Sunday, July 20, 2025 · Congress Avenue Bridge · Austin, TX
16 minutes after sunset (between rain showers) only ~5% of the colony braved the unstable conditions and flew 6 miles NE (16% of those went to altitude) on S Winds at 13 mph – had been S 9-16 mph most of the afternoon with gusts to 22mph around 2:30pm, Mostly Cloudy, Temp 88°F, Dew Point 71°F falling, 21 Cooling Degree Days, Cloud Base 3852, RH 57% rising, Heat Index 94°F, BP 30.00 steady, sea level 1014.7 mb rising, bats viewable until 9:43 pm under streetlights
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