A strong shortwave slammed into the Sierra on the evening of the 16th and brought widespread heavy snow to the Sierra along with strong winds. The lower valleys of northeast California received moderate to heavy spillover rainfall from this second shortwave.

Heavy Rain in PLUMAS, CALIFORNIA
From 16-JAN-19 08:00:00 to 17-JAN-19 08:00:00 (PST-8)
Location: PORTOLA
Reported by: Mesonet

Mesonet DVSC1 near Lake Davis reported 2.16 inches of rainfall in a 24 hour period from 16 January 0800PST to 17 January 0800PST. Mesonet elevation 5768 feet MSL.

Heavy Rain in LASSEN, CALIFORNIA
From 16-JAN-19 08:30:00 to 17-JAN-19 08:30:00 (PST-8)
Location: WESTWOOD
Reported by: Mesonet

Mesonet AT488 3 miles west-southwest of Westwood reported 2.32 inches of rainfall in a 24 hour period from 16 January 0830PST to 17 January 0830PST. Mesonet elevation 4944 feet MSL.

Heavy Rain in PLUMAS, CALIFORNIA
From 16-JAN-19 08:00:00 to 17-JAN-19 08:00:00 (PST-8)
Location: GENESEE
Reported by: Mesonet

Mesonet ANTC1 near Antelope Lake reported 2.24 inches of rainfall in a 24 hour period from 16 January 0800PST to 17 January 0800PST. Mesonet elevation 5026 feet MSL.

Heavy Rain in LASSEN, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Location: SUSANVILLE
Reported by: CoCoRaHS

CoCoRaHS station CA-LS-1 3 miles south-southwest of Susanville reported 2.34 inches of rainfall in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Rain in EL DORADO, CALIFORNIA
From 16-JAN-19 03:53:00 to 17-JAN-19 03:53:00 (PST-8)
Location: (TVL)TAHOE VLY
Reported by: ASOS

ASOS TVL, South Lake Tahoe Airport reported 1.19 inches of rainfall in a 24 hour period from 16 January 0353PST to 17 January 0353PST.

Heavy Rain in PLACER, CALIFORNIA
From 16-JAN-19 08:00:00 to 17-JAN-19 08:00:00 (PST-8)
Location: TAHOE CITY
Reported by: COOP Observer

CO-OP observer in Tahoe City reported 1.91 inches of rainfall in a 24 hour period from 16 January 0800PST to 17 January 0800PST.

Heavy Snow in LASSEN/EASTERN PLUMAS/EASTERN SIERRA, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Reported by: Trained Spotter

Trained weather spotter 5 miles west-northwest of Susanville reported 9 inches of snowfall with a liquid water equivalent of 2.05 inches in a 24 hour period from 16 January 0700PST to 17 January 0700PST. The liquid water equivalent includes a period of rainfall. Spotter elevation 5072 feet MSL.

Heavy Rain in SIERRA, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Location: SIERRAVILLE
Reported by: CoCoRaHS

CoCoRaHS station CA-SI-2 1 mile southwest of Sierraville reported 2.95 inches of rainfall in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Rain in LASSEN, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Location: DOYLE
Reported by: Trained Spotter

Trained weather spotter 1 mile west of Doyle reported 2.43 inches of rainfall in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

High Wind in MONO, CALIFORNIA
From 16-JAN-19 14:23:00 to 16-JAN-19 14:24:00 (PST-8)
Magnitude: 54.00 MG
Reported by: Mesonet

Mesonet UNDC1 3 miles south-southeast of Conway Summit measured a wind gust of 62 mph (elevation 7032 feet MSL).

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Reported by: Mesonet

Mesonet VGAC1 3 miles west-southwest of Conway Summit reported 9 inches of snow at an elevation of 9409 feet MSL in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Reported by: Public

Mammoth Mountain Ski Area reported 18 inches of snow at an elevation of 9014 feet MSL in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Rain in MONO, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Location: TOMS PLACE
Reported by: CoCoRaHS

CoCoRaHS station CA-MN-4 4 miles southeast of Toms Place reported 1.88 inches of rainfall in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Rain in MONO, CALIFORNIA
From 16-JAN-19 07:49:00 to 17-JAN-19 07:49:00 (PST-8)
Location: BRIDGEPORT BRYANT AR
Reported by: RAWS

Bridgeport RAWS BPOC1 reported 0.93 inches of rainfall in a 24 hour period from 16 January 0749PST to 17 January 0749PST.

Heavy Rain in MONO, CALIFORNIA
From 16-JAN-19 03:55:00 to 17-JAN-19 03:55:00 (PST-8)
Location: (MMH)MAMMOTH LAKES A
Reported by: AWOS

AWOS MMH, Mammoth Yosemite Airport reported 0.73 inches of rainfall in a 24 hour period from 16 January 0355PST to 17 January 0355PST.

Heavy Snow in MONO, CALIFORNIA
From 17-JAN-19 08:35:00 to 18-JAN-19 08:35:00 (PST-8)
Reported by: Public

Mammoth Mountain Ski Area reported 9 inches of snowfall in a 24 hour period from 17 January 0835PST to 18 January 0835PST. Elevation 9044 feet MSL.

Heavy Snow in MONO, CALIFORNIA
From 17-JAN-19 09:00:00 to 18-JAN-19 09:00:00 (PST-8)
Reported by: Trained Spotter

A trained weather spotter 1 mile southwest of Toms Place reported 6 inches of snowfall with a liquid water equivalent of 0.70 inches during a 24 hour period from 17 January 0900PST to 18 January 0900PST.

Heavy Rain in MONO, CALIFORNIA
From 16-JAN-19 03:52:00 to 17-JAN-19 03:52:00 (PST-8)
Location: WALKER
Reported by: ASOS

ASOS BAN, 3 miles north-northeast of Leavitt Meadows reported 1.57 inches of rainfall in a 24 hour period from 16 January 0352PST to 17 January 0352PST.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 17-JAN-19 01:00:00 to 17-JAN-19 01:01:00 (PST-8)
Magnitude: 120.00 MG
Reported by: Mesonet

Mesonet measured sustained winds of 116 mph gusting to 138 mph atop Ward Mountain (elevation 8483 feet MSL).

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 17-JAN-19 00:30:00 to 17-JAN-19 00:31:00 (PST-8)
Magnitude: 64.00 MG
Reported by: Mesonet

Mesonet station SCTAM at Alpine Meadows measured a wind gust of 74 mph (elevation 8120 feet MSL).

High Wind in MONO, CALIFORNIA
From 16-JAN-19 14:00:00 to 16-JAN-19 14:01:00 (PST-8)
Magnitude: 59.00 MG
Reported by: Mesonet

Mesonet SE089 1 mile southwest of Conway Summit measured a wind gust of 68 mph (elevation 8822 feet MSL).

Heavy Snow in GREATER LAKE TAHOE AREA, CALIFORNIA
From 16-JAN-19 07:00:00 to 18-JAN-19 07:00:00 (PST-8)
Reported by: Public

Above 7000 feet MSL near and west of California Highway 89, 27 to 49 inches of snow fell between the 17th and 18th. At Northstar Ski Resort, 40 inches of snow fell at an elevation of 6900 feet MSL. South of US Highway 50 along the southeast portion of Lake Tahoe, 19 inches of snow fell at Heavenly Ski Resort.

Heavy Rain in NEVADA, CALIFORNIA
From 16-JAN-19 05:35:00 to 16-JAN-19 05:35:00 (PST-8)
Location: (TRK)TRUCKEE/TAHOE A
Reported by: AWOS

AWOS TRK, Truckee Airport reported 2.00 inches of rainfall in a 24 hour period from 16 January 0535PST to 17 January 0535PST.

High Wind in MONO, CALIFORNIA
From 17-JAN-19 03:30:00 to 17-JAN-19 03:31:00 (PST-8)
Magnitude: 143.00 MG
Reported by: Mesonet

Mesonet atop Mammoth Mountain (elevation 11053 feet MSL) reported sustained winds of 132 mph gusting to 164 mph.

High Wind in GREATER LAKE TAHOE AREA, CALIFORNIA
From 17-JAN-19 00:45:00 to 17-JAN-19 00:46:00 (PST-8)
Magnitude: 120.00 MG
Reported by: Mesonet

Mesonet measured sustained winds of 90 mph gusting to 138 mph atop Squaw Summit (elevation 8700 feet MSL).

Heavy Rain in EL DORADO, CALIFORNIA
From 16-JAN-19 08:30:00 to 17-JAN-19 08:30:00 (PST-8)
Location: MEYERS
Reported by: Mesonet

Mesonet E3758 1 mile north-northeast of Meyers reported 1.67 inches of rainfall in a 24 hour period from 16 January 0830PST to 17 January 0830PST. Mesonet elevation 6300 feet MSL.

Heavy Snow in MONO, CALIFORNIA
From 16-JAN-19 07:00:00 to 17-JAN-19 07:00:00 (PST-8)
Reported by: Public

June Mountain Ski Area reported 13 inches of snow at an elevation of 7545 feet MSL and 36 inches of snow at an elevation of 10090 feet MSL in a 24 hour period from 16 January 0700PST to 17 January 0700PST.

Heavy Rain in PLACER, CALIFORNIA
From 16-JAN-19 08:37:00 to 17-JAN-19 08:37:00 (PST-8)
Location: TAHOE CITY
Reported by: Mesonet

Mesonet THOC1 1 mile west of Tahoe City reported 1.27 inches of rainfall in a 24 hour period from 16 January 0837PST to 17 January 0837PST. Mesonet elevation 6772 feet MSL.