The Japan Meteorological Agency issued a forecast warning on Tuesday regarding the potential for linear precipitation zones in the Kinki and Tokai regions [1].
These weather patterns can cause rain to concentrate in specific areas for extended periods, significantly increasing the risk of sudden and severe flooding or landslides. The warning comes as Typhoon No. 6, which previously struck Okinawa and Amami [1], moves north toward the southern parts of western Japan [1].
The agency released the predictive information at 1:01 p.m. [1]. According to the agency, the risk of heavy rain disasters may increase rapidly across the Tokai, Kinki, Shikoku, and southern Kyushu and Amami regions [2].
Specific timelines for the predicted linear precipitation zones vary by prefecture. In Wakayama Prefecture, the agency expects the risk to rise from late Tuesday night through the early hours of Wednesday [3]. Mie Prefecture faces a similar window from late Tuesday night through Wednesday morning [3].
The danger is expected to shift eastward as the system progresses. Aichi Prefecture is projected to see these conditions from early Wednesday morning through the morning hours [3]. Finally, Shizuoka Prefecture is warned of potential linear precipitation zones starting early Wednesday morning and lasting until before noon [3].
Local authorities are urging residents to remain vigilant as the typhoon's influence creates unstable atmospheric conditions. The agency said that the combination of the typhoon's moisture and local geography makes the formation of these intense rain bands more likely [1].
“The risk of heavy rain disasters may increase rapidly across the Tokai, Kinki, Shikoku, and southern Kyushu and Amami regions.”
The issuance of linear precipitation zone forecasts indicates a high probability of localized, extreme rainfall that can overwhelm drainage systems and trigger landslides more quickly than standard heavy rain. Because Typhoon No. 6 is funneling significant moisture into western Japan, the timing of these bands across different prefectures suggests a moving corridor of high risk that requires coordinated emergency responses across multiple regional governments.
