These are the weather observations taken at the National Weather Service office in Spokane WA, located on Rambo Rd north of Fairchild Air Force Base. TX and TN are the Max and Min temperature for the past 24 hours. PP is the precipitation in the last 6 hours. SF is the 6 hour snow fall. SD is the snow depth on the ground. SWE is the water equivalent of the snow on the ground is measured any time there is 2 or more inches of snow on the ground.