October 21, 2026

Mark Torregrossa

MLive Chief

Meteorologist

Media Meteorology

Mark Torregrossa is Chief Meteorologist for MLive and owner of Michigan Meteorological Services. A meteorologist for more than 37 years, Mark specializes in forecasting and communicating weather impacts across the Great Lakes region, with particular expertise in severe weather, winter storms, agricultural weather, and climate trends. Mark holds a Bachelor of Science degree in Meteorology from Northern Illinois University. Throughout his career, he has developed innovative weather products and services that have helped businesses, agricultural producers, media organizations, and the public make informed decisions. Through his work at MLive, Mark reaches millions of readers with weather analysis, forecasts, and explanations that translate complex meteorological science into practical, actionable information. As a speaker, Mark combines scientific expertise with real-world forecasting experience, offering audiences valuable insights into weather risks, climate patterns, and the challenges of communicating weather information in an increasingly connected world.