Texas, 1998

Flood in Texas, October 17 to 20, 1998

October 17 to 20, 1998 · NWS EWX · 1 event in 1 county or zone

Flooding along the Medina River, Olmos Creek, Leon Creek, Helotes Creek, and Salado CreekThe Medina River in Bexar County produced moderate lowland flooding from above Lacoste to above the San Antonio gauge at Highway 281. 5 feet, where flood stage is 16 feet.

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
100
Property damage
$8.0 million
Crop damage
$80,000
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.

Flooding along the Medina River, Olmos Creek, Leon Creek, Helotes Creek, and Salado CreekThe Medina River in Bexar County produced moderate lowland flooding from above Lacoste to above the San Antonio gauge at Highway 281. At Highway 281, it crested at 49.5 feet, where flood stage is 16 feet. The new Dos Rios sewerage plant had several feet of water in it. Several homes also flooded downstream near Losoya. Flooded continued along the Medina until early Monday morning in the Somerset area.At Dresden Drive in San Antonio, Olmos Creek flooded numerous homes above Loop 410 near Lockhill-Selma Street. Downstream, the McAllister Freeway flooded above Olmos Dam. The bottom of the pool is 680 feet, the freeway begins flooding at 713 feet, and water goes through the emergency spillway at 728 feet. The freeway had about seven feet of water over it, and flooded several days.Flooding in western Bexar County along Leon Creek resulted in a rise estimated at near 23 feet (the gauge flooded early) with major flooding in the plain. Water was up to 3 feet deep in the jet engine test facility at Kelly AFB. Water covered Westover Bridge and washed away many trailers and mobile homes in the Camargo Park area.. Helotes Creek, also in western Bexar County, rose to near 7 feet, flooding several secondary roads, low bridges and crossing from the headwaters to Braun Road. Also in Bexar County, Salado Creek at NE Loop 410 rose through 21.1 feet, where flood stage is 12 feet, producing flow was over the railings of Loop 410. The Los Patios Shopping Center which had never flooded before had four feet of water in it, and some of the structures washed downstream. A campground downstream above IH 10 on Gembler Road flooded horribly. RV trailers and permanent log cabins were strewn about like so many wads of paper over most of the campground. Numerous homes were flooded all along Salado Creek near the flood plain from below Loop 1604 to the San Antonio River confluence. At SE Loop 13, the gauge flooded while rising through 32.0 feet. Here, flood stage is 18 feet. The Wheatley area near South Cross Street and Pecan Valley was devastated, with many houses destroyed or severely damaged.

The radar

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

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Bexar

When
October 17, 8:00 AM CST to October 20, 12:00 PM CST
Where
Bexar forecast zone
Injuries
100 direct, 0 indirect
Property damage
$8.0 million
Crop damage
$80,000
Reported by
OTHER FEDERAL AGENCY
Coordinates
29.449, -98.520 (the zone’s center; the record gives no point)

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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, October 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: 5672615.