Temperatures are on the rise across the desert Southwest with widespread 100 degree readings from Palm Springs, CA to Phoenix, AZ. Death Valley reached 111 today it will very similar tomorrow. Visitors to the region should be prepared for the heat and drink plenty of water. Near the coast and mountains, much cooler and very pleasant temperatures in the 70s and 80s.
Winter will make a final appearance in the West the next few days a cool moist weather system moves in. This could surprise some travelers on I-80, I-15, and I-84 from Nevada to Colorado and Wyoming. Travelers to Yellowstone too may find 8 inches or more of snow. Snow in May is by no means unprecedented, but snow possibly down to some valley floors is certainly unusual. Salt Lake City, Idaho Falls, Elko, and Laramie all stand a good chance of seeing accumulations.
Late season snow could catch travelers off-guard on I-80 Wednesday in Nevada. A couple inches are possible even in Elko. This late snow seems unusual, and it is, but is not unprecedented. Elko has had over 7″ of snow as late as May 21, but this goes back to the 1970s. Two inches has fallen in Elko in May as recently as 2015.