8:15 pm – 8:45 pm

 when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong wind or rain in the area, If conditions look good (low or no wind), get there early!
The Congress bat pups have taken to the wing, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 8:14 pm
Dark: 8:44 pm (10-20 min). earlier if cloudy)
Sunrise: 6:57 am

Flight: 8:28 pm

-11 minutes after sunset (well before dark) ~47% of the colony flew – most went 12 miles SSW while some went 6 miles NE (~29% of the total climbed E to altitude) on SE Winds at 15 mph  – had been southerly 7-10 mph most of the afternoon with gusts to 28 mph around 7:30 pm, A Few Clouds, Temp 88°F, Dew Point 70°F falling, 21 Cooling Degree Days, Cloud Base 4104, RH 55% rising, Heat Index 93°F, BP 29.94 rising, sea level pressure 1012.5 mb rising, bats viewable until 10:13 pm under streetlights

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

Flight: 8:32 pm
Scouts: 8:24 pm

-15 minutes after sunset (just before dark with the hazy sky) ~25% of the colony flew – most went 10 miles SSW while some went 6 miles N (~31% of the total climbed E to altitude) on SE Winds at 9 mph  – had been SE 7-13 mph most of the afternoon with gusts to 21 mph around 6:30pm, A Few Clouds, Temp 91°F, Dew Point 68°F rising, 22 Cooling Degree Days, Cloud Base 5244, RH 47% rising, Heat Index 95°F, BP 29.90 rising, sea level pressure 1011.1 mb rising, bats viewable until 10:19 pm under streetlights

8:20 pm – 8:50 pm

 when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong wind or rain in the area, If conditions look good (low or no wind), get there early!
The Congress bat pups have taken to the wing, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 8:17 pm
Dark: 8:47 pm (10-20 min). earlier if cloudy)
Sunrise: 6:55 am

Flight: 8:36 pm

-15 minutes after sunset (just before dark with the hazy sky) ~24% of the colony flew – most went 10 miles SSW while some went 6 miles E (~29% of the total climbed E to altitude) on SE Winds at 6 mph  – had been southerly 7-13 mph all afternoon with gusts to 18 mpph around 2:30pm , A Few Clouds, Temp 88°F, Dew Point 67°F rising, 21 Cooling Degree Days, Cloud Base 4788, RH 50% rising, Heat Index 91°F, BP 29.99 steady, sea level pressure 1014.4 mb rising, bats viewable until 10:21 pm under streetlights