Flight: 8:30 pm

-4 minutes after sunset (26 mins before dark) ~22% of the colony flew – some went 8 miles SE while most went 8 miles NE (~15% of the total climbed to altitude) on S Winds at 8 mph – had been Light & Variable all afternoon , A Few Clouds, Temp 91°F, Dew Point 64°F steady, 19 Cooling Degree Days, Cloud Base 6156, RH 41% rising, Heat Index 93°F, BP 29.99 rising, sea level pressure 1014.3 mb rising, bats viewable until 9:43 pm under streetlights