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 been flying for about 7 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity. However, flights are normally diminished with a Waxing Gibbous / Full moon.
Sunset: 7:43 pm Dark: 8:13 pm (10-20 min). earlier if cloudy) Sunrise: 7:12 am
Monday September 8, 2025
Flight: 8:30 pm
Scouts: 8:22 pm
46 mins after sunset (way after dark) only ~24% of the colony flew 8 miles SSE on E Winds at 7 mph – had been northeasterly 6-12 mph all afternoon with gusts to 20 mph around 5:30pm, Fair, Temp 83°F, Dew Point 55°F falling, 12 Cooling Degree Days, Cloud Base 6384′, RH 38% rising, Heat Index 82°F, BP 30.00 rising, sea level pressure 1014.9 mb rising, bats viewable until 10:37 pm under streetlights
Sunday September 7, 2025
Granger remains offline, scattered showers dissipating as they head E of IH35, Bracken 0:58, Frio Stuart 1:00, Camden 1:02, SchertzClemens 1:06, SanAngelo BalconesHeights 1:10, Huber SanMarcos SMCenterpoint NewBraunfels SCUCISD TX28 410&IH35 SALutheran 1:16, Seguin 1:18, OldTunnel CongressScouts Dittmar SanAngelo 1:20, WellsBranch Congress(~53% of the colony flew 12 miles SSW -12% of them went to altitude) CrestwoodIH35 Wimberley Lockhart SMRB(Slayden) 1:24, FosterRd 1:26, Chiroptorium McNeil D’Hanis 1:28, GrapeCreek 1:40,
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 been flying for about 7 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity. However, flights are normally diminished with a Waxing Gibbous / Full moon.
Sunset: 7:45 pm Dark: 8:15 pm (10-20 min). earlier if cloudy) Sunrise: 7:11 am
Sunday September 7, 2025
Flight: 8:16 pm
Scouts: 8:12 pm
30 mins after sunset (well after dark on a Mostly Cloudy evening) ~53% of the colony flew 12 miles SSW (12% of them went to altitude) on NE Winds at 3 mph – had been northeasterly 5-9 mph with Light Rain most of the afternoon, Mostly Cloudy, Temp 74°F, Dew Point 71°F steady, 9 Cooling Degree Days, Cloud Base 684′, RH 91% rising, Heat Index 75°F, BP 30.09 rising, sea level pressure 1018.1 mb rising, bats viewable until 10:25 pm under streetlights
Saturday September 6, 2025
Hill Country storms from the W approach IH10 at flight time, Granger continues offline, Bracken 0:16, Frio 0:28, OldTunnel 0:58, BalconesHeights Camden 1:02, Huber SanPedro SALutheran 1:06, Chiroptorium SanMarcos CanyonLake NewBraunfels Seguin SMRB(Slayden) 1:10, Dittmar Wimberley Lockhart SMCenterpoint 1:14, Fern 1:16, DavisBlowout BeeCavePark Congress(only ~23% of the colony flew 8 miles SSE) 1:18, McNeil Onion Kyle 1:22, Buda SanAngelo 1:26, FosterRd 1:28, GrapeCreek 1:36,