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Topic: Santa Ana wind


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  Santa Ana wind - Wikipedia, the free encyclopedia
Santa Anas are a type of foehn wind, the result of air pressure buildup in the high-altitude Great Basin between the Sierra Nevada and the Rocky Mountains.
Santa Ana winds may get their name from the Santa Ana Mountains that lie in Orange County or the Santa Ana Canyon through which the winds are noted for their high speed.
To the north, in the Santa Barbara area, the Santa Ana winds are weaker and are usually held at bay by topography: the local mountains offer no prominent outlets, in the form of passes or river valleys, from the elevated inland source areas.
en.wikipedia.org /wiki/Santa_Ana_wind   (626 words)

  
 Wind - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-11-06)
Given a difference in barometric pressure between two air masses, a wind will arise between the two which tends to flow from the area of high pressure to the area of low pressure until the two air masses are at the same pressure, although this will be strongly modified by the Coriolis effect.
There are synoptic winds that result from pressure differences in surface airmasses at the middle latitudes, and there are winds that come about as a consequence of geographic features such as oceans, lakes, mountains, and deserts.
The opposite of a katabatic wind is an anabatic wind, or an upward-moving wind.
encyclopedia.worldsearch.com /wind.htm   (2332 words)

  
 Santa Ana - Wikipedia, the free encyclopedia
Santa Ana is the Spanish-language name of Saint Anne, the mother of Mary, the mother of Jesus.
Santa Ana Pueblo, a Native American tribe in New Mexico
Santa Ana is also a variant spelling of the name of Antonio López de Santa Anna (1794-1876), a Mexican general and president who governed Mexico intermittently during the first half of the 19th century and who took part in the Texas Revolution.
en.wikipedia.org /wiki/Santa_Ana   (148 words)

  
 The Santa Ana Winds
Named after Southern California's Santa Ana Canyon and a fixture of local legend and literature, the Santa Ana is a blustery, dry and warm (often hot) wind that blows out of the desert.
That the winds are warm is shown in this next image, which shows the 6 km grid that zooms in on the LA basin.
The winds represent the flow at 700 m (430 ft) above sea level rather than the 40 m winds, and the longest vector is for 15 m/s (34 mph).
www.atmos.ucla.edu /~fovell/ASother/mm5/SantaAna/winds.html   (1009 words)

  
 Surfline | Santa Ana Wind   (Site not responding. Last check: 2007-11-06)
Santa Ana winds are a godsend to Southern California surfers and a nemesis to firefighters, homeowners and eczema sufferers.
The winds tend to peak at night and in the early morning when California's predominant onshore breeze, a tempering factor, is dormant.
For when the Santa Ana winds, pregnant with dust, blow in from the desert and meet the humble California surf, they send light wisps of water up from the crests of descending verdant waves and make mystic for surfers from Oxnard to San Diego.
www.surfline.com /surfaz/santaanawind.cfm   (514 words)

  
 Santa Anas
The Santa Ana is a dry, sometimes hot and dusty, wind in southwestern California that blows westward through the canyons toward the coastal areas.
Santa Anas are a seasonal phenomena, occurring mostly during fall, winter and spring, tending to peak in December.
Winds are often strongest in mountain passes which are ducts for the continental air flow.
meteora.ucsd.edu /cap/santa_ana.html   (733 words)

  
 The Environmental Literacy Council - The Santa Ana: Katabatic Winds
While the prevailing winds in California come from the west from the cool Pacific ocean, the Santa Ana, named after the city of Santa Ana near Los Angeles, comes from the high, dry desert plateaus of the mountain ranges east of Los Angeles and San Diego.
Winds pass over the top of mountains, but, like the eddies that swirl near rocks on a rocky shoreline, some air breaks away from the main wind stream, where it gathers and cools.
In the case of the Santa Ana wind, these conditions are usually provided by high pressure in the northern Rocky Mountains of the U.S. The clockwise air circulation of this high pressure system forces the winds downwards from the high plateau.
www.enviroliteracy.org /article.php/672.html   (708 words)

  
 The Observatorium - Observation of the Week   (Site not responding. Last check: 2007-11-06)
The Santa Ana is a hot, dry, dusty wind in southwestern California that blows westward through the canyons toward the coastal areas during spring and late fall.
A Santa Ana is a fierce, hot, dry, and dusty wind that blows from the east across the mountain passes of Southern California, especially those between the San Gabriel Mountains north of Los Angeles and the San Bernardino Mountains further east.
Wind speeds in excess of forty miles per hour are typical, and locally, wind gusts may reach 100 miles per hour.
observe.arc.nasa.gov /nasa/ootw/1996/ootw_961029/ob961029.html   (710 words)

  
 Untitled Document
Two types of high wind producing offshore wind events that have been particularly well documented are the Santa Ana Winds of Southern California and the Sundowner Winds of Santa Barbara.
The Tejon Pass winds commonly occur in transitions from Sundowner to Santa Ana winds.
While much more localized, these winds and can be significantly stronger than either the Sundowner or Santa Ana and can close the Grapevine section of Interstate 5, thus seriously disrupting commerce and travel on the main route north from the LA Basin.
www.wrh.noaa.gov /wrh/talite0322.htm   (1593 words)

  
 MESO-SCALE CIRCULATION
The south wind blows from Italy crossing the mountains and descends on the lee side (north side) of mountain where the Foehn village is located.
The warm and dry winds that descend on the lee side of a mountain in any part of the world (Chinook wind and Santa Ana wind, for example).
The warm and dry wind on the eastern slopes of the Rocky Mountains (Montana, Colorado).
www.csun.edu /~hcgeg004/meso.html   (852 words)

  
 Untitled Document
Wind gusts reached at least 90 miles per hour in highly populated areas and at least 106 miles per hour in the mountains.
The winds in the 6 - 7 January 2003 case were accentuated by the extremely strong parameters, with the extremely strong surface pressure gradients playing a key role in making the event widespread.
Winds in areas that are generally not favored (away from the canyons/passes and mountain slopes) seem to only respond strongly to surface gradient if the upper level support is extremely strong.
www.wrh.noaa.gov /wrh/talite0308.htm   (1791 words)

  
 Fire Department   (Site not responding. Last check: 2007-11-06)
The term Santa Ana wind refers to a narrow river of fast moving air that blows from northern Utah and Nevada into Southern California.
Winds are labeled as Santa Ana winds when they blow 25 miles per hour from the north for sustained periods.
As the wind descends the mountains and passes, the number of molecules in the region’s air increases.
www.ci.monrovia.ca.us /city_hall/fire_department/fire_santa_ana_wind.htm   (259 words)

  
 Section 10 - Windstorm   (Site not responding. Last check: 2007-11-06)
While high impact wind incidents are not frequent in the area, significant Santa Ana Wind events and sporadic tornado activity have been known to negatively impact the local community.
A downburst is a straight-direction surface wind in excess of 39 mph caused by a small-scale, strong downdraft from the base of convective thundershowers and thunderstorms.
Wind conditions may add to the destruction associated with other natural hazards; such as wind driven wildfires, or as mentioned before the combination of rain saturated ground and the additional forces caused by the wind.
www.westcov.org /fire/hazard/page14.html   (3239 words)

  
 Outer Life: The Santa Ana Condition
To live with the Santa Ana is to accept, consciously or unconsciously, a deeply mechanistic view of human behavior.
She knows I hate the Santa Anas and she knows I'd rather live up the coast, far from the reach of the Santa Anas (which would, incidentally, place us far from her).
So as the winds from hell are blowing, as I'm clenching and unclenching my fingers in antsiness and uneasiness, she puts a happy face on the situation, urging me to listen to the song of the blowing winds, to breath the clean air, to pity those poor northerners, drenched in yet another rain storm.
www.outerlife.com /2004/09/my_santa_ana_co.html   (568 words)

  
 The California Aggie   (Site not responding. Last check: 2007-11-06)
The dangerous fire conditions that lead to the outbreak were caused by a combination of five rain-free months in Southern California and the hot and dry winds that commonly blow from the northeast in the fall.
These winds, which occur most commonly in October and November, are funneled through the canyons and passes of coastal Southern California.
According to the National Weather Service, no measurable rain has fallen in downtown Los Angeles since mid-May. The current Santa Ana wind event is slated by weather forecasters to end in the coming days, as wind directions reverse and begin to blow cool, moist air from the ocean into the valleys of Southern California.
www.californiaaggie.com /article?id=629   (757 words)

  
 Santa Ana wind   (Site not responding. Last check: 2007-11-06)
Santa Ana winds are warm, dry winds that characteristically appear in Southern California weather during late autumn and winter.
The air is forced down the mountain slopes of the Transverse Ranges and out towards the western Pacific coast; the air mass is heated by compression as it falls and further heated and dried by a trip through the Mojave Desert before reaching the Los Angeles Basin at typical speeds of 35 knots.
The combination of wind, heat, and dryness is notoriously conducive to wildfires.
www.sciencedaily.com /encyclopedia/santa_ana_wind   (197 words)

  
 BBC - Weather Centre - Weather News - A hot wind blows no good
The reason for the abrupt change from wet to dry, and the California firefighters' nemesis, is the Santa Ana wind.
In the late summer months, this strong wind blows from the Californian desert towards the sea changing the temperate coastal climate to a hot, dry and arid one.
And it was during the hot, dry winds of 1984 that the noted serial killer Richard Rameriz, aka "The Night Stalker", went on a killing spree.
www.bbc.co.uk /weather/ukweather/daily_review/news/28102003news.shtml   (382 words)

  
 USATODAY.com   (Site not responding. Last check: 2007-11-06)
The factors needed to stir up Santa Ana winds begin with an area of high air pressure to the north and east of Southern California.
Winds blow clockwise around high pressure in the Northern Hemisphere, which means that winds on the southern side of the high-pressure area blow from the east toward the Pacific Ocean, toward lower air pressure off shore.
The easterly winds push air from over the inland deserts of California and the Southwest, which means the air starts out dry.
www.usatoday.com /weather/wsanta.htm   (304 words)

  
 USATODAY.com - Damaging winds leave two dead in Southern California   (Site not responding. Last check: 2007-11-06)
LOS ANGELES (AP) — The seasonal Santa Ana wind that has stoked wildfires and snapped power poles across Southern California began to weaken Tuesday as firefighters tried to rein in a blaze threatening Malibu homes and utility crews worked to restore electricity.
The erratic wind plagued efforts to contain the Malibu blaze, which grew to 2,200 acres as it hopscotched around hundreds of houses in the rugged Santa Monica Mountains.
The wind was blowing at 20 to 30 mph in the canyons with gusts up to 60 mph on the ridges.
www.usatoday.com /weather/news/2003-01-06-california-winds_x.htm   (513 words)

  
 Santa Ana   (Site not responding. Last check: 2007-11-06)
Santa Ana Santa Ana is Spanish for "Saint Anne", the mother of Mary, the mother of Jesus.
There are a number of places and things named directly or indirectly for her: The Santa Ana River in the southwestern United States Santa Ana, California Santa Ana wind Santa Ana Pueblo, a Native American tribe in New Mexico Santa Ana, El Salvador See also Santa Anna.
The six-year-old daughter of Pivotal finished first in the 2004 Santa Ana and was disqualified to last for interference.
bonose.com /Santa+Ana.html   (636 words)

  
 CNN.com - Santa Ana wind begins to weaken - Jan. 7, 2003
The seasonal Santa Ana wind that has stoked wildfires and snapped power poles across Southern California began to weaken Tuesday as firefighters tried to rein in a blaze threatening Malibu homes and utility crews worked to restore electricity.
The Santa Ana wind roared into Southern California late Sunday after high pressure set in over the West and gusted up to 79 mph, sending air racing toward the Pacific coast.
Two deaths were linked to the strong wind: A San Diego woman struck by a falling tree and a passenger in a car hit by a flying pickup truck cover on a freeway in Riverside.
cnn.com /2003/US/West/01/07/california.wind.ap   (543 words)

  
 deseretnews.com | Santa Ana winds, drought key players in fire's violence
High pressure over the Great Basin forces cool, dry desert air toward the southwest and through the mountains of Southern California, including the Cajon Pass area, 60 miles east of Los Angeles, that was at the center of the largest of the fires burning Sunday.
As the wind travels downhill toward the coast, it is funneled through narrow canyons, compressing, heating and accelerating the air, said Robert Balfour, a National Weather Service meteorologist.
The Santa Ana wind typically blows between September and February.
deseretnews.com /dn/view/0,1249,520033968,00.html   (619 words)

  
 Geography 103
Tends to have Santa Ana wind following the passage of the storm.
Winds blow from sea to land or onshore winds.
Winds blow from land to sea or offshore winds.
www.csun.edu /~hcgeg004/12.html   (854 words)

  
 SignOnSanDiego.com > News > Metro -- Santa Ana conditions put firefighters on alert
SAN DIEGO – With forecasters predicting a mild Santa Ana wind condition for mid-week, state firefighters are gearing up for possible trouble, bringing in extra equipment and additional manpower.
Forecasters say there will be a mild Santa Ana in the region over the next several days, with breezy winds blowing from east to west and bringing higher temperatures.
Northeasterly winds are expected to gust at speeds up to 35 miles per hour with humidity levels as low as 10 percent by day and 15 percent at night.
www.signonsandiego.com /news/metro/20051004-1159-bn04fire.html   (329 words)

  
 FirstCoast News.com - Print Article
SAN DIEGO (AP) -- The hot Santa Ana wind driving wildfires across parts of Southern California eased Monday but officials warned that there was still a threat from the flames that had devoured entire neighborhoods and killed at least 13 people.
Authorities said the fierce Santa Ana wind appeared to be easing.
The Santa Ana wind season usually stretches from September through February, with October often the strongest.
www.wjxx.com /printfullstory.aspx?storyid=9844   (794 words)

  
 MSN Encarta - Search Results - Santa Ana (California)
Santa Ana (California), city in southwestern California and seat of Orange County.
The prevailing winds of all of California are the westerlies, so-named because they blow from the west toward the east.
Riverside (California), city in southwestern California and seat of Riverside County, on the Santa Ana River.
encarta.msn.com /Santa_Ana_(California).html   (159 words)

  
 Mount Washington Observatory: Glossary of Weather Terms   (Site not responding. Last check: 2007-11-06)
The Rocky Mountains' chinook wind, Los Angeles basin's Santa Ana wind, and the Swiss Alps' foehn wind are all different names for a wind with the same characteristics.
The Native Americans living on the eastern side of the Rockies referred to the wind as the "snow eater." The chinook wind has been known to increase the air temperature by 34° F in 7 minutes and melt 5 feet of snow in as little as 12 hours.
The winds circulate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
www.mountwashington.org /glossary/glosc.html   (2945 words)

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