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Bat Flight History

Flight Prediction Archive

Every evening's bat flight prediction at Congress Avenue Bridge, documented by Austin Bat Refuge staff.

All Posts

Tonight's Prediction →
Wednesday, August 20, 2025
Tuesday August 19, 2025
Flight: 8:04 pm ~4 mins before sunset (way before dark as storm passed to the W) ~39% of…
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Tuesday, August 19, 2025
Monday August 18, 2025
Isolated storm cell over Chiroptorium early, Bracken Frio 0:28, Luling […]
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Tuesday, August 19, 2025
Tuesday August 19, 2025
8:10 pm – 8:40 pm  when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong…
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Tuesday, August 19, 2025
Monday August 18, 2025
Flight: 8:16 pm ~7 mins after sunset (13 mins before dark on a Partly Cloudy evening) 1,032,160 (~69%…
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Monday, August 18, 2025
Sunday August 17, 2025
Rain & storms moving S early from SanAngelo to Eden, […]
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Monday, August 18, 2025
Sunday August 17, 2025
Flight: 8:20 pm ~10 mins after sunset (close to dark on a Mostly Cloudy evening) ~42% of the…
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Sunday, August 17, 2025
Saturday August 16, 2025
Isolated storms moving N along IH35 at flight time, Frio […]
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Sunday, August 17, 2025
Monday August 18, 2025
8:15 pm – 8:45 pm  when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong…
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Sunday, August 17, 2025
Saturday August 16, 2025
Flight: 8:22 pm ~11 mins after sunset (8 mins before dark on a Mostly Cloudy evening) ~41% of…
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Saturday, August 16, 2025
Friday August 15, 2025
Bracken 0:30, Frio 0:46, SanPedro 1:00, OldTunnel 1:04, Chiroptorium 1:10, […]
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