What is rain?
Rain is a type of precipitation in which water droplets fall from the sky and onto the ground. The main types of rain are: light rain, moderate rain, heavy rain, and thunderstorms.
Light rain is defined as rainfall that is less than 0.5 inches per hour. This type of rain is usually not heavy enough to cause major problems or discomfort.
Moderate rain is defined as rainfall that is between 0.10 and 0.30 inches per hour. This type of rain can cause some minor problems, such as making it difficult to drive, but generally does not cause major issues.
Heavy rain is defined as rainfall that is greater than .30 inches per hour. This type of rain can cause significant problems, such as flooding and road closures.
Thunderstorms are a type of rain that is accompanied by thunder and lightning. These storms can be very dangerous and should be avoided if possible. By avoiding means to stay indoors and away from windows. If you are caught outdoors, try to find a low-lying area such as a ditch or culvert to take shelter in.
What are mudflows?
Mudflows are a type of water flow that contains a lot of silt and other particles that make it very thick and viscous. This means that it doesn’t flow as easily as water, and can only deposit the heaviest part of its load. This can cause irreversible damage to the land it flows over, since the sediments can become entangled and difficult to remove. Mudflows are particularly dangerous because they can happen suddenly and with little warning, making them hard to avoid.
Usually occurring on steep slopes with not enough vegetation to prevent rapid erosion, mudflows are fast-moving landslides that can occur anywhere. Mudflows can also be caused by heavy rainfall in a short period of time and easily erodible source materials. There is no doubt that mudflows can be dangerous, rushing down the mountainside at speeds of up to 100 kilometers per hour (60 miles per hour). In some cases, they can even result in death or serious property damage. During mudflows, boulders as large as houses have been moved.
How does rain causes mudflow?
Rain can cause mudflow in a few ways. One is by increasing the amount of water in the ground, which can make the soil more saturated and less able to support the weight. Another way is if the rainwater washes away vegetation or other materials that were holding the soil in place. Heavy rains can also create new channels for water to flow, which can lead to mudflow. In general, any time there is more water than usual in the ground or flowing over the surface, there is an increased risk of mudflow.