A Snow Advisory was issued for California zone CAZ082 at 0351 PST on 01/23 and extended to zones CAZ080/081 at 2108 PST on 01/23. It was cancelled at 0950 PST on 01/24.
Every event with a place to put it; 6 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 Snow Advisory was issued for California zone CAZ082 at 0351 PST on 01/23 and extended to zones CAZ080/081 at 2108 PST on 01/23. It was cancelled at 0950 PST on 01/24. A Winter Storm Warning was issued for California zones CAZ080/082 above 2500 feet at 0355 PST on 01/25/01. The warning altitude was lowered to 1500 feet at 1515 PST and cancelled at 2110 PST on 01/25/01.From the above reports, it is evident that the first Snow Advisory should have been a Heavy Snow Warning, and that warning should have just run into the one that was issued on 01/25.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Medford, OR wrote its last area forecast discussion before the first event at Jan 24, 2:30 AM PST, 3 hours 30 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
6 heavy snow. Local standard time, as filed.
A California Department of Water Resources snow measuring device reported 17 inches of snow between 1200 PST on 01/23 and 0600 on 01/24.
Observer 2.5 miles NW of Mt. Shasta City at 3650 feet reported 9.5 inches of snow and 3 inches between 0430 and 0730 PST.
Spotter SY 39 6 miles west of Black Butte reported 11 inches of snow at 4000 feet between 0700 on 01/24 and 0700 on 01/25.
Spotter SY 31 4 miles NW of Mt. Shasta City at 3800 feet reported 12 inches of snow between 1000 on 1/24 and 1000 on 1/25.
12 inches of snow in 20 hours was reported on Mt. Shasta at 6700 feet.
Mt. Shasta coop observer reported 8 inches of snow during the day.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2001Every state in 2001This day in weather historyWarnings in California, January 2001
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: 5227754, 5227752, 5227749, 5227750, 5227751, 5227753.