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What is the rainy season in the united states and how do they do flood control?

The rainy season in the United States is mainly concentrated in winter, especially during periods of frequent atmospheric river phenomena. The atmospheric river refers to a narrow column of air filled with water vapor that extends into the air like a river, connecting Hawaii and the west coast of the United States. In winter, water vapor from the Pacific can be transported along this air column to the Rocky Mountains, and when it encounters terrain obstacles, it often causes intense rainfall. This type of rainfall not only affects California, but also the surrounding areas, resulting in heavy rain and snow weather.

In order to cope with the flood risk during the rainy season, the United States has taken a series of waterproofing measures:

Technical guidance and local cooperation: The US Army Corps of Engineers mainly provides technical guidance to the local area in emergency reinforcement work, and jointly negotiates with local governments to handle dangerous situations. Both parties jointly form a flood control expert group to conduct patrol inspections, timely discover and handle dangerous situations.

Federal Emergency Management: The Federal Emergency Management Agency is responsible for rapidly assessing the governor's requests and providing federal assistance when necessary. This includes providing disaster relief funds, coordinating with various federal government agencies to provide personnel, materials, and financial support.

Insurance measures: Due to floods being one of the most severe natural disasters in the United States, the country was the first in the world to establish a mandatory national flood insurance system. This helps alleviate the economic losses of individuals and businesses in flood disasters.

Personal protection measures: In terms of personal protection, Americans usually do not use umbrellas, but choose waterproof clothing such as jackets to cope with rainstorm, because umbrellas may not provide effective protection in strong winds.

Some flood control companies could provide freestanding flood barrier, temporary flood boxwall, residential flood barrier as well as some water active flood bag and instant sandbags, etc.

These measures collectively constitute a comprehensive strategy for the United States to address the risk of rainy season floods, aimed at reducing property damage and casualties.