Outflow boundary from storms over EagleLake and Yoakum stir up activity, Bracken 0:34, Chiroptorium 0:36, Frio 0:46, McNeil 1:02, OldTunnel 1:04, OB hits NewBraunfels SanMarcos Lockhart Bastrop 1:12, SMCenterpoint 1:12, SanMarcos 1:16, SanPedro SALutheran Seguin 1:18, Ney 1:26, Rucker 1:34, Wimberley Lockhart 1:36, WellsBranch Congress(~46% of the colony flew – most went 12 miles SSW while some went 6 miles NE ~29% of the total climbed E to altitude) Dittmar Buda SMRB(Slayden) 1:36, Temple Thorndale US277&TX55 1:48, FosterRd GrapeCreek 1:50, Huber 1:52, SanAngelo 1:58,
-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
Friday August 8, 2025
Frio 0:50, Bracken 0:52, Chiroptorium 0:58, OldTunnel SanPedro SALutheran 1:20, McNeil D’Hanis 1:22, SCUCISD TX28 410&IH35 Camden 1:26, Lockhart SchertzClemens Seguin 1:28, CongressScouts SMCenterpoint 1:30, Floresville 1:32, WaterlooGreenway(8:25pm) Wimberley 1:36, Congress(~25% of the colony flew – most went 10 miles SSW while some went 6 miles N ~31% of the total climbed E to altitude) Dittmar Buda Kyle SMBR(Slayden) 1:40, WellsBranch NLamar Crestwood&IH35 Loyola Ney Rucker 1:44, Huber Temple US277&TX55 1:50, SanAngelo FosterRd 1:56, GrapeCreek 2:02, Fern 2:04, Stuart 2:06, EaglePass 2:12,
-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
Thursday August 7, 2025
Frio 0:48, Chiroptorium Bracken 1:04, OldTunnel McNeil SALutheran 1:22, SCUCISD SchertzClemens 410&IH35 SanPedro 1:28, Chiroptorium2 SanMarcos SMCenterpoint NewBraunfels TX28 Randolph Camden Seguin 1:36, Crestwood&IH35 1:40, Congress(~24% of the colony flew – most went 10 miles SSW while some went 6 miles E ~29% of the total climbed E to altitude) 1:44, Huber WellsBranch NLamar Lockhart SMRB(Slayden) 1:46, Wimberley Ney 1:50, OldTunnel2 Rucker SanAngelo FosterRd 1:58, GrapeCreek 2:04, Fern 2:12,
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
Thursday August 7, 2025
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
-21 minutes after sunset (about at dark with the hazy sky) only ~16% of the colony flew 14 miles SSW (~24% of those climbed to altitude) on SE Winds at 13 mph – had been easterly 5-10 mph most of the afternoon gusting to 21 mph around 3:30pm , A Few Clouds, Temp 91°F, Dew Point 70°F rising, 21 Cooling Degree Days, Cloud Base 4788, RH 50% rising, Heat Index 97°F, BP 30.08 rising, sea level pressure 1017.3 mb rising, bats viewable until 10:33 pm under streetlights
Tuesday August 5, 2025
Outflow boundary approaching the I-35 corridor from Gonzales to Smithville at flight time, Bracken Frio 1:04, Chiroptorium 1:22, SCUCISD 1:28, Randolph TX28 410&IH35 SanPedro SALutheran 1:30, OldTunnel 1:34, McNeil SMCenterpoint SchertzClemens 1:38, D’Hanis 1:44, CongressScouts SanMarcos 1:50, WellsBranch Crestwood&IH35 Congress(~37% of the colony flew 14 miles SSW ~27% of those climbed to altitude) 1:52, Ney 1:54,DavisBlowout Loyola Dittmar SMRB(Slayden) 1:58, JamesRiver Rucker 2:04, SmythCrossing US277&TX55 2:06, Huber EaglePass Fern 2:12, SanAngelo 2:16, GrapeCreek 2:18, FosterRd 2:24,