~36 minutes after sunset (after dark) ~52% of the colony flew 8 miles ESE (13% to altitude) Winds Calm – had been Light & Variable all afternoon, Mostly Cloudy, Temp 76°F, Dew Point 74°F steady, Visibility 10 miles, 8 Cooling Degree Days, Cloud Base 456′, RH 94% rising, Heat Index 76°F, BP 29.76 rising, some bats viewable until 9:45 pm under streetlights
Scattered storms heading N to the E of the I-35 corridor, Bracken 1:30, Frio 1:32, Huber Camden Stuart 1:36, OldTunnel 1:38, Webb 1:40, Chiroptorium DavisBlowout SanMarcos SchertzClemens Randolph FosterRd 1:42, McNeil Knippa Bracketville Fern 1:44, CongressScouts SanAngelo 1:46, Nueces Nueces90 1:48, Congress(52% of the colony flew 8 miles ESE) GrapeCreek 1:50, Pinto Rucker 1:52, DelRio 1:58,
Flight Time Conditions: Winds SE at 21 mph w/ gusts to 31 mph – had been southerly 16-23 mph all afternoon with gusts to 35 mph at 6pm, Temp 78°F, Dew Point 72°F steady, Visibility 10 miles, Overcast & Breezy, 15 Heating Degree Days, Cloud Base 1368′, RH 82% rising, Heat Index 80°F, BP 29.74 rising
Strong gusty S winds suppressed all flights with exception of protected cave or building roosts, Bracken 1:30, Frio 1:40, SchertzClemens 1:44, SanAngelo FosterRd 1:48, Stuart GrapeCreek 1:50, BalconesHeights 1:56, Rucker 1:58, Fern 2:02, nothing from Congress, Austin Dragon Boat Races fought strong winds all day, too windy for insects to fly, no insects flying = no bats flying
Flight Time Conditions: Winds SE at 13 mph – had been S 14-21 mph all afternoon with gusts to 23 mph around 8 pm, Temp 78°F, Dew Point 68°F steady, Visibility 10 miles, Overcast, 14 Cooling Degree Days, Cloud Base 2280′, RH 71% steady, Heat Index 80°F, BP 29.67 rising
Storms in NE clear around noon but strong S winds continue, BrackenScouts 1:32, Bracken 1:36, SchertzClemens 1:40, Frio 1:44, Stuart SanAngelo 1:48, Huber FosterRd 1:50, OldTunnel TX28 1:54, Fern GrapeCreek 1:56, DavisBlowout 2:02, D’Hanis 2:12, nothing from Congress or McNeil