THE CHALLENGE OF FORECASTING HEAVY RAIN AND FLOODING THROUGHOUT THE EASTERN REGION OF THE NATIONAL WEATHER SERVICE .1. CHARACTERISTICS AND EVENTS
THE CHALLENGE OF FORECASTING HEAVY RAIN AND FLOODING THROUGHOUT THE EASTERN REGION OF THE NATIONAL WEATHER SERVICE .1. CHARACTERISTICS AND EVENTS
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DOI：
10.1175/1520-0434(1995)010
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发表时间：
1995-03-01
影响因子：
2.9
通讯作者：
FREY, DS
中科院分区：
文献类型：
--
作者：
LAPENTA, KD;MCNAUGHT, BJ;FREY, DS
美国东部和东南部的天气预报员特别关注暴雨和洪水。在本文中，独特的天气尺度和中尺度天气条件和地形因素的组合，有助于和增强对流产生的山洪和河流洪水的描述和分类。开发了一个天气尺度洪水事件分类系统，然后用于确定感兴趣区域主要洪水的分布（按月份和天气尺度天气系统）。文中还列举了天气尺度天气系统引起的洪涝灾害实例，讨论了引起洪涝灾害的中尺度暴雨过程的特征。地形和地理因素在该地区，在这些事件中发挥作用，描述，沿着中尺度，山洪事件的例子。最后，洪水所产生的暖顶雷暴，在整个东部和东南部构成了一个独特的和具有挑战性的预测问题，进行了描述，并提供了一个例子。
Heavy rain and flooding are of particular concern to forecasters throughout the eastern and southeastern United States. In this paper, the unique combination of synoptic-scale and mesoscale weather conditions and topographic factors that contribute to and enhance convectively produced flash flooding and river flooding are described and categorized. A classification system for synoptic-scale flooding events is developed, which is then used to identify the distribution (by month and synoptic-scale weather system) of major floods in the region of interest. Also, examples of flooding caused by synoptic-scale weather systems are presented.Characteristics of mesoscale heavy-rain events that result in flooding are discussed. Topographical and geographical factors in the region, which play a role in these events, are described, along with examples of mesoscale, flash flood events. Finally, floods produced by warm-top thunderstorms, which pose a unique and challenging forecast problem throughout the east and southeast, are described and an example is provided.