117 Steam fogs and frontal fogs are both types of _____ fogs. Clouds also form when air is forced upward at areas of low pressure. Lenticular clouds indicate great instability in that layer of the atmosphere, and form in areas of mountain waves. Answer: Stable air flowing over a mountain. Lenticular clouds indicate waves in the air flow caused by strong winds blowing across the range. The rising air expands and cools until it reaches it's dewpoint temperature and then, if there are tiny specks of dust in the air to trigger the condensation, droplets will form and you'l have a cloud there. . Lenticular cloud formation. When arcus clouds move overhead, it can look like they're literally rolling over the ground below. In the Boulder area, the obstacle is the Front Range of the Rocky Mountains. B. Hood . Match the cloud type with the mechanisms or condition that most likely formed it. Lenticular clouds ( Latin: Lenticularis lentil-shaped, from lenticula lentil) are stationary clouds that form mostly in the troposphere, typically in parallel alignment to the wind direction. . Lenticular- Lenticular clouds are clouds that form above mountains that have a lens and flying saucer shape. This leads to a stationary cloud even though the air is steadily flowing. An early sign that the conditions might be right to form afternoon thunderstorms! The funnel cloud is the visible portion of a tornado produced from clouds. If the temperature at the crest of the wave drops below the local dew point, moisture in the air may condense to f. This is less likely compared to the reason most people buy into, that it was caused by over-pollution put into the air by the Siberian neighboring nation of Kazakhstan. All types of clouds are formed by these processes, especially altocumulus, altostratus, cirrocumulus, stratocumulus, or stratus clouds. Where are lenticular clouds most likely to form? Standing lenticular clouds form in the crests of the mountain wave where the rising updraft of the wave has cooled and moisture has condensed. Air moves . Meteorologist Tim Ballisty tweeted a satellite image of the clouds over Dublin: FALSE. Lenticular and lee wave clouds form downwind of an obstacle in the path of a strong air current. They usually form when a layer of air near the surface encounters a topographic barrier, gets pushed upward, and flows over it as a series of atmospheric gravity waves. In Homeric Greek . A type of arcus cloud, roll clouds are generally associated with the gust front of a thunderstorm. This snow was said to be oily to the touch and contained up to 4 times the normal level of iron. . The rising air expands and cools until it reaches it's dewpoint temperature and then, if there are tiny specks of dust in the air to trigger the condensation, droplets will form and you'l have a cloud there. condensation nuclei. Answer (1 of 2): When moist, stable air flows over a larger eddie, such as those caused by mountains, a series of large-scale standing waves form on the leeward side of the mountain. As damp air flows over mountain peaks, the waves of air carve out a pocket on the downwind side, and if the front side of that downwind . . Mammatus clouds most frequently form on the underside of ____ clouds. A)to the lee of mountains. In a deep conditionally unstable or absolutely unstable environment, one may expect clouds to develop with More rarely, they could be formed in plains when strong winds set up a cold front that acts as a form of barrier against moisture-laden air. Since air cools as it rises and warms as it falls, lenticular clouds are most likely to form at the peak of a standing wave, where moisture condenses in the cooled air. 6.4 Roll Clouds. A)to the lee of mountains B)along coastlines C)over oceans D)in desert regions. POLAR LIGHT (AURORA) They form as air is lifted to saturation over the top of mountains. Stratus clouds are sheetlike clouds that are low in the sky (below 6,500 feet) and look like fog that hugs the horizon. Altocumulus Lenticularis All types of clouds are formed by these processes, especially altocumulus, altostratus, cirrocumulus, stratocumulus, or stratus clouds. These clouds indicate moisture and temperatures will likely warm, as a warm front is often approaching. This cloud resembles a lens and is typically positioned over a high hill or mountain. Lenticular Cloud (as defined by NOAA) A very smooth, round or oval, lens-shaped cloud that is often seen, singly or stacked in groups, near or in the lee of a mountain ridge. Wind blows most types of clouds across the sky, but lenticular clouds seem to stay in one place. … Get solutions Get solutions Get solutions done loading Looking for the textbook? Question. Lenticular Clouds: Calm in Appearance, Dangerous in Reality. lenticular clouds. Lenticular clouds indicate . Moisture is forced out of the air into the form of a cloud as the air rises over the land feature and then returns back to the vapor form as the air descends down the other side. Click to see full answer. Lenticular clouds form at the crest of the waves, where the air is coolest and water vapor is most likely . environment, one may expect clouds to develop, but their vertical growth will be limited, and may observe: cumulus humilis (shallow cumulus) stratocumulus In an absolutely stable environment, no clouds will likely form. However, the most dramatic clouds are generated by the largest ranges, such as the Himalayas, Andes, and Rocky Mountains. Answer (1 of 2): Clouds form when humid air rises. Produced when a rotating column of air condenses, funnel clouds are the visible part of tornadoes that extend downward from the parent thunderstorm cloud. The clouds dissipate in the downdrafts of the wave where the air has descended and warmed to the point where the moisture evaporates . Mt. C - a lenticular cloud C - a lenticular cloud 3418. The lens-shaped lenticular cloud appears over the ridge and to the lee of mountain ranges. Standing lenticular clouds. You're most likely to spot a lenticular cloud near hills or mountains. These clouds appear most often in formations of orographic origin, the result of lee waves, in which case they remain nearly stationary with respect to the terrain (standing cloud), but they also occur in regions without marked orography. Similar to how rainbows and moonbows form, rainbow clouds form when sun light passes small water droplets or small ice crystals in the clouds, refracting the light. Weather fronts, where two large masses of air collide at . Answer (1 of 2): Clouds form when humid air rises. Lenticular clouds tend to form somewhere around 6500 feet to 16,500 feet. A halo around the Sun or the Moon indicates the cloud _____ is present. A species of cloud whose elements have the form of more or less isolated, generally smooth lenses or almonds. They are often comparable in appearance to a lens or saucer. This is one reason visualization is so . It takes just the right mixture of moisture, temperature, and wind to make it possible for lenticular clouds to form. Visibility is decreased when stratus clouds are present and fog is likely to form. steam fog is more likely to form during the ____ and advection fog in early ____ In the Boulder area, the obstacle is the Front Range of the Rocky Mountains. These clouds are a good indication of the presence of mountain waves but, if the air is dry, there may not be any cloud to see. a. cumuloaltus b. stratus . cumulonimbus. d. nimbostratus . A long snake-like lenticular cloud above Lake Tahoe at sunset on May 11, 2018. Unlike arcus clouds, however, roll clouds have a very long, tube-like shape. 07. Melina Grasso Show More Show Less 2 of 21. Unlike arcus clouds, however, roll clouds have a very long, tube-like shape. Standing lenticular clouds are lens shaped clouds, hence their name. Earth Observatory said, "Lenticular clouds are a type of wave cloud. They are associated with waves in the atmosphere that form when moist air flow is forced up, over and partway down a mountaintop. Lenticular. Weather fronts, where two large masses of air collide at . provides equal amounts of precipitation on both sides of a mountain range. As air flows around large surface features, wind velocity tends to increase, and in turn pressure and temperature decrease, causing a cloud to form. Basically, what you end up with is a rainbow within a cloud. Lenticular clouds (Altocumulus lenticularis, meaning "shaped like a lentil" in Latin) mostly develop among the crests and valleys of mountainous terrain. Where are lenticular clouds most likely to form? Answer: Wind Speed Changing with height in conditionally unstable air. Cloud formations directly downwind or above large terrain features will be turbulent. Smooth, lens-shaped . An adiabatic chart is a useful tool for determining: a station model. Different cloud phenomenon (cloud formations) 1. Lenticular Clouds (lens shaped clouds) can form in the crest of the mountain waves if the air is moist. These clouds form in pockets of air trapped in the dips and valleys of mountainous terrain. . general-geography; . This occurs when stable, moist air flows over a mountain, creating a series of oscillating waves. It makes sense that it would be a "rough ride". rarely leads to clouds forming above the top of the hill or mountain. In the Boulder, Colorado area, the obstacle is the Front Range of the Rocky Mountains, seen at the bottom of the picture. can create cumulus clouds. 12) (Refer to Figure 76) What is the minimum altitude/elevation of the area depicted by the blue line labeled V71? So, you need rising air and some sort . . Good examples occur when moist winds blow in off the Pacific Ocean and encounter the Sierra Nevada in California. A. Cloud streets. Winds meet at the center of the low pressure system and have nowhere to go but up. Pilots tend to avoid flying near lenticular clouds because of the turbulence that is likely closer to the ground. The lenticular cloud is one of the more unusual cloud types and is more common to those living out west, especially in the Rocky Mountains. Lenticular Clouds "Lenticular clouds form due to the wind blowing across the top of a mountain at a pretty good speed. One of the most feared and easily recognized storm clouds is the funnel cloud. Lenticular Clouds over Plymouth, NH Plymouth State University Meteorology Program Cloud Boutique The Plymouth State Meteorology Program has developed this web page to provide explanations of and access to detailed pictures of some basic cloud forms. But remember, not until the funnel reaches the ground or "touches down" is it called a tornado. crates clouds that usually have the same height, regardless of time or place. A lenticular cloud is a lens-shaped cloud that normally develops on the downwind side of a mountain or mountain range. Lenticular and lee wave clouds form downwind of an obstacle in the path of a strong air current. B. C. Following frontal passage when stratocumulus clouds form indicating mechanical mixing. Our final two cloud types will not help you predict the coming weather, but they do give a glimpse of the extraordinarily complicated motions of the atmosphere. (b) On which side of a mountain (windward or leeward) would lenticular clouds most likely form? When arcus clouds move overhead, it can look like they're literally rolling over the ground below. It is worth noting that the word is also probably cognate with the Mycenean Greek word (u-ru-pi-ja-jo) which is, most likely, a term used to describe people, or possibly an ethnic group. The cloud droplets in a cloud are formed by water vapor molecules and: cirrostratus. Winds meet at the center of the low pressure system and have nowhere to go but up. Creast of standing mountain waves may be marked by stationary, lens-shaped clouds known as . This interception of high-level moisture forms lenticular clouds, and as a result, they are a good warning sign of an approaching weather front and sometimes a big snowstorm. As the wind blows against the mountains, it is forced upward and moisture condenses, forming a cloud that . 5) Lenticular. Cirrus Lenticular Clouds. The cloud images show detailed structure and features.All of these pictures were taken in the local area around Plymouth, New Hampshire and most . Cloud Formation. Lenticular Clouds are stationary and form in the Troposphere, perpendicular . Lenticular clouds are shaped like lenses or almonds or.flying saucers! This is why the clouds are called "standing". There are three types of Lenticular cloud, the lowest is Stratocumulus Standing Lenticularis found at 8000 feet, the most common seen is the Altocumulus Standing Lenticularis, found between 8000 to 20,000 feet high. Which cloud type below would most likely form in an unstable atmosphere a. cumulonimbus b. stratus c. cirrostratus . Thus, a wave cloud, or a series of lenticular clouds, is capable of forming. Which cloud type is most likely to produce a brief yet intense period of precipitation? Rainbow clouds tends to happen with altocumulus, cirrocumulus, lenticular and cirrus clouds. Altocumulus Lenticularis Clouds can form if stable, moist air collides with a large stationary object, such as a building or a mountain. A long snake-like lenticular cloud above Lake Tahoe at sunset on May 11, 2018. According to meteorologists, lenticular clouds are formed when moisture driven by strong winds encounters a topographic barrier, such as a mountain, that forces it to condense into clouds. Roll Clouds can also occur in the rotors below the waves if the air is moist. in Environmental & Atmospheric Sciences. nacreous clouds. (a) Why are lenticular clouds also called standing wave clouds (b) On which side of a mountain (windward or leeward) would lenticular clouds most likely form? 1 She'll be comin' round the mountain AlterYourReality /iStock. Lenticular Clouds Page 001. T/F: Lenticular clouds form most frequently on the windward sides of mountains. cumulus. They may be triggered off by hills only a few hundred metres high, and may extend downwind for over 100 KM The cloud elements form at the windward edge of . Clouds also form when air is forced upward at areas of low pressure. Answer: Forced ascent of stable air along a warm front. These rare cloud formations are natural phenomena seen in the sky. They need a certain air current to form, and just the right. when in fact the strongest wave lift and sink occurs at a lower altitude where there isn't enough moisture to form the lenticular clouds. 5) Lenticular. Clouds are one of the most incredible natural phenomena. When stable air crosses a mountain barrier where it tends to flow in layers forming lenticular clouds. So, you need rising air and some sort . Since air cools as it rises and warms as it falls, lenticular clouds are most likely to form at the peak of a standing wave, where moisture condenses in the cooled air. A - A warm, moist air mass on the windward side of mountains. These mighty masses of liquid droplets and/or frozen crystals have been fascinating people from time immemorial. The classic examples of these formations include Lenticular clouds and Rotor clouds (pictured below). These formations are frequently caused by wave motions in the atmosphere, and are frequently seen in mountains or hilly areas. Lenticular clouds. The clouds dissipate in the downdrafts of the wave where the air has descended and warmed to the point where the moisture evaporates and is no longer visible. The most distinctive characteristic of the mountain wave is the lenticular cloud. . a. lenticular b. banner c. cap d. pileus e. mammatus. B - An air mass moving inland from the coast in winter. Lenticular, or lee wave, clouds form downwind of an obstacle in the path of a strong air current. A funnel cloud is not a tornado if the circulation is not in contact with the ground. Nacreous clouds that form in the lower stratosphere sometimes have lenticular shapes. Even in the sky, we can see rare cloud formations and these sights keep us mesmerized, wondering how beautiful nature can be. In areas of low-level temperature inversion, frontal zones, and clear air turbulence. A rare or important fact or event or an extraordinary thing is known as a phenomenon. Wiki User ∙ 2017-02-07 02:06:38 They are most likely to form when the direction they are travelling is at a right angle in comparison to the direction of the wind. Nimbostratus. Like ocean waves, these waves of air bouncing over the mountains are anything but stable. In which situation is advection fog most likely to form? Our final two cloud types will not help you predict the coming weather, but they do give a glimpse of the extraordinarily complicated motions of the atmosphere. Smooth, lens-shaped . This is a "signpost in the sky" indicating that mountain wave activity is present. A lenticular cloud is a good "forecast indicator" as tall mountains accentuate incoming high-level moisture well ahead of an approaching front. A type of arcus cloud, roll clouds are generally associated with the gust front of a thunderstorm. in Environmental & Atmospheric Sciences. Lenticular clouds occur in most parts of the world, and may form over quite small mountains. Clouds which have extensive vertical dimensions are often classified as: Lenticular clouds form when air flows over a topographical feature such as a mountain. Here's a list of some of the most common cloud types you might spot in the sky: High Clouds (16,500-45,000 feet) . 6.4 Roll Clouds. You would expect vertical airflow in a cyclone to result in, A)divergence at the surface B)no cloud development C)divergence aloft C. a light breeze blowing colder air out to sea . Solutions for Chapter 6 Problem 18QR: (a) Why are lenticular clouds also called standing wave clouds? You would most likely expect a rainshadow on the: east side of the Cascade Mountains in the . Standing lenticular clouds form in the crests of the mountain wave where the rising updraft of the wave has cooled and moisture has condensed. castellanus clouds. Lenticular. The clouds form in the rising current on the upwind side of the wave crest and dissipate in the downward flow on the other side. contrails. Advection fog is most likely to form in coastal areas, with warmer air moving over the cold ground causing fog to form. 81 T/F: Fog is simply a cloud with a base at or near the ground. mammatus clouds. They are often called "wave clouds". ".