![desert tumbleweed and stormy sky](https://www.dustndivinity.com/wp-content/uploads/2020/12/tumbleweed-1024x683.jpg)
Air mass antarctic barometric pressure chinook closed low continental air mass diffraction dust bowl fetch fogbow hygrograph instrument flight rules (ifr) mist positive vorticity advection pre-frontal squall line ridge snow blindness stagnation area subtropical air summer undercast unstable/ instability. Absorption bow echo chemosphere condensation funnel diffluence downdraft evapotranspiration eye eye wall filling fresh water fusion gustnado heat stroke hydrologic cycle hygrograph isohel isopleth palouser