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Thundersnow, also known as a winter thunderstorm or a thundersnow storm, is a thunderstorm in which snow falls as the primary precipitation instead of rain. It is considered a rare phenomenon. [ 1 ] It typically falls in regions of strong upward motion within the cold sector of an extratropical cyclone .
The first is astronomical winter, which has the season starting on a date known as the winter solstice, often on or around December 21. The season lasts until the spring equinox, which often occurs on or around March 20. The second has to do with meteorological winter which varies with latitude for a start date. [1]
In the area around Memphis, Tennessee and across the state of Mississippi, there are two rainfall maxima in the winter and spring. [44] [45] Across Georgia and South Carolina, the first of the annual precipitation maxima occurs in late winter, during February or March. [46] [47] Alabama has an annual rainfall maximum in winter or spring and a ...
Discontinued on October 2, 2017; a winter weather advisory for lake-effect snow is now issued instead. Freezing rain advisory WSW (alt.: freezing drizzle advisory) – Freezing rain or freezing drizzle producing ice accretion of up to 1 ⁄ 4 inch (6.4 mm) that may cause significant travel impairments is expected or occurring. Discontinued on ...
A winter storm is an event in which wind coincides with varieties of precipitation that only occur at freezing temperatures, such as snow, mixed snow and rain, or freezing rain. In temperate continental and subarctic climates , these storms are not necessarily restricted to the winter season, but may occur in the late autumn and early spring as ...
Get the Boydton, VA local weather forecast by the hour and the next 10 days.
Freezing rain develops when falling snow encounters a layer of warm air aloft, typically around the 800 mbar (800 hPa; 80 kPa) level, causing the snow to melt and become rain. As the rain continues to fall, it passes through a layer of subfreezing air just above the surface and cools to a temperature below freezing (0 °C or 32 °F or 273 K).
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