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Geographic distribution of rain is largely governed by climate type, topography and habitat humidity. In mountainous areas, heavy precipitation is possible where the upslope flow is maximized within windward sides of the terrain at elevation. On the leeward side of mountains, desert climates can exist due to the dry air caused by compressional ...
Low pressure systems moving up the East Coast and through the Great Lakes, bring cold season precipitation to from the Midwest to New England, as well as Great Salt Lake. The snow to liquid ratio across the contiguous United States averages 13:1, meaning 13 inches (330 mm) of snow melts down to 1 inch (25 mm) of water. [1]
In regions where there is upward movement near the ground and divergence at altitude, there is a loss of mass. The pressure becomes lower at this point. At upper levels of the atmosphere, this occurs when there is a meeting of a mass of cold air and another hot one along a thin ribbon called a frontal baroclinic zone.
In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), [1] while high-pressure areas are associated with lighter winds and clear skies. [2]
The main ways water vapor is added to the air are: wind convergence into areas of upward motion, [12] precipitation or virga falling from above, [24] daytime heating evaporating water from the surface of oceans, water bodies or wet land, [25] transpiration from plants, [26] cool or dry air moving over warmer water, [27] and lifting air over ...
A tropical disturbance in the Gulf of Mexico could be days of rainfall to South Florida next week with some localized areas receiving up to a foot of rain through Friday morning.
The National Weather Service's office in Wilmington said the flooding on some Carolina Beach roads was at least three feet deep. A once-in-200-years event: NC towns get a foot of rain in 12 hours ...
Map of pressure systems across North America. A pressure system is a peak or lull in the sea level pressure distribution. The surface pressure at sea level varies minimally, with the lowest value measured 87 kilopascals (26 inHg) and the highest recorded 108.57 kilopascals (32.06 inHg).