All weather systems
“Sky river express - atmospheric highway delivering tropical moisture bombs”
Formation
Jet stream guides narrow bands of moisture from tropics
Impact
Can provide 30-50% of annual precipitation in single events
Technical specs
Wind50-150 mph at jet level
RegionsWest coasts of continents, especially California, Pacific Northwest
boss level
Famous encounter
The 'Pineapple Express' - Famous AR connecting Hawaii to the US West Coast
Etymology
Coined in the 1990s to describe the filamentary structure of atmospheric water vapor transport