00
Location: Texas

Where it happened

Every event with a place to put it; 1 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: $30,000
Crop damage: $50,000
Events: 1

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.

Scattered showers and thunderstorms moved southward from the San Antonio area into Atascosa County in the late afternoon, producing general 1 inch rainfall. They also created a swath of 4 to 5 inch totals across the central part of the county that generally followed Hwy97 from Charlotte to Jourdanton to Pleasanton.

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 30, 2:05 PM CST, 3 hours 55 minutes earlier.

Area forecast discussion, Aug 30, 2:05 PM CST, 3 hours 55 minutes before

SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
305 PM CDT THU AUG 30 2001

SHRA/TSRA CONT TO BE ANCHORED/TRAINING OVER S CENTRAL TX AS TROPICAL
CONVECTION FEEDS NWD INTO THE AREA FROM THE MID COASTAL PLAINS.
AMS CONVECTION DEVELOPING THE OVER THE WESTERN CWA THIS AFTN AHEAD
OF A S/W DROPPING SEWD TWDS THE BIG BEND AREA.  ETA MODELS DEVELOP
SECONDARY MCS TO THE WEST AND INTO THE WRN HILL COUNTRY LATE TONIGHT
AS AN INVERTED TROF/BOUNDARY SAGS INTO THE NRN CWA.  WITH WATER
VAPOR INDEED SHOWING A S/W OUT WEST AND WITH A BOUNDARY ALREADY IN
THE SJT CWA...WILL ADJUST THE FFA WESTWARD INTO THE HILL COUNTRY FOR
TONIGHT AND CONT THE WATCH THRU FRIDAY.  2 TO 4 INCHES OF ADDITIONAL
RAIN LIKELY IN THE WATCH AREA TONIGHT WITH ISOLD 4 TO 6 AS
CONVECTION OVR S CNTRL TX REMAINS ANCHORED/BACK BUILDS AHEAD OF S/W
AND PSBL SECOND MCS DEVELOPS TO THE NW AND PROPAGATES ACROSS THE NRN
CWA.

LONGER TERM...AVN INDICATED SOME MID LEVEL DRYING AS UPR TROF EDGES
EAST BY LATE SAT INTO SUN...TO WILL TAPER POPS DOWN TO LOW CHC BY
SUNDAY.  CONT SLGT CHC MON-THU AS UPR RDG BUILDS IN WITH A SLIGHT
WEAKNESS REMAINING OVER TX AND POPS/TEMPS RETURN CLOSER TO NORMS.

PRELIMS...
AUS TE 071/083 073/086 8744
DRT EE 075/085 074/090 4422
SAT TE 073/083 074/087 8744

.EWX...FLASH FLOOD WATCH THROUGH FRIDAY S CNTRL TX AND THE
       ADJACENT HILL COUNTRY.

1/13/23

The radar

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

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Atascosa

When: August 30, 6:00 PM CST to 8:00 PM CST
Where: Atascosa County, Countywide
Property damage: $30,000
Crop damage: $50,000
Reported by: LAW ENFORCEMENT
Coordinates: 28.894, -98.527 (the zone’s center; the record gives no point)

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 2001 Every state in 2001 This day in weather history Warnings in Texas, August 2001

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: 5260991.