A stronger winter storm brought another round of heavy snow, strong winds, and travel impacts to Sierra passes 9-11 December. Peak snowfall totals occurred through the period of 10-11 December with 2-4 feet of snow widely reported in Sierra locations and northeast CA.
Every event with a place to put it; 8 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 REV wrote it up.
A stronger winter storm brought another round of heavy snow, strong winds, and travel impacts to Sierra passes 9-11 December. Peak snowfall totals occurred through the period of 10-11 December with 2-4 feet of snow widely reported in Sierra locations and northeast CA. Storm total snowfall amounts even exceeded 5 feet over parts of the Sierra crest. Several inches of new snow also fell over some western Nevada valleys with a foot plus falling across some eastern Sierra foothill areas as well. Strong winds having gusts 65-75 mph in far western NV resulted in reports of damage across parts of Sparks during the early morning of 10 Dec.
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 Reno, NV wrote its last area forecast discussion before the first event at Dec 10, 12:56 AM PST, 6 hours 4 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
5 heavy snow, 3 high wind. Local standard time, as filed.
The public located at base elevation of the Mammoth Mountain Ski Resort and the June Mountain Ski Resort both reported 24 hour snowfall totaling 30 inches.
The public (twitter posting) located at Glenshire-Devonshire in Nevada county, CA, reported 24 hour snowfall totaling 24 inches.
The public (Facebook posting) located at the Virginia Lakes resort reported 24 hour snowfall totaling 39 inches.
The public (Facebook posting) located at Portola, CA, and 3.0 mi SE of Graeagle, CA, both reported 24 hour snowfall totaling 12 inches.
Mesonet station (MTH09) Mammoth Mountain located at Gondola-1, TWR 6, reported a peak wind gust of 98 mph.
Mesonet site (HVRTM) Blue Streak Weather station located 1.0 mi NNW of the Heavenly Ski Summit, CA reported a peak wind gust of 103 mph.
Mesonet site (PIEC1) Pierce Weather station located 5.0 mi NNW of Antelope Lake, CA, reported a peak wind gust of 92 mph.
CO-OP observer (TAAC1-Tohoma), and COCORAHS station (CA-ED-9) located 0.5 mi S of Tahoma, CA, both reported snowfall totaling 9 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2022Every state in 2022This day in weather historyWarnings in California, December 2022
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: 1071339, 1071336, 1071343, 1071334, 1071329, 1071331, 1071332, 1071344.