Thursday December 4, 2025
Chilly with upper-level moisture streaming up from the SW from DelRio to RoundRock, no Central Texas bat activity, Congress Flight Time Conditions: N Winds at 14 mph with gusts to 21mph – had been N 13-16 mph all afternoon, Visibility 9 miles, Overcast, 15 Heating Degree Days, Cloud Base 1596′, Temp 48°F, Dew Point 41°F falling, RH 77% rising, Wind Chill 43°F, BP 30.20 rising, Sea Level Pressure 1023.0 rising
Wednesday December 3, 2025
Upper-level moisture streaming up from the S along & E of the I-35 corridor, no discernable bat activity across the SBA of CenTex, Congress Flight Time Conditions: Winds Calm – had been southerly 5-6 mph with Light Drizzle Fog/Mist most of the afternoon, Visibility 1 mile, Light Drizzle Fog/Mist, 20 Heating Degree Days, Cloud Base 0′, Temp 55°F, Dew Point 55°F rising, RH 100%pegged, Wind Chill N/A°F, BP 29.97 rising, Sea Level Pressure 1015.1 rising
Tuesday December 2, 2025
No bat activity across the Significant Bat Area of Central Texas with the exception of Frio starting at 0:38 – max snap at 0:58 showed 1,150 flying 20 miles E (19% to altitude) , Congress Flight Time Conditions: Winds SE at 6 mph – had been easterly 5-7 mph all afternoon, Visibility10 miles, A Few Clouds, 20 Heating Degree Days, Cloud Base 5016′, Temp 50°F, Dew Point 28°F steady, RH 43% rising, Wind Chill 48°F, BP 30.04 falling, Sea Level Pressure 1017.5 falling
Monday December 1, 2025
‘Twas the night before Giving Tuesday and all through Central Texas not a creature was stirring not even T. brasiliensis, Congress Flight Time Conditions: Winds N at 14 mph – had been N 8-14 mph all afternoon, Visibility 2 miles, Light Rain Fog/Mist (and a few snowflakes at the Refuge!), 22 Heating Degree Days, Cloud Base 228’, Temp 42°F, Dew Point 41°F steady, RH 96% rising, Wind Chill 35°F, BP 30.08 rising, sea level pressure 1019.0 rising
Sunday November 30, 2025
Upper-level moisture sweeping across from the SSW, No CenTex activity with exception of Bracken 0:18 poking its head out to check the weather with some bats heading down Cibolo Creek possibly to shelter in buildings, Congress Flight Time Conditions: Winds N at 22 mph – with gusts to 30 mph – had been N 17-24 mph all afternoon with gusts to 30 mph around 12:30pm and 4:30pm, Visibility 10 miles, Overcast & Breezy, 12 Heating Degree Days, Cloud Base 5016′, Temp 49°F, Dew Point 27°F steady, RH 43% rising, BP 30.21 steady, sea level pressure 1023.3 rising
Saturday November 29, 2025
N front passes through SanAngelo at 23:30, GrapeCreek 23:44, SanAngelo 23:46, FosterRd 23:56, 410&IH35 0:02, CanyonLake NewBraunfels SchertzClemens Camden 0:06, McNeil WellsBranch NLamar Congress(the largest snapshot at 6:48 pm showed 66,738 (~4% of the summer colony size) in flight – some heading 6 miles WSE with most heading 12 miles SSW (~2% at altitude) on S Winds at 3 mph – had been southerly 6-15 mph all afternoon with gusts to 28 mph around 2:30 pm) another 123,997 Congress bats were in flight around 10:25 pm just before Winds turned to N at 11 pm with gusts to 39 mph at midnight) SanMarcos SCUCISD SanPedro 0:10, SMCenterpoint 0:14, BeeCavePark 0:24, OldTunnel 0:28, D’Hanis Knippa Fern 0:32, McNeil2 1:16,
Friday November 28, 2025
No CenTex activity despite warmer temperatures across the region: Congress Flight Time Conditions: SE Winds at 21 mph with gusts to 26 mph – had been S 16-20 mph & gusty all afternoon, Overcast & Breezy, Temp 66°F, Dew Point 52°F rising, 8 Heating Degree Days, Cloud Base 3192′, RH 61% rising, Wind Chill N/A°F, BP 30.15 rising, sea level pressure 1020.9mb rising
Thursday November 27, 2025
Very little CenTex activity on a chilly evening, Bracken 0:12, Congress(the largest snapshot at 7:16 pm showed 32,913 (~2% of the summer colony size) in flight heading 10 miles SE ~2% of them at altitude) ABIA SanMarcos SCUCISD SchertzClemens Randolph TX28 TX26 Kingsbury Luling 0:16, Decker 0:26, SMCenterpoint 0:46, McNeil 1:10, WellsBranch 1:52, Temple 1:58
Wednesday November 26, 2025
SanAngelo radar back online, BalconesHeights 23:32, SanPedro 23:38, 410&IH45 Camden 23:52, McNeil 23:56, Congress(the largest snapshot at 5:55 pm showed only 8,401 (~1% of the summer colony size) in flight heading 5 miles S – 0% at altitude) Dittmar Lockhart Bracken TX28 SALutheran 0:00, WellsBranch NLamar 0:02, Creedmor Buda SanMarcos SMCenterpoint SCUCISD SchertzClemens Randolph 0:06, Lackland 0:10, CanyonLake TX24 0:14, TX26 FM1104 Seguin Frio 0:24,
Tuesday November 25, 2025
SanAngelo radar still offline, McNeil 23:44, WellsBranch SanPedro BalconesHeights 23:48, Blanco NLamar Crestwood&IH35 23:50, Congress(the largest snapshot at 6:19 pm showed 389,895 (26% of the summer colony size) in flight – 85,300 heading 10 miles SW in migration with 304,600 heading 18 miles SE – 3% of the total at altitude) McKinneyFalls Creedmor Lockhart SALutheran 23:56, FtHood Loyola ABIA Buda SanMarcos SMCenterpoint 23:58, Dittmar BearCreekBridge Bulverde SCUSISD SchertzClemens 410&IH35 Camden 0:02, Temple Belton Salado 0:06, BeeCavePark Wimberly Segun Luling SMRB(Slayden) 0:10, OldTunnel D’Hanis Uvalde 0:16, Frio NuecesRR SmythCrossing 0:22, Vanderpool 0:30,