Temperatures across central and southeast Wyoming will be slightly warmer today, increasing to the 20's by this afternoon.  As this warmer air mass moves in, winds will increase with gusting between 35 and 50 mph this afternoon and tonight.   A weak disturbance will bring light snow to parts of northern Wyoming this afternoon.  The  southern mountain ranges (Snowy and Sierra Madres) and some of the higher terrain over southeast Wyoming could see brief snow showers tonight and overnight.  Temperatures will become warmer for Wednesday and Thursday.