The winds are expected to be strongest and the fire risk highest in an area extending from north Texas across central Oklahoma into southeast Kansas and including a smidgen of Missouri. Wind speeds could top 90 miles per hour in the most extreme cases.

Philadelphia hospital patients were also warned about possible exposure to the highly contagious virus just days after a warning for Dulles airport travelers.

Measles are surging in Texas, with experts warning no sign of slowing until at least May. The outbreak has now spread to its third state, Oklahoma.