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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 atmospheric river connecting Asia to North America in October 2017
Water pressure of a garden hose [58] 300 to 700 kPa 50–100 psi Typical water pressure of a municipal water supply in the US [59] 358 to 524 kPa: 52-76 psi Threshold of pain for objects outside the human body hitting it [60] 400 to 600 kPa 60–90 psi Carbon dioxide pressure in a champagne bottle [61] 520 kPa 75 psi
At the nominal body temperature of 37 °C (99 °F), water has a vapour pressure of 6.3 kilopascals (47 mmHg); which is to say, at an ambient pressure of 6.3 kilopascals (47 mmHg), the boiling point of water is 37 °C (99 °F). A pressure of 6.3 kPa—the Armstrong limit—is about 1/16 of the standard sea-level atmospheric pressure of 101.3 ...
Freezing levels (the elevation at which there can be a mixture of rain and wet snow) will rise substantially into the high country with 5,800 feet in southern British Columbia to 8,500 feet in the ...
The storms will arrive via an atmospheric river, a meteorological phenomenon where a flow of moisture from the Pacific Ocean resembles a fire hose that delivers near-constant rain and higher ...
As a fire hose of rain, known as an atmospheric river, continued in western Washington and Oregon, small streams and rivers became raging torrents posing significant threats to lives and property ...
The change in pressure over distance dx is dp and flow velocity v = dx / dt . Apply Newton's second law of motion (force = mass × acceleration) and recognizing that the effective force on the parcel of fluid is −A dp. If the pressure decreases along the length of the pipe, dp is negative but the force resulting in flow is positive ...
Northern California sees a surge of rain and snow as an atmospheric river arrives. One injured by tree fall in San Francisco as gusts top 60-80 mph in the Bay Area.