Flash Flood in Dawson County, Texas

Heavy rain resulted in flash flooding in Lamesa. There was a video of street flooding in Lamesa submitted via social media. The damage estimate from the flooding and thunderstorm downburst in Lamesa was around ten million dollars.

An upper level trough was over Arizona and New Mexico. A cold front was stalled across portions of Southeast New Mexico and the northern Permian Basin. Hot temperatures were in place ahead of the cold front. An area of low pressure was across the northwestern Permian Basin and a dryline attached to the low extended southward to Pecos County and the Big Bend region. The airmass ahead of the front and east of the dryline was moist and very unstable. There was less moisture at the surface than higher in the atmosphere so this lead to the potential of strong, damaging winds. Wind shear was enhanced near the front. These conditions lead to the development of thunderstorms that produced strong, damaging winds and hail and a landspout tornado across portions of West Texas.