Texas, 1999

Flash Flood and Hail in Texas, April 12, 1999

April 12, 1999 · NWS MAF · 3 events in 1 county or zone

2 hail, 1 flash flood, as filed by the National Weather Service.

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

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The toll

Deaths
0
Injuries
0
Property damage
$40,000
Crop damage
None recorded
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.

The radar

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

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Event by event

2 hail, 1 flash flood. Local standard time, as filed.

Hail, Brewster

When
April 12, 6:29 PM CST
Where
Brewster County, Castolon
Measured
0.75 in hail
Reported by
PARK/FOREST SERVICE
Coordinates
29.130, -103.520

Hail, Brewster

When
April 12, 7:44 PM CST to 7:55 PM CST
Where
Brewster County, 17 mi SE of Panther Junction
Measured
2.5 in hail
Property damage
$40,000
Reported by
PARK/FOREST SERVICE
Coordinates
29.130, -103.100

This storm crossed the Rio Grande moving northeast over Castolon. The storm then turned right and displayed supercell characteristics. By the time the storm reached Rio Grande Village tennis ball size hail was falling as the storm proceeded straight east. The storm soon crossed into Mexico.

Flash Flood, Brewster

When
April 12, 7:50 PM CST to 9:00 PM CST
Where
Brewster County, Southeast Portion
Reported by
PARK/FOREST SERVICE
Coordinates
29.812, -103.252 (the zone’s center; the record gives no point)

This supercell also dumped copious amounts of rain that caused flash flooding on Blue Creek. One water crossing on the park road to Castolon briefly had 3 feet of water crossing it.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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 1999Every state in 1999This day in weather historyWarnings in Texas, April 1999

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: 5693850, 5693851, 5693852.