Thursday, June 12, 2025 · Congress Avenue Bridge · Austin, TX
Flight: 9:00 pm
Notes: ~28 minutes after sunset (at dark) only ~4% of the colony flew 6 miles NNE (and only ~5% of those went to altitude) on SE Winds at 7 mph – had been southerly 7-13 mph most of the afternoon, A Few Clouds, Temp 81°F, Dew Point 72°F rising, 15 Cooling Degree Days, Cloud Base 2052′, RH 74% rising, Heat Index 85°F, BP 29.90 rising, sea level 1011.5mb rising, bats viewable until 10:43 pm under streetlights
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