Saitama Prefecture Iruma River basin is flooded River warning level 4 equivalent flood danger information announced –Weathernews

2022/07/12 23:14 Weathernews

The Koazegawa and Tokigawa rivers in the Iruma River basin in Saitama Prefecture have been flooded, and flood danger information[equivalent to alert level 4]has been announced.

The water levels near the “inundation danger water level” are the Hachimanbashi Water Level Observatory (Kawagoe City) on the Koaze River and the Nomoto Water Level Observatory (Higashimatsuyama City) on the Toki River. There is a risk of flooding in Kawajima Town and Yoshimi Town.

Water has already begun to overflow in small and medium-sized rivers. Be wary of flooding.
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Be wary of sediment-related disasters that increase rainfall

Around the Manose River basin, the risk of sediment-related disasters is extremely high due to heavy rainfall.

As of 8:10, Kagoshima Prefecture and Kagoshima Local Meteorological Observatory are jointly announcing sediment-related disaster warning information in the following areas.

Kagoshima City Makurazaki City Akune City Satsuma Kawauchi City Satsuma Kawauchi City Satsuma Hioki City Ichikikushikino City Minami Satsuma City Minami Kyushu City Aira City Satsuma Town

If you live in an area where sediment disasters may occur, such as near a cliff or river, please try to evacuate as soon as possible and pay attention to the information such as evacuation advisories issued by the municipalities.

It rains intermittently even after the special warning is switched to the warning

In Hiroshima City, a heavy rain special warning was announced yesterday on Friday, 13th, but it has been switched to the warning. Even after switching to the warning, the rain is increasing intermittently.

Even after the rain stops, the water level will continue to be high for several hours to several days, so please do not go to see it even if you are worried about the situation. In addition, even in tributary rivers, drainage may not be possible and flooding or flooding may occur, so caution is required even in places away from the main stream.

In Hiroshima prefecture, it is necessary to be cautious about heavy rain today. It is expected to be in a lull tomorrow, but then it is expected to rain intermittently in the first half of next week.

Record heavy rain in Saitama prefecture

At AMeDAS Hatoyama in Hatoyama Town, Saitama Prefecture, precipitation of 263.5 mm was observed in 3 hours until 20:00. This is the highest value in the history of observation in Hatoyama, and at the same time, it is the second highest value in the history of AMeDAS in the Kanto region excluding the islands.

After this, there is a risk of heavy rain locally in Saitama Prefecture and Tokyo until dawn.

There may be a disaster that you have never experienced before. Please be sure to ensure your safety.

Reference materials, etc.