Texas, 1998

Flash Flooding in Texas, September 11, 1998

September 11, 1998 · NWS EWX · 3 events in 3 counties and zones

Tropical showers and thunderstorms redeveloped in bands to the west and northwest of weakening Tropical Storm Frances on Friday. Rain amounts were less than on Thursday night, but averaged from 2 to 3 inches with isolated totals near 4 inches.

Where it happened

Every event with a place to put it; 3 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
$21,000
Crop damage
$10,000
Events
3

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.

Tropical showers and thunderstorms redeveloped in bands to the west and northwest of weakening Tropical Storm Frances on Friday. Rain amounts were less than on Thursday night, but averaged from 2 to 3 inches with isolated totals near 4 inches. Flash flooding developed in the early morning hours over Karnes and Wilson Counties, as the activity spread northwestward. Heavy rainfall and flooding ended by the mid afternoon.

The radar

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

Open the radar archive at this moment

Event by event

3 flash flood. Local standard time, as filed.

Flash Flood, Karnes

When
September 11, 4:30 AM CST to 11:00 AM CST
Where
Karnes County, Countywide
Property damage
$3,000
Crop damage
$5,000
Reported by
EMERGENCY MANAGER
Coordinates
28.906, -97.859 (the zone’s center; the record gives no point)

Flash Flood, Wilson

When
September 11, 7:30 AM CST to 1:00 PM CST
Where
Wilson County, Countywide
Property damage
$3,000
Crop damage
$5,000
Reported by
EMERGENCY MANAGER
Coordinates
29.174, -98.087 (the zone’s center; the record gives no point)

Flash Flood, Bexar

When
September 11, 10:30 AM CST to 3:00 PM CST
Where
Bexar County, Countywide
Property damage
$15,000
Reported by
EMERGENCY MANAGER
Coordinates
29.449, -98.520 (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 1998Every state in 1998This day in weather historyWarnings in Texas, September 1998

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: 5669577, 5669578, 5669579.