What direction is the wind coming from if the tail is going south west?

In scientific and worldwide usage, wind direction is always stated as the direction from which the wind blows. For example, a south wind blows from the south to the north and a southwest wind blows from southwest to northeast. The National Weather Service and all U.S. media adhere to the international convention.

Explanation:

velocity and height

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.