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Hail in the tropics occurs mainly at higher elevations. [20] Hail growth becomes vanishingly small when air temperatures fall below −30 °C (−22 °F), as supercooled water droplets become rare at these temperatures. [19] Around thunderstorms, hail is most likely within the cloud at elevations above 20,000 ft (6,100 m).
Formally, a wider study includes water falling as ice crystals, i.e. hail, sleet, snow (parts of the hydrological cycle known as precipitation). The aim of rainfall climatology is to measure, understand and predict rain distribution across different regions of planet Earth, a factor of air pressure , humidity , topography , cloud type and ...
Hail in this region occurs between the months of March and October during the afternoon and evening hours, with the bulk of the occurrences from May through September. Cheyenne, Wyoming , is North America's most hail-prone city with an average of nine to ten hailstorms per season. [ 67 ]
Hail Alley encompasses the central region of the U.S. — from Wyoming to Texas — where most hail storms occur. Three states stood out with dozens more counties than the other Hail Alley states ...
When the wet season occurs during the warm season, or summer, rain falls mainly during the late afternoon and early evening hours. The wet season is a time when air quality improves, [72] freshwater quality improves, [73] [74] and vegetation grows significantly. Soil nutrients diminish and erosion increases. [32]
Iowa is at risk of numerous severe storms including large hail, damaging winds and possibly tornadoes from 3 p.m. to 11 p.m. Tuesday.
Hail is a chunk of ice that can fall during thunderstorms. Unlike snow, sleet, freezing rain, and graupel, which occur in colder weather, hail is most common in warm conditions, during spring and ...
There is a distinct rainy season when tropical cyclones occasionally visit between November and April. The dry season lasts from May to October. [78] During El Niño events, precipitation averages about 10 percent above normal, while La Niña events lead to precipitation amounts which average close to 10 percent below normal. [79]