Flight: 8:30 pm

25 mins after sunset (after dark on an Partly Cloudy evening) ~50% of the colony rolled the dice on the storm dissipating to the E and flew 14 miles SSW (~38% of them went to altitude) on SE Winds at 8 mph – had been northeasterly 8-13 mph all afternoon increasing to 20 mph with gusts to 31 mph around 5:30pm, Partly Cloudy, Temp 85°F, Dew Point 69°F steady, 19 Cooling Degree Days, Cloud Base 3648′, RH 59% rising, Heat Index 89°F, BP 29.92 rising, sea level pressure 1012.2 mb rising, bats viewable until 11:05 pm under streetlights

8:05 pm – 8:35 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 (like last night).

Sunset: 8:05 pm
Dark: 8:35 pm (10-20 min). earlier if cloudy)
Sunrise: 7:02 am

Flight: 8:28 pm

22 mins after sunset (after dark on an Overcast evening) ~1,565,993 flew 12 miles SSW (~34% of them went to altitude) Winds Calm – had been Light & Variable early turning N at 16 mph with a Thunderstorm & Light Rain and gusts to 31 mph around 2:30pm, Overcast, Temp 77°F, Dew Point 71°F steady, 19 Cooling Degree Days, Cloud Base 1368′, RH 82% rising, Heat Index 79°F, BP 29.89 falling, sea level pressure 1011.0 mb falling, bats viewable until 10:41 pm under streetlights

Flight: 8:10 pm

~3 mins after sunset (7 minutes before dark on a Mostly Cloudy evening) ~1,438,337 flew 18 miles S (~34% of them went to altitude) on NE Winds at 12 mph – had been northerly 12-13 mph early – increasing to N at 32 mph around 4:30pm, Mostly Cloudy, Temp 88°F, Dew Point 72°F falling, 20 Cooling Degree Days, Cloud Base 3648′, RH 59% rising, Heat Index 95°F, BP 29.89 steady, sea level pressure 1011.0 mb rising, bats viewable until 9:23 pm under streetlights

8:05 pm – 8:35 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 (like last night).

Sunset: 8:06 pm
Dark: 8:36 pm (10-20 min). earlier if cloudy)
Sunrise: 7:01 am

Flight: 8:10 pm

~3 mins after sunset (7 minutes before dark on a Mostly Cloudy evening) ~1,438,337 flew 18 miles S (~34% of them went to altitude) on NE Winds at 12 mph – had been northerly 12-13 mph early – increasing to N at 32 mph around 4:30pm, Mostly Cloudy, Temp 88°F, Dew Point 72°F falling, 20 Cooling Degree Days, Cloud Base 3648′, RH 59% rising, Heat Index 95°F, BP 29.89 steady, sea level pressure 1011.0 mb rising, bats viewable until 9:23 pm under streetlights

8:05 pm – 8:35 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: 8:07 pm
Dark: 8:37 pm (10-20 min). earlier if cloudy)
Sunrise: 7:01 am