Concept
Orographic lift
Related concepts (19)
Low-pressure area
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), while high-pressure areas are associated with lighter winds and clear skies. Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing Coriolis forces.
Oregon
Oregon (ˈɒrɪɡən) is a state in the Pacific Northwest region of the United States. Oregon is a part of the Western United States, with the Columbia River delineating much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. The 42° north parallel delineates the southern boundary with California and Nevada. The western boundary is formed by the Pacific Ocean. Oregon has been home to many indigenous nations for thousands of years.
Chinook wind
Chinook winds, or simply Chinooks, are two types of prevailing warm, generally westerly winds in western North America: Coastal Chinooks and interior Chinooks. The coastal Chinooks are persistent seasonal, wet, southwesterly winds blowing in from the ocean. The interior Chinooks are occasional warm, dry föhn winds blowing down the eastern sides of interior mountain ranges. The coastal Chinooks were the original term, used along the northwest coast, and the term in the interior of North America is later and derives from the coastal term.
Snow
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away.
Fog
Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog can be considered a type of low-lying cloud usually resembling stratus, and is heavily influenced by nearby bodies of water, topography, and wind conditions. In turn, fog affects many human activities, such as shipping, travel, and warfare. Fog appears when water vapor (water in its gaseous form) condenses. During condensation, molecules of water vapor combine to make tiny liquid water droplets that hang in the air.
Fjord
In physical geography, a fjord or fiord ('fjɔrd,_fi:ˈɔrd) is a long, narrow inlet with steep sides or cliffs, created by a glacier. Fjords exist on the coasts of Antarctica, British Columbia (Canada), Chile, Denmark, Germany, Greenland, the Faroe Islands (Denmark), Montenegro, Iceland, Ireland, Kamchatka (Russia), the Kerguelen Islands (France), Newfoundland and Labrador (Canada), New Zealand, Norway, Novaya Zemlya (Russia), Nunavut (Canada), Quebec (Canada), Argentina, Russia, South Georgia Island (United Kingdom), Tasmania (Australia), Scotland and the states of Washington, Maine, and Alaska (United States).
Cherrapunji
Cherrapunji (ˌtʃɛrəˈpʌndʒi,_-ˈpʊn-) or Sohra is a sub-divisional town (Proposed District) East Khasi Hills district in the Indian state of Meghalaya. It is the traditional capital of ka hima Sohra (Khasi tribal kingdom). Sohra has often been credited as being the wettest place on Earth, but for now nearby Mawsynram currently holds that distinction. It still holds the all-time record for the most rainfall in a calendar month and in a year, however: it received in July 1861 and between 1 August 1860 and 31 July 1861.
Lee wave
In meteorology, lee waves are atmospheric stationary waves. The most common form is mountain waves, which are atmospheric internal gravity waves. These were discovered in 1933 by two German glider pilots, Hans Deutschmann and Wolf Hirth, above the Krkonoše. They are periodic changes of atmospheric pressure, temperature and orthometric height in a current of air caused by vertical displacement, for example orographic lift when the wind blows over a mountain or mountain range.
Prevailing winds
In meteorology, prevailing wind in a region of the Earth's surface is a surface wind that blows predominantly from a particular direction. The dominant winds are the trends in direction of wind with the highest speed over a particular point on the Earth's surface at any given time. A region's prevailing and dominant winds are the result of global patterns of movement in the Earth's atmosphere. In general, winds are predominantly easterly at low latitudes globally.