Based on what we know about the Texas and New Mexico drought of 2010-2011, which weather pattern was the most likely cause of this extended drought?Both states were in a La Nina pattern, which provided an unusual amount of low pressure systems.Both states were in an El Nino pattern, which provided an unusual amount of high pressure systems.Both states were in a La Nina pattern, which provided an unusual amount of high pressure systems.Both states were in an El Nino pattern, which provided an unusual amount of low pressure systems.