Spring is decidedly not in the air throughout Alberta, with a spring storm bringing high winds and heavy snow that left many motorists stranded overnight on a northern highway.  "I took all the clothes of [my] suitcase and kind of made a makeshift little blanket nest to keep warm," said Lance Kane, who told CBC on Friday he has been stuck on Highway 63 south of Fort McMurray since about 7:30 p.m. Thursday.  "You kind of lie down, but you also don't want to fall asleep in case it gets moving and you [become] the guy then holding it up." Sgt. Sabrina Clayton from the Wood Buffalo RCMP detachment said that as of 2:30 p.m. on Friday, about 300 vehicles were stranded — about 100 close to Fort McMurray, and an additional 200 closer to Mariana Lake. She shared that most vehicles were no longer occupied, as some people escaped by walking along the highway, crossing to the southbound side of the road when it was still open and then getting picked up.…