Tosa City

Rain radar, rainfall and warnings in Tosa City now (2026-10-06 21:17 JST)

Warnings and advisories: High Wave Advisory （JMA 2026-10-06 21:02 JST）

Rainfall: last hour 0.0 mm, last 24 hours 0.0 mm （AMeDAS Sakawa・11.4 km・2026-10-06 21:10 JST）

Linear rainband: no JMA weather information for 高知県 has mentioned a linear rainband in the last 48 hours (checked 2026-10-06 21:16 JST). JMA announces linear rainbands, and the half-day-ahead outlook, in its weather information.

Rain radar: Rain radar around Tosa City (2026-10-06 21:10 JST)

Radar: RainViewer (about every 10 minutes). Map: GSI. The red dot is the centre of Tosa City. Open the moving rain radar map

Flood, tsunami and landslide hazard zones (assumed)

Flood (maximum assumed scale): this point is outside the flood-hazard zone even for the maximum assumed rainfall. （Hazard Map Portal Site, maximum assumed scale）

Tsunami: this point is outside the tsunami inundation zone even for the largest-class tsunami. （Hazard Map Portal Site, largest class）

Landslide: this point is inside a sediment-disaster hazard area. （National Land Numerical Information A33）

This shows the "maximum assumed scale" zone, a different document from the record of floods that actually happened (a jisseki-zu). Actual-flood records are published separately by each municipality or river authority. Since 28 August 2020, Japanese real-estate transactions have been legally required to show a property's position on the flood hazard map as part of the mandatory disclosure. This screen can be a starting point for that check, but the authoritative source is each municipality's own hazard map. Open the map here with the hazard layers on