Flight: 9:00 pm

Notes: ~24 minutes after sunset (just before dark) only ~17% of the colony flew – some went 8 miles WNW while most went 4 miles NE (~12% of the total went to altitude) on S Winds at 10 mph – had been southeasterly 5-12 mph all afternoon, Visibility 10 miles, Partly Cloudy, Temp 87°F, Dew Point 70°F steady, 19 Cooling Degree Days, Cloud Base 3876′, RH 57% rising, Heat Index 92°F, BP 29.97 rising, sea level 1013.6mb rising, bats viewable until 10:23 pm under streetlights