California, 1999

Cold in California, July 3 to 4, 1999

July 3 to 4, 1999 · NWS MFR · 2 events in 2 counties and zones

A Frost Warning was issued for Modoc county and eastern Siskiyou county. Reported low temperatures were mostly in the 30s, so frost probably did occur, although it was not reported.

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 MFR wrote it up.

A Frost Warning was issued for Modoc county and eastern Siskiyou county. Reported low temperatures were mostly in the 30s, so frost probably did occur, although it was not reported. Additionally, lows in the 30s were reported from western Siskiyou county, but no warning was issued for that area.

Event by event

2 cold/wind chill. Local standard time, as filed.

Cold/Wind Chill, Siskiyou

When
July 3, 2:00 PM PST to July 4, 8:00 AM PST
Where
Siskiyou forecast zone
Reported by
OFFICIAL NWS OBS.

See below.

Cold/Wind Chill, Modoc T X E

When
July 3, 2:00 PM PST to July 4, 8:00 AM PST
Where
Modoc T X E forecast zone
Reported by
OFFICIAL NWS OBS.

See below.

What these are

Cold/Wind Chill
Cold or wind chill below warning criteria that caused deaths, injuries or damage.

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 2026-10-01. Each event’s entry at NCEI: 5716223, 5716224.