ISHIKAWA — The agency issued a Level 5 heavy rain warning for parts of Ishikawa and Toyama prefectures, signaling life-threatening conditions. Weather authorities called on more than 380,000 people to evacuate to safety in Ishikawa and Toyama prefectures. Hundreds of thousands of people were evacuated in Ishikawa and Toyama as the situation deteriorated.

In Ishikawa prefecture, 270 homes in three municipalities were flooded. Buildings were felled and damaged by flash floods and mudslides across the affected regions. Several rivers burst their banks in Ishikawa and Toyama, contributing to the widespread inundation.

Rainfall totals reached extreme levels during the event. In Himi, Toyama, rainfall reached extreme levels within 24 hours. The Japan Meteorological Agency predicted up to 20 centimetres (7.8 inches) of rain in the Kaga and Noto areas through Friday morning. The agency also issued landslide warnings for Ishikawa and Toyama prefectures to alert residents to additional risks.

What's New

Weather authorities called on more than 380,000 people to evacuate to safety in Ishikawa and Toyama prefectures. The Japan Meteorological Agency (JMA) said that the current unstable weather is due to warm air from a front interacting with cold air from a low pressure system over the Hokuriku region through Friday. In Ishikawa prefecture, 270 homes in three municipalities were flooded. The Japan Meteorological Agency predicted up to 20 centimetres (7.8 inches) of rain in the Kaga and Noto areas through Friday morning.

Why It Matters

The scale of the evacuation order indicates the severity of the threat posed by the extreme rainfall. With more than 380,000 people instructed to leave their homes, the event represents a major disruption for residents in Ishikawa and Toyama. The flooding of 270 homes in just three municipalities in Ishikawa prefecture demonstrates the concentrated impact of the downpours on residential areas.

The meteorological conditions driving this event involve a complex interaction between warm and cold air masses. The Japan Meteorological Agency attributed the instability to warm air from a front meeting cold air from a low pressure system over the Hokuriku region. This pattern is expected to persist through Friday, maintaining the risk of further heavy rain and associated hazards such as landslides and river overflows.

A significant tornado developed in the village of Pomas, sou