I came across an online article about “cloudbursts”. I would like to share some of the key points here. The article said that a cloudburst is a phenomenon in which extremely heavy rain falls rapidly over a limited area for a very short time. Honestly, I had never heard of this phenomenon before, but I thought it was similar to linear rainbands. The prefecture where I have lived previously experienced a natural disaster in 2014. Many houses were completely washed away and many people were killed by landslides. That is why I never forget the phenomenon of “linear rainbands”. However, they have different features, as shown below: Linear rainbands | Cloudbursts Duration: several hours | 30 minutes to an hour Area: dozens to hundreds of kilometres | a few to dozens of kilometres Rainfall: hundreds of millimetres | around 100 millimetres Although the affected areas differ in size, both can cause severe damage such as collapsed houses and flooded roads. In the case of linear rainbands, bands of cumulonimbus clouds remain in the same area for hours, bringing continuous heavy rain. On the other hand, a single cumulonimbus cloud can cause torrential rain in a limited area, which I think is similar to a sudden downpour known as a “guerrilla rainstorm” in Japan. Cloudbursts often occur in monsoon climates and mountainous regions. That is why they are frequently observed in the foothills of the Himalayas. Japan is also strongly affected by a monsoon climate, which brings the rainy season, typhoons, and heavy rainfall. Because of this, I am worried that this phenomenon could also occur in Japan. In fact, two typhoons have recently been moving across the country and causing damage in some regions. I sincerely hope they weaken as soon as possible.

I came across an online article about "cloudbursts" and would like to share some of the key points. The article described a cloudburst as a phenomenon that pours rain rapidly in a limited area over a very short period of time. Honestly, I had never heard of this phenomenon before, but I thought it sounded similar to liner rainbands. The prefecture where I used to live faced a natural disaster caused by linear rainbands in 2014. Many houses were completely washed away and many people were killed by the debris flow. That is why I will never forget the phenomenon "linear rainbands". However, linear rainbands have different features. For example, linear rainbands can last for several hours, while cloudbursts last for 30 minutes to an hour. Linear rain bands can affect dozens to hundreds of kilometers, while cloudbursts typically affect a few to dozens of kilometers. Cloubursts can produce around 100 milimeters of rainfall, but linear rain bands can produce hundreds of milimeters. Although the affected area size is different, the houses and roads in those areas will suffer heavy damage such as collapsed houses and flooded roads. In the case of liner rainbands, many thunderheads spread in a belt-like pattern and stay in the same location for hours. On the other hand, if one thunderhead causes torrential rain in limited area, I guess it might be similar to a sudden downpours called "Guerrilla Rainstorms" in Japan. Cloudbursts often occur in monsoon climates and mountainous regions. That's why cloudbursts are often observed in the foothills of the Himalayas. Japan is also strongly affected by a monsoon climate and it often brings the rainy season, typhoons, and torrential rain to Japan. So, I'm worried about whether the phenomenon will happen in Japan as well. Actually, two typhoons have been moving across the country and they were wreaking havoc in some regions. I really hope the typhoon diminishes in strength as soon as possible.