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Topic: Lenticular cloud

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	Plymouth State Meteorology Program Cloud Boutique
		In appearance, clouds may be thick or thin, have well defined edges or be very diffuse, appear hairlike, cellular, towering, or in sheets, and be associated with fair weather or precipitation.
		Nimbostratus are often included in many texts as low clouds, but here they are considered multi-layer clouds because their vertical extent often goes well into the middle cloud region and these clouds often have even taller cumulonimbus clouds embedded within them.
		Cap clouds form when air containing water vapor is uplifted on the windward slide of the slope and reaches saturation producing liquid water cloud droplets and a cloud which can "cap" the summit.
	vortex.plymouth.edu /clouds.html (1686 words)

	Was the big bang necessary? Is it time for a new paradigm for how the Universe began?
		In fact, bands of lenticular clouds in the lee of a mountain range are clear evidence that standing waves have formed in the air stream.
		Lenticular clouds are an everyday example of a process that looks more like a solid than a process.
		Lenticular clouds are special because, although they are formed by the same process, they stay in the same place, often for several hours at a time, and can look quite solid.
	www.no-big-bang.com /process/lenticularcloud.html (666 words)

	Clouds Over Mount Shasta
		Clouds are the visible expression of the process known as condensation.
		Altocumulus clouds are very similar to cirrocumulus clouds and they, too, can produce "mackerel skies." Generally the convection cells of altocumulus are a little larger than cirrocumulus and the clouds are frequently said to resemble flocks of sheep.
		Altostratus clouds are layered, mid-level clouds that are typically gray because the water droplets are relatively large.
	www.siskiyous.edu /shasta/env/clouds (1631 words)

	Space Ship Clouds
		That is completely appropriate, as this clouds are produced by the rapid movement of air in the upper atmosphere, as occurs with the "jet stream".
		The flight conditions associated with such clouds are not pleasant, as the air will be extremely turbulent and light aircraft, if they must fly in such conditions, are best to maintain minimum altitude against the wind and even flying with the wind, they should keep their speed down and not exceed 5,000 agl.
		The lenticular clouds you will see in Saskatchewan will be usually far more simple and basic as the clouds are flattened out in their journey from the mountains to over head in Saskatchewan.
	www.ftlcomm.com /ensign/weatherPhenomena/lenticular/lenticular.html (997 words)

	Lenticular Cloud over Warrren Wilson College (Site not responding. Last check: 2007-10-09)
		The small dark clouds in the foreground were moving fairly quickly from the left – a strong northwest wind.
		The big lenticular cloud in the background, still illuminated by the sunlight, is rather stationary, although the winds in the big cloud are perhaps much stronger than at lower elevations.
		Lenticular clouds tend to stay in one place, but the wind rushes through them with considerable speed.
	www.warren-wilson.edu /~physics/Photo_Sky_optical/LenticularCloud/LenticularCloud.html (212 words)

	Mountain Wave 2
		For example, high altitude lenticulars may indicate there is sufficient moisture at that altitude to form them, 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.
		The mother-of-pearl or nacreous cloud is a pancake-shaped cloud that is extremely thin and visible for only a short time after sunset or before sunrise when the sky is dark.
		The lenticular cloud appears to be stationary although the wind may be blowing through the wave at 50 knots or more.
	www.mountainflying.com /mountain_wave2.htm (921 words)

	Iridescent Clouds (Site not responding. Last check: 2007-10-09)
		Lenticular clouds are mostly found in the lee of hills and mountains.
		Lenticular clouds are thus very dynamic objects marking the crests of atmospheric waves and the boundaries of droplet condensation and evaporation.
		Nacreous clouds made of ice crystals and much higher in the stratosphere are also wave clouds.
	www.sundog.clara.co.uk /droplets/iridim4.htm (206 words)

	Clouds
		Clouds are a collection of very small drops of water or tiny pieces of ice that are held in the air.
		Clouds are formed of water that has evaporated from rivers, lakes, oceans, or moist soil and plants.
		Clouds change as parts evaporate in dryer air or they are moved and reshaped by wind and air currents.
	www.42explore.com /clouds.htm (864 words)

	Lenticular clouds over NCAR (Site not responding. Last check: 2007-10-09)
		Lenticular clouds over Boulder on 20 March 2002 gave the impression of a fleet of alien ships about to land.
		Lenticular clouds, which occur at mid-levels of the troposphere (about 20,000 feet above sea level), form at the peaks of these waves.
		Bill is a scientist in the Atmospheric Chemistry Division at NCAR whose research interests include dynamic variability and climatology of the stratosphere and the observed variability of trace constituents in the middle atmosphere using satellite observations.
	www.scd.ucar.edu /news/02/fotoweek/0321.clouds.html (150 words)

	Lenticular Cloud
		The Sun is behind the center of the upper part of the cloud.
		I could not take pictures for three hours, because the Sun was apparently too close to the cloud.
		The cloud did not move essentially from the beginning until this last stage of its developing.
	www.geocities.com /total_solar_eclipse/lenticular.html (103 words)

	Lenticular Clouds - Big Island - 11/25/03
		Lenticular Clouds, technically known as altocumulus standing lenticularus, are a strange looking cloud formation that form as strong winds blow over and around rough terrain.
		With the atmosphere containing enough moisture at mid and upper levels, lenticular clouds formed in the region where the "wave" was peaking.
		In fact, the cloud was constantly reforming on the side where the air moves upward and dissipating on the side with the descending air.
	www.prh.noaa.gov /hnl/pages/events/lenticular/lenticular.php (505 words)

	Gliding Magazine \| Features
		In the centre is a sketch of typical clouds.
		The size of low cumulus clouds is limited by the stable layer and the tops are capped by lenticular clouds.
		The upwind edge of the smooth lenticular cloud often marks the strongest lift.
	www.glidingmagazine.com /FeatureArticle.asp?id=238 (1511 words)

	APOD: 2003 December 1 - A Lenticular Cloud Over Hawaii (Site not responding. Last check: 2007-10-09)
		Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
		clouds at each layer where the air saturates with moisture.
		The result can be a lenticular cloud with a strongly layered appearance.
	antwrp.gsfc.nasa.gov /apod/ap031201.html (119 words)

	STUDENT PILOT NETWORK - THE FLYING WEATHERMAN WITH CHRIS DUNN (Site not responding. Last check: 2007-10-09)
		A Lenticular, or lens-shaped cloud often marks the location of a mountain wave...some of the most turbulent conditions you may ever encounter.
		Lenticular clouds most commonly form as stable air is lifted over a mountain range, and then descends again.
		This type of cloud is also known as a "standing lenticular" cloud...because the air is moving but the cloud has the appearance of standing still.
	www.studentpilot.net /weather/faqs.html (1748 words)

	[No title]
		These formations are frequently caused by wave motions in the atmosphere, and are frequently seen in mountains or hilly areas.
		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 the cloud and are carried to the downwind edge - where they evaporate.
		The cloud as a whole is usually stationary - or slow moving.
	www.sgisland.org /pages/environ/c_clouds.htm (117 words)

	PSC Meteorology Program Cloud Boutique (Site not responding. Last check: 2007-10-09)
		Some of these clouds can develop into the multi-level clouds and can go through various phases, such as, a morning stratus deck turning into late morning stratocumulus, then early afternoon cumulus, and vertical development into cumulonimbus which can produce heavy rain and possible thunder.
		Sometimes, these strong cumulonimbus clouds can have appendages protruding from the base of the cloud, which are called "mammatus " clouds because they resemble the mammary glands of mammals.
		Cap clouds [no photo yet] form when air containing water vapor is uplifted on the windward slide of the slope and reaches saturation producing liquid water cloud droplets and a cloud which can "cap" the summit.
	www.millville.org /Workshops_f/Rowe_Science/clouds_f/cldtext/clouds2.html (1248 words)

	eFluids (Site not responding. Last check: 2007-10-09)
		Lenticular clouds are created by the effect of hills or mountains on flow in our atmosphere.
		The processes of condensation and revaporization of vapor in the air take place irrespective of the magnitude of the velocity in the flow, as these processes are forced by the mountain topography.
		As a result, these lenticular clouds are more or less fixed with respect to the mountain, although they consist of different material at each point in time.
	www.efluids.com /efluids/gallery_jim/wind_pages/lenticular_cloud_page.htm (255 words)

	Lenticular Products of LPC-Europe
		Lenstar is a kind of PET specially created by Eastman Chemical to produce lenticular sheets as it combines the advantages of PET and PETG.
		As you can read on our lenticular process page, lenticular is a HIGH RESOLUTION process as the lenticular sheet is magnifying the data that is printed to the backside of the lens.
		Since a Lenticular job requires a perfect make-ready with the lowest possible pressures between plate and blanket, and blanket to substrate, our choice for blankets is to use a premium conventional blanket with high durometer, and very good ink release, in combination with low tack inks.
	lpc-europe.com /lenticular_faq.shtml (2134 words)

	The Weather Notebook \| Lenticulars
		Lenticular, or to be technical, "altocumulus lenticularis," comes from the Latin root meaning "lens-shaped." To get lenticular clouds, you need just the right conditions.
		Although the lenticular can hover over an area for an hour or more, each molecule is actually only traveling through, going from vapor to visible droplet and back to vapor.
		Lenticulars are also known as "cap clouds" as they are often found right over mountain tops.
	www.weathernotebook.org /transcripts/2004/06/17.php (323 words)

	Lenticular Clouds
		They do not move along as most clouds do but tend to linger in one place for hours.
		It is called a lenticular cloud, due to its lens-shaped appearance.
		These clouds are formed by so-called mountain waves of air created by strong winds forced over high mountains.
	www.crystalinks.com /lenticular.html (284 words)

	Lenticular Cloud UFOs (Site not responding. Last check: 2007-10-09)
		These unusual clouds are often shaped like flying saucers, and are like most clouds in that they are formed by water droplets.
		Lenticular clouds are usually formed over rugged terrain during high winds, and are quite noticeable when there are few other clouds.
		The dry air at the top may be quite stratified in moisture content, and hence forms clouds at each layer where the air saturates with moisture.
	iwasabducted.com /ufomistakes/clouds (176 words)

	WEATHER ELEMENTS
		There is a special type of cloud, which frequently forms as strong winds, sweeps up and over the tops of high mountains.
		It is called a lenticular formation and its name is the result of its lens-like shape.
		These clouds indicate what can be expected with regard to turbulence, visibility, and precipitation.
	www.coweta.k12.ga.us /nhs/rotc/F-2WXelem_files/slide0032.htm (86 words)

	B97Hawaii.com
		Lenticular clouds are relatively rare phenomena, but happen several times a year on the Big Island, usually between Mauna Loa and Mauna Kea.
		Lenticular clouds are wave clouds that have a lens shape (or stack of plates).
		These clouds form wherever stable moist air flows over a mountain, creating a series of waves on the downwind side.
	www.b97hawaii.com /lenticularclouds.html (112 words)

	Pete Newman - Lenticular Clouds (Site not responding. Last check: 2007-10-09)
		Lenticular (lens-like) clouds are relatively rare phenomena, but one evening in early January, 1997, I saw a particularly impressive display near Nerja, on the Costa del Sol in southern Spain.
		The clouds were under-lit by the Sun from behind my right shoulder, making the whole scene look pretty spacey - you can understand how some people might label them as UFOs.
		Some other images of lenticular clouds and a better description of the phenomenon can be found at the PSC Meteorology Program Cloud Boutique.
	sa1.star.uclan.ac.uk /~prn/lenticular/clouds.html (163 words)

	Cloudman tells the story of the Lenticular Cloud
		At the time we took first notice of it, the entire cloud was located to the southeast of the summit of Mount Hood.
		The sun was just coming up and that is why the cloud was so colorful.
		The cloud stayed in approximately the same location until we left the ski slope at about 3:00 P. The shape of the cloud changed during the day and eventually took on a spiral shape, but remained massive.
	www.cloudman.com /lenticular.htm (236 words)

	Houze's Cloud Atlas: Orographic Clouds
		In the distance is a wave cloud band capping the Continental Divide, which is the main orographic barrier.
		Looking upwind at a lenticular wave-cloud band (foreground) forming in the lee of the Continental Divide, which is in the distance, far beyond the foothill mountains seen in the foreground.
		Turbulent rotor cloud downwind (left-hand side of the photo) of the Sierra Nevada mountain range in the Owens Valley near Bishop, California.
	www.atmos.washington.edu /gcg/Atlas/oro.html (216 words)

	The Weather Notebook: Listener Question: Lenticular Clouds (Site not responding. Last check: 2007-10-09)
		Lenticular clouds as seen from the summit of Mount Washington in NH Observatory photo album
		Well, neither really, Lenticular clouds are made of water, tiny, tiny drops of liquid water -- just like all clouds except for the very high cirrus clouds, which are made of ice crystals.
		Two beautiful photos of lenticular clouds near Nerja, on the Costa del Sol in southern Spain.
	www.weathernotebook.org /transcripts/1999/07/13.html (372 words)

	Astronomy Picture of the Day 3-26-03 (Site not responding. Last check: 2007-10-09)
		Lenticular clouds can be shaped like a saucer, and can fly in the sense that, like most clouds, they are composed of small water droplets that float on air.
		Lenticular clouds can take on particularly strange, layered shapes.
		Above, a couple stopped their car near Yellowstone National Park in Wyoming, USA to photograph this lenticular cloud behind picturesque windmills.
	www.freerepublic.com /focus/f-chat/875794/posts (421 words)

	Astronomy Picture of the Day 4-30-03 (Site not responding. Last check: 2007-10-09)
		Actually, pictured above are several clouds all stacked up into one striking lenticular cloud.
		The same lenticular cloud also looks strange when photographed from 30 kilometers away.
		Lenticular clouds were also the subject of the 3-26-03 APOD.
	www.freerepublic.com /focus/f-chat/903015/posts (358 words)

	LENTICULAR CLOUD IN MALAYSIA (Site not responding. Last check: 2007-10-09)
		From the photograph (see photo), the "UFO" is quite typical of what is known as a lenticular cloud.
		The brightness of the tenuous image is due to the backlighting angle of the sun and the nearly-elliptical shape is typical for lenticular clouds (double convex shaped).
		The edges of the image are comparable to features on the other clouds in the photo.
	www.geocities.com /foxbat2my/cloud.html (556 words)

	meteorology (Site not responding. Last check: 2007-10-09)
		Although the lenticular cloud has a saucer shape, it is rarely mistaken for a UFO.
		Additionally, since it is a product of air rising into a cloud and altering its shape, accompanying, intact, clouds also help clarify the true nature of the lenticular formation.
		Essentially, if a UFO is reported in front of a cloud bank, we can estimate its height based on the altitude the cloud type inhabits.
	home.fuse.net /arcsite/meteorology.htm (387 words)

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