OKLAHOMA CITY (AP) - The National Weather Service has issued a tornado watch for the Oklahoma Panhandle.

The watch is in effect until 11 p.m. Tuesday and runs along and 125 miles east and west of a line from 50 miles west-northwest of Guymon to 45 miles southwest of Amarillo, Texas.

Beaver, Cimarron and Texas counties are affected.

The weather service warns that besides tornadoes, very large hail is possible with the storms.

(Copyright 2010 by The Associated Press. All Rights Reserved.)