Precipitation Meteorology

Meteorology p7 - precipitation

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Duration: 6:43
Updated: 19 Jan 2014
views: 179

In this screencast we look into how precipitation forms, and the various types.

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CE 433 - Class 9 (9/24/2013) Precipitation Meteorology and Point Measurement

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Duration: 55:22
Updated: 24 Sep 2013
views: 717

Description Not Provided.

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Weather & Meteorology : How Can I Find Out the Normal Precipitation for My Area?

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Duration: 1:30
Updated: 05 Jun 2009
views: 290

The normal precipitation for an area can be easily researched on the Internet at weather.gov, which is the Web site for the National Weather Service. Discover how precipitation averages vary greatly throughout the world with help from a meteorologist in this free video on understanding weather. Expert: Charlie Neese Contact: www.charlieneese.com Bio: Charlie Neese is an Emmy Award-winning television meteorologist and severe weather safety expert based in Nashville, Tenn. Filmmaker: Dimitri LaBarge

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Precipitation: Chemistry Not Meteorology

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Duration: 4:20
Updated: 07 Dec 2011
views: 108

wn.com/Precipitation Chemistry Not Meteorology

Weather & Meteorology : How Do You Measure Rainfall?

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Duration: 1:44
Updated: 05 Jun 2009
views: 9464

Rainfall is most commonly measured with a rain gauge, which can usually be found at an outdoor store or discount store. Discover why rain gauges need to be strategically placed in the open with help from a meteorologist in this free video on understanding weather. Expert: Charlie Neese Contact: www.charlieneese.com Bio: Charlie Neese is an Emmy Award-winning television meteorologist and severe weather safety expert based in Nashville, Tenn. Filmmaker: Dimitri LaBarge

wn.com/Weather Meteorology How Do You Measure Rainfall

Weather: "Know Your Clouds" 1966 US Army Meteorology Cloud Identification

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Duration: 16:07
Updated: 08 Oct 2014
views: 18127

More at http://scitech.quickfound.net/weather_news_and_links.html "DEVELOPMENT OF THE TEN BASIC TYPES OF CLOUDS, THEIR PRINCIPAL CHARACTERISTICS, THEIR RELATIVE POSITIONS AND AVERAGE ALTITUDES, AND THEIR FLIGHT HAZARDS." US Army training film TF46-3724 Reupload of a previously uploaded film, in one piece instead of multiple parts. Public domain film from the National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization (the resulting sound, though far from perfect, is far less noisy than the original). http://www.crh.noaa.gov/lmk/?n=cloud_classification Clouds are classified according to their height above and appearance (texture) from the ground. The following cloud roots and translations summarize the components of this classification system: 1) Cirro-: curl of hair, high. 3) Strato-: layer. 5) Cumulo-: heap. 2) Alto-: mid. 4) Nimbo-: rain, precipitation. High-level clouds: High-level clouds occur above about 20,000 feet and are given the prefix "cirro-". Due to cold tropospheric temperatures at these levels, the clouds primarily are composed of ice crystals, and often appear thin, streaky, and white (although a low sun angle, e.g., near sunset, can create an array of color on the clouds). The three main types of high clouds are cirrus, cirrostratus, and cirrocumulus. Cirrus clouds are wispy, feathery, and composed entirely of ice crystals. They often are the first sign of an approaching warm front or upper-level jet streak. Unlike cirrus, cirrostratus clouds form more of a widespread, veil-like layer (similar to what stratus clouds do in low levels). When sunlight or moonlight passes through the hexagonal-shaped ice crystals of cirrostratus clouds, the light is dispersed or refracted (similar to light passing through a prism) in such a way that a familiar ring or halo may form. As a warm front approaches, cirrus clouds tend to thicken into cirrostratus, which may, in turn, thicken and lower into altostratus, stratus, and even nimbostratus. Finally, cirrocumulus clouds are layered clouds permeated with small cumuliform lumpiness. They also may line up in streets or rows of clouds across the sky denoting localized areas of ascent (cloud axes) and descent (cloud-free channels). Mid-level clouds: The bases of clouds in the middle level of the troposphere, given the prefix "alto-", appear between 6,500 and 20,000 feet. Depending on the altitude, time of year, and vertical temperature structure of the troposphere, these clouds may be composed of liquid water droplets, ice crystals, or a combination of the two, including supercooled droplets (i.e., liquid droplets whose temperatures are below freezing). The two main type of mid-level clouds are altostratus and altocumulus. Altostratus clouds are "strato" type clouds (see below) that possess a flat and uniform type texture in the mid levels. They frequently indicate the approach of a warm front and may thicken and lower into stratus, then nimbostratus resulting in rain or snow. However, altostratus clouds themselves do not produce significant precipitation at the surface, although sprinkles or occasionally light showers may occur from a thick alto-stratus deck. Altocumulus clouds exhibit "cumulo" type characteristics (see below) in mid levels, i.e., heap-like clouds with convective elements. Like cirrocumulus, altocumulus may align in rows or streets of clouds, with cloud axes indicating localized areas of ascending, moist air, and clear zones between rows suggesting locally descending, drier air. Altocumulus clouds with some vertical extent may denote the presence of elevated instability, especially in the morning, which could become boundary-layer based and be released into deep convection during the afternoon or evening...

wn.com/Weather Know Your Clouds 1966 US Army Meteorology Cloud Identification

How to find rainfall intensities from bureau of Meteorology web sites.

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Duration: 4:47
Updated: 27 Feb 2015
views: 1200

This tells you how to find the required design rainfall intensity for towns not listed in the drop down list in the free roof gutter and down pipe sizing programs available here www.roof-gutter-design.com.au. It also gives a run down on how to use the calculator and what it does.

wn.com/How To Find Rainfall Intensities From Bureau Of Meteorology Web Sites.

Weather: How Does High and Low Pressure Affect Precipitation?

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Duration: 4:41
Updated: 18 May 2014
views: 4102

Weather: How Does High and Low Pressure Affect Precipitation?

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Destructive Weather(full documentary)HD

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Duration: 57:28
Updated: 04 Apr 2015
views: 67771

Severe weather refers to any dangerous meteorological phenomena with the potential to cause damage, serious social disruption, or loss of human life.[1] Types of severe weather phenomena vary, depending on the latitude, altitude, topography, and atmospheric conditions. High winds, hail, excessive precipitation, and wildfires are forms and effects of severe weather, as are thunderstorms, downbursts, lightning, tornadoes, waterspouts, tropical cyclones, and extratropical cyclones. Regional and seasonal severe weather phenomena include blizzards, snowstorms, ice storms, and duststorms Mysteries of the Universe:Big Bang Machine:https://youtu.be/htP_XqfTU-0 Most Powerful Tornadoes in History:https://youtu.be/gAadS8FJj6g Deadliest Active Volcanoes:https://youtu.be/qV-Wm4PKyxQ Voyager`s Epic Quest to The Unknown:https://youtu.be/t8hb9n-Laps Exploring Deepest Darkest Space:https://youtu.be/eqz7iykODI0 Global Warming:Extreme Ice Survey:https://youtu.be/8IxR_sKon5Y Extreme Cave Divers:Lost Worlds:https://youtu.be/gq-fcR1tGm0 Worlds Biggest Ship:Emma Maersk:https://youtu.be/a4-nRmvi3TA Evolution Narrated by Liam Neeson:https://youtu.be/OSTzZwkHvGA

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Chapter 05J Measuring Precipitation.mp4

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Duration: 4:52
Updated: 25 Feb 2012
views: 320

Intro to Meteorology Chapter 05J Measuring Precipitation

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Chapter 05I Precipitation Misc.mp4

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Duration: 11:59
Updated: 25 Feb 2012
views: 445

Intro to Meteorology Chapter 05I Precipitation Misc

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Global Atmospheric Circulation

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Duration: 2:25
Updated: 17 Dec 2011
views: 174274

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Cold Front 1961 US Navy Training Film; Meteorology, Weather

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Duration: 13:57
Updated: 09 Apr 2013
views: 2909

more at http://scitech.quickfound.net/weather_news_and_links.html United States Navy training film MN-9487d Meteorology: The Cold Front Low quality print, but good content. There is a broadband hum in the vocal frequencies of the audio which I cannot completely remove. Public domain film from the US Navy, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is less noisy than the original). Meteorology & Weather playlist: http://www.youtube.com/playlist?list=PL2A2CCF5FEFCA2F78 http://creativecommons.org/licenses/by-sa/3.0/ http://en.wikipedia.org/wiki/Cold_front A cold front is defined as the leading edge of a cooler mass of air, replacing (at ground level) a warmer mass of air, which lies within a fairly sharp surface trough of low pressure. It forms in the wake of an extratropical cyclone, at the leading edge of its cold air advection pattern, which is also known as the cyclone's dry conveyor belt circulation. Temperature changes across the boundary can be as much as 30 °C (54 °F)[citation needed]. When enough moisture is present, rain can occur along the boundary. If there is significant instability along the boundary, a narrow line of thunderstorms can form along the frontal zone. If instability is less, a broad shield of rain can move in behind the front, which increases the temperature difference across the boundary. They are stronger in the fall and spring transition seasons, and weakest during the summer. When they catch up with the preceding warm front, the portion of the boundary which does so is then known as an occluded front... Development of cold front The cooler and denser air wedges under the less-dense warmer air, lifting it. This upward motion causes lowered pressure along the cold front and can cause the formation of a narrow line of showers and thunderstorms when enough moisture is present. On weather maps, the surface position of the cold front is marked with the symbol of a blue line of triangles/spikes (pips) pointing in the direction of travel. A cold front's location is at the leading edge of the temperature drop off, which in an isotherm analysis would show up as the leading edge of the isotherm gradient, and it normally lies within a sharp surface trough. Cold fronts move faster than warm fronts and can produce sharper changes in weather. Since cold air is denser than warm air, it rapidly replaces the warm air preceding the boundary. In the northern hemisphere, a cold front usually causes a shift of wind from southwest to northwest clockwise, also known as veering, and in the southern hemisphere a shift from northeast to southwest, in a clockwise manner... Precipitation A cold front commonly brings a narrow band of precipitation that follows along the leading edge of the cold front. These bands of precipitation are often very strong in nature, and can bring severe thunderstorms, hailstorms and/or tornadoes. In the spring, these cold fronts can be very strong, and can bring strong winds when the pressure gradient is tighter than normal. During the winter months, cold fronts sometimes come through an area with little or no precipitation. Wider rain bands can occur behind cold fronts which tend to have more stratiform, and less convective, precipitation. These rainstorms sometimes bring flooding, and can move very slowly when the storm steering it is strong and embedded within a meridional flow pattern (with more pole to equator motion rather than west to east motion). In the winter, cold fronts can bring cold spells, and occasionally snow. In the spring or summer in temperate latitudes, hail may occasionally fall along with the rain. If moisture is not sufficient, such as when a system has previously moved across a mountain barrier, cold fronts can pass without cloudiness. Undercutting The idea that cold air wedges, or undercuts, the warm air is often used to depict how advancing cold fronts force warm air to rise along the sloping cold air, much like a snow shovel scooping up snow, creating instability. Provided with sufficient moisture, the rising air would thus condense, creating storms, clouds, and/or rain. While this concept is used to generally describe frontal precipitation patterns, it is technically incorrect. Frontogenetical Circulation Frontogenesis is the process of creating or steepening the temperature gradient of a front...

wn.com/Cold Front 1961 US Navy Training Film Meteorology, Weather

Writing Equations for Precipitation Reactions 1 Chemistry

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Duration: 5:22
Updated: 20 Aug 2013
views: 3586

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PHS165 Precipitation

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Duration: 40:12
Updated: 02 Mar 2015
views: 3

PHS165 Precipitation

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Precipitation

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Duration: 39:22
Updated: 15 Aug 2014
views: 217

In meteorology, precipitation is any product of the condensation of atmospheric water vapour that falls under gravity. The main forms of precipitation include drizzle, rain, sleet, snow, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapour, so that the water condenses and "precipitates". Thus, fog and mist are not precipitation but suspensions because the water vapour does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapour to the air. Generally, precipitation will fall to the surface; an exception is virga which evaporates before reaching the surface. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Rain drops range in size from oblate, pancake-like shapes for larger drops, to small spheres for smaller drops. Unlike raindrops, snowflakes grow in a variety of different shapes and patterns, determined by the temperature and humidity characteristics of the air the snowflake moves through on its way to the ground. While snow and ice pellets require temperatures close to the ground to be near or below freezing, hail can occur during much warmer temperature regimes due to the process of its formation. Moisture overriding associated with weather fronts is an overall major method of precipitation production. If enough moisture and upward motion is present, precipitation falls from convective clouds such as cumulonimbus and can organize into narrow rainbands. Where relatively warm water bodies are present, for example due to water evaporation from lakes, lake-effect snowfall becomes a concern downwind of the warm lakes within the cold cyclonic flow around the backside of extratropical cyclones. Lake-effect snowfall can be locally heavy. Thundersnow is possible within a cyclone's comma head and within lake effect precipitation bands. In mountainous areas, heavy precipitation is possible where upslope flow is maximized within windward sides of the terrain at elevation. On the leeward side of mountains, desert climates can exist due to the dry air caused by compressional heating. The movement of the monsoon trough, or intertropical convergence zone, brings rainy seasons to savannah climes. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video

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Weather Song Video

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Duration: 3:36
Updated: 09 Jun 2015
views: 342091

The weather song teaches kids about the different types of weather, weather conditions, weather facts and weather vocabulary. Download the Science Songs on iTunes - CLICK HERE: https://itunes.apple.com/us/album/science-songs/id423354230 Order the Science Songs CD - CLICK HERE: http://www.havefunteaching.com/shop/science/science-songs Weather Song Lyrics: Weather is a combination of many things It never stays the same; it’s always changing Precipitation will come in many forms Depending if the temperature is cold or warm If it’s cold, you see, it could be windy Blowing snow and sleet could make the roads icy If it’s warm, you know, you could see a tornado Watch the rain pouring down and see a thunderstorm show Hey, the weather is the state of the atmosphere Hot, cold, wet, dry, look into the sky Hey, the weather is the state of the atmosphere Stormy, cloudy, calm, clear, weather happens all year Spin Around, Do The Tornado Meteorology is the study of the weather If we look at the climate we can predict it much better Warm fronts, cold fronts, lightning and thunder To find the temperature you can use a thermometer Hurricanes form in the warm ocean water The most powerful storm when compared to any other Tornadoes are smaller, but the damage can be greater A watch means it’s possible, a warning: take cover! Dance like it's windy. Dance like it's warm. Dance like it's cold. Now, dance in a storm. Clouds come in many different sizes and shapes Cold air rises and makes water vapor that creates Condensation, then precipitation, here’s a cloud list: Fog, stratus, cumulus, nimbus, cirrus Lightning is striking at 50,000 degrees I hear the sound of thunder and feel the cool weather breeze Red sky in the morning - take warning of the storm Red sky in the night - the weather will be a delight

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11How Do You Measure Rainfall Weather Meteorology eHow.co.uk.flv

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Duration: 1:37
Updated: 26 Jul 2011
views: 54

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OU Hydrometeorology 2015: Drivers of Great Plains Precipitation

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Duration: 6:48
Updated: 03 May 2015
views: 2

Video review of the many aspects of the Great Plains which impact precipitation over the region. This project was conducted as part of the OU School of Meteorology Hydrometeorology course, taught by Dr. Jeffrey Basara. Student Project Team Sean Benedict Zachary Biggs Meghan Conway Paul Goree Brooke Hagenhoff Jessica Tomaszewski Skylar Williams

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Professor Predicts Precipitation

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Duration: 0:20
Updated: 02 Dec 2014
views: 8

My meteorology professor, Dr. Kramer, predicted that it would snow by the time class finished. Here it is.

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Basic Meteorology 101 lesson 5

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Duration: 8:30
Updated: 24 May 2013
views: 41

Understanding what all kind of precipitation is

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Ch05A Cloud Nucleation

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Duration: 5:33
Updated: 11 Jun 2013
views: 439

Ch05A Cloud Nucleation

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Types of Winter Precipitation

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Duration: 2:44
Updated: 22 Feb 2012
views: 82

Barry Gooden, the Warning Coordination Meteorologist for the National Weather Service in Peachtree City, Georgia, explains the different types of frozen precipitation that can occur in the winter.

wn.com/Types Of Winter Precipitation