Texas, 2002

Flash Flooding in Texas, November 4, 2002

November 4, 2002 · NWS EWX · 13 events in 13 counties and zones

A cold front moved across South Central Texas on Sunday, November 3. In its wake an area of widespread cold rain and showers developed along and east of the I-35 corridor.

Where it happened

Every event with a place to put it; 13 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
$80,000
Crop damage
None recorded
Events
13

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.

A cold front moved across South Central Texas on Sunday, November 3. In its wake an area of widespread cold rain and showers developed along and east of the I-35 corridor. Although rain amounts in the following 24 hours were not excessive, the maximum bing near 4 inches, the deeply saturated nature of the area soils due to previous rains produced far more severe than usual flash flooding problems. As little as 1 to 2 inches of rain in 3 hour periods were often enough to fill creeks and streams and begin flash flooding over low water crossings. The rain area was concentrated from Georgetown to Lexington to LaGrange and Hallettsville to Floresville, New Braunfels, San Marcos, Austin and back to Georgetown. General rain amounts were near 1 inch with widespread 2 inch totals and isolated maxima near 4 inches. Flash flooding developed in the afternoon and had generally ended by evening.

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 Nov 4, 10:28 AM CST, 2 hours 17 minutes earlier.

Area forecast discussion, Nov 4, 10:28 AM CST, 2 hours 17 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1028 AM CST MON NOV 4 2002

ONLY CHANGES MADE TO UPDATE WERE TO TEMPERATURE HIGHS FOR THIS
AFTERNOON AS COLD ADVECTION AT SURFACE AND CONTINUED WARM ADVECTION
ALOFT/ISENTROPIC UPGLIDE WILL RESULT IN CURRENT TEMPERATURES NOT
MOVING MUCH IF AT ALL. WEATHER AND PROBABILITIES STILL LOOK GOOD.
AT THIS TIME...STILL SEE FLASH FLOOD WATCH BEING EXTENDED INTO
TONIGHT OVER THE EASTERN HALF OF SOUTH CENTRAL TEXAS.

02/06

ONCE AGAIN AN APPROACHING UPR TROF TO WEST AND A GOOD TAP OF DEEP
SUBTROPICAL MOISTURE ACRS CNTRL MEX WILL RESULT IN HIGH RAIN CHCS
OVER THE NEXT 12-24 HOURS.  TWO FEATURES WILL PROVIDE THE LIFT...THE
FIRST BEING ONGOING STG EQ POT TEMP ADV/ISENTROPIC LIFT THIS MORNING
JUST ABV THE COOL SFC AMS...THEN THE UPR TROF TO THE WEST PRODUCING
SYNOPTIC SCALE LIFT ACRS TX THIS AFTN AND TONIGHT.  ALREADY SEEING
CONVECTION OVR WEST TX THAT WILL AFFECT THE WRN CWA BY THE MID TO
LATE MORNING.  COMBINATION OF VERY LOW FFG VALUES...PWS NEAR 2
INCHES...AND NEWD TRAINING OF CONVECTION WILL REQUIRE A FLASH FLOOD
WATCH FOR THE EASTERN SXNS TDA...AND WILL LIKELY NEED TO BE EXTENDED
INTO PART OF TONIGHT.  MODELS IN GOOD AGREEMENT IN ENDING PCPN FROM
THE WEST EARLY TUE AS A DEEP LAYER OF DRY AIR PUNCHES IN FROM THE
WEST BEHIND THE TROF AND THIS VERIFIED IN THE WV IMAGERY NEAR BAJA.
A RETURN TO MORE NORMAL NOV WX FOR WED THRU FRI WITH COOL/DRY CONDS
PREVAILING...A STRONG UPR SHEAR AXIS OVERHEAD MAY MAKE FOR A FEW
HIGH CLOUDS...BUT MOSTLY CLEAR SKIES SHOULD PREVAIL.  NEXT TROF
DIGGING INTO CA FRIDAY WILL BRING A RETURN FLOW TO S TX FRIDAY
NIGHT/SATURDAY WITH A SLIGHT CHC FOR SOME DRZL.  MOSTLY CLOUDY AND A
CHC OF SHOWERS BY SATURDAY NIGHT/SUNDAY AS THE TROF ARRIVES IN WEST
TX.

PRELIMINARY NUMBERS...
AUS 058/051 068/044 983-
DRT 059/053 075/049 85-0
SAT 058/052 072/046 982-

.EWX...FLASH FLOOD WATCH EASTERN THIRD OF CWA THRU TODAY.
Hazardous weather outlook, Nov 4, 5:55 AM CST, 6 hours 50 minutes before
TXZ171>173-183>194-202>209-217>225-228-051200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
555 AM CST MON NOV 4 2002

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.

.DAY ONE...
THERE IS A FLASH FLOOD WATCH FOR IN EFFECT FOR TODAY FOR THE EASTERN
HALF OF SOUTH CENTRAL TEXAS...INCLUDING THE CITIES OF AUSTIN AND SAN
ANTONIO. NUMEROUS THUNDERSTORMS ARE EXPECTED TO TRAIN ACROSS SOUTH
CENTRAL TEXAS TODAY AND TONIGHT. WIDESPREAD ONE INCH RAINS CAN BE
EXPECTED ACROSS THE REGION WITH LOCALLY HEAVY RAINFALL AMOUNTS OF 2
TO 4 INCHES POSSIBLE OVER THE WATCH AREA. NO SEVERE WEATHER IS
EXPECTED TODAY OR TONIGHT. HOWEVER...SOME OF THESE THUNDERSTORMS
COULD PRODUCE SMALL HAIL.

.SPOTTER CALL TO ACTION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED. HOWEVER SPOTTERS MAY BE
CALLED UPON TO RELAY FLOOD INFORMATION IF A WARNING IS ISSUED.

.DAYS TWO THROUGH SEVEN...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

The radar

The Austin/San Antonio radar (KEWX), 39 km away, was scanning. The volume nearest the first event began at 18:47 UTC.

Open the radar archive at this moment

Event by event

13 flash flood. Local standard time, as filed.

Flash Flood, Hays

When
November 4, 12:45 PM CST to 8:00 PM CST
Where
Hays County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
30.058, -98.031 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 2.5 inches produced flash flooding from early afternoon into the evening hours. No damage was indicated.

Flash Flood, Lee

When
November 4, 1:00 PM CST to 9:00 PM CST
Where
Lee County, Countywide
Reported by
GENERAL PUBLIC
Coordinates
30.311, -96.966 (the zone’s center; the record gives no point)

General 1 to 2 inch rainfall with isolated totals to 3.5 inches near Dime Box produced flash flooding from early afternoon into the evening hours. No damage was indicated.

Flash Flood, Travis

When
November 4, 1:15 PM CST to 8:00 PM CST
Where
Travis County, Countywide
Property damage
$10,000
Reported by
BROADCAST MEDIA
Coordinates
30.335, -97.782 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 4 inches at Austin-Bergstrom Airport produced flash flooding through the mid afternoon into early evening. County roads had minor damage.

Flash Flood, Guadalupe

When
November 4, 1:15 PM CST to 10:00 PM CST
Where
Guadalupe County, Countywide
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
29.583, -97.949 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 3.5 inches near Seguin and Kingsbury produced flash flooding from early afternoon into the evening hours. Only minor damage to county roads was reported.

Flash Flood, Bastrop

When
November 4, 2:00 PM CST to 10:30 PM CST
Where
Bastrop County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
30.104, -97.312 (the zone’s center; the record gives no point)

General 1 to 2 inch rainfall with isolated totals to 3.5 inches near Elgin and Smithville produced flash flooding from early afternoon into the evening hours. Only minor road damage was indicated.

Flash Flood, Caldwell

When
November 4, 2:00 PM CST to 9:00 PM CST
Where
Caldwell County, Countywide
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
29.837, -97.620 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 3.5 inches near Dime Box produced flash flooding from early afternoon into the late evening hours. Minor damage was reported to county roads.

Flash Flood, Fayette

When
November 4, 2:30 PM CST to 11:30 PM CST
Where
Fayette County, Countywide
Property damage
$15,000
Reported by
LAW ENFORCEMENT
Coordinates
29.877, -96.920 (the zone’s center; the record gives no point)

General 1 to 2 inch rainfall with isolated totals to 3.5 inches at LaGrange and nearly 4 inches at Flatonia produced flash flooding from early afternoon through the late evening hours. Spotty damage was reported to area roads and bridges.

Flash Flood, Comal

When
November 4, 3:30 PM CST to 8:00 PM CST
Where
Comal County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
29.808, -98.278 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 3 inches produced flash flooding from mid afternoon into the evening hours. No significant damage was indicated.

Flash Flood, Gonzales

When
November 4, 3:30 PM CST to 11:30 PM CST
Where
Gonzales County, Countywide
Property damage
$15,000
Reported by
LAW ENFORCEMENT
Coordinates
29.457, -97.492 (the zone’s center; the record gives no point)

General 1 to 2 inch rainfall with isolated totals to near 4 inches between Gonzales and Flatonia produced flash flooding from mid afternoon through late evening. Minor damage occurred to roads.

Flash Flood, Wilson

When
November 4, 3:30 PM CST to 9:00 PM CST
Where
Wilson County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
29.174, -98.087 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to near 3 inches north of Stockdale produced flash flooding from early afternoon into the evening hours. No significant damage was indicated.

Flash Flood, Williamson

When
November 4, 4:00 PM CST to 7:00 PM CST
Where
Williamson County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
30.648, -97.601 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to near 3 inches between Taylor and Elgin produced flash flooding from late afternoon into the early evening hours. No significant damage was indicated.

Flash Flood, De Witt

When
November 4, 7:30 PM CST to 11:30 PM CST
Where
De Witt County, Countywide
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
29.082, -97.357 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 3 inches west of Yoakum produced flash flooding from evening until near midnight. Minor damage to area roads was reported.

Flash Flood, Lavaca

When
November 4, 7:30 PM CST to 11:30 PM CST
Where
Lavaca County, Countywide
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
29.384, -96.930 (the zone’s center; the record gives no point)

General 1 inch rainfall with isolated totals to 3 inches between Hallettsville and Flatonia produced flash flooding from evening until near midnight. Only minor damage was reported to area roads.

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 2002Every state in 2002This day in weather historyWarnings in Texas, November 2002

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: 5323260, 5323262, 5323261, 5323263, 5323264, 5323265, 5323266, 5323267, 5323268, 5323332, 5323331, 5323333, 5323334.