Friday May 31, 2024

Flight:  9:10 pm
Notes:

~43 minutes after sunset (after dark) ~32% of the colony flew 6 miles E (~37% flew to altitude) on NE Winds at 9 mph – had been southerly 6-10 mph most of the afternoon before swinging to the NE around 7pm, Temp 80°F, Dew Point 71°F falling, Visibility 10 miles, Mostly Cloudy, 13 Cooling Degree Days, Cloud Base 2052′, RH 74% rising, Heat Index 83°F, BP 29.94 rising, bats viewable until 9:43 pm under streetlights