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 have weaned their pups, so flights will start getting great soon, especially if a front moves through that stirs up insect activity.
Sunset: 8:26 pm
Dark: 8:56 pm (10-20 min). earlier if cloudy)
Sunrise: 6:48 am
-13 minutes after sunset (17 mins before dark ) ~28% of the colony flew 14 miles SE (~43% of the those climbed to altitude) into S Winds at 5 mph – had been southerly 5-10 mph most of the afternoon, Fair, Temp 85°F, Dew Point 56°F rising, 20 Cooling Degree Days, Cloud Base 6612, RH 37% rising, Heat Index 84°F, BP 30.05 rising, sea level pressure 1016.4 mb rising, bats viewable until 10:11 pm under streetlights
Chiroptorium 0:34, Bracken 1:04, Frio 1:16, SALutheran 1:24, SCUCISD 1:26, McNeil SchertzClemens 410&IH35 SanPedro 1:30, Camden 1:36, SMCenterpoint 1:42, Wimberley 1:48, CongressScouts 1:52, Crestwood&IH35 Congress(only ~11% of the colony flew 8 miles NE – 8% of the those went to altitude) ABIA Dittmar Lockhart 1:56, Punkin D’Hanis 1:58, OldTunnel SMRB(Slayden) 2:00, Ney 2:02, Rucker US277&TX55 2:06,
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-17 minutes after sunset (13 mins before dark ) only ~11% of the colony flew 8 miles NE (only 8% of the those went to altitude) on S Winds at 7 mph – had been S 7-10 mph almost all afternoon, A Few Clouds, Temp 88°F, Dew Point 66°F falling, 21 Cooling Degree Days, Cloud Base 5016, RH 48% rising, Heat Index 90°F, BP 30.09 steady, sea level pressure 1017.8 mb rising, bats viewable until 10:39 pm under streetlights
Outflow boundaries heading W through SanAngelo and DelRio, another heading toward Round Rock, Chiroptorium 0:46, Bracken 0:50, McNeil 1:04, SanPedro 1:26, New Braunfels Camden 1:32, SanMarcos 1:38, SMCenterpoint 1:40, Seguin 1:44, Crestwood&IH35 Congress(only ~10% of the colony flew 8 miles NE – only 8% of the those went to altitude) 1:46, WellsBranch NLamar 1:52, OldTunnel 1:58, Ney 2:02, D’Hanis Rucker 2:04, Wimberley Lockhart SMRB(Slayden) 2:08, EaglePass 2:10, GrapeCreek 2:20, SanAngelo FosterRd 2:22, Fern 2:32, Huber 2:34,
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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 have weaned their pups, so flights will start getting great soon, especially if a front moves through that stirs up insect activity.
Sunset: 8:26 pm
Dark: 8:56 pm (10-20 min). earlier if cloudy)
Sunrise: 6:48 am
-8 minutes after sunset (wells before dark ) only ~10% of the colony flew 8 miles NE (only 8% of the those went to altitude) on S Winds at 5 mph – had been southerly 7-16 mph all afternoon with gusts to 26 mph around 3:30 pm, Mostly Cloudy, Temp 80°F, Dew Point 70°F steady, 22 Cooling Degree Days, Cloud Base 2280, RH 71% rising, Heat Index 83°F, BP 30.11 steady, sea level pressure 1018.4 mb falling, bats viewable until 10:23 pm under streetlights
Storms in a band from ElDorado to EaglePass heading W at flight time, Chiroptorium 0:38, Bracken 0:56, Frio 1:24, McNeil 1:28, 410&IH35 SanPedro 1:30, Seguin 1:32, SchertzClemens SALutheran Camden 1:36, SanMarcos SMCenterpoint 1:38, Wimberley D’Hanis 1:44, CongressScouts 1:50, Temple Congress(~32% of the colony flew 8 miles NE – only 5% of the those went to altitude) 1:56, Lockhart SMRB(Slayden) 1:58, ABIA Dittmar 2:00, Rucker 2:02, OldTunnel Ney 2:04, Huber SanAngelo GrapeCreek 2:22, FosterRd 2:24,
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-15 minutes after sunset (10 mins before dark ) ~32% of the colony flew 8 miles NE (only 5% of the those went to altitude) on S Winds at 10 mph – had been southerly 10-21 mph all afternoon with gusts to 28 mph around 5:30 pm, Partly Cloudy, Temp 82°F, Dew Point 71°F steady, 20 Cooling Degree Days, Cloud Base 2508, RH 69% rising, Heat Index 86°F, BP 30.00 rising, sea level 1014.9 mb rising, bats viewable until 10:19 pm under streetlights
Big storms over Houston, dissipating as they move E toward the I-35 corridor, rain at Marfa & Alpine just missing Hubble’s release at McDonald Observatory – YAY! (See our Instagram story), strong stomrs between the Devil’s & Pecos Rivers, a string of rainshowers moving SSW along US281, Bracken 0:40, Chiroptorium 1:00 between rainshowers, McNeil 1:04, DavisBlowout 1:08, JamesRiver 1:14, Frio 1:20, Bracken2 1:30, SanMarcos SMCenterpoint 1:32, WellsBranch 1:40, Crestwood&IH35 1:40, CongressScouts 1:44, NLamar Congress(~426.7k (~28% of the colony) flew 12 miles SE – 27% of the those went to altitude) 1:48, Temple ABIA Dittmar 1:54, OldTunnel 1:56, JamesRiver2 Rucker 2:00, Huber 2:02, US277&TX55 2:12, Ney 2:22, Stuart Fern 2:26, various flights delayed, suppressed or readings confounded by weather
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