Wednesday, July 23, 2025 · Congress Avenue Bridge · Austin, TX
15 minutes after sunset (well before dark on a partly cloudy evening) ~16% of the colony flew – some went 6 miles NNE while most went 8 mile ESE (32% of the total went to altitude) on S Winds at 12 mph – had been S 9-15 mph all afternoon with gusts to 23 around 3:30pm, Partly Cloudy, Temp 90°F, Dew Point 68°F rising, 22 Cooling Degree Days, Cloud Base 5016, RH 48% rising, Heat Index 94°F, BP 29.95 rising, sea level 1012.7 mb rising, bats viewable until 10:15 pm under streetlights
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