Key facts
- Tropical Storm Dujuan is expected to regain typhoon strength by Tuesday morning.
- Sustained winds could reach 80mph (129km/h), with gusts approaching 100mph.
- The Izu Islands are under evacuation warnings due to heavy rain, flooding, and landslide alerts.
- About 200mm (7.9in) of rain is possible along the southern coasts of the Chubu and Kanto regions in 24 hours.
- The Tokyo metropolitan area may receive nearly 90mm of rain within six hours on Monday evening.
- Tropical Storm Fay developed south-west of the Azores but is not expected to strengthen.
Tropical Storm Dujuan is expected to regain typhoon strength by Tuesday morning as it skirts the coast of Japan, bringing heavy rain and strong winds. While mainland Japan has avoided a direct hit, the Izu Islands are bracing for potential flooding and landslides. Some areas could see rainfall equivalent to an entire month's average in just 24 hours.
Separately, the Atlantic hurricane season remains unusually quiet, with Tropical Storm Fay developing south-west of the Azores over the weekend but not expected to strengthen. This extends the record for the latest first hurricane formation in the satellite era.
Meanwhile, parts of southwestern Europe, including Spain and Portugal, are set to experience a late summer heatwave with temperatures rising significantly above monthly norms.