Severe thunderstorms impacted the west Texas South Plains during the afternoon and evening of the 21st. This severe weather event brought the region's most monetarily significant weather-related impacts of 2010, and dealt an extensive loss to South Plain's cotton crops - the staple of the local economy.
Thunderstorms developed as discrete supercells over the southwestern South Plains during the mid afternoon hours. As storms increased in number and intensity, swaths of large hail devastated cotton crops. The most significant damages occurred in Terry, Lynn, and Lubbock Counties. At the time, South Plains crops were at maturity and farmers had just begun harvests and cotton markets were trading at a historic high of $1.26 per pound.
Post-storm surveys indicated that an estimated 100,000 acres of cotton were severely degraded or destroyed. Total economic damages were estimated to approach $50 million by state officials. Newspaper articles across the region contained interviews from individual farmers that claimed losses in excess of $50,000. Losses were not fully recouped from insurance, since pay-outs were based upon decade-long earning histories and not reflective of record high cotton prices that would have been realized by a healthy harvest. Further, local agricultural officials stated that the devastating storms struck at a time when producers had the maximum investment in crops, so the true impact on the local economy may be immeasurable.
Damages to South Plains cotton crops were later exacerbated by strong winds and blowing dust on the 25th.