A Heavy Snow Warning was issued for the Mt. Shasta City area (CAZ082) at 1649 PST on 12/8 and cancelled at 0924 PST on 12/9.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 episode as NWS MFR wrote it up.
A Heavy Snow Warning was issued for the Mt. Shasta City area (CAZ082) at 1649 PST on 12/8 and cancelled at 0924 PST on 12/9. The criteria for heavy snow in that zone is 5" in 12 hours or 7" in 24 hours.This appears to have verified.
The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
Spotter SY49 northeast of Mt. Shasta City reported 5 inches of new snow.
MHSC1 reported 5.5 inches of snow at Mt. Shasta City.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 1999Every state in 1999This day in weather historyWarnings in California, December 1999
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: 5720492, 5720493.