Medusa's Revenge/The Fearsome Forecasts Mona the Vampire : Season 5 Episode 13

Mona, Charley and Lily become alarmed when there's a local garter snake population explosion. / When the new weatherman Jonathan Jupiter is able to flawlessly predict the weather Mona and pals start to wonder if he isn?t controlling the latest terrible storms via the flying saucer he insists is just a weather balloon.