California, 1999

Flash Flood and Damaging Wind in California, July 28, 1999

July 28, 1999 · NWS VEF · 2 events in 1 county or zone

1 flash flood, 1 thunderstorm wind, 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
$110,000
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.

The radar

The Edwards AFB radar (KEYX), 129 km away, was scanning. The volume nearest the first event began at 23:23 UTC.

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Event by event

1 flash flood, 1 thunderstorm wind. Local standard time, as filed.

Flash Flood, San Bernardino

When
July 28, 2:35 PM PST to 4:00 PM PST
Where
San Bernardino County, Twenty Nine Palms
Property damage
$100,000
Reported by
LAW ENFORCEMENT
Coordinates
34.841, -116.178 (the zone’s center; the record gives no point)

Intense rainfall in the vicinity of Joshua Tree and Twentynine Palms turned roads into rivers and filled washes to capacity for a couple hours during the afternoon. Highway 62 was partially washed out and three motorists had to be rescued after their vehicles were caught in flood waters. Twelve homes in Twentynine Palms were damaged before the water began to recede between 5 and 6 p.m. PDT.

Thunderstorm Wind, San Bernardino

When
July 28, 3:25 PM PST
Where
San Bernardino County, 3 mi E of Twenty Nine Palms
Property damage
$10,000
Reported by
TRAINED SPOTTER
Coordinates
34.130, -116.000

Strong wind gusts from nearby thunderstorms ripped a roof off a house just east of Twentynine Palms.

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.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 1999Every state in 1999This day in weather historyWarnings in California, July 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 2026-09-30. Each event’s entry at NCEI: 5715820, 5715821.