Radar Archive
Since 2011, we have compiled data nightly, covering the Significant Bat Area (SBA) of Central Texas (Roughly from San Angelo to Round Rock to New Braunfels to Del Rio). Radar observations play an important role in the emerging, transdisciplinary field of Aeroecology and NOAA’s National Mosaic of 150 NEXRAD radar installations provides a treasure trove of data for population monitoring and studies of phenology, migration, and aerial behavior of “bioscatter” such as birds, insects, and bats.
Help us keep a finger on the pulse of our Mexican Free-Tailed Bats!
Amanda L. Stronza, ABR Volunteer
Last Night’s Flight Times
in the Significant Bat Area of Central Texas
Quantifications are calculated from a snapshot of maximum density, unless noted as emergence totals.
subtract 5:08 hours for CDT of flights – 0:08 is about 7:00 pm CDT
Check out our Congress Avenue Bridge page for the latest Congress flight times and viewing tips.
Sunday August 16, 2026
Chirotptoirum 0:34, McNeil 0:36, OldTunnel 0:40,Frio 0:44, Bracken 0:46, SanPedro SALutheran Seguin 1:00, WaterlooGreenway SchertzClemens TX28 1:08, DavisBlowout Huber 1:10, Congress(Starting 7 minutes before sunset (about 37 minutes before dark on a Fair evening, a snapshot at 8:49 pm showed 221,122 in flight heading 14 miles ESE – 29% of them to the SE at altitude) 1:14, Wimberley SanMarcos SMCenterpoint 410&IH35 BalconesHeights Camden 1:14, BeeCavePark WellsBranch Crestwood&IH35 Loyola Dittmar Lockhart 1:18, Temple SMRB(Slaydem) 1:24, FosterRd SanAngelo GrapeCreek 1:38, NuecesRR 1:40,
This year’s flights
We hope to have flights prior to June 2025 uploaded here soon.
Questions? contact us. We’d love to chat!
Favorite Flights
Above video from the evening of July 3, 2013 showing a seabreeze front from the SE and bats emerging from Central Texas roosts to feed on insects pushed along by the front.