Flight: 8:52 pm

17 minutes after sunset (13 mins before dark) ~19% of the colony flew – some went 6 miles W while most went 8 miles NE (only 6% of those went to altitude) on S Winds at 7 mph – had been southerly 10-17 mph all afternoon with gusts to 23 mph around 2:30 pm , Fair, Temp 84°F, Dew Point 69°F rising, 16 Cooling Degree Days, Cloud Base 3420′, RH 61% rising, Heat Index 788F, BP 29.96 rising, sea level 1013.3 mb rising, bats viewable until 10:05 pm under streetlights