Most of Texas is under a Red Flag Warning on March 14. The Red Flag Warning means critical fire weather conditions are either occurring now or will shortly

Aaron Ward, a meteorologist with the Weather Service office in Amarillo said visibility was “nearly zero” in the greater Amarillo region. The Texas Department of Public Safety said it was responding to multiple crashes across the region because of low visibility from clouds of dust.

Wildfires erupted in Texas on Tuesday afternoon in San Patricio County, and in Buda, a town just south of Austin. Strong winds have knocked out power to more than 20,000 customers.

The National Weather Service's Storm Prediction Center warned of "near historic" fire conditions in the Plains.

In Oklahoma alone, more than 150 blazes were burning, which have destroyed almost 300 structures and killed at least one person.