Friday, July 18, 2025 · Congress Avenue Bridge · Austin, TX
19 minutes after sunset (close to dark on a Mostly Cloudy evening) ~18% of the colony flew 8 miles ENE (8% of those went to altitude) on SE Winds at 8 mph – had been S 7-13 mph all afternoon with gusts to 20 mph around 3:30pm, Mostly Cloudy, Temp 85°F, Dew Point 69°F rising, 19 Cooling Degree Days, Cloud Base 3648, RH 59% rising, Heat Index 89°F, BP 29.94 rising, sea level 1012.6 mb rising, bats viewable until 10:15 pm under streetlights
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