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Friday September 5, 2025

8:10 pm – 8:40 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 been flying for about 6 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 7:48 pm
Dark: 8:18 pm (10-20 min). earlier if cloudy)
Sunrise: 7:10 am

Thursday September 4, 2025

Flight: 8:38 pm
Scouts: 8:30 pm

49 mins after sunset (way after dark) only ~22% of the colony flew – some went 12 miles WNW while most went 10 miles NE on S Winds at 5 mph – had been southerly 5-8 mph most of the afternoon, Mostly Cloudy, Temp 90°F, Dew Point 55°F rising, 18 Cooling Degree Days, Cloud Base 7980′, RH 31% rising, Heat Index 88°F, BP 29.77 steady, sea level pressure 1007.0 mb rising, bats viewable until 10:09 pm under streetlights

Wednesday September 3, 2025

Bracken 1:02, Frio Stuart Fern 1:10, NewBraunfels TX28 1:18, SanMarcos SMCenterpoint SCUCISD SchertzClemens TX28 SanPedro Seguin 1:20, OldTunnel 1:22, Chiroptorium Huber 1:24, Wimberley Lockhart SMRB(Slayden) 1:28, Congress(~44% of the colony flew – some went 4 miles SW while most went 12 miles SE ~21% of them went to altitude) Dittmar Uvalde NuecesRR SmythCrossing 1:30, Temple DavisBlowout SanAngelo 1:38, FosterRd GrapeCreek 1:42,

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Thursday September 4, 2025

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 been flying for about 6 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 7:50 pm
Dark: 8:20 pm (10-20 min). earlier if cloudy)
Sunrise: 7:09 am

Wednesday September 3, 2025

Flight: 8:22 pm

31 mins after sunset (about at dark) ~44% of the colony flew – some went 4 miles SW while most went 12 miles SE (~21% of them went to altitude) on N Winds at 7 mph – had been northerly 9-15 mph all afternoon with gusts to 21 mph around 4:30pm, Partly Cloudy, Temp 88°F, Dew Point 56°F rising, 18 Cooling Degree Days, Cloud Base 7296′, RH 34% rising, Heat Index 86°F, BP 29.85 steady, sea level pressure 1009.8 mb rising, bats viewable until 10:35 pm under streetlights

Tuesday September 2, 2025

Bracken 1:04, Frio 1:08, SchertzClemens TX28 SanPedro 1:14, Stuart 1:18, 410&IH35 Camden 1:20, Fern 1:22, OldTunnel Chiroptorium SanMarcos SMCenterpoint NewBraunfels SALutheran Seguin 1:24, Congress(~59% of the colony flew – some went 6 miles WSW while most went 12 miles SSE ~39% of them went to altitude) 1:28, Huber McNeil 1:30, SMRB(Slayden) Floresville 1:32, DavisBlowout Ney D’Hanis Knippa NuecesRR 1:36, SanAngelo 1:42, FosterRd 1:46,

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Wednesday September 3, 2025

8:00 pm – 8:30 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 been flying for about 6 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 7:51 pm
Dark: 8:21 pm (10-20 min). earlier if cloudy)
Sunrise: 7:09 am

Tuesday September 2, 2025

Flight: 8:20 pm

28 mins after sunset (about at dark) ~59% of the colony flew – some went 6 miles WSW while most went 12 miles SSE (~39% of them went to altitude) on NE Winds at 8 mph – had been northerly 9-17 mph all afternoon with gusts to 22 mph around 6:30pm, A Few Clouds, Temp 90°F, Dew Point 61°F steady, 19 Cooling Degree Days, Cloud Base 6612′, RH 38% rising, Heat Index 90°F, BP 29.92 steady, sea level pressure 1012.1 mb rising, bats viewable until 10:37 pm under streetlights

Monday September 1, 2025

Spotty storm cells heading S along IH35 & US281 dissipating toward flight time, southbound storms at Bandera & DelRio, Chiroptorium 0:30, Frio 0:34, Bracken 0:54, SanPedro 1:02, BalconesHeights 1:04, SALutheran SaladoCreek&MLKdrive 1:06, OldTunnel Stuart 1:10, Huber SchertzClemens 1:12, DavisBlowout SMCenterpoint SCUCISD TX28 Seguin 1:14, Wimberley Lockhart SanMarcos SMRB(Slayden) 1:16, McNeil Congress(~36% of the colony flew – some went 4 miles SW while most went 18 miles SSE ~7% of them went to altitude) 1:18, Crestwood&IH35 Loyiola Dittmar 1:20, D’Hanis 1:22, WellsBranch NLamar 1:24, NuecesRR 1:24, Floresvile OCFisher 1:26, SmythCrossing 1:28, Ney 1:32, SanAngelo FosterRd 1:40, GrapeCreek 1:46,

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Tuesday September 2, 2025

7:50 pm – 8:20 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 been flying for about 5 weeks now, so flights can be great nowadays, especially if a front moves through that stirs up insect activity.

Sunset: 7:52 pm
Dark: 8:22 pm (10-20 min). earlier if cloudy)
Sunrise: 7:08 am

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