The Tokai region is transitioning from heavy rainfall to a period of intense heat. According to Nozomi Takeshita of the Japan Meteorological Association, significant rain has already impacted Mie and Gifu, but high pressure is expected to bring sunny skies and temperatures above 30°C starting July 9, with some areas potentially nearing 35°C by mid-month.
Why is the Tokai region seeing heavy rain today?
A seasonal rain front extending from near West Japan to the southern seas of East Japan is currently driving heavy precipitation across the region. As of 11 a.m. on July 6, rainfall totals in Mie and Gifu prefectures exceeded 100mm within a 48-hour period.
Forecasters warn that this heavy rain has loosened the ground, increasing the risk of landslides. In Mie, residents should also prepare for potentially heavy rain accompanied by thunder through the night.
Did You Know? As of 11 a.m. on July 6, both Mie and Gifu prefectures recorded more than 100mm of rainfall over a 48-hour period.
When will the weather turn sunny and hot?
Rain clouds are expected to gradually move away from the Tokai region starting July 7. While July 7 and 8 may remain cloudy due to pressure troughs and moist air, sunny intervals are expected to appear during the day.
From July 9 through July 12, high pressure is expected to cover the region, bringing widespread sunny weather. During this period, many areas are expected to see “Manatsubi,” or summer days where maximum temperatures exceed 30°C.
Expert Insight: The rapid transition from heavy rainfall to extreme heat requires residents to manage two distinct environmental risks: the immediate threat of landslides due to saturated soil, followed by a significant increase in heatstroke risk as temperatures climb.
How intense will the heat be in late July?
The heat may intensify between July 14 and July 19. Although the weather could become more variable during this time due to moist air, temperatures are expected to remain higher than seasonal averages.
Some locations may see maximum temperatures approach 35°C. Additionally, the Japan Meteorological Association notes that tropical nights are likely, which may lead to more difficult sleeping conditions as temperatures do not drop significantly at night.
Frequently Asked Questions
When will temperatures consistently exceed 30°C?
Widespread sunny weather and daily highs above 30°C are expected to begin on July 9.
Are there any immediate safety concerns regarding the rain?
Yes, the Japan Meteorological Association warns of potential landslides due to loosened ground following heavy rainfall in Mie and Gifu.
Will the heat affect nighttime temperatures?
Yes, tropical nights are expected between July 14 and July 19, meaning temperatures may not drop significantly overnight.
How are you preparing for the upcoming increase in temperature?
