The water level of the Shibuya River in Tokyo is rising rapidly, and the flood risk information is equivalent to alert level 4 – Weather News

2024-07-06 08:42:00

2024/07/06 17:42 Weather News

The Shibuya River in Tokyo has seen its water level rise due to heavy rain, and a flood risk warning (equivalent to Alert Level 4) has been issued.

Rivers in urban areas are dangerous because water levels rise quickly. Please stay away from rivers as the currents are strong and there is a risk of flooding in the area.
» River level/live camera
» Nimbus Radar

Rainfall increases, beware of landslides

The risk of landslides around the Manosei River basin is extremely high due to continued heavy rains.

As of 8:10 a.m., Kagoshima Prefecture and the Kagoshima local weather station are jointly issuing landslide warning information for the following areas.

Kagoshima City, Makurazaki City, Akune City, Ibusuki City, Satsuma Kawauchi City, Satsuma Kawauchi City, Koshikishima Hioki City, Kushikushikino City, Minamisatsuma City, Minamikyushu City, Aira City, Satsuma Town

If you live in an area prone to landslides, such as near cliffs or rivers, please evacuate as soon as possible and pay attention to evacuation advisories and other information announced by municipalities, towns and villages.

After the special warning was changed to a warning, the rain continued to fall intermittently

A special heavy rain warning was issued for Hiroshima yesterday, the 13th (Friday), but it has now been changed to a warning. Even following the warning was issued, the rain continued to increase.

Even following the rain stops, water levels can persist for hours to days, so don’t go out and see the water even if you’re concerned regarding the situation. In addition, tributaries may not drain properly, causing rising water levels and flooding, so vigilance is needed even in areas far from the main stream.

People in Hiroshima Prefecture need to be alert to heavy rain today. A calm is expected tomorrow, but then intermittent rainfall is forecast for the first half of next week.

Affected by heavy rain, there will be heavy rain in some areas

Rain clouds developed rapidly in Tokyo in the followingnoon, and some areas encountered heavy rains of more than 20 mm within 10 minutes.

On the Shibuya River, the water level observed at the Shibuya Bridge Water Level Observation Station in Shibuya District was 4.64m, exceeding the flood danger level standard and only 144cm away from the flood level.

Even following short periods of rainfall, water levels in urban rivers can rise rapidly. Even if you are concerned regarding the conditions, please do not go near the river as the water flows quickly and there is a risk of flooding in the area.
» Warning and advisory advisory status

Straight rainbands cause heavy rain to continue

Oita Prefecture analyzed a linear precipitation zone, with heavy rainfall of 110 millimeters per hour in many places. Intermittent heavy rain is likely to continue this morning.

Even if the rain stops, water levels will remain high for several hours, so don’t go looking at the water even if you’re concerned regarding the situation. In addition, tributary rivers may not drain properly, leading to rising water levels and the risk of flooding, so vigilance is needed even in areas far away from larger rivers.

If you live in an area where flooding is expected, follow local government evacuation instructions and do not wait for a Level 5 alert to evacuate to a safe location. If you are unsure whether the route to an evacuation center is safe, secure the upper floors of your home and away from slopes.

Reference materials, etc.

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