Another winter storm dumped record-breaking rain on Reno and pummeled the Sierra Nevada with 3 feet of snow Tuesday. No injuries were reported but the storm snarled traffic during yesterday’s commute in Reno and Sparks, and forced the closure of Interstate 80 over the top of the Sierra in whiteout conditions. Nearly an inch of rain fell Tuesday at Reno-Tahoe International Airport, breaking the old record of three-quarters of an inch set in 1936. Reno has already received more rain since January 1 than it normally does in an entire year — more than 8.6 inches compared to the annual average of 7.4. The immediate threat of significant flooding has ended around Reno and Carson City as well as rural counties to the south and east.