The National Weather Service will offer two free storm-spotter training classes to anyone interested in learning about severe weather.

Classes are about two hours long. In Durango, an optional one-hour advanced training will follow the basic training.

6 p.m. Wednesday, Archuleta County Extension Office, Archuleta County Fairgrounds, 344 Highway 84.6 p.m. Thursday, Pine Room at the Extension Building, La Plata County Fairgrounds, 2500 Main Ave., Durango.For more information, visit www.weather.gov/gjt/spotter.