A stronger storm system moved across the Sierra Nevada mainly on the 16th, with lighter snow showers and icy roads lingering into the morning of the 17th. This storm produced strong winds, but it also produced more significant precipitation that previous storms, mainly as snow.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:30:00 to 17-JAN-20 07:30:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 2 miles northwest of Meyers reported 10.5 inches of snowfall with a liquid water equivalent of 0.92 inches in a 24-hour period from 16 January 0730PST to 17 January 0730PST at an elevation of 6298 feet MSL.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 09:30:00 to 16-JAN-20 14:30:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 5 miles west-northwest of Susanville reported 10.5 inches of snowfall in a 5-hour period from 0930PST to 1430PST on 16 January at an elevation of 5072 feet MSL. Spotter reported receiving snowfall rates of up to 3 to 4 inches per hour in that time period.

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

Mammoth Mountain Ski Resort reported 10 inches of snowfall at an elevation of 9014 feet MSL in a 24-hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

June Mountain Ski Area reported 8 inches of snowfall at their base elevation of 7545 feet MSL and 12 inches of snowfall at their summit elevation of 10090 feet MSL in a 24-hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: County Official

A Truckee School District Official reported 8 to 10 inches of snowfall around the Truckee vicinity in a 24-hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 10:30:00 to 16-JAN-20 14:30:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 1-mile north-northwest of Portola reported 8 inches of snowfall in a 4-hour period from 1030PST to 1430PST on 16 January at an elevation of 4884 feet MSL. Spotter reported receiving snowfall rates of up to 2 inches per hour in that time period.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:13:00 to 16-JAN-20 17:13:00 (PST-8)
Reported by: Public

The public reported 7 inches of new snowfall in South Lake Tahoe via Twitter in a 10-hour period from 0713PST to 1713PST on 16 January at an elevation of 6237 feet MSL.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 08:15:00 to 17-JAN-20 08:15:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter at Eagle Lake reported 6.5 inches of snowfall in a 24-hour period from 16 January 0815PST to 17 January 0815PST at an elevation of 5147 feet MSL.

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-20 08:36:00 to 17-JAN-20 08:36:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter in Lee Vining reported 5.2 inches of new snowfall in a 24-hour period from 16 January 0836PST to 17 January 0836PST at an elevation of 6797 feet MSL.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 06:30:00 to 17-JAN-20 06:30:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 3 miles west-southwest of Westwood reported 13.5 inches of snowfall in a 24-hour period from 16 January 0630PST to 17 January 0630PST at an elevation of 4983 feet MSL.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

Homewood Mountain Ski Resort reported 13 inches of snowfall in a 24-hour period from 16 January 0700PST to 17 January 0700PST at an elevation of 7880 feet MSL.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 07:27:00 to 16-JAN-20 19:27:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 5 miles west-northwest of Susanville reported 12 inches of snowfall in a 12-hour period from 0727PST to 1927PST on 16 January at an elevation of 5072 feet MSL. Spotter also reported receiving 4 inches of snowfall in one hour in a convective snow band.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:22:00 to 17-JAN-20 07:22:00 (PST-8)
Reported by: County Official

Truckee-Tahoe Airport official reported 11 inches of snowfall with a liquid water equivalent of 0.88 inches in a 24-hour period from 16 January 0722PST to 17 January 0722PST at an elevation of 5900 feet MSL.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 10:33:00 to 16-JAN-20 10:34:00 (PST-8)
Magnitude: 60.00 MG
Reported by: RAWS

RAWS TADC1 at Tahoe Donner measured a wind gust of 69 mph (elevation 7399 feet MSL).

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 10:30:00 to 16-JAN-20 10:31:00 (PST-8)
Magnitude: 99.00 MG
Reported by: Mesonet

Mesonet SIBSV Siberia atop Squaw Summit measured a wind gust of 114 mph (elevation 8700 feet MSL). Several gusts in the previous 6 hours were well over 65 mph.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 10:45:00 to 16-JAN-20 10:46:00 (PST-8)
Magnitude: 101.00 MG
Reported by: Mesonet

Mesonet SUMAM on Ward Peak measured a wind gust of 116 mph (elevation 8483 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 02:40:00 to 16-JAN-20 02:41:00 (PST-8)
Magnitude: 53.00 MG
Reported by: Mesonet

Mesonet LIB05 1 mile south of Topaz Lake reported a 61 mph wind gust (elevation 5047 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 12:40:00 to 16-JAN-20 12:41:00 (PST-8)
Magnitude: 55.00 MG
Reported by: Mesonet

Mesonet SE406 along Twin Lakes Road measured a 63 mph wind gust (elevation 6543 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 14:28:00 to 16-JAN-20 14:29:00 (PST-8)
Magnitude: 97.00 MG
Reported by: Mesonet

Mesonet MTH03 Mammoth Summit measured a 112 mph wind gust (elevation 11053 feet MSL). Several gusts in the previous 3 hours were well over 65 mph.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 10:45:00 to 16-JAN-20 10:46:00 (PST-8)
Magnitude: 56.00 MG
Reported by: Mesonet

Mesonet RHTAM (Roundhouse Top) mid-slope on Ward Mountain measured a wind gust of 65 mph (elevation 7880 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 15:20:00 to 17-JAN-20 15:21:00 (PST-8)
Magnitude: 88.00 MG
Reported by: Mesonet

Mesonet MTH22 Mammoth Summit measured a 101 mph wind gust (elevation 10067 feet MSL). Several gusts in the previous 2 hours were well over 65 mph.

High Wind in MONO, CALIFORNIA
From 16-JAN-20 14:31:00 to 16-JAN-20 14:32:00 (PST-8)
Magnitude: 58.00 MG
Reported by: Mesonet

Mesonet MTH04 Mammoth Base measured a 67 mph wind gust (elevation 8915 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 14:31:00 to 16-JAN-20 14:32:00 (PST-8)
Magnitude: 58.00 MG
Reported by: Mesonet

Mesonet MTH13 Mammoth Chair 1, Tower 5, measured a 67 mph wind gust (elevation 9005 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-20 18:34:00 to 16-JAN-20 18:35:00 (PST-8)
Magnitude: 55.00 MG
Reported by: Mesonet

Mesonet MTH14 Mammoth Chair 1, Tower 9, measured a 63 mph wind gust (elevation 9385 feet MSL).

High Wind in MONO, CALIFORNIA
From 17-JAN-20 03:49:00 to 17-JAN-20 03:50:00 (PST-8)
Magnitude: 74.00 MG
Reported by: Mesonet

Mesonet MTH02 Mammoth Chair 22 measured an 85 mph wind gust (elevation 10067 feet MSL).

Avalanche in GREATER LAKE TAHOE AREA, CALIFORNIA
From 17-JAN-20 11:00:00 to 17-JAN-20 11:00:00 (PST-8)
Reported by: Public

A large avalanche occurred between the Scott Chute and the Promised Land at Alpine Meadows Resort. 2 individuals were involved with one fatal injury with the other skier having severe lower-body injuries. A strong winter storm had hit in the previous 12-24 hours with 25 inches at the summit and over 15 inches at the base. Weather was mostly cloudy with high clouds at the time of the avalanche and light winds.

Avalanche in GREATER LAKE TAHOE AREA, CALIFORNIA
From 17-JAN-20 11:00:00 to 17-JAN-20 11:00:00 (PST-8)
Reported by: Park/Forest Service

The Sierra Avalanche Center reported a full burial slab avalanche along the north side of Independence Lake. One skier of three triggered the slab avalanche about 40 feet from the crown line. The crown size varied from 10 to 48 inches and went about 100 feet wide. The slide went from an elevation of about 8400 feet MSL down to 7400 feet MSL. The skier tried to ski out at a fast 45 degrees to the left but was immediately buried. This person was buried for a total of 45 minutes. The skier's only injuries were some bruising and a small cut. The two other skiers were left unscathed about 200 feet from the bottom edge of the avalanche.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

Alpine Meadows Ski Resort reported 15 inches of snowfall at an elevation of 6200 feet and 25 inches at an elevation of 8000 feet MSL in a 24-hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

Northstar Ski Resort reported 22 inches of snowfall in a 24-hour period from 16 January 0700PST to 17 January 0700PST at an elevation of 6900 feet MSL.

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-20 07:00:00 to 17-JAN-20 07:00:00 (PST-8)
Reported by: Public

Heavenly Ski Resort reported 18 inches of snowfall in a 24-hour period from 16 January 0700PST to 17 January 0700PST at an elevation of 7499 feet MSL.

High Wind in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-20 09:30:00 to 16-JAN-20 09:31:00 (PST-8)
Magnitude: 56.00 MG
Reported by: RAWS

RAWS RNYC1 Rice Canyon measured a wind gust of 65 mph (elevation 6943 feet MSL).