Hot august night. couldnt sleep. smoking a cigarette and looking at the stars.No clouds or thunderstorm during this event. clear sky. flash of light made me look higher, and i saw a blue beam that goes from left to right across the whole sky. my jaw dropped and i wanted to wake up my husband but i was afraid to go away and miss something. but it did not happend again. no thunder, no storm, no lightning in a circle of 600km that night. clear sky with about 30c° no airplanes or something else. no military base in area.