Bob Conzemius Tornado Bob on the January Thaw in the Big Weather Picture By Heidi Holtan • Jan 16, 2018 Tune in to this Tuesday morning show that delves into meteorological glossaries. Tornado Bob on Polar Vortex By Heidi Holtan • Dec 13, 2016 Bob Conzemius Dr. Bob Conzemius is our Big Weather Picture guy. Tuesday mornings he and John Latimer do a deep dive into weather. Have a burning weather question? Email us!