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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). [20] The National Weather Service issues heat advisories and excessive heat warnings when it expects unusual periods of hot weather.
temperate – with moderate temperatures, weather, or climate; neither hot nor cold; mean annual temperature between 0 – 20 deg C. thermal mass – (architecture) any mass that can absorb and store heat and can therefore be used to buffer temperature change. Concrete, bricks and tiles need a lot of heat energy to change their temperature and ...
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 ...
Deviation of one-degree temperature for one day from an arbitrary standard, usually the long-term average temperature for a place. [2] dell A small, secluded hollow, usually within a grassy, park-like, partially wooded valley. delta A landform at the mouth of a river where the main stem splits up into several distributaries. It is formed from ...
Drought may be a term you have heard quite often, but the definition of a drought is rather complex. While most things are measured by the presence of something, like rainfall, snow or winds ...
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
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 ...