The polar front jet stream

♤ It is originated because of temperature difference.

♤ It is associated with the polar front zone7 in each hemisphere (figure 23).

♤ It runs at a more meandering path than the Sub Tropical Jet Stream

♤ It extends between 40 and 60 latitudes in both Hemispheres.

♤ It is found at a height between 6km and 9km in the atmosphere.

♤ It swings towards poles in summers and towards equator in winter. When swinging to south it takes very cold air with it to subtropical region.