The Nampa Police Department issued a traffic alert warning of westbound lane closures on I-84.Two lanes have reopened, Nampa Police said in an update at 7:50 p.m.Police said all westbound lanes were closed after a semitruck caught on fire, but have reported no serious injuries.Idaho News 6 will continue to provide updates on the closure.For Canyon County happenings, news, and more join our Facebook Group: 2C Neighborhood News - Nampa, Caldwell, …