It’s 34 degrees in Big Lake, Alaska, today – practically balmy; perfect weather for a snowmobile race. The 2010 Alaska National Guard Iron Dog kicked off today, and two Alaska Army National Guard soldiers are among the competitors. The event, which runs through Feb. 27, is touted as the the world’s longest and toughest snowmobile race. Warrant Officer Rick Fleming and Staff Sgt. Elaine Jackson will represent the Guard in the trail class portion of the race, from Big Lake to Nome. “Our goal is to be the first trail class team to reach Nome and for Jackson to be…