11-12: In your own worlds, please describe a situation over the eastern slope of
ID: 109112 • Letter: 1
Question
11-12: In your own worlds, please describe a situation over the eastern slope of the Rockies that might be conducive for a snow storm. In this description include terms/places such as orographic lift, extratropical cyclone/ low pressure system, cyclonic wind flow, Rocky Mountains, and the Gulf of Mexico. Draw a diagram if you think this would help explain your answer!
4. In the radar image below, label the locations of lake effect snow. Note that there is more than 1 location where this is occurring! Radar image over the Northeast in January.Explanation / Answer
Q - 11-12: In your own worlds, please describe a situation over the eastern slope of the Rockies that might be conducive for a snow storm. In this description include terms/places such as orographic lift, extratropical cyclone/ low pressure system, cyclonic wind flow, Rocky Mountains, and the Gulf of Mexico. Draw a diagram if you think this would help explain your answer!
East of the Rockies, excluding nearby around the Great Lakes locally round the Great Lakes and Appalachian Mountains, snowfall upsurge from south to north. From the Rockies westward to the Pacific the amount of snowfall is Pacific, the amount of snowfall is related to advancement and mountains. All the mountain ranges are regions of substantial snowfall.
The term “upslope storm” is used to define a winter storm that happens along the eastern slopes of the Rocky Mountains and on befalls along the eastern slopes of the Rocky Mountains and on the Plains directly east of the mountains. These storms happen with low-level winds that have an easterly level winds that have an easterly constituent.
Upslope storms can harvest enormous amounts of snow. Upslope storms can yield enormous amounts of snow. Nearly 3 ft (~ 1 meter) of snow can fall during a solitary event in the foothills west of Denver. Upslope storms occur when comparatively moist, easterly winds blow westward across the plains and up the east slope of the Rockies. Two pressure patterns produce easterly winds:
(a) a high-pressure system situated north of the Colorado and
(b) a low pressure system situated south of Colorado.
For the high pressure system, cold and comparatively dry Canadian air produces light snow accretion. For the low-pressure system, warm and moist air from Gulf of Mexico harvests snow with higher water equivalent.
If we see an Alberta clipper is an area of low pressure that usually forms over Alberta, Canada, east of the Rocky Mountains. They develop east of the Rockies because air flowing eastward over the mountains generates favorable conditions. Once an Alberta Clipper forms it usually moves very quickly to the southeast across the USA's northern Plains and then to the east off the mid-Atlantic Coast.
Clippers usually reason only light precipitation with very few constructing major snowstorms. However, if conditions are favorable, some Alberta clippers can rapidly intensify off the East Coast once the storm taps the relatively warm moist air over the Atlantic Ocean. The storms that rapidly intensify sometimes spread heavy snow over New England and southeastern Canada. Generally, the main weather features associated with Alberta clippers are some light snow and a reinforcement of cold air over the USA.
(4)Lake effect snow, which is a type of snow fall, is shaped in the winter when cold winds transfer across long expanses of warmer lake water, gathering up water vapor which freezes and is dropped on the lee shores. This result is improved when the moving air mass is elevated by the orographic effect of higher advancements on the downwind shores. This uplifting can yield narrow, but very intense bands of precipitation, which deposit at a rate of many inches of snow per hour. The areas affected by lake effect snow are called snow belts. If the air temperature is not small sufficient to keep the precipitation frozen, it falls as lake effect rain. In order for lake effect rain or snow to form the temperature variance between the water temperature between the surface and 850 mb should be at minimum 13 degrees Celsius. Lake effect of extremely cold air over still warm water in early winter can produce thunder snow, snow showers accompanied by lightning and thunder. Weather is caused by large temperature differences between the land and water.
During the unstable season on the Great Lakes, the temperatures can change quickly over the land. Here is a summary of how that can happen:
Mid-August to March: The average temperature of the land is colder than the average temperature of water.
Mid-November to mid-January: This time of year sees the largest temperature differences between land and water.
Those temperature differences may typical:
Northern lakes: 30 degrees Fahrenheit (F) (-1 degrees Celsius).
Southern lakes: More than 15 degrees F (-9 degrees C).
Arctic air, brought down across the lakes by northerly winds can energy temperature variances as wide as 50 degrees F (10 degrees C) in the north and 40 degrees F (4 degrees C) in the south. These temperature alterations between the land and water are the source of what we call weather. Arctic air, necessary for lake effect snow, usually comes after a deep low-pressure center has delivered through or near the Great Lakes region. As the low pressure center transfers through, it opens the way for cold air to current southward. Cold air usually transfers through in the form of a high-pressure area behind a cold front. Snowfall regularly occurs in combination with a rising barometer.
(5)Aral Sea. [One of the most ancient lakes on earth, the Aral Sea Which is bounded by three deserts and shared by the five newly independent republics of Central Asia, bad been USSR's Second largest inland waterbody and the world's fourth largest inland sea. Fed mainly by two rivers - Amu Darya and Syr Darya A which collect the runoffs and glacier melts from the Pamir Two Shan Mountains of Tajikistan and Kyrgyzstan, it fails to show late snow effect.]
(10) Utah’s climate is determined by its distance from the equator; its elevation above sea level; the location of the State with respect to the average storm paths over the Intermountain Region; and its distance from the principal moisture sources of the area, namely, the Pacific Ocean and the Gulf of Mexico. Also, the mountain ranges over the western United States, particularly the Sierra Nevada and Cascade Ranges and the Rocky Mountains, have a marked influence on the climate of the State. Pacific storms, before reaching Utah, must first cross the Sierras or Cascades. As the moist air is forced to rise over these high mountains, a large portion of the original moisture falls as precipitation. Thus, the prevailing westerly air currents reaching Utah are comparatively dry, resulting in light precipitation over most of the State. Precipitation varies greatly, from an average of less than five inches annually over the Great Salt Lake Desert (west of Great Salt Lake), to more than 40 inches in some parts of the Wasatch Mountains. The average annual precipitation in the leading agricultural areas is between 10 to 15 inches, necessitating irrigation for the economic production of most crops. However, the mountains, where winter snows form the chief reservoirs of moisture, are conveniently adjacent to practically all farming areas, and there is usually sufficient water for most land under irrigation. Northwestern Utah, over and along the mountains, receives appreciably more precipitation in a year than is received at similar elevations over the rest of the State, primarily due to terrain and the direction of normal storm tracks. The bulk of the moisture falling over that area can be attributed to the movement of Pacific storms through the region during the winter and spring months.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.