Get ready to ride the Minnesota temperature roller coaster once again.
Temperatures started in the relatively balmy for February 30s Friday around the Twin Cities and southern Minnesota. But a cold front swept through Minnesota Friday. And temperatures have already fallen into the signal digits above zero in the north as of Friday afternoon.
Subzero wind chills will visit most of Minnesota overnight into Saturday morning once again. Air temperatures will bottom out as cold as -20 degrees around Ely in the north. The Twin Cities and the south will bottom in the low teens above zero Saturday morning. (map at top of post)…