Coastal Weather

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    Coastal Weather

    Coastal weather can be observed in the coastal or oceanic regions. The western coasts of the

    continents and the southeastern regions of Australia are characterized with their coastal

    climate.

    The southeastern Australia is located between the South Pacific Ocean and the Indian Ocean.

    One of the most prominent characteristics of coastal weather is that the temperature does not

    vary so much with the change of seasons throughout the year in these of these coastal areas.

    The climate of marine regions is never extremes.

    Hot Weather

    Extreme hot weather can be seen in the equatorial regions of the earth. Throughout the year,

    the temperature remains very warm in these equatorial locations. The climate in equatorial

    regions is also characterized with a very damp and humid weather. The amount of rainfall is

    also very high throughout the year. Sometimes the temperature falls a little (only about 3

    degrees of Celsius) in the winter months.

    Cold Weather

    Cold weather can be observed in the polar climate zones. These regions are known for their

    extreme cold climates. The temperature remains almost same throughout the year n these Polar

    Regions.

    Mountain Weather

    The weather in the mountainous regions is known as the mountain weather. The climate of

    those regions is generally cold enough. New Zealand comes under those high countries that

    enjoy the mountain weather conditions.

    I'm going to list ten types and I expect you to look through a book or something else (maybe

    wikipedia?) to find information that will aid in your own description.

    Type 1: Sunny Skies

    Type 2: Cloudy Skies

    Type 3: Fog

    Type 4: Rain

    Type 5: Freezing Rain and/orSleet

    Type 6: Snow

    Type 7: Thunderstorm

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    Type 8: Windy Days

    Type 9: Very Warm and Very Humid

    Type 10: Very Cold and Very Dry

    Rainy

    Stormy

    Sunny

    Cloudy

    Hot

    Cold

    Dry

    Wet

    Windy

    Hurricanes

    Sand-storms

    Snow-storms

    Tornados

    Humid

    Foggy

    Snowy

    Weather

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    Clouds

    Weather type 1 - Clouds

    There are four basic types of clouds. High clouds,

    middle clouds, low clouds, and clouds with verticaldevelopement. There are also clouds that don't fallinto any of these groups.

    Click the link to get the whole story onclouds.

    http://www.tropicalweather.net/weather-clouds.htmlhttp://www.tropicalweather.net/weather-clouds.htmlhttp://www.tropicalweather.net/weather-clouds.htmlhttp://www.tropicalweather.net/weather-clouds.html
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    Dust

    Weather type 2 - Dust Storm

    Dust storms are created by winds moving across an

    arid region. Many times a strong dry cold front is themechanism that creates the dust or sand storm. Asstrong winds move across an arid landscape, sandor dirt is picked up from the ground. Sometimes the

    lighter dust particles can be lifted up to 20,000 feethigh into the atmosphere. A classic example of thisis a sand and dust storm that develops over the

    Sahara desert. Easterly winds may carry the dust

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    particles across the Atlantic ocean to the CaribbeanIslands or Florida. Severe sand and dust storms can

    obscure visibility to zero and last for days. Picturecourtesy of NOAA, George E. Marsh.

    Fog

    Weather type 3 - Fog

    Fog is a stratus cloud on the ground. There areseveral types of fog. Advection fog is produced by ahortizontal motion of warm moist air over colderground. An example of this would be a warm front

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    moving across land with a recent snow or coldweather. Radiation fog is produced as heat from the

    earth surface is radiated back to space at night. Amoist layer and nearly calm winds need to bepresent. Wind can mix in dryer air aloft, keeping the

    air below the saturation point. Steam fog forms

    when cold air moves over relatively warm water.This can be observed as wisps of "steam" rising from

    lakes, rivers or oceans when a cold air mass movesin. Upslope fog occurs as air is pushed up amountainside and becomes saturated so thatcondensation occurs. Fog photographs courtesy ofRich Johnson and NOAA

    Freezing Rain / Ice

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    Weather type 4 - Freezing Rain / Ice

    Freezing rain - known as "ice" occurs when a thinlayer of freezing or below freezing air exists near the

    earth's surface. Typically this occurs when snow fallsinto warmer air changing the precipitation into rain.If a very thin layer of freezing air is present near the

    ground the rain will freeze on objects such as powerlines, trees, and cars. Ice accumulations begin tocause serious problems when the ice is 1/2" orgreater on objects. Freezing rain pictures courtesy ofNick Stefano.

    Hail

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    Weather type 5 - Hail

    The exact processes that creates hail are still being

    studied. Traditionally, textbooks showed hailstonesbeing formed as a water droplet was carried aloftwith an updaft into subfreezing air and freezing. As

    the ice moved into a downdraft, more water coatedthe hailstone. The cycle continued with the hailstonecontinuing to grow with each ride up and down theupdraft and downdraft.

    More recent studies suggest that super cooled waterdroplets are carried aloft by strong updrafts inthunderstorms. A small ice particle forms and grows

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    as "waves" of supercooled water droplets continueto bump into the ice particle. A new coat of ice

    grows with each cycle. The hailstone is kept aloft bythe strong updraft. The stronger the updraft thegreater the force to keep the heavier hailstones

    aloft. The hailstone eventually falls to the grown

    when the the weight is too great for it to remainaloft or when it gets pushed out of the updraft.

    Sometimes hailstones bump into each other whilebeing bombarded with supercooler water dropletsand stick together giving the hailstone a spikedappearance.

    The largest known hailstone fell on June 23, 2003 in

    Aurora, Nebraska and had a diameter of seveninches and weighed almost one pound. The heaviesthailstone fell in Coffeeville, Kansas on September 3,

    1970 and weighed 1.7 pounds. Hail is considered

    severe when the diameter reaches one inch orquarter size.

    Hail photographs courtesy of NOAA and Jim

    Reed. jimreedphoto.com

    Hurricanes

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    Weather type 6 - Hurricane

    Check out our complete library onhurricaneson ourhurricane school page. We also havehurricane

    tracking chartsso that you can follow the path ofhurricanes. Check out just about anything you wantto know about hurricanes on the hurricane library

    tab at the top menu. Hurricane pictures courtesy ofNOAA.

    Lightning

    http://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.htmlhttp://www.tropicalweather.net/answers_to_questions_about_hurricanes.html
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    Weather type 7 - Lightning

    Lightning is simply a discharge of electricity in theatmosphere. For a complete look at this interesting

    phenomenon check the facts aboutlightningpage.Lightning photographs courtesy of JimReedjimreedphoto.comand NOAA.

    Rain

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    Weather type 8 - Rain

    Rain is precipitation in liquid form. Liquidprecipitation can occur as mist, drizzle, or rain.

    Droplet size differentiates the type that it isclassified. Mist is generally 50-500 microns in size.Drizzle is .5 to 2 millimeters in size and rain is 2

    millimeters to 1 centimenter in size. Rain is formedwhen condensation of water vapor occurs condensesinto water droplets.

    Precipitation in the form of rain can be created in anumber of different ways. First, two types ofprocesses cause minute droplets to form rain drops.Collision coalescence is a process where tinydroplets gradually grow in size by bumping into each

    other and growing. This is mostly a warm cloudprocess where temperatures are above freezing. Thesecond process is a cold cloud process where super

    cooled water droplets freeze on ice nuclei. These icenuclei grow into ice crystals. The snowflakes fall andturn into rain drops as the temperatures go above

    freezing. This is the primary process that producesrainfall.

    Lifting to produce rainfall occurs in a number ofdiffernt ways. 1. A low pressure system andassociated fronts 2. Mountains or higher terrain 3.

    Atmospheric convection

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    Sleet

    Weather type 9 - Sleet

    Sleet is transparent frozen raindrops. Sleet or icepellets are created when snow falls into air abovefreezing and melts into rain drops. If another belowfreezing layer below the warm air is of sufficient

    depth, the rain drops freeze into balls of ice or icepellets. Any significant amount of sleet is farily rare.This is due to the fact that there needs to be just

    the right conditons to get a perfect layer of warm air

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    in between the layers of cold air. There have beencases of storms producing several inches of sleet. A

    mix of snow and sleet and sleet and rain is morecommon. Sleet pictures courtesy of NOAA.

    Snow

    Weather type 10 - Snow

    Snow is the accumulation of crystal snowflakes.Snowflakes are made as water ice crystalizes. Thecrystals may form in many different shapes dictatedby the water content and temperature in the cloud

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    as the snowflakes are forming. Snowflakes can takethe shape of columns, dendrites, plates, needles and

    other six sided shapes. It is possible for it to snowseveral degrees above freezing if the air aloft is verycold and the above freezing layer is shallow near the

    ground.

    The greatest 24 hour snowfall in North America was

    76" Silver Lake, Colo. April 1415, 1921. Thegreatest amount of snow for one storm in NorthAmerica was 189" at Mt. Shasta Ski Bowl, California,Feb. 1319, 1959. The one season snowfall recordfor North America was 1,140" at Mount Baker,Wash. 19981999. Snow pictures courtesy of winter

    weather expert Paul Kocin.

    Sun

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    Weather type 11 - Sunny

    Sunny weather or clear skies is defined as less than

    1/8 sky cloud cover. Mostly sunny skies ischaracterized by 1/8 - 2/8 sky cloud cover. Sunnyskies many times are observed when a high

    pressure area is dominating the weather pattern.High pressure signifies a region of sinking air whichtends to dry out the atmosphere resulting in lessmositure to form clouds. Deserts are locations withsunny or mostly sunny skies due to high pressuresystems influencing the weather pattern much of theyear.

    Thunderstorms

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    Weather type 12 - Thunderstorms

    Thunderstorms are cumulonimbus clouds thatproduce thunder and lightning. Discover more

    aboutthunderstormshere. Thunderstormphotographs courtesy of NOAA / NSSL and RichJohnson.

    Tornado

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    Weather type 13 - Tornado

    A tornado is a violently rotating column of air usuallyproduced by severe thunderstorms. For much more

    about tornadoes, check out ourtornadoespage.Tornado photographs courtesy of JimReed.jimreedphoto.com

    Wind

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    Weather type 14 - Wind

    Wind is the motion of air in the atmosphere. Wind iscaused by an imbalance of heating from the sun.

    The uneven heating generates an unbalancedpressure field. Air from a high pressure area flowstoward a region of low pressure to balance the

    pressure field. A wind vane points to the directionfrom where the wind is blowing from and ananemometer measures how fast the wind is blowing.

    The strongest surface wind gust was 253 mph onAustralia's Barrow Island during Cyclone Olivia in

    1996. The previous record was 231 mph record setatop Mount Washington on April 12, 1934.Photographs courtesy of Rich Johnson and the

    Sydney Morning Herald.

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