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雷暴正常的热浪?

据我所知,热浪形成当高压系统建立在一个区域。这形成一种“帽”在受灾地区防止空气上升和冷却,然后回到地表。这导致一个连续积累的热量导致热浪。当热浪结束,我假设意味着高压系统与另一个低压混合系统。当两个系统这样的混合和水分我相信有雷暴可能形式。

我的问题是如果这个推理是正确的,如果雷暴是常见的热浪结束后的地区有一些空气中水分的热浪。

换句话说,在大气中究竟发生了什么,当一个热浪需求,这会导致机会雷暴的区域空气有水分?

回答

雷暴的形成所必需的原料>…水分,增加不稳定的空气(空气持续上涨时推动),推动和提升机制提供”。”([源][1])以及>…水分、不稳定和提升。此外,还有第四个成分(风切变)…([源][2]),他们依靠地方、地区或overregional天气情况,可以有季节性因素,可能会被绑定到一个或多个循环模式或只是取决于天气;-)雷暴形成*孤立*,例如在下午当白天条件下已经建立了从不同的地面和* *发生不稳定类型,冷锋,日照时间/强度/角或“滴”的冷空气在对流层高。这些都是(Orograhic雷暴或气团雷暴)[3]。他们通常(但不总是)短暂的(小时),本地和发生在下午,持续到晚上。或雷暴形成沿*额线*冷分开暖气团进入温暖,潮湿的空气,使其上升到伟大的高度开始凝结。这种现象被称为[冷锋][4]或在一个特殊形式飑线([雷达图像][5])和不稳定在这里空气温度和湿度的差异的结果在一个相对狭窄的额。额叶系统有很大的长度(100年代或很少数千公里)和长距离移动迅速。 These frontal systems can be part of the cylones in the temperate zones (not the tropical cyclones, those are different and I leave them out here, though they house embedded thunderstorms as well) and move with the prevailing western drift there. Such a frontal passage usually doesn't last long, comes with a significant drop in air temperature when passing overhead and a significant weather change and veering wind, on the northern hemisphere. All these forms are expressions of [convective][6] weather, vertical movement of air caused by labilization. Otoh, heat waves are frequently simply the result of dry and hot air being transported by [advection][7], which is not bound to a local scale alone. For example the Sahara air to central Europe. This air is hot and very dry, and it simply lasts until the weather situation changes and different airmasses come along, e.g. of Atlantic origin. There won't be thunderstorms, then, because there's not enough moisture. Such a weather situation frequently happens on the Canaries (just as an example), it leads to a hot and extremely dry atmosphere until great height, with a cool layer underneath, for example 23°C at sea level, ~30° at 500m ASL with an inversion in between, and 35°C around the summits between 2,000 and 2,500m ASL. This is absolutely stable and not even slightly conducive for the formation of convection or any kind of precipitation (except sand :-/). tl.dr: No, it is not normal, but it can happen. There is no general rule and it is not the absolute temperature that causes thunderstorms, but differences in temperature and moisture that cause labilization and thus convection. [1]: https://www.nssl.noaa.gov/education/svrwx101/thunderstorms/ [2]: https://www.weather.gov/source/zhu/ZHU_Training_Page/thunderstorm_stuff/Thunderstorms/thunderstorms.htm [3]: https://scied.ucar.edu/learning-zone/storms/thunderstorms [4]: https://en.wikipedia.org/wiki/Cold_front [5]: https://www.nssl.noaa.gov/education/svrwx101/thunderstorms/types/ [6]: https://www.metoffice.gov.uk/weather/learn-about/weather/how-weather-works/what-is-convection [7]: https://www.weatheronline.co.uk/reports/wxfacts/Advection.htm

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\ begingroup美元所以热浪不一定导致雷暴但雷暴可能标志着热浪的结束,因为这意味着现在气团与水分,不稳定,提升所以稳定干燥的热空气可以消散。 \ endgroup美元
- - - - - -mihirb
2020年8月18日15:54

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