[77], Rainbands within tropical cyclones are curved in orientation. Copyright © 2020 Daily Writing Tips . [80] Rain becomes acidic primarily due to the presence of two strong acids, sulfuric acid (H2SO4) and nitric acid (HNO3). During the fall, winter, and spring, Pacific storm systems bring most of Hawaii and the western United States much of their precipitation. snowdrift noun. [148] The eastern half of the contiguous United States east of the 98th meridian, the mountains of the Pacific Northwest, and the Sierra Nevada range are the wetter portions of the nation, with average rainfall exceeding 760 mm (30 in) per year. Cirrus clouds are sometimes called mares' tails because they look like the tails of a horse. On America's East Coast, rain that is derived from the Atlantic Ocean typically has a pH of 5.0–5.6; rain that comes across the continental from the west has a pH of 3.8–4.8; and local thunderstorms can have a pH as low as 2.0. It is a small peaked roof canopy shaped thing which sticks out from the side of the house or from the roof just above the door. It has betrayed man and is now the most destructive arrow in nature’s quiver. [10], The main ways water vapor is added to the air are: wind convergence into areas of upward motion,[11] precipitation or virga falling from above,[12] daytime heating evaporating water from the surface of oceans, water bodies or wet land,[13] transpiration from plants,[14] cool or dry air moving over warmer water,[15] and lifting air over mountains. [133] According to Jewish tradition, in the first century BC, the Jewish miracle-worker Honi ha-M'agel ended a three-year drought in Judaea by drawing a circle in the sand and praying for rain, refusing to leave the circle until his prayer was granted. Rain can also begin as ice crystals that collect each other to form large snowflakes. n - C8WEYM from Alamy's library of millions of high resolution stock photos, illustrations and vectors. In the air, water vapor cools and returns to a liquid form. [88] A steppe is a dry grassland. [33] The air density dependence of the maximum raindrop diameter together with fossil raindrop imprints has been used to constrain the density of the air 2.7 billion years ago. [139], The northern half of Africa is occupied by the world's most extensive hot, dry region, the Sahara Desert. The most commonly used form of the Köppen classification has five primary types labeled A through E. Specifically, the primary types are A, tropical; B, dry; C, mild mid-latitude; D, cold mid-latitude; and E, polar. [83] A tropical savanna is a grassland biome located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes, with rainfall between 750 and 1,270 mm (30 and 50 in) a year. It can also be the focus of locally heavy precipitation, with thunderstorms possible if the atmosphere along the front is unstable enough for convection. 32. thundershower: a brief storm accompanied by lightning and thunder You'll also get three bonus ebooks completely free. This process is temperature dependent, as supercooled water droplets only exist in a cloud that is below freezing. Download this stock image: Laburnum, also called golden chain or golden rain, is a genus of two species of small trees in the subfamily Faboideae of the pea family Fabaceae. downpour noun. A Climatological and composite study of cold season banded precipitation in the Northeast United States. [71], Rainbands spawned near and ahead of cold fronts can be squall lines which are able to produce tornadoes. 14. mizzle: a very fine rain ⟩ Small sweet served in the afternoons, as an afternoon coffee. Canopy: rainforests have a canopy, which is the layer of branches and leaves formed by closely spaced rainforest trees some 30 meters (100 feet) off the ground. Find Kamakura, Japan - July 1, 2015 : View of a small train station called Gokurakuji Station. Verse by verse, chapter by chapter, book by book, author by author, they untwist and unwind and pry apart.