Tuesday, September 9, 2025 · Congress Avenue Bridge · Austin, TX
46 mins after sunset (way after dark) only ~24% of the colony flew 8 miles SSE on E Winds at 7 mph – had been northeasterly 6-12 mph all afternoon with gusts to 20 mph around 5:30pm, Fair, Temp 83°F, Dew Point 55°F falling, 12 Cooling Degree Days, Cloud Base 6384′, RH 38% rising, Heat Index 82°F, BP 30.00 rising, sea level pressure 1014.9 mb rising, bats viewable until 10:37 pm under streetlights
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