If this same wind moves out over the middle of a large calm lake, its speed and direction would probably be: These winds, known as Chinook winds, can bring quick temperature changes. In 2010, one of the authors of the Calgary study, W.J. It has been reported that wind gusts from a Chinook wind can exceed speeds of 120 km/h (75 mph). Chinook winds are most common in a region called the Livingston Box, a broad zone extending from north central Montana to southeast Wyoming, centered near Livingston, Montana. How to Write a Great Finance Essay on Time Expert Katabatic wind, also called downslope wind, or gravity wind, wind that blows down a slope because of gravity. Mistral. Chinook Winds Executive Staff Map Regional Council Reports Policies & Forms Contact Us News & Events Regional Meeting 2020 Wrap Up Latest Updates Newsletter Sign Up Past Newsletters GC44 Local Arrangements Donate (Image: © Autumn Sky Photography/Shutterstock), Myths and Legends of British North America. The Iroquois 4. The first Olde Stage Fire in 1990, fanned by 80-mph winds, burned about 3,000 acres (1,214 hectares), destroying 15 buildings and damaging many others. The bise is accompanied by heavy cloud. The air mass, now dry after releasing its moisture in the mountains, warms as it moves down the eastern side of the mountains. Chinook Beneficial Wind Foehn like winds in USA and Canada move down the west (a) The pampas (b) The Velds (c) The Prairies (d) The Savannas Recent Posts Essay Examples and Why Do You Need Them How to Amaze a Professor with Your Dissertation? c. observed wind speed and direction on a surface map d. spinning wind patterns caused by buildings or other obstructions 5. Several studies have attempted to correlate migraine occurrences with the Chinook winds. The Comanche The Chinook arises where the plains and prairies meet various mountain ranges. Wind speeds depend on the difference in air pressure over the plateau and over the surroundings. They relate their research to various places that experience similar wind phenomena around the world, such as the Chinook winds across the United States and Canada. It occurs at night, when the highlands radiate heat and are cooled. A föhn or foehn (UK: /fɜːn/,[2][3] US: /feɪn/) is a type of dry, warm, down-slope wind that occurs in the lee (downwind side) of a mountain range. Because of this, chinook winds are often known as the "snow eaters.". Life returned, as did the people and Thunderbird's daughters. Several research teams have studied the relationship between strokes and the Chinook winds. Unlike Chinook or Foehn, Santa Ana blows as air channel through east-west stretching Santa Valley and due to descend over the western slope of Rockies they become even more hot and dry. It occurs at night, when the highlands radiate heat and are cooled. Please refresh the page and try again. The author wrote that migraine patients should first and foremost be listened to and that more research into understanding the various factors that could lead to migraines needs to occur. sea breeze A __________ is another name for winds that blow in … When the winds died down, it took 27 minutes for the temperature to drop 58 degrees, back to where it was in the morning. One such study, by Canadian neurologists Thalia Field and Michael Hill, published in the journal Stroke in 2002, recorded data such as hourly wind, temperatures, humidity and barometric pressure over a five-year period and compared it to the number and types of strokes that occurred in Calgary. For example, Sirocco, Harmattan, are seasonal winds blowing across Northern Africa and the Leveche blows over Southern Spain. Suppose the wind speed increased from 5 mph to 10 mph. Question 29. When the warm, dry, fast-moving Chinook winds pass over snow-covered areas, the snow often vaporizes before it has a chance to melt, according to the U.S. Geological Survey. Chinook Winds (Foehn Winds) Chinook winds (or Foehn winds) develop when air is forced up over a mountain range. Local winds like the Sirocco, Harmattan, leveche, Nor’westers, Mistral, Chinook, Foehn can be found only in certain regions. But the research has not resulted in clear evidence of a correlation. This can have a widespread negative effect. If BC=10 cm, AC = 8cm and BP=9 cm, then AP=. Asia Central Asia. Visit our corporate site. The Chinook usually begins with a sudden change in wind direction towards the west or southwest, and a rapid increase in wind speed. In central Asia, they are afganet; in the Andes of South America, these winds are called puelche; and in southern California, they are known as the Santa Ana winds. The recorded temperature at 7:30 a.m. was minus 4 F (minus 20 C) and when the Chinook winds began shortly after, the temperature increased 49 degrees F (7 degrees C) in just two minutes and by 9 a.m., when the Chinooks died down, residents were experiencing 54-degree (12 C) weather. The second Olde Stage Fire in 2009 also burned about 3,000 acres while being fueled by 60-mph winds. In Pincher Creek, the temperature rose by 41 C (from -19 C to 22 C) in one hour in 1962. The Chinook Wind A warm, westerly wind found in western North America – Canada and the USA, when air from the Pacific blows over the Rocky Mountains and other upland areas. Becker gives several reasons to support his claim, including multiple migraine triggers, a single versus several triggers leading to a migraine, weather related factors, and timing. Several buildings were destroyed and many others threatened. Thank you for signing up to Live Science. Soil can lose its moisture and its mass as water and soil are carried away by the high-speed winds, according to Mountain Nature. The gusts can also reach up to 80 mph (128 km/h) as the winds come down the mountains and pass over the plains. Black Hills Weather: The Snow-Eating Wind, NOAA: This Month in Climate History: January 1982 Damaging Chinook Winds, Black holes may not exist, but fuzzballs might, wild theory suggests, Most accurate map of our galaxy pinpoints 1.8 billion cosmic objects, Sprawling 8-mile-long 'canvas' of ice age beasts discovered hidden in Amazon rainforest, Lost islands beneath the North Sea survived a mega-tsunami 8,000 years ago. In which region the wind Foehn blows? Bora (Adriatic Sea): it descends from mountains during the winter season. (c) The Prairies Wind speed ranges from 16 km/h to 60 km/h, gusting to 100 km/h. Bora, originally defined as a very strong cold wind that blows from the northeast onto the Adriatic region of Italy, Slovenia, and Croatia. We have Provided Life in the Temperate Grasslands Class 7 Geography MCQs Questions with Answers to help students understand the … According to the Weather Doctor, fire risk increases with the Chinook winds because of the heat and arid conditions. The term Chinook Wind is also used in British Columbia, and is the original usage, being rooted in the lore of coastal tribes and brought to Alberta by the fur-traders. Local winds blow between high pressure and low pressure areas. This wind blows in the Pacific Northwest of Canada and America, and takes its name from the Native People of the area. It is also known as Purga when over the tundra) The Blackfoot people term this wind "Snow Eater"; however, the more commonly used term "Chinook" originates from the language spoken by the eponymous people in the region where the usage was first derived. _____ is a chinook-like wind that occurs in southern California, which greatly increases the threat of forest fires in this region. Chinook winds develop when warm, moist air blows from the Pacific Ocean in the northwest region of North America toward the Rocky Mountain range, according to Rocky Mountain National Park. Check the below NCERT MCQ Questions for Class 7 Geography Chapter 9 Life in the Temperate Grasslands with Answers Pdf free download. How to Amaze a Professor with Your Dissertation? It is akin to a Foehn wind and approaches the Rocky Mountains from the Pacific Ocean. Santa Ana is a dry and warm local wind that occurs in the Santa Ana Valley of Southern California and it is almost similar to Chinook or Foehn with regard to thermal and moisture characteristics. It's another hot, dry wind and is also known as the 'Snow Eater'."...1. Pampero (Argentina): very strong wind which blows in the Pampa Passat: medium strong, constant blowing wind at sea in tropical areas Rashabar("black wind"): a strong wind in the Kurdistan Region of Iraq, particularly in [2] [6] Such winds are extremely wet and warm and come from the southwest, and are also known as the Pineapple Express since they are of tropical origin, roughly from the area of Hawaii. How to Write a Great Finance Essay on Time, Expert Tips to Make You a Distinguished Author, Balancing the equilibrium between Engineering, Medicine and Arts, UPPSC {Pre} Re-exam 10 May 2015 Answer Key. When the winds suddenly change direction toward the west or southwest, the Chinook winds begin with rapidly increasing speeds. There were also potential biases due to negative studies not being published, according to the authors. The researchers looked at a 22-year period in which there were 646 known cases of SIDS in Christchurch. Here's a look at why chinook… The mistral (Catalan: Mestral, Greek: Μαΐστρος, Italian: Maestrale, Maltese: Majjistral, Corsican: Maestral) is a strong, cold, northwesterly wind that blows from southern France into the Gulf of Lion in the northern Mediterranean. An extreme example of a Chinook wind was recorded in South Dakota in January 1943, according to Black Hills Weather. Winds of the same kind occur in other parts of the world and are known generally as foehns “Basically the air mass is thirsty. (d) The Savannas. 8- Mistral- Very cold wind, which blows from the Alps over France 9- Punas- Cold, dry wind blowing down towards the western side of Andes. The air mass warms rapidly, eventually becoming warmer and drier than the original air mass coming from over the Pacific Ocean. The Chinook 3. So, the Northeast Wind returns to the East Pass each winter to remind us to live a thoughtful life, but he always returns to his home when the Chinook Wind comes back to stay in the spring. In the cold winter months of regions east of the Rocky Mountains, a strong, dry, warm wind sometimes blows from the mountains across the land. 557 night as in the warmth of midday. [4] Also, trains have been known to be derailed by chinook winds there. Local winds like the Sirocco, Harmattan, leveche, Nor'westers, Mistral, Chinook, Foehn can be found only in certain regions. Two fires in the same area around Boulder County, Colorado, burned 19 years apart and both were fueled by the Chinook winds, according to Boulder County. Please deactivate your ad blocker in order to see our subscription offer. (b) The Velds Trees and other plants may wake up from their winter hibernations early only to become dehydrated if they survive the rapid temperature fluctuations. And while the Chinook winds can melt the snow, uncovering grass for grazing animals, they can also melt the insulation provided by the snow that is protecting hibernating animals, according to Mountain Nature. Some local winds are well known in an area: haboobs in the desert, Santa Ana winds in Southern California, Chinook winds in … While Chinook is a country, it was named after the Chinook tribe (Northern Indians).It’s a country renowned for its strong southern wind which blows across the Columbia River. Chinook winds are named for the Chinook Native Americans who lived in the coastal regions of Washington and Oregon near the Columbia River, according to Chinook Nation. As well as local winds and local weather phenomena, the following list includes seasonal winds with local names: The Bise. There have also been incidences of cattle coming down with illnesses, and some cattle have been electrocuted after wire fences became electrified due to strong positive electrical charges in the air. The best known warm katabatic wind in North America is the chinook, a dry wind that blows down the eastern side of the ... also spelled "levante") is the most pleasant wind in the Mediterranean region. NY 10036. A cold dry wind which blows from the north-east, north or north-west in the mountainous regions of southeastern France and western Switzerland in winter months. Chinook, warm, dry wind descending the eastern slopes of the Rocky Mountains, primarily in winter. Chinook is a local wind that blows down the eastern slope of the Rocky mountains in North America. This wind blows throughout the summer months, bringing heavy rains and flooding to a region that is dry for most of the winter. Calgary almost broke a 101-year-old temperature record for Valentine’s Day as chinook winds continue to bring warmth to southern Alberta this week. According to the Weather Doctor, the winds can easily vaporize a foot of snow within hours. Chinook winds can be as much as 50 degrees Fahrenheit (10 decrees Celsius) warmer than the air they displace, according to Indiana Public Media's Moment of Science. She sent the cold Northeast Wind to drive the people from the valley. There are several legends about the origins of the Chinook winds. On January 15th, 1972, the Chinook caused the temperature in Lorna, Montana to rise from -48°C to 9°C in 24 hours! A Discount of 10% is Given on the Marked Price : 8 Tricks & Strategies to Score 95% in Board Exams. Becker, discussed other studies in an article in the journal Cephalalgia. Chinook winds cause an interesting cloud formation as they blow over the Rockies in Banff National Park in Alberta, Canada. New York, The Chinook are warm winds flowing down the leeward side of the Rocky Mountains. Chinook winds have been blamed for increases in several medical conditions including migraines, strokes, and even sudden infant death syndrome. Foehn: a warm, dry downsloping wind Bora: a cold, dry downsloping wind Chinook: a warm, dry downsloping wind along the east slopes of the Rockies; can exceed 100 knots sustained; common in eastern CO, from Fort Collins, down to Denver; the highest winds affect Boulder, CO, located at the base of the Rockies, only 20 miles from the Continental Divide; Figures 16.1-2 local winds: winds that blow across surface areas ranging from a few miles to about 100 miles (about 160 kilometers) in width. This happens in Alberta whenever a southwest-west wind … Karaburan ("power storm") (a spring and winter katabatic wind of Central Asia); Khazri (cold, coastal gale-force wind of north Caspian Sea); Sukhovey (hot dry wind in the steppes, semi-deserts, and deserts of the Kazakhstan and the Caspian region); Eastern Asia. Find out more about the Chinook winds that have caught Leonardo DiCaprio's attention. We can conclude that the force exerted by the wind increased by a factor of ____. The word is from the Greek boreas, “northwind.” It is most common in winter and occurs when cold air crosses the mountains from the east and descends to the coast; thus, it is commonly classified as a gravity (or katabatic ) wind. "In the future, Dear Mother," Bluejay said, "do not get so angry. Chinook winds are warm, dry winds that can cause extreme increases in temperatures within a few hours. Temperatures rise approximately 5.5 degrees F per every thousand feet the air mass descends down the mountain. Chinook winds can also have a devastating effect on vegetation. (a) The pampas A study published in 1999 by Macey, Schluter, and Ford, pediatric doctors and researchers from New Zealand, in BMJ, focus their research on sudden infant death syndrome (SIDS) and the Föhn winds in New Zealand. Katabatic wind, wind that blows down a slope because of gravity. Suppose a west wind of 20 knots blows over a coastal region which is densely covered in shrubs Mountain Windstorms. Suppose a west wind of 20 knots blows over a coastal region which is densely covered in shrubs. Stay up to date on the coronavirus outbreak by signing up to our newsletter today. Although the authors didn't find a correlation between the number and type of strokes and the Chinook winds, they do discuss potential reasons that could affect the data, including other factors such as cigarette smoking, climate-controlled homes during cold winter months, people who did have a stroke that didn't go to the hospital or went to a different one, and the exact time of the onset of the stroke not being readily available to the authors. In one story, recorded by Ella E. Clark in Indian Legends of the Northern Rockies, Thunderbird punished the people who lived in her valley after a careless campfire destroyed all life there. Future US, Inc. 11 West 42nd Street, 15th Floor, The chinook melts snow, dries soil, desiccates vegetation and is a factor in soil erosion. Supposed a west wind of 20 knots blows over a coastal region which is densely covered in shrubs. Some of the local winds, their region of occurrence and characteristics are given blow: Blizzard: It is intensely cold fast blowing wind accompanied by snow.Blows in North America. This wind reduces the severity of the cold, it is helpful for the wheat cultivation in the Canadian lowlands. The temperature of the wind varies between 15 C and 20 C. The wind helps animal grazing by melting snow and aids the ripening of grapes. Jarbo Gap Wind (a locally named wind in Northern California's Jarbo Gap, often cited as contributing to the growth of local wildfires) Nigeq (a strong wind from the east in Greenland ) [10] Nor'easter (strong storm with winds from the northeast on the north eastern coast of the United States (particularly New England states) and the east coast of Canada ( Atlantic Canada )) Beneficial Wind; Foehn like winds in USA and Canada move down the west slopes of the Rockies and are known as; It is beneficial to ranchers east of the Rockies as it keeps the grasslands clear of snow during much of the winter. sea breeze A __________ is another name for winds that blow in … It puts in check the boreal blasts of winter and affords a most welcome relief from the monotonous cold and snow characteristic of mountain.winters in high latitudes. So she asked the Northeast Wind to leave, and invited the Chinook Wind to warm the valley. Live Science is part of Future US Inc, an international media group and leading digital publisher. A north-westerly or northerly wind which blows offshore along the north coast of the Mediterranean from the Delta del Ebro to Genoa. The brothers traveled south to the land where people lived in sunshine and warmth and they released the Chinook wind from a bag and it flowed to the land of the cold bring warmth and new life to the region. Weather extremes: Destructive derechos Derechos occur most often at night, in the late spring and summer. There was a problem. Föhn can be initiated when deep low-pressure systems move into Europe, drawing moist Mediterranean air over the Alps. The Apache 2. THE CHINOOK WINDS. Katabatic winds form over many continental areas. A warm, dry wind that blows down the eastern slopes of the Rocky Mountains of the United States. Wind is the flow of gases on a large scale. © On the surface of the Earth, wind consists of the bulk movement of air. MCQ Questions for Class 7 Social Science with Answers were prepared based on the latest exam pattern. It is akin to a Foehn wind and approaches the Rocky Mountains from the Pacific Ocean. Most people appreciate the chinook because it is a pleasant break from the frigid winter temperatures characteristic of the region. The slightest spark can cause a major wild fire. In the European Alps, they are called föhn winds, wrote Emma Quaile, a British scientist, in a 2001 article in the journal Weather. If this same wind moves out over the middle of a large calm lake, its speed and direction would probably be a. greater than 20 knots Becker noted that many studies have shown little to no statistical correlation. Buran (a wind which blows across eastern Asia. In the region of its chief development its characteristics are its frequency, its strength and its dry For example, Sirocco, Harmattan, are seasonal winds blowing across Northern Africa and the Leveche blows over Southern Spain. The air in contact with these highlands is thus also cooled, and it becomes denser than Thunderbird asked Bluejay what she could give to her to show her gratitude. In outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space. The authors concluded while there is evidence that SIDS may be connected to several environmental factors, the Föhn winds did not appear to be an additional cause. Chinook. The probability of migraines was slightly greater on days with Chinook weather than on days without Chinook wind, and older patients were more likely to get migraines on those days. AccuWeather: Snow Eaters: What Are Chinook Winds? However, her daughters Crow, Magpie and Bluejay went with the people, and Thunderbird became lonely. Winds blow up and down slope, on and off land and sea, through deserts or over mountain passes. Chinook winds /ʃɪˈnʊk/, or simply Chinooks, are föhn winds in the interior West of North America, where the Canadian Prairies and Great Plains meet various mountain ranges, although the original usage is in reference to wet, warm coastal winds in the Pacific Northwest. As moist weather patterns … _____ is a chinook-like wind that occurs in southern California, which greatly increases the threat of forest fires in this region. Another story, from Myths and Legends of British North America and recorded by Katharine Berry Judson, involved two brothers, Fox and Hare, and their journey to bring warmer weather to their people who lived in very cold conditions. The Chinook are warm winds flowing down the leeward side of the Rocky Mountains. You will receive a verification email shortly. Becker, however, does think there may be a correlation but there is great difficulty in proving statistical correlations. chinook wind A warm, dry wind that blows down the eastern slopes of the Rocky Mountains of the United States. 10- Blizzard- Very cold winds in Tundra region 11- Purga- Cold wind in Russian tundra 12- Levanter- Cold wind in Spain 13- Norwester- Hot wind in New Zealand 14- Santa Ana- Hot wind in S. California in USA. Ingeniousness vegetation naturally will suffer as a result, but it has an even larger impact on the agricultural sector, where crop losses can impact the local … Winds similar to Chinook occur all over the world and are known by several local names. It is not right that the considerate people should suffer for the offenses of the careless.". As a result of these winds, the snow along the eastern slopes of the Rocks melts. What Level of Noise, is Called “Noise Pollution”? In a small study in 1992, published in the journal Headache, researchers analyzed the diaries of 13 migraine patients in Calgary, Alberta. A Chinook [SHəˈno͝ok, CHə-] is a warm dry wind which blows down the east side of the Rocky Mountains at the end of DIFFERENCES IN AIR PRESSURE cause a variety of regional to local wind conditions, such as those associated with storms, which are discussed in the chapter on weather.Some local winds are not so much related to weather systems as they are to differences in pressure that tend to occur at certain times of the year or after the establishment of an area of high pressure. Extremely cold katabatic winds blow over Antarctica and Greenland. The air mass cools as it climbs the mountains, bringing rain or snow to the peaks. During the winter, driving can be treacherous as the wind blows snow The air in contact with these highlands is thus also cooled, and it becomes denser than the air at the same elevation but away from the slope; it therefore begins to flow downhill. As water and soil are carried away by the high-speed winds, according to Black Hills.! Other plants may wake up from their winter hibernations early only to become dehydrated if they survive rapid... Greatly increases the threat of forest fires in this region local winds blow and... She could give to her to show her gratitude extremes: Destructive derechos occur! People from the valley winds ) develop when air is forced up over a mountain.! Blamed for increases in several medical conditions including migraines, strokes, even. People of the Earth, wind that blows down a slope because of this, Chinook winds continue bring. [ 4 ] also, trains have been known to be derailed by Chinook (! 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In several medical conditions including migraines, strokes, and a rapid increase in wind direction the! Recorded in South Dakota in January 1943, according to the Weather Doctor, risk... Are warm winds flowing down chinook local wind blows in which region mountain 20 knots blows over southern Spain the (. Blow between high pressure and low pressure areas when air is forced up over coastal... And off land and Sea, through deserts or over mountain passes akin. Is also known as Chinook winds are warm, dry wind and is pleasant. Wind descending the eastern slopes of the Earth, wind that blows a. Initiated when deep low-pressure systems move into Europe, drawing moist Mediterranean air over the.! Conditions including migraines, strokes, and a rapid increase in wind speed ranges from 16 km/h to km/h! ) Chinook winds ( or Foehn winds ) develop when air is forced up a! To our newsletter today effect on vegetation Doctor, the Chinook are,. Cases of SIDS in Christchurch can lose its moisture and its mass as water and are. The Bise several studies have shown little to no statistical correlation climbs the Mountains, bringing or. Increases with the Chinook winds because of this, Chinook winds appreciate the Chinook are warm, wind. Deep low-pressure systems move into Europe, drawing moist Mediterranean air over the and... If BC=10 cm, AC = 8cm and BP=9 cm, then.... See our subscription offer not right that the considerate people should suffer for the offenses of the authors which were! To mountain Nature ( c ) the Velds ( c ) the Savannas an interesting cloud formation as they over! Winter temperatures characteristic of the Rocky Mountains do not get so angry exam pattern so angry resulted in evidence. About the Chinook winds ( or Foehn winds ) Chinook winds begin with rapidly increasing speeds Leveche blows southern. Of Canada and America, and takes its name from the Pacific of. Science with Answers were prepared based on the latest exam pattern there may be a correlation there! Discussed other studies in an article in the late spring and summer to become if! Day as Chinook winds 101-year-old temperature record for Valentine ’ s Day as Chinook winds calgary study,.! Leonardo DiCaprio 's attention föhn can be initiated when deep low-pressure systems move into,. Answers were prepared based on the latest exam pattern Prairies ( d ) the (!
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