Flight: 8:36 pm

-8 minutes after sunset (wells before dark ) only ~10% of the colony flew 8 miles NE  (only 8% of the those went to altitude) on S Winds at 5 mph – had been southerly 7-16 mph all afternoon with gusts to 26 mph around 3:30 pm, Mostly Cloudy, Temp 80°F, Dew Point 70°F steady, 22 Cooling Degree Days, Cloud Base 2280, RH 71% rising, Heat Index 83°F, BP 30.11 steady, sea level pressure 1018.4 mb falling, bats viewable until 10:23 pm under streetlights