As Typhoon 15 barrels across Japan’s main islands on September 5, 2025, residents and visitors in eastern and central regions are urged to stay vigilant amid forecasts of intense rainfall and potential disasters. This powerful storm, which has already traversed parts of the Kii Peninsula, is set to make its closest pass to the Kanto area this afternoon, bringing with it active rain bands that could trigger flooding and landslides. For international audiences tracking global weather events or planning trips to Japan, this update provides a comprehensive overview based on the latest meteorological data. We’ll explore the typhoon’s current path, rainfall expectations, associated risks, and essential preparation tips to ensure safety while respecting Japan’s resilient approach to natural challenges.
Tracking Typhoon 15’s Movement Through Central Japan
On this morning of September 5, Typhoon 15 was located near Gojo City in Nara Prefecture around 10 AM, advancing northeast at roughly 45 kilometers per hour. Originating from the warm Pacific waters, the storm has maintained its strength as it crosses the Japanese archipelago, a common route for late-summer typhoons influenced by seasonal monsoon patterns. By afternoon, it will skirt closest to the Kanto region, encompassing major urban hubs like Tokyo and surrounding prefectures.
What sets this typhoon apart is the combination of its moist, tropical air mass with a stationary front extending from the Hokuriku area to Tohoku. This synergy has already unleashed extremely intense downpours across eastern and northern Japan, with radar showing concentrated rain clouds clinging to the storm’s eastern flank. As of 11 AM, these clouds were draped over the Tokai and Kanto regions, painting a picture of widespread precipitation that could disrupt daily life in one of the world’s most populous areas.
Peak Rainfall Periods and the Threat of Linear Precipitation Bands
The heavy rain associated with Typhoon 15 is reaching its climax today, demanding heightened awareness. In the Tokai region, including areas like Aichi and Shizuoka, the most intense showers are occurring now and will persist until around 2 PM, with vigorous cloud formations overhead. Shifting eastward, Kanto’s peak is anticipated between 2 PM and 6 PM, featuring thunderstorms and bursts of very heavy or even ferocious rain that may continue intermittently.
A critical concern is the potential formation of linear precipitation bands—elongated zones of thunderstorms that can stall over specific locales, leading to catastrophic water accumulation. These bands could dramatically escalate disaster risks in several prefectures:
- Mie, Gifu, and Aichi: Through the afternoon of September 5.
- Shizuoka: Extending into the evening.
- Kanagawa, Yamanashi, and Nagano: Also until evening.
- Ibaraki, Saitama, Chiba, Tokyo, and the Izu Islands: From afternoon into early night.
Such phenomena are not uncommon in Japan’s varied topography, where mountains can enhance rainfall intensity. Forecast models predict 24-hour accumulations ending at noon on September 6 as follows: up to 150 millimeters in Tokai, 200 millimeters in Kanto-Koshin, and 80 millimeters in Tohoku. To put this in perspective for global readers, 200 millimeters equates to over half a foot of rain, enough to overwhelm drainage systems in densely built environments like Tokyo.
Broader Hazards: From Landslides to Transportation Disruptions
Beyond the deluge, Typhoon 15 poses multifaceted threats that underscore the importance of comprehensive alerts. Soil saturation increases the likelihood of landslides, particularly on unstable slopes common in Japan’s hilly landscapes. Low-lying zones and underground structures, such as subway stations in metropolitan areas, face inundation risks, while rivers could surge and overflow, endangering nearby communities.
Authorities emphasize avoiding hazardous areas like steep inclines or swollen waterways, a practice rooted in Japan’s historical experiences with natural calamities. As of 11 AM today, the Tokaido Shinkansen line has halted services in certain segments, highlighting potential widespread impacts on rail, road, and air travel. These disruptions can ripple through the economy, affecting everything from commuter routines in bustling cities to supply chains for exports like electronics and automobiles.
Culturally, Japan views these events through a lens of “gaman” (endurance), fostering community solidarity. International visitors might notice how locals calmly stock supplies or assist elders, reflecting a society that integrates disaster education into school curriculums and urban planning.
Essential Safety Measures for Residents and Travelers
Preparation is key to weathering Typhoon 15 safely. Start by monitoring updates from reliable sources like the Japan Meteorological Agency (JMA) or English-language apps such as Safety Tips, which provide real-time alerts. Stock emergency kits with water, non-perishable foods, flashlights, and portable chargers—essentials that align with Japan’s emphasis on self-reliance during crises.
If in affected regions, secure loose outdoor items to prevent wind damage, and heed evacuation notices broadcast via sirens or mobile notifications. For those exploring Japan’s cultural sites, like temples in Nara or hot springs in Yamanashi, postpone outdoor activities and opt for indoor alternatives, such as museums showcasing samurai history or tea ceremonies that embody tranquility amid turmoil.
Travelers should review insurance policies for weather-related coverage and consider rerouting plans. Japan’s efficient public transport often rebounds quickly post-storm, but patience is advised. By embracing these steps, you contribute to the collective safety net that has helped Japan minimize losses in past events.
Frequently Asked Questions (FAQs)
When will the heavy rain from Typhoon 15 subside in Kanto?
The peak intensity is expected between 2 PM and 6 PM on September 5, with risks lingering into early night. Overall alerts may extend until September 6, depending on the storm’s eastward shift. Always check JMA for the latest.
What should I do if a linear precipitation band forms near my location?
Evacuate to higher ground immediately if alerts indicate high risk. These bands can cause rapid flooding, so monitor radar apps and avoid driving through waterlogged areas to prevent accidents.
How does Typhoon 15 compare to previous storms in Japan?
While not the strongest on record, its path through populated central regions mirrors events like Typhoon Hagibis in 2019, which caused extensive flooding. Climate trends suggest increasing intensity, prompting enhanced forecasting.
Are there any cultural practices in Japan for typhoon preparation?
Many households perform “bosai” (disaster prevention) drills, and communities share resources. Festivals may be rescheduled, reflecting a balance between tradition and safety, which international visitors can appreciate by participating in local awareness events.
In wrapping up, Typhoon 15’s traverse across Japan on September 5, 2025, highlights the nation’s proactive stance against nature’s forces. By staying informed and prepared, we can mitigate impacts and emerge stronger. For ongoing updates, consult official channels, and remember: safety fosters the harmony Japan cherishes.
