ShopTalk | Weather KVOA Chief Meteorologist Jimmy Stewart Announces Retirement By Andrew Gauthier on Feb. 8, 2011 - 11:04 AM KVOA’s chief meteorologist Jimmy Stewart announced on Monday that he will retire later this year. Stewart, 69, has been with KVOA since 1990. He joined the Tucson NBC-affiliate after nine years with crosstown rival KOLD. & ...