Science / Weather / Jet Stream: An area of strong winds that are concentrated in a relatively narrow band in the upper troposphere of the middle latitudes and subtropical regions of the Northern and Southern Hemispheres. Flowing in a semi-continuous band around the globe from west to east, it is caused by the changes in air temperature where the cold polar air moving towards the equator meets the warmer equatorial air moving polarward. It is marked by a concentration of isotherms and strong vertical shear.
Stream Noun Synonyms: brook, brooklet, streamlet, rivulet, tributary, river, freshet, run, watercourse, waterway, channel, literary rill, runnel, N beck, burn, NE except in placenames kill, creek, branch
Stream Verb Synonyms: flow, rush, swarm, tide, flood, deluge, succession, series, row, line, string, chain, barrage, queue
Science / Weather / Jet Streak: A region of accelerated wind speed along the axis of a jet stream. MORE
Science / Weather / Arctic Jet: The jet stream that is situated high in the stratosphere in and around the Arctic or Antarctic Circles. It marks the boundary of polar and arctic air masses. MORE