Upper-level moisture continues streaming in from SW, developing over the Hill County at flight time triggered by N front, McNeil WellsBranch 0:30, SanPedro Seguin 0:38, CongressScouts ABIA SMCenterpoint AlamoQuarry TX26 0:46, Wimberley SCUCISD Randolph 410&IH35 BalconesHeights SALutheranHS Camden Southtown 0:50, SanMarcos Bracken 0:52, NewBraunfels Frio 0:54, D’Hanis 0:56, GrapeCreek FosterRd 0:58, Congress(only ~4% of the colony flew 8 miles SSE in unstable conditions) 1:04, Stuart 1:10,

7:25 pm – 7:55 pm
when conditions allow, i.e. when temps are >50°F, Dew Point >45°F (>38°F after long torpor), Heating Degree Days <9 (<15 after long torpor), atmosphere stable, no pressure drops, no strong wind, no rain in the area

Sunset: 7:40 pm
Dark: 8:10 pm (10-20 minutes earlier if cloudy)
Sunrise: 7:39 am 

Flight: 8:02 pm  
Scouts: 7:52 pm

23 minutes after sunset only ~12% of the colony flew 6 miles SSW (13% to altitude) on N Winds at 15 mph – had been northerly 18-24 mph all afternoon with gusts to 25 mph around 6pm, Overcast, Temp 66°F, Dew Point 59°F steady, 5 Cooling Degree Days, Cloud Base 1596′, RH 78% steady, Wind Chill N/A, BP 29.98 rising, bats viewable until 9:49 pm under streetlights

Upper level moisture steaming in from the SW over cold N surfaces winds, McNeil WellsBranch 0:42, SABurbankHS SALutheranHS 0:46, TX28 0:50, SMCenterpoint Bracken Randolph SanPedro BalconesHeights 0:54, Wimberley SanMarcos 0:58, CongressScouts NewBraunfels SCUCISD Seguin 1:00, Temple 1:02, GrapeCreekHS FosterRd 1:04, Frio Stuart 1:06, FtCavazos Congress(~12% of the colony flew 6 miles SSW (13% to altitued) on N Winds at 15 mph) 1:10,

7:25 pm – 7:55 pm
when conditions allow, i.e. when temps are >50°F, Dew Point >45°F (>38°F after long torpor), Heating Degree Days <9 (<15 after long torpor), atmosphere stable, no pressure drops, no strong wind, no rain in the area
chance for a good flight tonight

Sunset: 7:39 pm
Dark: 8:09 pm (10-20 minutes earlier if cloudy)
Sunrise: 7:40 am 

Flight: 8:06 pm  
Scouts: 7:56 pm

28 minutes after sunset only ~5% of the colony flew 6 miles W on SE Winds at 9 mph – had been S 14-18 mph all afternoon with gusts to 25 mph around 4pm, Visibility only 8 miles, Mostly Cloudy, Temp 74°F, Dew Point 68°F steady, 9 Cooling Degree Days, Cloud Base 1368′, RH 82% rising, Heat Index N/A, BP 29.7 rising, bats viewable until 9:27 pm under streetlights

SanPedro Camden SAUnionStockyards 0:40, McNeil 0:46, TX28 0:48, Randolph 0:52, WellsBranch 0:56, SanMarcos SMCenterpoint Bracken SCUCISD SchertzClemens GrapeCreekHS 0:58, Wimberley BalconesHeights Fern 1:02, CongressScouts 1:04, Seguin FosterRd 1:06, D’Hanis Frio Uvalde Stuart 1:08, BeeCavePark Lockhart 1:10, Chiroptorium Congress(only ~5% of the colony braved unstable conditions to fly ~4 miles W (19% to altitude) 1:14, Knippa NuecesRR SmythCrossing FM1572 Spofford EaglePass ElMoral(Coahuila) 1:16, DavisBlowout Huber 1:18, DelRio 1:22, OldTunnel Dittmar Comfort Centerpoint 1:24, BeaverCreeek 1:28, Ney 1:36,

7:25 pm – 7:55 pm
when conditions allow, i.e. when temps are >50°F, Dew Point >45°F (>38°F after long torpor), Heating Degree Days <9 (<15 after long torpor), atmosphere stable, no pressure drops, no strong wind, no rain in the area
chance for a good flight tonight

Sunset: 7:39 pm
Dark: 8:09 pm (10-20 minutes earlier if cloudy)
Sunrise: 7:41 am 

Flight: 8:04 pm  
Scouts: 7:56 pm

27 minutes after sunset, ~12% of the colony flew 12 miles NW on SE Winds at 13 mph – had been S 14-18 mph all afternoon with gusts to 25 mph around 7pm, Temp 77°F, Dew Point 67°F steady, Visibility 10 miles, A Few Clouds, 11 Cooling Degree Days, Cloud Base 2280′, RH 71% rising, Heat Index 79°F, BP 29.73 rising, bats viewable until 9:43 pm under streetlights

Bracketville (LaughlinAFB) radar (KDFX) offline, Seabreeze spawns a strong pop-up thunderstorm that hammers Bracken starting 0:30 as it moves NE just before flight time, Bracken 0:50, McNeil SanMarcos SMCenterpoint SanPedro 0:54, SCUCISD CiboloSteele SchertzClemens Randolph TX28 Camden 0:58, CongressScouts Wimberley Longhorn&WesternRR BalconeHeights SALutheranHS D’Hanis 1:04, Seguin 1:08, Centerpoint 1:10, Chrioptorium 1:12, Harwood SMRB(Slayden) GrapeCreek FosterRd 1:16, Congress(~12% of the colony flew 12 miles NW on SE Winds at 13mph) 1:12, OldTunnel DavisBlowout Frio 1:20, Huber 1:22, Ney bSabinal 1:24, Comfort Kerrville 1:20, Fern 1:24,