NASA’s announcement last week of an atmospheric shift over North America is generating heated debate among ... and temperature layer activity portending a profound shift in air mass interaction ...

LAREDO, Tex. (KGNS) -A cool airmass crossing the Rockies into the northern Great Plains will reach into central Texas, possibly as far south as the Hill Country Friday night and Saturday before ...

and continental tropical in North America. NEXT Weather Meteorologist Kylee Miller says, Those air masses tend to move around. When air masses collide and clash together air mass boundaries form ...

AUSTIN (KXAN) – Meteorologists classify air masses based on their humidity and temperature. The location of an air mass is a key factor in determining its humidity. Air masses that form over ...

North America is a vast Northern Hemisphere continent ... due to chinook winds from the Rocky Mountains, cold continental air masses from Canada cause frigid and dry winters.

in the fourth major air accident in North America in three weeks. Dramatic video posted online showed the Delta Air Lines jet belly up on a snow-covered tarmac, with people walking away from the ...