Semi-permanent Northern Hemisphere Surface Pressure Systems


A. Subtropical Highs 


Related Both To Temperature Diffferences Between Equator/Subtropics (Hadley Cell) and Continent/Ocean


(Move North and Strengthen In Summer/Move South and Weaken in Winter)


Pacific High

Bermuda High


B. "Monsoonal" Pressure Systems


Related To Continent/Ocean Temperature Differences


North America


North American Thermal Low (Summer)

Great Basin High (Winter)




Gulf of Alaska Low  (Winter)




Icelandic Low (Winter)




Asian Thermal Low (Summer)

Siberian High (Winter)