when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong wind or rain in the area, If conditions look good (low or no wind), get there early!
The Congress bats are still involved with maternity care, so flights will be diminished, unless a front moves through that stirs up insect activity.
Sunset: 8:35 pm
Dark: 9:05 pm (10-20 min). earlier if cloudy)
Sunrise: 6:37 am
6 minutes after sunset ~36% of the colony rode the outflow boundary from Hill Country storms and flew 18 miles SE (only 4% of those went to altitude) surface Winds Calm – had been southerly 6-18 mph most of the afternoon (gusts to 28 mph around 5:30pm) briefly turning N with a Thunderstorm around 2:30 pm , Overcast, Temp 76°F, Dew Point 70°F steady, 17 Cooling Degree Days, Cloud Base 1368′, RH 82% rising, Heat Index 77°F, BP 30.02 steady, sea level 1015.8 mb steady, bats viewable until 9:47 pm under streetlights
Storms E of the I-35 corridor from Laredo to Waco dissipatting toward flight time, Bracken 1:16, Chiroptorium 1:38, McNeil 1:40, Frio 1:52, WellsBranch 2:00, DavisBlowout Huber Crestwood&IH35 2:02, Congress(~6% of the colony flew 6 miles E – only 1% of those went to altitude) 2:04, Temple 2:08, BeaverCreek EagelPass 2:14, JamesRiver OldTunnel 2:16, Rucker 2:18, SanAngelo 2:26, SmythCrossing FosterRd 2:30, Stuart US277&TX55 2:34, GrapeCreek 2:36,
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when conditions allow, i.e. when the atmosphere is stable, no pressure drops, no strong wind or rain in the area, If conditions look good (low or no wind), get there early!
The Congress bats are still involved with maternity care, so flights will be diminished, unless a front moves through that stirs up insect activity.
Sunset: 8:35 pm
Dark: 9:05 pm (10-20 min). earlier if cloudy)
Sunrise: 6:36 am
20 minutes after sunset (even though storm to the East had dissipated) only ~6% of the colony flew 6 miles E (only 1% of those went to altitude) on S Winds at 8 mph – had been S 7-18 mph most of the afternoon with gusts to 30 mph around 4:30pm, Partly Cloudy, Temp 79°F, Dew Point 72°F steady, 19 Cooling Degree Days, Cloud Base 1596′, RH 79% rising, Heat Index 82°F, BP 30.06 falling, sea level 1016.8 mb falling, bats viewable until 10:29 pm as they milled about the bridge under streetlights
Outflow boundaries sweep N and W from storms mostly E of the I-35 corridor, Bracken 0:58, Chiroptorium 1:18, Frio 1:34, DavisBlowout 1:34, McNeil 1:42, Huber 1:52, WellsBranch 1:58, Crestwood&IH35 2:00, NLamar Congress(~19% of the colony flew 6 miles E – 7% of those went to altitude) 2:04, Temple 2:06, OldTunnel 2:14, Ney 2:18, JamesRiver SMRB(Slayden) 2:20, SmythCrossing EaglePass 2:24, D’Hanis Stuart Rucker 2:30, SanAngelo FosterRd 2:34, OCFisher GrapeCreek 2:42, Fern 2:44,
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20 minutes after sunset (just before dark on a Mostly Cloudy evening) ~19% of the colony flew 6 miles E (7% of those went to altitude) into E Winds at 8 mph – had been southerly 3-10 mph all afternoon, Mostly Cloudy, Temp 81°F, Dew Point 74°F steady, 19 Cooling Degree Days, Cloud Base 1596′, RH 79% rising, Heat Index 86°F, BP 30.01 steady, sea level 1015.2 mb rising, bats viewable until 10:17 pm under streetlights
Storms from Ozona to Mason moving S across the Hill Country, more storms moving N between US281 & IH35 with another moving N skirting the E edge of Austin, Chiroptorium 1:02, DavisBlowout 1:06, McNeil 1:32, Frio 1:36, Huber 1:46, Congress(only ~11% of the colony flew 6 miles NE- 18% of those went to altitude) 2:00, Temple 2:02, OldTunnel Ney 2:18, SanAngelo FosterRd 2:24, OCFisher GrapeCreek 2:30, other possible flights suppressed or readings confounded by weather
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16 minutes after sunset (just before dark on a Mostly Cloudy evening) only ~11% of the colony flew 6 miles NE (18% of those went to altitude) on SW Winds at 5 mph – had been southerly 3-15 mph all afternoon turning NE at 18 mph with a Thunderstorm in Vicinity around 5:30 pm, Mostly Cloudy, Temp 77°F, Dew Point 72°F steady, 17 Cooling Degree Days, Cloud Base 1140, RH 85% rising, Heat Index 78°F, BP 29.93 rising, sea level 1012.4 mb steady, bats viewable until 9:43 pm under streetlights
Storms from the N streaming down US281 also through Junction and Ozona, McNeil 0:56, Bracken 1:22, Frio 1:32, JamesRiver NLamar Crestwood&IH35 1:46, Congress(only ~7% of the colony flew 6 miles NE – 1% to altitude) 1:52, Temple 2:14, EaglePass 2:16, GrapeCreek 2:18, SanAngelo FosterRd 2:20, Ney 2:22, other possible flights suppressed or readings confounded by weather
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