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An explanation from the National Weather Service on atmospheric rivers. An atmospheric river (AR) is a narrow corridor or filament of concentrated moisture in the atmosphere. Other names for this phenomenon are tropical plume, tropical connection, moisture plume, water vapor surge, and cloud band. [1] [2] Composite satellite photos of an ...
Forty-six atmospheric rivers made landfall on the U.S. West Coast during water year 2023, according to the Scripps Institution of Oceanography's Center for Western Weather and Water Extremes. Nine ...
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
Pineapple Express is a specific recurring atmospheric river both in the waters immediately northeast of the Hawaiian Islands and extending northeast to any location along the Pacific coast of North America. It is a non-technical term and a meteorological phenomenon. It is characterized by a strong and persistent large-scale flow of warm moist ...
It occurs when strong winds push tropical water vapor into a river-like band that can rush ashore and wreak havoc in the form of extreme rainfall and even mudslides, according to the National ...
A well-known type of atmospheric river is called a "Pineapple Express" because it flows from the Hawaiian Islands. Strong ARs transport water vapor roughly equivalent to 7.5 to 15 times the ...
Unaware of Penfield's discovery, University of Arizona graduate student Alan R. Hildebrand and faculty adviser William V. Boynton looked for a crater near the Brazos River in Texas. [10] Their evidence included greenish-brown clay with surplus iridium, containing shocked quartz grains and small weathered glass beads that looked to be tektites. [16]
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