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.
Monday August 17, 2026
Chiroptorium 0:24, Frio 0:36, Bracken 0:40, OldTunnel 0:44, McNeil 0:52, SanPedro SALutheran Camden 1:00, DavisBlowout 1:06, NewBraunfels SCUCISD TX28 BalconesHeights StPhillipsSW 1:08, WellsBranch Congress(Starting 8 minutes before sunset (~35 minutes before dark on an evening with A Few Clouds), a snapshot at 8:51 pm showed 17% of the colony in flight – early birds heading 6 miles WNW with most heading 12 miles ENE – 28% of the total heading E at altitude) 1:12, Wimberley SMCenterpoint SchertzClemens 410&IH35 MLKPark 1:14, FtHood Huber BeeCavePark Loyola Crestwood&IH35 ABIA SanMarcos Seguin Lockhart Randolph SMRB(Sladen)1:20, Macedonia 1:22, Temple Dittmar 1:26, FosterRd 1:32, SanAngelo GrapeCreek 1:36, MustangRidge 1:38, EaglePass 1:54, Rucker 2:08,
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.