Another low pressure system moved slowly from the central California coast to western Nevada on the 24th and 25th. This system produced two periods of showers and thunderstorms where rainfall totals were maximized across much of eastern California from Alpine County northward to Lassen County and western Nevada from Douglas County northward to the Oregon border. The first period occurred during the late afternoon and evening hours of the 24th, and the second occurred during the morning of the 25th.

Heavy Rain in PLUMAS, CALIFORNIA
From 24-MAY-18 09:14:00 to 25-MAY-18 09:14:00 (PST-8)
Location: PORTOLA
Reported by: COOP Observer

COOP observer measured 0.97 inches of rainfall in a 24-hour period from 24 May 0914PST to 25 May 0914PST.

Heavy Rain in EL DORADO, CALIFORNIA
From 24-MAY-18 10:00:00 to 25-MAY-18 10:00:00 (PST-8)
Location: (TVL)TAHOE VLY
Reported by: ASOS

ASOS Station TVL, South Lake Tahoe Airport (elevation 6257 feet) reported 0.97 inches of rainfall in a 24-hour period from 24 May 1000PST to 25 May 1000PST.

Heavy Rain in NEVADA, CALIFORNIA
From 24-MAY-18 09:26:00 to 25-MAY-18 09:26:00 (PST-8)
Location: (TRK)TRUCKEE/TAHOE A
Reported by: AWOS

The Truckee Airport AWOS (elevation 5899 feet) measured 1.05 inches of heavy rain in a 24-hour period from 24 May 0926PST to 25 May 0926PST.

Heavy Rain in EL DORADO, CALIFORNIA
From 24-MAY-18 06:00:00 to 25-MAY-18 06:00:00 (PST-8)
Location: TAHOE PARADISE
Reported by: CoCoRaHS

CoCoRaHS station CA-ED-20, 1 mile northwest of Meyers reported 1.24 inches of rainfall in a 24 hour period from 24 May 0600PST to 25 May 0600PST.

Heavy Rain in PLUMAS, CALIFORNIA
From 24-MAY-18 08:34:00 to 25-MAY-18 08:34:00 (PST-8)
Location: BLAIRSDEN
Reported by: Mesonet

Mesonet station MWKC1, 1 mile east of Blairsden (elevation 5149 feet) reported 1.25 inches of rainfall in a 24-hour period from 24 May 0834PST to 25 May 0834PST.

Heavy Rain in SIERRA, CALIFORNIA
From 24-MAY-18 09:20:00 to 25-MAY-18 09:20:00 (PST-8)
Location: SIERRAVILLE
Reported by: Mesonet

Mesonet station D9436, 1 mile southwest of Sierraville (elevation 5100 feet) reported 1.52 inches of rainfall in a 24-hour period from 24 May 0920PST to 25 May 0920PST.

Heavy Rain in ALPINE, CALIFORNIA
From 24-MAY-18 08:00:00 to 25-MAY-18 08:00:00 (PST-8)
Location: MARKLEEVILLE
Reported by: Mesonet

Mesonet station SPCC1, 2 miles southeast of Grover Hot Springs (elevation 6062 feet) reported 1.60 inches of rainfall in a 24-hour period from 24 May 0800PST to 25 May 0800PST.

Heavy Rain in PLACER, CALIFORNIA
From 24-MAY-18 09:18:00 to 25-MAY-18 09:18:00 (PST-8)
Location: TAHOE CITY
Reported by: COOP Observer

COOP observer in Tahoe City measured 1.72 inches of rainfall in a 24-hour period from 24 May 0918PST to 25 May 0918PST.

Heavy Rain in PLACER, CALIFORNIA
From 24-MAY-18 09:31:00 to 25-MAY-18 09:31:00 (PST-8)
Location: HOMEWOOD
Reported by: Trained Spotter

Trained weather spotter 1 mile north-northwest of Homewood reported 1.92 inches of rainfall in a 24-hour period from 24 May 0931PST to 25 May 0931PST.

Debris Flow in PLACER, CALIFORNIA
From 24-MAY-18 18:00:00 to 24-MAY-18 18:22:00 (PST-8)
Location: BIG CHIEF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Placer County Sheriff reported that two debris flows occurred on Alpine Meadows Road near the Five Lakes Creek Trailhead. No injuries were reported and no one was caught in the flow. No damage estimates were available.

Debris Flow in ALPINE, CALIFORNIA
From 24-MAY-18 16:11:00 to 24-MAY-18 17:48:00 (PST-8)
Location: LOOPE
Flood cause: Heavy Rain / Burn Area
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

California Highway Patrol reported multiple debris flows near and south of the intersection of California Highway 4 and California Highway 89 that occurred after heavy rainfall. These debris flows occurred within the area of the Washington Fire burn scar. No damage estimates were available.