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Saturday December 20, 2025

Very little activity despite warmer temps as bats show their disdain for the S winds, SanMarcos 0:06, McNeil 0:10, SCUCISD & SchertzClemens appear to move back to Bracken 0:12, Bracken 0:12, D’Hanis 0:32, Congress Flight Time Conditions: Winds S at 9 mph – had been S 8-24 all afternoon with gusts to 37 mph around 12:30pm and to 21 mph around 4:30pm, Visibility 9 miles, Fair, 5 Heating Degree Days, Cloud Base 1368′, Temp 68°F, Dew Point 62°F falling, RH 81% rising, Wind Chill N/A°F, BP 29.87 steady, Sea Level Pressure 1011.3 rising

 

Friday December 19, 2025

No CenTex activity with exception of Bracken 0:16, & Frio 0:46, Congress Flight Time Conditions: Winds S at 6 mph – had been S 12-13 mph all afternoon with gusts to 20 mph around 2:30pm, Visibility 10 miles, A Few Clouds, 12 Heating Degree Days, Cloud Base 6840′, Temp 57°F, Dew Point 27°F rising, RH 32% rising, Wind Chill N/A°F, BP 30.05 steady, Sea Level Pressure 1017.7 rising

 

Thursday December 18, 2025

BalconesHeights 23:38, SanPedro 23:44, McNeil 23:48, 410&IH35 Camden 23:50, WellsBranch NLamar Crestwood&IH35 ABIA EaglePass 23:56, Temple(in migration) Congress(a snapshot at 6:08pm showed 148,791 (10% of the summer colony size) in flight (62,345 foraging 18 miles SSE (133 at altitude) with  86,446 in migration heading 30 miles SSW -375 of those at altitude) Buda MustangRidge Lockhart SCUCISD SALutheran 23:58, Salado Milano Dittmar Knippa 0:02, Wimberley SanMarcos SMCenterpoint Bulverde SchertzClemens Randolph Seguin Luling Gonzales 0:04, NuecesRR 0:10, Bracken 0:12 a day behind the weather again, Floresville 0:12, Vanderpool Dabney 0:16, OldTunnel 0:20, D’Hanis Frio 0:24,

 

Wednesday December 17, 2025

No bat acitivity once again, despite warmer conditions, as a disturbance around Karnes City spins moisture up the I-35 corridor, Congress Flight Time Conditions: Winds S at 3 mph – had been Calm with Light Rain Fog/Mist most of the afternoon, Visibility 10 miles, Overcast, 3 Heating Degree Days, Cloud Base 228′, Temp 64°F, Dew Point 63°F steady, RH 96% rising, Wind Chill N/A°F, BP 29.9 steady, Sea Level Pressure 1012.1 steady

 

Tuesday December 16, 2025

No bat activity across the Significant Bat Area of Central Texas as rain from the SW streamed across the Hill Country, Congress Flight Time Conditions: Winds Calm – had been southerly 6-10 mph & Overcast all afternoon, Visibility 7 miles, Light Rain, 10 Heating Degree Days, Cloud Base 912′, Temp 57°F, Dew Point 53°F rising, RH 87% rising, Wind Chill N/A°F, BP 30.00 falling, Sea Level Pressure 1016.3 falling

 

Monday December 15, 2025

No Central Texas activity on another frigid night with the exception of Bracken 0:12 – the largest snapshot from Bracken at 1:12 showed 10,307 in flight headed 6 miles ENE with 912 at altitude, Congress Flight Time Conditions: Winds Variable at 3 mph – had been light & variable all afternoon, Visibility 10 miles, Mostly Cloudy, 23 Heating Degree Days, Cloud Base 8208′, Temp 53°F, Dew Point 17°F falling, RH 24% rising, Wind Chill N/A°F, BP 30.28 falling, Sea Level Pressure 1025.7 falling

 

Sunday December 14, 2025

No Central Texas activity on a frigid night with the exception of Bracken 0:08 which is often a day behind the weather, the largest snapshot from Bracken at 0:42 showed 7,658 in flight headed 3 miles S with very few at altitude, Congress Flight Time Conditions: Winds N at 18 mph – had been N 16-22 mph all afternoon with gusts to 31 mph around 12:30pm, Visibility 10 miles, Overcast, 15 Heating Degree Days, Cloud Base 2836′, Temp 58°F, Dew Point 29°F rising, RH 62% rising, Wind Chill 33°F, BP 30.50 steady, Sea Level Pressure 1033.3 rising,

 

Saturday December 13, 2025

Slightly more activity than the previous night; but we’d expect more on such a warm evening, McNeil 0:02, Dabny SanAngelo 0:06, Temple Salado SanMarcos SMCenterpoint NewBraunfels Bracken SCUCISD SchertzClemens 410&IH35 FtSam Seguin GrapeCreek 0:08, Decker ABIA 0:12, Crestwood&IH35 CanyonLake 0:16, Loyola Congress(the largest snapshot at 7:07 pm showed 21,056 (~1% of the summer colony size) in flight – heading 6 miles ESE ~4% of them at altitude) 0:22, OldTunnel 0:30, Vanderpool 0:34, Comfort Kerrville Centerpoint 0:36, D’Hanis Sabinal Knippa Frio Hunt 0:42,

 

Friday December 12, 2025

Surprisingly little activity on a Warm Calm night, KleinRdElem CiboloSteele 23:42, SanAngelo 23:58, McNeil SchertzClemens Camden 0:02, GrapeCreek 0:04, SanMarcos SMCenterpoint NewBraunfels SCUCISD Randolph Bracken 410&IH35 Seguin 0:10, Temple 0:16, OldTunnel 0:30, Congress(the largest snapshot at 1:51 showed 9,815 in flight heading 8 miles ESE – 2% of those to altitude) 0:32, Calaveras 0:58,

 

Thursday December 11, 2025

Very little Central Texas activity; small flights from McNeil Bracken 0:10, Camden 0:16, Congress 0:24, Frio 0:28, A snapshot of Congress at 0:36 showed a few hundred in flight heading 3 miles ENE around 15 minutes after dark: Congress Flight Time Conditions: S Winds at 6 mph – had been southerly 8-12 mph all afternoon with gusts to 20 mph around 1:30pm, Visibility 10 miles, A Few Clouds, 13 Heating Degree Days, Cloud Base 6384′, Temp 58°F, Dew Point 30°F rising, RH 35% rising, Wind Chill N/A°F, BP 29.98 steady, Sea Level Pressure 1015.3 rising,

 

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