A deep shortwave trough moved through the region from early on the 24th through the morning hours of the 25th. This weather system brought moderate to heavy rain in the lower valleys of western Nevada and snow to the Sierra Nevada.

Heavy Rain in DOUGLAS, NEVADA
From 24-DEC-18 08:07:00 to 25-DEC-18 08:07:00 (PST-8)
Location: GARDNERVILLE
Reported by: Trained Spotter

Trained weather spotter 3 miles west-southwest of Gardnerville Ranchos reported 0.87 inches of rainfall in a 24-hour period from 24 December 0807PST to 25 December 0807PST.

Heavy Rain in LYON, NEVADA
From 24-DEC-18 07:15:00 to 25-DEC-18 07:15:00 (PST-8)
Location: CHURCHILL
Reported by: Mesonet

Mesonet EW8905 5 miles west-southwest of Stagecoach reported 0.68 inches of rainfall in a 24-hour period from 24 December 0715PST to 25 December 0715PST. Mesonet elevation 4543 feet MSL.

Heavy Rain in PERSHING, NEVADA
From 24-DEC-18 06:37:00 to 25-DEC-18 06:37:00 (PST-8)
Location: TREGO
Reported by: Mesonet

Mesonet BRPN2 near Black Rock Playa reported 0.73 inches of rainfall in a 24-hour period from 24 December 0637PST to 25 December 0637PST. Mesonet elevation 3911 feet MSL.

Heavy Rain in WASHOE, NEVADA
From 24-DEC-18 16:09:00 to 25-DEC-18 16:09:00 (PST-8)
Location: HAROLDS TRAPSHOOT SP
Reported by: Trained Spotter

Trained weather spotter 10 miles north-northeast of Spanish Springs reported 1.42 inches of rainfall in a 24-hour period from 24 December 1609PST to 25 December 1609PST.

Heavy Rain in WASHOE, NEVADA
From 24-DEC-18 07:20:00 to 25-DEC-18 07:20:00 (PST-8)
Location: HAROLDS TRAPSHOOT SP
Reported by: Mesonet

Mesonet station D4148 3 miles north of Spanish Springs reported 1.13 inches of rainfall in a 24-hour period from 24 December 0720PST to 25 December 0720PST. Mesonet elevation 4495 feet MSL.

Heavy Rain in CARSON CITY (C), NEVADA
From 24-DEC-18 07:00:00 to 25-DEC-18 07:00:00 (PST-8)
Location: CARSON CITY
Reported by: Trained Spotter

Trained weather spotter 1 mile northeast of Carson City reported 0.96 inches of rainfall in a 24-hour period from 24 December 0700PST to 25 December 0700PST.

Heavy Rain in CHURCHILL, NEVADA
From 24-DEC-18 06:47:00 to 25-DEC-18 06:47:00 (PST-8)
Location: (NFL)NAS FALLON
Reported by: Mesonet

Mesonet station DEDN2 near Dead Camel Mountain reported 0.5 inches of rainfall in a 24-hour period from 24 December 0647PST to 25 December 0647PST. Mesonet elevation 4549 feet MSL.

Heavy Rain in WASHOE, NEVADA
From 24-DEC-18 07:00:00 to 25-DEC-18 07:00:00 (PST-8)
Location: GALENA CREEK
Reported by: Mesonet

Mesonet LTVN2 4 miles south-southeast of Mount Rose Summit reported 1 inch of rainfall in a 24-hour period from 24 December 0700PST to 25 December 0700PST. Mesonet elevation 6492 feet MSL.

Heavy Rain in WASHOE, NEVADA
From 24-DEC-18 10:00:00 to 24-DEC-18 21:59:00 (PST-8)
Location: LEMMON VLY
Reported by: Official NWS Observations

Official NWS observations reported 0.81 inches of rainfall in approximately a 12-hour period from 24 December 1000PST to 24 December 2159PST. Elevation 4974 feet MSL.

Heavy Rain in WASHOE, NEVADA
From 24-DEC-18 07:00:00 to 25-DEC-18 07:00:00 (PST-8)
Location: SPARKS
Reported by: COOP Observer

CO-OP observer SRKN2 in Sparks reported 0.75 inches of rainfall in a 24-hour period from 24 December 0700PST to 25 December 0700PST.

Heavy Snow in GREATER LAKE TAHOE AREA, NEVADA
From 24-DEC-18 07:00:00 to 25-DEC-18 07:00:00 (PST-8)
Reported by: Public

Twenty-four-hour snowfall amounts ranged from 5 inches at lake level in the Tahoe Basin to as much as a 9-15 inches (Incline Village and Mount Rose Ski Area) at the higher elevations around Lake Tahoe.