Pilots notice that a heavily loaded airplane rides smoother in turbulent air. Lenticular clouds (Altocumulus lenticularis) are stationary lens-shaped clouds that form at high altitudes, normally aligned perpendicular to the wind direction. There can be strong downward gusts, called Rotors. Roll Clouds can also occur in the rotors below the waves if the air is moist. Pilots flying aircrafts generally tend to avoid flying near lenticular clouds as this cloud type can cause severe turbulence. Stratocumulus clouds. Beautiful colors in lenticular clouds are seen at sunrise and sunset. A lenticular cloud is a lens-shaped cloud that normally develops on the downwind side of a mountain or mountain range. A few elements need to be in place to form the ideal conditions for lenticular clouds to occur. Winds flowing through the narrow restriction of a mountain pass tend to increase in velocity. Most UFO authorities agree that lenticular clouds do sometimes cause UFO reports. Also see: Mountain Flying Part 2 In the evening light, these special clouds can trick people that they have seen a UFO. Top comment on the post you crossposted: u/bobzilla05 "This image is of the clouds over Tunisia, roughly 2014. Spinning formation of ice, clouds, and low-lying fog off eastern coast of Greenland. Lenticular clouds sometimes form at the crests of these waves. However, there is a possibility of such waves to exist beyond the clouds and may be present even when there are no clouds. 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. The smoothness is part of what defines lenticular clouds. Power pilots tend to avoid flying near lenticular clouds because of the turbulence of the rotor systems that accompany them, but sailplane pilots actively seek them out. Mountains will disrupt the airflow, which creates turbulence and causes air to rise and fall in a wave-like pattern on the leeward side of the mountain. Lenticular Cloud Formation: “Where stable moist air flows over a mountain or a range of mountains, a series of large-scale standing waves may form on the downwind side. Lenticular Clouds. When are they formed? Air moves up and over a mountain, with the lenticular cloud forming just past the mountaintop. And when the air lifts, it condenses into a cloud, … For example, a nimbostratus cloud is a stratus cloud that will cause rain or snow. These clouds are formed when winds hit a mountain which causes the clouds to form a wave-like structure. Strato-cumulus clouds form in altitudes below 6,000 feet. They are very odd looking, quite intriguing and usually form in medium levels as cumuliform cloud. Lenticular Clouds. The wave systems cause large vertical air movement, enough that water vapor may condense to produce precipitation. 10:04. ... Rare Heat Burst Causes Damage 01:04. Bing images, High lenticular clouds Google images, Extremely high cirrus clouds As stable air is pushed upward, the air is cooled to the dew point (lifting condensation level) and creates precipitation on the western slopes, this can also account for high cirrus clouds and lenticular cloud formations on the eastern side of the Urals. Downwind of the mountain, the air eventually sinks lower in the atmosphere, drying out and eroding any visible cloud. Lenticular Clouds Lenticular clouds form at high altitudes. Stratus forms by gently rising air, … Circumhorizontal arcs should not be confused with Iridescent clouds, which can produce a similar effect. Cirrus Kelvin-Helmholtz If the temperature at the crest of the wave drops to the dew point, moisture in the air may condense to form lenticular clouds.As the moist air moves back down into the trough of the wave, the cloud may evaporate back … Lenticular clouds are mostly found in the lee of hills and mountains. Fujiyoshida is a town located in the northern area of Mt. In this First Warning Weather University Lesson, Chief Meteorologist David Yeomans explains how clouds form and takes a … Although a lenticular cloud may form without the obstruction of … Lenticular AC are sometimes called "flying saucer" clouds, and are formed by air moving over hills or mountains. Likewise, what causes lenticular clouds? 2:42. Stratus cloud deck. Fuji and considered as one of the best places to admire the beauty of the mountain. 1 / 27. The tiny ice and water droplet sizes cause sunlight to be diffracted— it is obstructed by the droplets, is bent, and spreads out into its spectral colors. Cicero Ashby. When sufficient moisture is present above moun-tain-top level, lenticular clouds develop. They are similar to roll clouds. The name comes from the Latin word for "lens-shaped." occurs when turbulence cause air to mix; can suppress the growth of clouds by introducing unsaturated air. Thermal (Convective) Turbulence. Lenticular clouds occur mostly in mountainous or hilly areas where stable, moist air passes over elevated ground. Look for unique, UFO-shaped clouds that are especially striking right before sunset. Lenticular clouds are usually a sign of good weather as they are not associated with storms or strong precipitation. Lenticular clouds are constant streams of condensing and evaporating wind currents. Dec 20, 2016 #3 Looks lenticular to me. The process that goes into lenticular clouds is pretty simple actually. (Nat Geo News) Use our resources to learn more about clouds. Lenticular Cloud Sparks Curiosity. The Chembow: Ending California's engineered drought with orgone energy! Weather prediction: An early sign that the conditions might be right to form afternoon thunderstorms! Lenticular clouds are a bundle of movement, yet they look stationary. Technically known as altocumulus standing lenticularis, ... they were undoubtedly the cause of many early UFO reports when aircraft were less common and, as such, more “unusual”. They have a saucer like appearance. Staff member. The airplane may momentarily be out of control. Below photo shows a low layer of strato-cumulus clouds spreading the remains of larger cumulus clouds. These clouds are also an indication of moderate to severe turbulence. Under certain conditions, long strings of lenticular clouds can form, creating a formation known as a wave cloud. Lenticular, lens-shaped clouds tend to develop on the downwind side of mountains or mountain ranges. As air flows around large surface features, wind velocity tends to increase, and in turn pressure and temperature decrease, causing a cloud to form. Rain – Paragliding in the rain is extremely dangerous. However, these waves can be present beyond the clouds, and may exist even when no clouds are formed. The wave systems cause large vertical air movement, enough that water vapor may condense to produce precipitation.” In some instances lenticular clouds can form over flat terrain because of shear winds created by a front, but it’s less common. Lenticular Clouds Over Washington Explanation: Are those UFOs near that mountain? Lenticular Clouds are shaped like a UFO, some people compare them to the shape of a saucer. 8. These include both natural features of the Earth, such as mountains or hills, and artificial structures, such as buildings and other structures. Waves in the air that would normally be seen horizontally can then … Power pilots tend to avoid flying near lenticular clouds because of the turbulence of the rotor systems that accompany them, but sailplane pilots actively seek them out. Where stable moist air flows over a mountain or a range of mountains, a series of large-scale standing waves may form on the downwind side. A roll cloud is a low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front, or sometimes a cold front. Most UFO authorities agree that lenticular clouds do sometimes cause UFO reports. Under certain conditions, long strings of lenticular clouds can form near the crest of each successive wave, creating a formation known as a ‘wave cloud.’ The wave systems cause large vertical air movements and so enough water vapor may condense to produce precipitation. The types of clouds that form from encounters with mountains are stratus clouds and lenticular clouds. ... Altocumulus Standing Lenticular (ACSL) - Rotor clouds (often associated with the most intense turbulence) 2. Lenticular clouds are more natural to the PNW than other portions of the United States because of the mountains. Stratus is a low continuous cloud sheet covering the sky. 'Mystery Lights' Over San Diego Cause Social Media Freak-Out ... UFOs Or Lenticular Clouds? ... little thought disruptions, deconcentration, faster time running (it`s quite good cause time goes faster in work), friends started to contact me a bit more often. However, these waves can be present beyond the clouds, and may exist even when no clouds are formed. Clouds are beautiful, hypnotic, fierce and always interesting to look at. Lenticular clouds can be separated into altocumulus standing lenticularis, stratocumulus standing lenticular, and cirrocumulus standing lenticular. But since lenticular formations are relatively rare, these mistaken reports must also be pretty rare. However, these waves can be present beyond the clouds, and may exist even when no clouds are formed. Lenticular clouds form as strong winds blow across complex terrain, causing water… Flight pilots try to avoid flying in the areas near lenticular clouds at all costs. The unusual shapes of the lenticular clouds have caused many legends to arise, including stories of UFOs. Lenticular clouds develop when wind is forced up and over a topo-graphic barrier, such as a mountain, that is oriented perpendicular to the wind direction. If Cirrus and nacreous clouds coexist after sunset, the high altitude of the nacreous clouds causes them to show bright colours after the Cirrus has already turned grey. UFO News: Lenticular Clouds Cause UFO Scare Over Cape Town South Africa. This leads to the creation of the so-called wave clouds. But since lenticular formations are relatively rare, these mistaken reports must also be pretty rare. -UFO-Never mind. That’s because the flow of moist air up one side of the mountain replenishes the cloud on … Lenticular clouds look like flying saucers! Orographic clouds can also cause rain. As air travels along the surface of the Earth, obstructions are often encountered. Lenticular clouds are a visible sign of mountain waves in the air. The non-laminar cumulus clouds can be seen above the lenticular clouds. The refraction of light by the ice crystals in the Cirrostratus clouds cause a … Air from the ground blows into a mountain and rises up the face. Under certain conditions, long strings of lenticular clouds can form, creating a formation known as a wave cloud. Lenticular Clouds and Foehn Winds – occurs when air goes up a hill and drops down the other side, heating it. Lenticular clouds (Altocumulus lenticularis, meaning “shaped like a lentil” in Latin) mostly develop among the crests and valleys of mountainous terrain. If the temperature at the crest of the wave equals the dew point temperature, condensation occurs in … If the cool-down is significantly large, the air parcel can become chilled to saturation, forming a cloud. Polar stratospheric clouds (PSCs) are clouds in the winter polar stratosphere at altitudes of 15,000–25,000 m (49,000–82,000 ft). Flowing air is pushed up even above the obstruction so that lenticular clouds may form in the rising part of the wind. If there is enough moisture in the air, the rising motion of the wave will cause water vapour to condense, forming the unique appearance of lenticular clouds.” 5. Lenticular Clouds. In some cases, thermal effects cause the same ef fect as topography, i.e., the flow of air over a relatively shallow, cool air mass may cause lenticular clouds at … Lenticular clouds are rare lens-shaped clouds that form on the downside of a mountain or mountain range, according to the Weather Underground. For them to form, stable, moist air must flow over the mountain or mountain range to create a series of oscillating waves. However, the number of clouds seen and the well-defined shapes caused many to fear they were weather-control experiments or a warning of possible UFO activity. Lenticular clouds have been assumed to be confused for UFOs; as many of these clouds have the appearance of a “flying saucer”, with a characteristic “lens” or smooth, “saucer-like” form. Shelf clouds are what you see when a strong thunderstorm is rolling in and can even cause damage. In meteorology , a cloud is an aerosol consisting of a visible mass of minute liquid droplets , frozen crystals , or other particles suspended in the atmosphere of a planetary body or similar space. The amazing sky phenomenon changed shapes, colors and baffled skywatchers on December 10, 2020 as the sun was setting. ... Altocumulus Standing Lenticular (ACSL) - Rotor clouds (often associated with the most intense turbulence) 2. On the ground, they can result in very strong gusty winds in one place, with still air only a few hundred metres away. Some say they resembled a hat or a plate.The same shape of clouds appeared after … Lenticular clouds formed over the hills of eastern Massachusetts one cold and windy day. Fuji, Japan 1. This cloudiness is why lenticular sclerosis may sometimes be mistaken for cataracts. Local knowledge of the conditions which tend to cause the formation of mountain waves enables forecasting of potential wave propagation. As the air hits the mountains, it creates condensation that causes … Mammatus clouds near Douglas, Oklahoma. 'Mystery Lights' Over San Diego Cause Social Media Freak-Out ... UFOs Or Lenticular Clouds? Turbulance within a cumulonimbus cloud will cause mammatus clouds to form. The rapid lifting of humid air causes the cloud base to form at a lower elevation. Rainier in Washington state is known for being a frequent canvas for lenticular clouds to dance around and put on … Note in the video how the cloud forms as air blows up the mountainside and cools to the point of net condensation. Roll Clouds can also occur in the rotors below the waves if the air is moist. to clouds of this origin cannot be rigid because the clouds often result from a combination of different forces. similar to lenticular but are anchored to individual mountain peaks. As mentioned in the description, lenticular clouds form at a high altitude in the troposphere. Roll clouds. My knowledge of lenticular clouds was limited, I don't think I have ever seen one in the sky but I have seen many photos of lenticulars, usually in UFO books. A roll cloud is a low, horizontal, tube-shaped, and relatively rare type of arcus cloud. This usually happens at around 15,000 feet." ... way that mountains cause cloud formation is when air rises because the mountain is warmer than the surrounding air and causes the air to rise. Lenticular NPS Stationary, lens or saucer shaped clouds that form at high altitudes. Lenticular clouds, technically known as altocumulus standing lenticularis, are stationary lens-shaped clouds that form at high altitudes, normally aligned at right-angles to the wind direction. Lenticular clouds appear stationary, but have constant wind moving going through the formation These saucer-like clouds cause severe turbulence for … Stratus clouds can cause light drizzle or little snowfall. They can be spotted over Greenland, over Antarctica waters of (the Kerguelen Island area), over the Andes, on the northern Seas (Aleutian Islands), etc. They form as air is lifted to saturation over the top of mountains. Rain or light snow above the atmosphere would have added the rainbow reflections. Lenticular clouds sometimes form at the crests of these waves. fast moving air is forced up and over a topographic barrier that is oriented more or less perpendicular to the direction from which the upper-level wind is blowing.
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