Event
The Niigate Regional Meteorological Observatory issued a Level 4 landslide disaster warning at 8:15 am on July 26 for Nagaoka City, Kashiwazaki City, and Kariwa Village. The warning indicates a very high risk of landslides, necessitating strict vigilance. The observatory is monitoring evacuation information from local authorities.
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The Niigata Regional Meteorological Observatory has elevated the disaster alert status to Level 4, indicating a very high probability of landslides in specific districts of Niigata Prefecture.
Background
The Niigata Regional Meteorological Observatory issued a Level 4 landslide disaster warning at 8:15 am on July 26, 2026, for Nagaoka City, Kashiwazaki City, and Kariwa Village. This alert signifies a very high risk of landslides, requiring residents to exercise strict vigilance and take immediate safety measures. The observatory is currently monitoring evacuation data from local municipal authorities. While the headline of the event digest incorrectly included Niigata City, the official warning applies specifically to the three aforementioned locations. This event occurs against a backdrop of broader seasonal severe weather risks in Japan, including recent line-shaped precipitation bands in other regions.
The Niigata Regional Meteorological Observatory issued a Level 4 landslide disaster warning at 8:15 am on July 26, 2026, for Nagaoka City, Kashiwazaki City, and Kariwa Village. This alert signifies a very high risk of landslides, requiring residents to exercise strict vigilance a
Fact cards
Key entities: Niigate Regional Meteorological Observatory, Nagaoka City, Kashiwazaki City, Kariwa Village, Niigata Prefecture.
What does a Level 4 landslide disaster warning mean? It indicates a very high risk of landslides, necessitating strict vigilance and immediate safety actions, though it is one level below the highest Level 5 (imminent life threat). Which specific areas are under the warning? Naga
June 3, 2026, 01:13: Japan Meteorological Agency issues a 'linear rainband imminent prediction' warning for southern Tokushima, Mie, and Wakayama. July 26, 2026, 08:15: Niigata Regional Meteorological Observatory issues a Level 4 landslide disaster warning for Nagaoka City, Kashi
Timeline
Japan Meteorological Agency issues a 'linear rainband imminent prediction' warning for southern Tokushima, Mie, and Wakayama.
Niigata Regional Meteorological Observatory issues a Level 4 landslide disaster warning for Nagaoka City, Kashiwazaki City, and Kariwa Village.
Observatory monitors evacuation information from local authorities in the affected areas.
FAQ
It indicates a very high risk of landslides, necessitating strict vigilance and immediate safety actions, though it is one level below the highest Level 5 (imminent life threat).
Nagaoka City, Kashiwazaki City, and Kariwa Village in Niigata Prefecture.
No, the warning specifically lists Nagaoka, Kashiwazaki, and Kariwa; Niigata City is a separate municipality not listed in this alert.
Level 5, which indicates that lives are at imminent risk and immediate evacuation is required.
It indicates a very high risk of disaster, requiring immediate life-saving actions and strict vigilance.
Nagaoka City is under a Heavy Rain Warning, while Nagaoka, Kashiwazaki, and Kariwa are under a Landslide Disaster Warning.
There is a very high risk of flooding in low-lying areas and river overflows.