EF0 tornado in Glasscock County, Texas

A trained spotter reported a brief tornado approximately 5 TO 8 miles southeast of the intersection of FM 1379 and TX 158 at 1756 CST. A damage survey was conducted, which confirmed one power pole was snapped near its base and another one was damaged along TX 158. Some minor tree limb damage was also noted near the same area. Please see the attached image.

On April 11, 2009, a surface high northeast of the region resulted in easterly upslope flow over most of the CWA. Meanwhile, a mid to upper level low near Southern California approached the area from the west. Although the deepest moisture was confined to the Gulf Coast (due to the previously mentioned surface high) there was enough moisture convergence along a stalled surface boundary and dryline. Most unstable CAPE values along these features of 1000 j/kg and 0-6 km bulk shear magnitudes of 60 kt allowed for severe storms to develop as the dynamics neared the area during the late afternoon and early evening hours. A Severe Thunderstorm Watch was issued from 1520-2300 local.