A very active weather day across West Texas on March 18th-19th, 2012. Supercells across the Rolling Plains and Red River Valley produced isolated tornado reports with large hail and damaging winds. Isolated storms forming on a retreating dryline along the Caprock escarpment became severe during the evening hours. A left-split supercell racing north produced a 73 mph wind gust at the WTM Macy Ranch station in Garza County and 66 mph gust at the Silverton 7E station. Late in the evening, the retreating dryline collided with an approaching Pacific front resulting in an explosion of storms by late night. A Quasi Linear Convective System (QLCS) formed over West Texas with numerous embedded vortices from the Texas Panhandle to the Permian Basin. Severe wind gusts from the line of storms broke through the stable nocturnal boundary layer across the southeast Texas Panhandle after midnight on the 19th. The WTM station at Clarendon 2WSW hit 75 mph after 1 am on the 19th.





TTU SCOUT field project deployed for line of storms late on the 18th. Several vortices in the line passed through the project domain.



TTU SCOUT field deployment at Reese Center for QLCS passage late on the 18th-19th. KA-1 and KA-2 radar trucks with STICKNET probes deployed at or near Reese Center.


 
 

STICKNET Probe 101 (top) and probe 103 (bottom) of wind speed/direction, BP, temperature and RH for the passage of one or more vortices along the QLCS late on March 18th/early March 19th. Image Credits: Gunther, Hirth, BCM.



Ka-band Radar Truck #2 PPI radar loop with embedded STICKNET obs of QLCS passage with several vortices: CLICK HERE - 15MB loop!


 
 
 

Ka-band Radar Truck #1 PPI images with embedded STICKNET obs of the vortex that passed over the STICKNET array. Image Credits: Gunther, Hirth, BCM.



NWS Lubbock link for Severe Weather on March 18-19, 2012: CLICK HERE!