Friday, September 5, 2025 · Congress Avenue Bridge · Austin, TX
49 mins after sunset (way after dark) only ~22% of the colony flew – some went 12 miles WNW while most went 10 miles NE on S Winds at 5 mph – had been southerly 5-8 mph most of the afternoon, Mostly Cloudy, Temp 90°F, Dew Point 55°F rising, 18 Cooling Degree Days, Cloud Base 7980′, RH 31% rising, Heat Index 88°F, BP 29.77 steady, sea level pressure 1007.0 mb rising, bats viewable until 10:09 pm under streetlights
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