The front of the rainy season will advance north this Wednesday, the 20th, deteriorating weather conditions from the west of Japão. Nuvens of precipitation will gradually move eastward, covering eastern Japan overnight. Temperaturas maximums will exceed 30°C in regions such as Kyushu, Kanto-Koshin and Fukushima, which experienced extreme heat waves the previous day.
Mesmo With sunny periods during the day, especially in the eastern region, residents should carry a raincoat. Forecasts indicate a drop of up to 3°C compared to the previous day, but still 3 to 5°C above the climatological average of the time.
Chuvas concentrated in the west during the day
Strong Pancadas will mainly hit the Chugoku and Shikoku regions throughout Wednesday. The south of Kyushu will record morning precipitation that should cease quickly, while the region of Kinki will face advancing clouds from the end of the afternoon. Rain-prone areas will progressively shift east after dark.
Previsão of precipitation for the period:
- Manhã: rain in the south of Kyushu, quick closure
- Tarde: showers in Shikoku and Chugoku, possibility of intense showers
- Noite: Breakthrough for Kinki and Eastern Regions
Alerta for heavy rain on Thursday
A new low pressure system approaches the western region, bringing rain clouds again after a brief interruption. Thursday, the 21st, will record heavy precipitation over a large area ranging from Kyushu to Tohoku. Algumas locations will suffer intense showers that can generate significant accumulations in a few hours.
The south of Kyushu may see the official start of the rainy season (tsuyu) declared in the coming days, as weather patterns consolidate. Especialistas in meteorology guides review of preventive measures against floods and landslides before the expected intensification of rainfall volumes.
Impacto of extreme heat in specific regions
Kyushu, Kanto-Koshin, and Fukushima recorded extreme temperatures on the 19th, requiring special precautions against heatstroke and dehydration. Apesar of the thermal drop predicted for Wednesday, these regions will still exceed the 30°C mark, maintaining intense heat conditions.
Cidadãos must:
- Aumentar fluid intake
- Evitar prolonged exposure to the sun between 11am and 4pm
- Manter ventilated environments
- Acompanhar weather warnings frequently
Condições east of Japão until Wednesday night
Tohoku will experience predominantly sunny weather until dusk on Wednesday, with precipitation only arriving during the early hours of the morning. Kanto will have sun during the day, but rain clouds will reach the region during the transition to night. The Tokai region will also record the possibility of rain from the end of the afternoon.
Moradores in these areas will face sudden fluctuations between sun and rain within a few hours, increasing the risk of colds and inflammation in the respiratory tract. Equipamentos protective equipment such as an umbrella must be carried constantly.
Próximos steps and monitoring
Meteorology will monitor the movement of the frontal system throughout Thursday. Updated Previsões will be issued every three hours as the situation evolves. Civil defense Centros in the affected prefectures are already receiving notifications about the potential need for preventive evacuations in areas of high geological risk.