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Wednesday June 18, 2025

Rucker 0:38, DavisBlowout 0:40, Bracken 0:46, Chiroptorium 1:00, Frio 1:20, McNeil 1:34, Stuart 1:48, Huber 1:54, SMCenterpoint NewBraunfels SchertzClemens 410&IH35 Seguin SMRB(Slayden) 1:56, OldTunnel WellsBranch NLamar Crestwood&IH35 Congress(19% of the colony flew 8 miles NE – 11% of those went to altitude) 2:02, D’Hanis Vanderpool 2:08, Temple Loyola ABIA Dittmar Onion Lockhart SMRB(Slayden) FosterRd 2:10, SanAngelo OCFisher 2:12, EaglePass 2:14, GrapeCreek 2:16, Fern 2:22,

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Wednesday June 18, 2025

Flight: 8:54 pm 

Notes: ~20 minutes after sunset (~10 mins before dark) ~19% of the colony flew 8 miles NE (~11% of those went to altitude) on S Winds at 8 mph – had been S 16-24 mph all afternoon with gusts to 29 mph around 6:30pm,  Fair, Temp 84°F, Dew Point 70°F steady, 21 Cooling Degree Days, Cloud Base 3192′, RH 63% rising, Heat Index 88°F, BP 29.94 rising, sea level 1012.5mb rising, bats viewable until 10:05 pm under streetlights

Tuesday June 17, 2025

DavisBlowout Bracken 0:54, Chiroptorium 1:00, Rucker 1:02, Frio 1:24,Stuart 1:46, DavisBlowout2 McNeil Seguin 1:50, SMCenterpoint SCUCISD SchertzClemens TX28 4510&IH35 SanPedro SALutheran 1:56, Huber 1:58, WellsBranch Crestwood&IH35 Congress(only ~8% of the colony flew 8 miles NE -only ~5% of the those flew to altitude) 2:04, D’Hanis FM1572 2:06, Ney 2:10, EaglePass Fern SanAngelo 2:12, OCFisher 2:16, Harwood SMRB(Slayden) FosterRd GrapeCreek 2:18, SmythCrossing 2:26,

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Friday June 20, 2025

8:40 pm – 9:10 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 bats are giving birth these days (average date of birth is June 10th) so flights will be diminished, unless a north front moves through that stirs up insect activity.

Sunset: 8:35 pm

Dark: 9:05 pm (10-20 min). earlier if cloudy)

Sunrise: 6:29 am

Tuesday June 17, 2025

Flight: 8:56 pm 

Notes: ~22 minutes after sunset, only ~8% of the colony flew 8 miles NE (only ~5% of the those flew to altitude) on S Winds at 12 mph – had been S 14-21 all afternoon with gusts to 25 mph around 7:30pm, Visibility 10 miles, Fair, Temp 85°F, Dew Point 70°F falling, 17 Cooling Degree Days, Cloud Base 3420′, RH 61% rising, Heat Index 89°F, BP 29.83 steady, sea level 1009.1 mb falling, bats viewable until 9:59 pm under streetlights

Monday June 16, 2025

Bracken 0:50, Rucker 1:06, Frio 1:14, Chiroptorium 1:16, DavisBlowout 1:24, Bracken2 1:42, Stuart 1:48, Huber McNeil 1:52, Fern 1:56, WellsBranch CongressScouts 2:00, SanPedro SALutheran 2:02, Crestwood&IH35 Congress(~20% of the colony flew 12 miles E – 9% of those went to altitude) 2:04, NLamar Loyola ABIA 2:06, EaglePass FosterRd SanAngelo 2:14, Temple OCFisher 2:20, Lockhart SMRB(Slayden) D’Hanis 2:22, GrapeCreek 2:26, Comfort 2:36,

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Monday June 16, 2025

Flight: 8:54 pm 

Notes: ~22 mins after sunset, ~20% of the colony flew 12 miles E on S Winds at 12 mph – had been southerly 10-13 mph all afternoon with gusts to 20 mph around 6:30pm, Visibility 10 miles, Fair, 17 Heating Degree Days, Cloud Base 3192′, Temp 85°F, Dew Point 71°F steady, RH 63% rising, Heat Index 90°F, BP 29.91 rising, sea level 1011.7mb rising, bats viewable until 10:17 pm under streetlights

Sunday June 15, 2025

A strong line of storms continues S over US90E, Frio(40 minutes after passage of a frontal boundary) 0:44, Chirotoptorium Bracken 0:48, DavisBlowout BeaverCreek 0:58, Huber 1:36, Stuart Rucker 1:38, McNeil 1:40, Congress(~15% of the colony flew 12 miles E -0% of those went to altitude) Dittmar Fern 1:48, McNei2 WellsBranch 1:52, OldTunnel Lockhart SALutheran 1:54, Ney 1:58, Temple 2:00, EaglePass 2:20,

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Tuesday June 17, 2025

8:40 pm – 9:10 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 bats are giving birth these days (average date of birth is June 10th) so flights will be diminished, unless a north front moves through that stirs up insect activity.

Sunset: 8:34 pm

Dark: 9:04 pm (10-20 min. earlier if cloudy)

Sunrise: 6:29 am

Sunday June 15, 2025

Flight: 8:40 pm 

Notes:~6 minutes after sunset ~15% of the colony flew 12 miles E (0% of those went to altitude) on W Winds at 3 mph – had been southerly 14-18 early turning N with gusts to 37 mph when Thunderstorm hit around 3:30pm with Heavy Rain Fog/Mist, Visibility 10 miles, Overcast, Temp 73°F, Dew Point 71°F falling, 19 Cooling Degree Days, Cloud Base 456′, RH 94% steady, Heat Index N/A, BP 29.97 rising, sea level 1013.7mb rising, bats viewable until 9:53 pm under streetlights

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