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A period of weather characterized by excessively high temperatures, which may or may not be accompanied by high humidity or by drought. Very hot weather is often only referred to as a heat wave if the temperature is abnormal relative to the typical climate for a given location during a given season. Contrast cold wave. heavy snow warning
A heat storm is a Californian term for an extended heat wave. Heat storms occur when the temperature reaches 100 °F (37.8 °C) for three or more consecutive days over a wide area (tens of thousands of square miles). [19] The National Weather Service issues heat advisories and excessive heat warnings when it expects unusual periods of hot weather.
The average and variations of weather in a region over long periods of time, which can be related to surface variables such as temperature, precipitation and wind. climate change Includes both global warming and its effects, such as changes to precipitation, rising sea levels, and impacts that differ by region. [1] climate change denial
Red flag criteria is generally when relative humidity is at 15% or less, combined with sustained winds and/or gusts of 25 mph or greater. Both of these conditions must occur simultaneously for at ...
Beyond more common weather terms lies a field of rarely used but humorous monikers to describe the weather around us. Some were just invented, some have been around for hundreds of years. Here are ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Long-term weather pattern of a region For other uses, see Climate (disambiguation). Atmospheric sciences Atmospheric physics Atmospheric dynamics category Atmospheric chemistry category Meteorology Weather category portal Tropical cyclone category Climatology Climate category Climate ...
The National Weather Service defines drought as, “A deficiency of moisture that results in adverse impacts on people, animals, or vegetation over a sizable area.”
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [1] On Earth , most weather phenomena occur in the lowest layer of the planet's atmosphere , the troposphere , [ 2 ] [ 3 ] just below the stratosphere .