Drivers should exercise extreme caution this morning, if traveling on roads between the Cass and Adair County lines. Law enforcement reports several downed power lines, with multiple posts/poles sucked out of the ground. A severe thunderstorm warning was issued for the area at around 12:45-a.m.  One motorist drove over a downed power line on Glendale Road between 750th and 760th just before 4-a.m. The National Weather Service is sending a survey team to assess the damage and determine whether it was straight line winds or a possible tornado that caused the destruction.