WIVB weekend morning meteorologist Nick Guzzo signed off from the Buffalo CBS affiliate after a little more than a year.“Today is a bittersweet day as it is my last night on-air in Buffalo,” he wrote on social media. “I have decided to cut my time short in Buffalo and leave the broadcast news industry. Thank you again to everyone that I have met when I am out running errands and who tuned into my forecasts.”Before joining the station in October 2023, he worked at sister station, WETM, in Elmira, N.Y.There’s…