More than an inch of rain fell Monday at the top of the drainage, which leads to the Upper Truckee, according to remote weather sensors.
The snow telemetry at Hagan’s Meadow recorded an inch of rain between 4 and 6 p.m., and 1.2 inches total on Monday evening, prompting a flash flood warning for South Lake Tahoe.
Horse Meadow at the top of Willow Creek recorded .9 inches of rain as of 6 p.m.
Small hail 2-3 inches deep gathered in the median and on the shoulder of Highway 50 in South Lake Tahoe at 7:33 p.m. Water was 6 inches deep near Third Street and Highway 50.
A flash flood warning was issued for South Lake Tahoe at 6 p.m. Monday after Doppler radar showed a storm was pounding the area.
Lightning from the same storm set a single tree on fire on Genoa Peak. Firefighters from Lake Tahoe responded to extinguish the blaze, which was reported to be a tenth of an acre on Tuesday.
The storm traveled southeast from South Lake Tahoe across Carson Valley, where it dropped up to a half-inch of rain in the Gardnerville Ranchos.
In Gardnerville, heavy rain fell for a half hour by 6:40 p.m.
Minden weather watcher Stan Kapler reported receiving .08 inches of rain bringing the month’s total to .61 inches.
The Douglas County seat has received 7.78 inches of moisture so far this water year, short of the 8.89-inch average for the year.
Much of Carson Valley remains in extreme drought, according to the U.S. Drought Monitor, though some spots saw substantial rainfall prompting flooding in the east and north Valley.