Texas, 2001

Flash Flooding in Texas, September 5, 2001

September 5, 2001 · NWS EWX · 2 events in 2 counties and zones

Thunderstorms that formed north of Leakey near noon spread slowly southward, producing general 1 to 2 inch rainfall, with totals of up to 4 inches from southeast of Leakey to near Vanderpool in western Bandera County. Widespread flash flooding was reported over low water crossings along the Real-Bandera County line first in the western part of the county, then spreading eastward across the…

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

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The toll

Deaths
0
Injuries
0
Property damage
$55,000
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.

Thunderstorms that formed north of Leakey near noon spread slowly southward, producing general 1 to 2 inch rainfall, with totals of up to 4 inches from southeast of Leakey to near Vanderpool in western Bandera County. Widespread flash flooding was reported over low water crossings along the Real-Bandera County line first in the western part of the county, then spreading eastward across the county by noon.

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 Sep 5, 10:45 AM CST, 2 hours 45 minutes earlier.

Area forecast discussion, Sep 5, 10:45 AM CST, 2 hours 45 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1145 AM CDT WED SEP 5 2001

AFTER SOME DELIBERATION DECIDED TO KEEP THE FLASH FLOOD WATCH IN ITS
PREVIOUS LOCATION BUT REDUCED IT IN TIME TO JUST THIS AFTERNOON WITH
AN OPTION TO EXTEND IT INTO TONIGHT IF THE NEED DICTATES.  SOME
RECONFIGURATION IN AREAL COVERAGE MAY ALSO BE REQUIRED.  UPPED POPS
FOR THIS AFTERNOON BASED ON ONGOING CONVECTIVE DEVELOPMENT.  MODELS
AGREE THAT WE MAY HAVE ANOTHER NIGHT OR DAY OF ACTIVITY BEFORE
THINGS SETTLE DOWN THURSDAY NIGHT AND FRIDAY.

.EWX...FLASH FLOOD WATCH THIS AFTERNOON SOUTH CENTRAL
TEXAS.

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, Real

When
September 5, 1:30 PM CST to 3:00 PM CST
Where
Real County, East Portion
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
29.832, -99.822 (the zone’s center; the record gives no point)

Flash Flood, Bandera

When
September 5, 1:30 PM CST to 6:00 PM CST
Where
Bandera County, Countywide
Property damage
$50,000
Reported by
LAW ENFORCEMENT
Coordinates
29.747, -99.246 (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 2001Every state in 2001This day in weather historyWarnings in Texas, September 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: 5266188, 5266189.