A trough of low pressure along the West Coast moved inland late on the 21st bringing gusty winds through the 22nd and high elevation snowfall to Eastern California and the Sierra Nevada the 22nd through 23rd. While not a huge snowmaker, this storm hit at a busy travel time.

High Wind in MONO, CALIFORNIA
From 22-DEC-19 10:00:00 to 22-DEC-19 10:01:00 (PST-8)
Magnitude: 54.00 MG
Reported by: Mesonet

Mesonet SE089 1 mile southwest of Conway Summit (elevation 8822 feet MSL) recorded a 62 mph wind gust.

High Wind in MONO, CALIFORNIA
From 22-DEC-19 10:40:00 to 22-DEC-19 10:41:00 (PST-8)
Magnitude: 54.00 MG
Reported by: Mesonet

Mesonet LIB06 2 miles northwest of Walker (elevation 5484 feet MSL) recorded a 62 mph wind gust.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 10:00:00 to 22-DEC-19 10:01:00 (PST-8)
Magnitude: 53.00 MG
Reported by: Buoy

Mesonet Buoy JPL04 3 miles southeast of Dollar Point on Lake Tahoe (elevation 6233 feet MSL) recorded a 61 mph wind gust.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 09:00:00 to 22-DEC-19 09:01:00 (PST-8)
Magnitude: 50.00 MG
Reported by: Mesonet

Mesonet HMSCR 2 miles south of Heavenly Valley (elevation 8800 feet MSL) recorded a 58 mph wind gust.

Winter Weather in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 07:00:00 to 23-DEC-19 07:00:00 (PST-8)
Reported by: Public

Around 10 inches of snow fell at lake level near and west of California Highway 89 and 12 to 15 inches of snow fell above 7000 feet west of the highway between the morning of the 22nd and the morning of the 23rd. Below 7000 feet east of California Highway 89 and south of Interstate 80, up to 8 inches of snow fell. South of US Highway 50, 7 inches of snow fell at Meyers and 1 inch fell at Heavenly Ski Resort.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 09:00:00 to 22-DEC-19 09:01:00 (PST-8)
Magnitude: 90.00 MG
Reported by: Mesonet

Mesonet SIBSV Siberia atop Squaw Summit measured a wind gust of 104 mph (elevation 8700 feet MSL). Several gusts in the previous 24 hours ranged from 58 to 102 mph.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 21-DEC-19 23:00:00 to 21-DEC-19 23:01:00 (PST-8)
Magnitude: 98.00 MG
Reported by: Mesonet

Mesonet SUMAM on Ward Peak measured a wind gust of 113 mph (elevation 8483 feet MSL). Several gusts in the previous 24 hours ranged from 58 to 102 mph.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 09:15:00 to 22-DEC-19 09:16:00 (PST-8)
Magnitude: 52.00 MG
Property damage: 5.00K
Reported by: Trained Spotter

Trained weather spotter and HAM radio operator near Tahoe-Donner reported that their 60-70 foot tower was blown down by winds. The spotter's elevation is 6400 ft MSL. The nearby Tahoe-Donner RAWS at 7400 ft MSL reported south sustained winds of 31 miles per hour gusting to 60 miles per hour near the time of the tower toppling over.

High Wind in MONO, CALIFORNIA
From 22-DEC-19 05:51:00 to 22-DEC-19 05:52:00 (PST-8)
Magnitude: 72.00 MG
Reported by: Mesonet

Mesonet MTH03 atop Mammoth Mountain (elevation 11053 feet MSL) recorded an 83 mph wind gust.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 05:33:00 to 22-DEC-19 05:34:00 (PST-8)
Magnitude: 56.00 MG
Reported by: RAWS

RAWS TADC1 Tahoe-Donner (elevation 7399 feet MSL) recorded a 65 mph wind gust.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 22-DEC-19 08:20:00 to 22-DEC-19 08:21:00 (PST-8)
Magnitude: 55.00 MG
Reported by: Mesonet

Mesonet FW4812 at Echo Lake (elevation 7434 feet MSL) recorded a 63 mph wind gust.