Very minimal activity in the SBA as cold weather tightens its grip on Central Texas, Bracken 0:14, Congress(the largest snapshot at 6:20 pm showed 207 (~0% of the summer colony size) milling about the bridge for a few minutes) 0:14, McNeilScouts 0:26, SanMarcos SCUCISD 0:28, McNeil 0:40, Congress Flight Time Conditions: Temp 56°F, Dew Point 19°F, Wind E at 3mph – had been light & Variable becoming northerly 5-8 mph in mid-afternoon

BalconesHeights 23:34, SanPedro 23:42, McNeil 0:00, Camden EaglePass 0:02, Temple WellsBranch NLamar Congress(the largest snapshot at 6:28 pm showed 101,719 (7% of the summer colony size) in flight  – some heading 6 miles SE to forage locally with most heading 40 miles SSW in migration – 0% of the total at altitude) ABIA Lockhart SanMarcos Bracken SchertzClemens Randolph TX28 4510&IH35 SALutheran Seguin 0:08, SMCenterpoint 0:12, Salado 0:14, SCUCISD TX26 Floresville Knippa Uvlade SmythCrossing(migration) Dabney FM1572 0:16, SanAngelo 0:20, Milano Luling SMRB(Slayden) 0:22, NuecesRR Spofford Bracketville 0:24, Thorndale 0:28, FosterRd 0:30, GrapeCreek 0:34,

Huntsvlle 23:44, Killeen SanPedro BalconesHeights 23:50, McNeil WellsBranch McKinneyFalls Kyle SanMarcos SCUCISD CiboloSteele 23:58, Seguin 0:02, Temple Belton NLamar Crestwood&IH35 Congress(the largest snapshot at 6:21 pm showed a whopping 642,944 (~43% of the summer colony size) in flight – some heading 10 miles W with most heading 18 miles ESE ~10% of the total at altitude) ABIA Dittmar Buda Lockhart SMCenterpoint MysticShores Bracken Randolph Camden 0:04, SanAngelo FosterRd (as front passes through) EaglePass 0:08, OldTunnel Blancon Salado Milano Wimberley Timberwood SchertzClemens IvySwitch SMRB(Slayden) GrapeCreek 0:12, SmythCrossing Cuero 0:14, Floresville D’Hanis 0:18, Frio Uvalde NuecesRR FM1572 DelRio 0:22, Dabney Pinto 0:24, Huber 0:26, Leakey Fern 0:30,

Conditions trigger a big flight from Congress as a front from NW sweeps through Austin around 22:40 (4:30pm) on a warm afternoon, WellsBranch 23:32, McNeil SanPedro BalconesHeights 23:44, NewBraunfels Seguin 23:48, OldTunnel TX28 410&IH35 SALutheran Camden 23:50, Killeen Temple SMCenterpoint 23:52, CiboloSteele 23:54, SanMarcos Randolph 23:56, NLamar Crestwood&IH35 Loyola Congress(the largest snapshot at 6:28 pm showed a whopping 837,348 (~56% of the summer colony size) in flight – some heading 10 miles SSW with most heading 24 miles SSE – 11% of them at altitude) ABIA McKinneyFalls Onion MustangRidge Creedmor Lockhart 23:58, SanAngelo 0:02, BeeCavePark Blanco D’Hanis 0:04, EaglePass FosterRd 0:06, Chiroptorium BachelorMtn Wimberley Bracken 0:12, Huber Sabinal Knippa Uvalde NuecesRR SmythCrossing FM1572 GrapeCreek 0:14, Vanderpool Frio 0:20, MailTrailCreek 0:30, Fern 0:34,

BlancoRiver&IH35 SanPedro BalconesHeights 23:44, McNeil WellsBranch 23:48, NewBraunfels 23:50, Randolph Camden Seguin 23:52, FtHood NLamar 23:54, Lockhart SanMarcos SMCenterpoint SCUCISD SchertzClemens TX28 23:58, Temple ABIA 0:00, Congress(the largest snapshot at 6:14 pm showed 41,090 (~3% of the summer colony size)  in flight – some heading 8 miles NNW with most heading 14 miles ENE – 8% of the total at altitude) Buda Bracken 410&I35 SALutheran 0:06, Salado Milano Thorndale Macedonia 0:08, SanAngelo 0:10, OldTunnel Wimberley CanyonLake SMRB(Slayden) 0:12, Centerpoint SmythCrossing FM1572 FosterRd 0:18, GrapeCreek 0:24, Fern 0:26, D’Hanis EaglePass 0:26, Frio 0:32,

SanPedro BalconesHeights 23:46, SanAngelo 23:52, WellsBranch 23:54, McNeil 23:56, SanMarcos SMCenterpoint NewBraunfels SCUCISD Bracken TX28 Randolph Camden FosterRd 0:00, Temple NLamar Crestwood&IH35 0:02, Buda SchertzClemens SALutheran Seguin GrapeCreek 0:06, Salado Macedonia Congress(the largest snapshot at 6:22 pm showed 182,619 (~12% of the summer colony size) in flight, some heading 4 miles NW with most heading 20 miles ESE – 18% at altitude) ABIA 0:08, OldTunnel Blanco Wimberley SMRB(Slayden) 0:14, Milano Thorndale 0:16, Cuero 0:20, Huber 0:24, Centerpoint D’Hanis 0:26, Vanderpool SmythCrossing FM1572 EaglePass 0:28,

SanMarcos SMCenterpoint NewBraunfels CiboloSteele SanPedro BalconesHeights 0:02, Temple McNeil WellsBranch NLamar 0:04, Macedonia CedarPark Loyola CongressScouts Wimberley SCUCISD SchertzClemens Randolph TX28 410&IH35 Camden SanAngelo 0:10, Crestwood&H35 Congress(the largest snapshot at 6:32 pm showed 56,845 (4% of the summer colony size) in flight – some heading 6 miles NW with most heading 12 miles E – 1% at altitude) CanyonLake Bracken SALutheran 0:16, OldTunnel Seguin Luling FosterRd GrapeCreek 0:22, Knippa Uvalde EaglePass 0:26, Comfort Centerpont 0:30, D’Hanis SmythCrossing 0:34, Frio 0:40,

LongCreekHS 23:56, CiboloSteele 23:58, WellsBranch 0:00, Temple McNeil NLamar 0:06, Congress(the largest snapshot at 6:28 pm showed 42,939 (~3% of the summer colony size) in flight – some heading 6 miles NW with most heading 8 miles E – 1% of the total at altitude) SanMarcos SMCenterpoint SCUCISD Bracken SchertzClemens 410&IH35 SanPedro BalconesHeights Camden SanAngelo 0:12, Salado Macedonia CedarPark 0:14, Wimberley CanyonLake TX28 FosterRd 0:20, Milano 0:22, Boerne Comfort SMRB(Slayden) FM541 GrapeCreek 0:26, D’Hanis Sabinal Knippa Uvalde SmythCrossing FM1572 Pinto EaglePass 0:32, OldTunnel Chiroptorium Centerpoint 0:34, Victoria 0:36, Frio 0:38,

WellsBranch SCUCISD 23:58, OldTunnel 0:02, Temple McNeil Nlamar Crestwood&IH35 0:06, Blanco Congress(a snapshot at 6:29 pm showed 297,826 (20% of the summer colony size) in flight  – some heading 8 miles NW with most heading 12 miles ESE – only 2% of the total at altitude) ABIA Dittmar Onion Wimberley SanMarcos SMCenterpoint Bracken Camden 0:12, FtHood Salado Macedonia Loyola 0:14, Lockhart CanyonLake NewBraunfels SchertzClemens Randolph 410&IH35 SanPedro SALutheran TX26 0:16, SanAngelo 0:18, Milano Thorndale Bastrop IvySwitch Victoria 0:20, BalconesHeights SMRB(Slayden) FM541 0:24, FosterRd 0:26, FM1572 0:28, Yoakum Cuero D’Hanis Knippa Uvalde FrioRR SmythCrossing Pinto EaglePass GrapeCreek 0:32,

Unstable conditions supressing flights or confounding readings across the SBA, rain in a line moving through Austin from SanAngelo to LaGrange, also from Kerrville to Victoria, McNeil BalconesHeights 0:02, SanMarcos 0:04, Wimberley 0:06, Temp, Belton SanPedro 0:08, SMCenterpoint 0:10, SALutheran 0:12, Seguin TX 0:18, Lulng SMRB(Slayden) 0:20, Lockhart SanAngelo 0:24, Bracken 0:26, SmythCrossing FosterRd GrapeCreek 0:28, EaglePass 0:30, Congress 1:14 (statrting 8:06pm 10 minutes after rain ended )a snapshot at 8:22 pm showed 79,925 (~5% of the summer colony size) in flight heading 4 miles S (~3% of those at altitude) 1:14