Examples include the National Oceanic and Atmospheric Administration's National Weather Service (NWS)[80] and Environment Canada's Meteorological Service (MSC).
the state of the atmosphere with respect to wind, temperature, cloudiness, moisture, pressure, etc. from being exposed to the weather or atmosphere. When a few letters make a large difference.
Thus, the expression likens fluffy, falling snow to small tufts of white feathers. [55] MOS or model output statistics is a technique used to interpret numerical model output and produce site-specific guidance. Consequently, a variety of codes have been established to efficiently transmit detailed marine weather forecasts to vessel pilots via radio, for example the MAFOR (marine forecast). [98] Orange groves can suffer significant damage during frosts and freezes, regardless of their timing.[99]. Like other terms denoting time of year or day, Indian summer is often analogously applied to one’s life, indicating a period of renewed vigor or health amidst a stage of general decline. Weather is the condition of the climate in a particular place at a particular time. "[7], In 904 CE, Ibn Wahshiyya's Nabatean Agriculture, translated into Arabic from an earlier Aramaic work,[8] discussed the weather forecasting of atmospheric changes and signs from the planetary astral alterations; signs of rain based on observation of the lunar phases; and weather forecasts based on the movement of winds. Inclement Weather, Power Failure or EmergencyIn the event of inclement weather or unforeseen emergencies on the day of an examination, PSI/AMP will determine whether circumstances warrant the cancellation, and subsequent rescheduling, of an examination. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. There no longer is a temperature criterion for a blizzard. [69] Using a consensus of forecast models, as well as ensemble members of the various models, can help reduce forecast error. The prevalent long term weather conditions in a particular area.
Don't use 'a' with it. Therefore, when in a fluctuating weather pattern, this method of forecasting becomes inaccurate. weather definition: Weather is the condition of the climate in a particular place at a particular time. [82] In all cases, these outlets update their forecasts on a regular basis. This experience accumulated over the generations to produce weather lore. a piece of metal (often in the form of a farmyard cock), placed on top of a building, which turns to show the direction of the wind. 2 : state or vicissitude of life or fortune. And, of course, there have been far more disasters caused by extreme weather than terrorist attacks. She pondered a long while, with a tea-tray in her hands, and at last suggested the, George got hold of the paper, and read us out the boating fatalities, and the, OBSERVING the steady fall of the barometer, Captain MacWhirr thought, "There's some dirty, She said, "All things are prospering with me, and I have only one wish, that there may be a heavy fall of rain, in order that the plants may be well watered." [100] In winter, severe cold weather can cause a surge in demand as people turn up their heating. She's making heavy weather of typing that letter. On Earth, most weather phenomena occur in the lowest level of the planet's atmosphere, the troposphere, just below the stratosphere. An example of weather is San Diego being sunny in January.
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. In numerical models, extremely small errors in initial values double roughly every five days for variables such as temperature and wind velocity. Weather is defined as to get through a situation or event positively. A major part of modern weather forecasting is the severe weather alerts and advisories that the national weather services issue in the case that severe or hazardous weather is expected. The main inputs from country-based weather services are surface observations from automated weather stations at ground level over land and from weather buoys at sea. These are academic or governmental meteorology organizations.
As proposed by Edward Lorenz in 1963, long range forecasts, those made at a range of two weeks or more, are impossible to definitively predict the state of the atmosphere, owing to the chaotic nature of the fluid dynamics equations involved. [before 900; Middle English (n.), Old English. See also atmosphere; climate; clouds; lightning; rain; snow; sun; thunder; wind, (countable and uncountable, plural weathers), (third-person singular simple present weathers, present participle weathering, simple past and past participle weathered). Within the United States, Air Force Weather provides weather forecasting for the Air Force and the Army. [23][24][25] Practical use of numerical weather prediction began in 1955,[26] spurred by the development of programmable electronic computers. [106], Similar to the private sector, military weather forecasters present weather conditions to the war fighter community. But all hope is not lost—we're here to help you learn the difference. [73] Some call this type of forecasting pattern recognition. Weather is described in terms of variable conditions such as temperature, humidity, wind velocity, precipitation, and barometric pressure. An example of weather is someone getting into an accident without injury or damage to their car. These days weather should never cause a commercial airliner to crash. showing effects of exposure to the weather. The irregularly spaced observations are processed by data assimilation and objective analysis methods, which perform quality control and obtain values at locations usable by the model's mathematical algorithms (usually an evenly spaced grid). These equations are initialized from the analysis data and rates of change are determined. Both were influential men in British naval and governmental circles, and though ridiculed in the press at the time, their work gained scientific credence, was accepted by the Royal Navy, and formed the basis for all of today's weather forecasting knowledge.[15][16].
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Say 'The weather is lovely'. [65] A bar can indicate a coming tropical cyclone. This time stepping procedure is continually repeated until the solution reaches the desired forecast time.
This expression is derived from the Eskimos, who purportedly measure the cold by determining how many dogs are necessary to keep them warm during the night. Copyright © 2011. [62] The larger the change in pressure, especially if more than 3.5 hPa (2.6 mmHg), the larger the change in weather can be expected. First recorded before 900; Middle English (noun), Old English, Dictionary.com Unabridged [35] Sites launch radiosondes, which rise through the depth of the troposphere and well into the stratosphere. Commercial and recreational use of waterways can be limited significantly by wind direction and speed, wave periodicity and heights, tides, and precipitation.
Published by Houghton Mifflin Harcourt Publishing Company. The forecasting of the weather within the next six hours is often referred to as nowcasting. the science that studies climate or climatic conditions. 1. weather - the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation; "they were hoping for good weather"; "every day we have weather conditions and yesterday was no exception"; "the conditions were too rainy for playing in … to endure such exposure in a specified manner: designating or of the side of a ship, etc. A group based at Camp Bastion provides forecasts for the British armed forces in Afghanistan. Do You Make These Simple Spelling Mistakes? weather-breeder A day of unseasonably or otherwise exceptionally magnificent weather, formerly thought to be a harbinger of an approaching storm; a daylong respite in a period of inclement weather. Weather forecasting of wind, precipitations and humidity is essential for preventing and controlling wildfires. 5 Chemical Weathering Examples and How They Occur. YourDictionary definition and usage example. The weather was warm and the command marched slowly, feeling its way as it went. the day-to-day meteorological conditions, esp temperature, cloudiness, and rainfall, affecting a specific place, (of a vessel) to roll and pitch in heavy seas, to carry out with great difficulty or unnecessarily great effort, on or at the side or part towards the wind; windward, to expose or be exposed to the action of the weather, to undergo or cause to undergo changes, such as discoloration, due to the action of the weather, to slope (a surface, such as a roof, sill, etc) so as to throw rainwater clear. Many fatal accidents are caused by drivers who are under the weather. [63], Along with pressure tendency, the condition of the sky is one of the more important parameters used to forecast weather in mountainous areas. In the United States, the biggest overlap between the pandemic and, The club will walk rain or shine, but in extreme. Different indices, like the Forest fire weather index and the Haines Index, have been developed to predict the areas more at risk to experience fire from natural or human causes. Be Careful!Weather is an uncountable noun. The approach of a line of thunderstorms could indicate the approach of a cold front. The weather is pretty warm year-round, though, hovering at around 75 degrees. Thus, a night which requires the warmth of three dogs is a frigid night indeed. The shutoffs that began late Monday are a fairly new and controversial practice, and their use last year triggered investigations while utilities defended them as necessary in the face of increasingly wild weather. [4] Chinese weather prediction lore extends at least as far back as 300 BCE,[5] which was also around the same time ancient Indian astronomers developed weather-prediction methods. to expose to the weather; dry, season, or otherwise affect by exposure to the air or atmosphere: to discolor, disintegrate, or affect injuriously, as by the effects of weather: These crumbling stones have been weathered by the centuries. Some weather channels have started broadcasting on live broadcasting programs such as YouTube and Periscope to reach more viewers. The state of the atmosphere at a particular time and place. : to expose to the action of the weather or atmosphere, as for airing, drying, or seasoning, to wear away, discolor, disintegrate, or otherwise change for the worse by exposure to the atmosphere, to slope (masonry, cornices, sills, etc.)
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