California, 1998

Flood and Hail in California, July 7, 1998

July 7, 1998 · NWS SGX · 2 events in 1 county or zone

Moist southeast flow aloft and unstable conditions resulted in scattered thunderstorms over the mountains and deserts of southern California. A particularly heavy cell northwest of Agua Caliente produced hail around one inch in diameter and local flooding.

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
None recorded
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.

What happened

The episode as NWS SGX wrote it up.

Moist southeast flow aloft and unstable conditions resulted in scattered thunderstorms over the mountains and deserts of southern California. A particularly heavy cell northwest of Agua Caliente produced hail around one inch in diameter and local flooding.

The radar

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

Open the radar archive at this moment

Event by event

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

Hail, San Diego

When
July 7, 2:15 PM PST to 2:45 PM PST
Where
San Diego County, 5 mi NW of Agua Caliente Spgs
Measured
1 in hail
Reported by
BROADCAST MEDIA
Coordinates
33.000, -116.370

Flood, San Diego

When
July 7, 2:30 PM PST to 4:00 PM PST
Where
San Diego County, 5 mi NW of Agua Caliente Spgs
Reported by
BROADCAST MEDIA
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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 California in 1998Every state in 1998This day in weather historyWarnings in California, July 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: 5657642, 5657707.