What Nevada city is the largest in Elko county and is homes to a NWS office?
WNG700:  It is programmed from the National Weather Service forecast office in Elko, Nevada with its transmitter located on near Jackpot. Elko, Nevada: Elko (Shoshoni: Natakkoa, "Rocks Piled on One Another") is the largest city and county seat of Elko County, Nevada, United States.
Elko