weather quiz May 28, 2020 4:57 pm Weather Quiz: Circulation at the Equator NBC 5 Senior Meteorologist David Finfrock asks who discovered the circulation of rising air over the equator that flows toward the poles and then descences in the subtropics. Local 0:34 Weather quiz: Thunderstorm air 0:49 Weather Quiz: Baroclinic zone 0:38 Weather quiz: Tornado timing 0:45 Weather Quiz: Wind Speed 0:40 Weather Quiz: Vegetation moisture