Flight: 8:12 pm

12 mins after sunset (~8 minutes before dark on an Overcast evening) ~30% of the colony flew – some went 6 miles SSW while most went 12 miles SE (~31% of the total went to altitude) into S Winds at 8 mph – had been easterly 6-10 mph much of the afternoon, Overcast, Temp 84°F, Dew Point 71°F falling, 18 Cooling Degree Days, Cloud Base 2964′, RH 65% rising, Heat Index 89°F, BP 30.04 rising, sea level pressure 1016.3 mb rising, bats viewable until 9:57 pm under streetlights