M mimi66 Guest May 13, 2009 #1 what is needed for a severe thunderstorm? (using these): Air masses, Fronts, mountain slopes.
J jdare Guest May 13, 2009 #2 when cold (front) meets up with warm air (masses) they produce thunderstorms. The severity of the storm depends on how high the clouds are in the atmosphere. "the higher they are the more severe they are"
when cold (front) meets up with warm air (masses) they produce thunderstorms. The severity of the storm depends on how high the clouds are in the atmosphere. "the higher they are the more severe they are"
