Flight: 8:28 pm

-10 minutes after sunset (well before dark) ~46% of the colony flew – most went 12 miles SSW while some went 6 miles NE (~29% of the total climbed E to altitude) into E Winds at 7 mph  – had been southeasterly 3-8 mph all afternoon gusting to 17 mph around 4:30, A Few Clouds, Temp 90°F, Dew Point 67°F rising, 21 Cooling Degree Days, Cloud Base 5244, RH 47% rising, Heat Index 93°F, BP 29.90 rising, sea level pressure 1011.3 mb rising, bats viewable until 9:51 pm under streetlights