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Articles related to "Meteorology"
The Other Side of the Mountain: Rainshadows Mountain ranges have a major impact on moist air moving over them. On the windward side, upsloping air leads to a region of heavy precipitation near the summits. But in the descent on the ridge lee, descending air and decreased precipitation forms what we term the rainshadow. weather • meteorology • rainshadow • mountain meteorology • mountain weather
Meteorology vs. Climatology Explore how weather differs from climate, yet how measuring current weather conditions can lead to more accurate climate predictions, specifically climate change. difference weather climate • meteorologist weather forecasting • climatology study • current weather conditions • meteorologists record data
Review – The Cloud Book by Richard Hamblyn Published in association with the UK Met Office this book is an accessible guide to clouds and related phenomenon; particularly when caused by moisture in the atmosphere. the cloud book • richard hamblyn • met office • weather • meteorology
The May 2007 Tornado Outbreak There are many events that echo within a memory, but the tornado outbreak that occurred within only three days is a continuing ring in the heads of many. tornado • outbreak • may • meteorology • weather
Who's Who in Weather: Dr. Joanne Simpson She was a trailblazer in the field of meteorology and opened doors for women around the world. women • woman • meteorology • scientist • science
A Study in Opposites: Thundersnow For most North Americans, the combination, known as 'thundersnow', is a very unusual event. Even where they are most common, thundersnow occurs no more than a few times per year, usually when winter storms with substantial warm and humid air sectors spawn thunderstorms along their fronts, or when air crosses a large lake or rises over a mountain range. weather • meteorology • snow • thundersnow • thunderstorm
Arctic Outbreaks Arctic Outbreaks. They happen in all months of the year and can rate headlines during spring, summer, or early autumn if they bring extreme drops in temperature or killing frost. But it is during the winter that they receive the most attention because arctic outbreaks can drop air temperatures to hazardous levels, increase demands for home heating fuels, produce lake/sea effect snows, or in their deepest southern penetration kill sensitive fruit and vegetable crops in the southern American states. weather • meteorology • arctic outbreaks • winter cold • arctic air masses
Beating El Nino The best way to handle El Niño's devastating effects is to plan ahead... el • nino • weather • research • study
Blizzard! While the media rush to call any severe or heavy snowstorm a blizzard, true blizzards have a strict definition according to meteorologists, and snow need not even fall in a blizzard. Blizzards take on different characteristics when they rage around North America, combining wind and temperature and snow into a variety of recipes, though they all start as low pressure systems. weather • meteorology • blizzard • winter storms • winter
Blue Jets, Red Sprites and Elves Blue jets, red sprites, elves, sprite halos and trolls may sound like Tolkein characters, but these high-altitude entities comprise the newest members in the pantheon of atmospheric electrical phenomena, joining lightning and St Elmo's Fire. weather • meteorology • blue jets • red sprites • atmospheric electricity
Cloudbursts Have you ever gone out for a long walk, run, or bike ride on a gorgeous summer day and been caught in a torrential cloudburst? Bad enough to be caught in the rain, but cloudbursts can leave you drenched to the bone. But have you ever watched the approach of a thunderstorm darken the sky and then been surprised at how bright the day became during the heaviest downpour? weather • meteorology • rain • rainshowers • cloudbursts
Cumulus Humilis: A Fair Weather Cloudscape The dawn brought clear sky But, in a few hours, the warm sun would break the morning chill, and by mid-morning the perfectly clear sky would begin to lose its fair complexion as small buds of whiteness pop up hither and yon. So started a day when cumulus humilis, the most basic of the cumulus cloud family, would fill the skyscape. This cloud type often is the forerunner to larger, more developed cumulus varieties that fill the afternoon sky. But today, these fair-weather cumuli dot the sky within the large high-pressure cell that sat over the region. weather • meteorology • science of the sky • keith heidorn • cumulus
Diamond Dust: Snow Without Clouds During the depths of winter cold, we often hear some weather sage observe, "It's too cold to snow." Truth is, it is never too cold to snow. At very cold temperatures, 40 below zero (C or F) and colder, snow can actually fall out of the clear blue sky without intervening clouds, a weather condition known appropriately enough as diamond dust. weather • winter • meteorology • diamond dust • ice crystals
Dry Thunderstorms When you hear the word thunderstorm in the daily weather forecast, you automatically think of thunder and lightning accompanied by rain, often as a drenching cloudburst, and wind, gusty at times. Not all thunderstorms are wet, however, and that worries those watching for or fighting wildfires. These thunderstorms are called dry thunderstorms. weather • meteorology • thunderstorms • dry thunderstorms • fire weather
Frost on the Pumpkin Short days and low sun angles enhance the dreariness of November skies frequently flushed with stratus clouds from dusk to dawn. But at times, November mornings dawn with a quiet, spectacularly brilliant beauty. These are the mornings touched by the brush of Jack Frost. weather • frost • meteorology • hoar frost • rime
Frost Pockets The lengthening nights during the late summer and autumn bring noticeably colder minimum temperatures across most of North America. If such nights have clear skies and fairly calm regional winds, the potential for temperatures to fall below the freezing mark increases as the days move on toward winter. This is especially true in low-lying terrain, hollows and drainage bottoms where cold air can pool. Such areas are more susceptible to frost than the surrounding terrain and are therefore known as frost pockets. weather • meteorology • frost pockets • cold air drainage • katabatic winds
Gap Winds Terrain interacts with the atmosphere in many ways to alter the weather. If winds push through the terrain in spots, rather than going over it, another set of wind phenomena arises, the gap winds. Gap winds are high-speed winds associated with gaps or low elevation areas in mountainous terrain, and whose direction more or less parallels the gap axis. weather • meteorology • gap winds • topographical winds
Gulf of Alaska Storms Storms move out of the Gulf of Alaska into the Pacific Northwest with great regularity, as many as three or four per week during the height of the winter storm season. Winter Gulf of Alaska storms typically sport winds in excess of 80 km/h (50 mph) with corresponding high waves. Some storms rival the strength of the great hurricanes/typhoons and would be considered as such if their origins were tropical rather than polar. weather • meteorology • winter storms • gulf of alaska • aleutian low
How Do Clouds Float? A frequent question we meteorologists get is: "If water drops are heavier than air, why do clouds float?" With lovely forms of cumulus clouds popping up all around me on this summer's day, that is the question I will tackle this month. weather • meteorology • keith c. heidorn • science of the sky • clouds
Nor'easters and Alberta Clippers The great tropical storms roaming the world's oceans and seas have earned the right for individual names. Extratropical cyclonic storms, those forming from the clash of polar and tropical air masses, have not yet been honoured with individual names. However, some extratropical storms take on such unique characteristics that they are often recognized with a unique name for the genre: the Nor'easter along the Atlantic coast, the Alberta Clipper that races across the continent our of the Alberta plains. weather • meteorology • storms • alberta clipper • nor'easters
Rainbows Rainbows have been part of human mythology and culture for millennia and have fascinated scientists through the ages as well. From two simple ingredients water drops and light, we can form the beauty of a rainbow. Here's how. weather • meteorology • rainbows
Rus: How Climate Impacts Rus Culture Climate has a terrific impact upon people. In the Rus this is as true as it is in the Sahara Desesrt. The vagaries & differences of temparatures is the causation of many social actions & reactions to the weather. rus • russia • ukraine • weather • climate
The Glory and the Brockenspectre Glories appear as a full circle, their coloured rings centered on the observer's shadow. Prior to the advent of regular high-altitude flight, the glory appeared only to those who ascended to high mountain elevations. Today, we can see glories regularly from aircraft flying in the sunlight above uniform cloud decks. A glory is only visible when sunlight is at the observer's back; therefore, they are always exactly opposite the sun. weather • meteorology • glory • brockenspectre • atmospheric diffraction
The Highs and Lows of Weather: Part 1 - The High Among the most commonly recognized weather features are the roaming regions of high and low pressure, designated by H and L on media weather maps, respectively. weather • meteorology • high pressure • high pressure ridge • anticyclone
The Highs and Lows of Weather: Part 2 -- The Low Low pressure areas are the centers of interest in many weather situations for they are the storms that move across the continent. weather • meteorology • low pressure • cyclones • lows
Turning Lakes We generally think of weather processes as occurring from the surface upward into the atmosphere, but weather has its influences downward into the soil and water bodies as well. Seasonal weather interactions play major roles in the processes and ecology of even the smallest freshwater lakes. One of the more important is the semi-annual turnover of a lake's water mass. weather • meteorology • lakes • lake turnover • limnology
Weather Bombs: Rapid Storm Development Weather bombs or bomb cyclones undergo explosive changes in intensity,forming an intense winter storm over a short period when they moved off the land and into the warm Gulf Stream waters off Cape Hatteras. These storms may move up the East Coast to form major snowstorms along their path. meteorology • weather • winter storms • bomb cyclones • weather bombs
Who's Who in Weather: Luke Howard He didn't have formal meteorology training. He never received a degree. He was a businessman, and he named the clouds above. weather • cloud • clouds • cumulus • stratus
Why Is It Coldest After Dawn? A common adage expresses the belief that it is coldest just before dawn and begins to warm with the appearance of dawn's first light, but observations and physical theory show us that the coldest hour of the day is not before dawn but often an hour or so after sunrise. Why is this so? meteorology • weather • science of the sky • coldest before dawn • morning temperature
Winds of the City Walk around any city where buildings rise more than a few stories, and you will experience areas with stronger and gustier winds than felt outside the urban area, at airports, or on sports fields. The prime cause of such urban winds is the redirecting of the over-ridding wind field by the structures themselves. weather • meteorology • urban winds • urban weather • urban wind field
Guide to Online Weather Websites Review of online resources available for worldwide current weather conditions from the most simple to widely elaborate weather data, satellite maps and weather warnings. best weather website • online weather conditions • national weather service • accurate local forecast • bbc weather
The Truth About Global Warming Global Warming is a buzzword we all know and hate. We hear snippets of information about the topic, but much of it is misleading, and some of it is just plain <I>wrong</I>... weather • meteorology • global • warming • heat
Extraordinary Clouds; Pictures of Dramatic Skies Extraordinary Clouds is an appreciation and explanation of dramatic cloud formations by Richard Hamblyn who has done much to explain how clouds form and their structure. extraordinary clouds • richard hamblyn • clouds • weather • meteorology
Weather Lesson Plans Weather is constantly changing and is always worthy of study. homeschool science • preschool weather plans • elementary weather plans • high school weather plans • weather lesson plans
Weather Lore and Saint Swithin The tale of the Watery Saint and the legend about how the weather conditions on 15th July will determine whether it will rain or be fair for the next forty days. saint swithin • meteorology • weather forcasting • folklore • weather lore
Worldwide Meteorological Services Discover the national meteorological services available online for Australia, Canada, Ireland and New Zealand, providing excellent weather forecasts and climate data. worldwide weather services • environment canada reports • australia weather sources • amount of sunshine ireland • new zealand meteorology
A Record Setting Day For those who love weather in all its varied forms, extreme or rare weather events often hold great allure. Spawned by our love of statistics, one extreme event that catches our attention is the breaking of daily temperature records. Whether a record hot day or record cold day, it is sure make local news headlines. If today's weather set a record for either maximum or minimum temperature, you would likely respond with a modicum of interest. If I told you that this day broke both the daily maximum and minimum temperature record, you might exhibit degree of incredulity. I call such days: double record days. weather • meteorology • keith c. heidorn • science of the sky • a record setting day
An early Christmas present for Santa This year, NOAA is giving Santa an early Christmas present because the jolly man in the red suit needs to know what the weather will bring. weather • santa • claus • toys • toy
Historical Curiosities:Part II Why did people die from blood transfusions? Do rocks have babies? The answers to these and other questions. science • history • medicine • meteorology • rocks
Neither Rain Nor Snow Neither rain nor snow, nor freezing rain, for that matter. That is how one must often characterize winter precipitation. Rain and snow are just the most common members of the winter precipitation congregation, but not the only ones. Others include: ice pellets, snow grains, graupel, ice crystals and ice needles and also known by local names in different regions such as sleet, hail, soft hail, snow pellets and diamond dust. weather • winter weather • meteorology • ice pellets • snow grains
Superior Moisture Gain Large water bodies have major influences on the weather,impacting the weather and climate of their shoreline regions. But unless we are involved with the maritime industry or sport sailing, we tend to overlook the weather and climate over the water body itself. Herein, we look specifically at one aspect: on-lake condensation on Lake Superior. weather • meteorology • keith c. heidorn • science of the sky • lake superior
The Flavour of Lows Often in the weather reports we hear of tropical lows, subtropical lows, extratropical lows, and thermal lows. What distinguishes these various flavours of "lows" from one another? weather • meteorology • keith c. heidorn • science of the sky • low pressure
The Water Cycle Revisited Earth is a water planet, yet fresh water is only found in small quantities and in certain areas. Without the Water Cycle to transport fresh water back to the mountains, our rivers would soon run dry. This is a lesson in true recycling. water_cycle • transpiration • distribution • condensation • evaporation
Why Are Lightning Bolts Not Straight? If you've ever watched a spark of static electricity jump from an object like a doorknob to your finger, you perhaps noted that mini-bolt followed a fairly straight-line path from the object to your finger. Lightning bolts are essentially the granddaddy version of that static spark, so why do lightning bolts generally appear so jagged and forked? The answer for lightning's jaggedness arises in its size and formation process. weather • meteorology • keith c. heidorn • science of the sky • stepped leader
Hurricane Season Predictions Although the 2008 Atlantic Basin Hurricane Season doesn't officially start until June 1st, meteorologists have developed predictions for the number of hurricanes. 2008 hurricane season • atlantic basin storms • noaa predictions • tropical meteorology project • william gray csu
Aboriginal Astronomy Consulting the world's first astronomers for knowledge of science and law that has sustained the planet's longest enduring civilisation. indigenous astronomy • indigenous astrology • indigneous meteorology • aboriginal astronomy • indigenous calendar
Cyclone Tracy Destroyed Darwin, Christmas 1974 On Christmas Day 1974, Australians and people around the world heard the city of Darwin had been flattened by Cyclone Tracy. Seventy-one lives were lost in the disaster. cyclone tracy • tropical cyclone • christmas 1974 • darwin australia • cyclone warning
Indigenous Mathematic Systems Our right to maintain ancient and sophisticated mathematical systems has been extinguished by Western assumptions about "primitive logic". indigenous mathematics • indigenous logic systems • indigenous scholars • ptolemy • ptolemy african
Junior Ranger Nature Crafts Terrific nature and camping inspired crafts & activities for your kids' themed birthday party. Boy scout activities are tailored for younger kids in these party plans. junior ranger birthday party • kids birthday party • birthday party • kids party • theme party
Snow Chaos In The UK, 2009 The snow was admittedly beautiful and a change from the seemingly infinite cloud cover and mild that are the status quo, but it had drawbacks too. snowfall in february uk • uk snow • england snow • recent snowfall across england • snow disruption |
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