Intermittent rain is expected across the Tohoku and Hokuriku regions of Japan on Monday, June 22 [1, 2].
The forecast is critical because heavy rainfall on the Pacific side of Tohoku increases the risk of landslides, river swelling, and flooding in low-lying areas [1, 2].
TBS NEWS DIG said rain will be intermittent starting in the morning [1]. While the north and west face precipitation, other areas will see varying conditions. Hokkaido is expected to experience rain in the afternoon, while Kyushu may see rain by the evening [1]. Regions from Kanto to western Japan are expected to remain cloudy [1].
Temperatures will vary significantly across the archipelago. Morning temperatures in western and eastern Japan are expected to be around 22°C [1]. Daytime highs will reach near 30°C across Kanto and western areas [1].
Specific city forecasts include a high of 31°C in Naha and Kochi [1]. Nagoya is expected to reach 30°C, while Tokyo and Hiroshima will both hit 29°C [1]. Osaka and Okayama are forecast to reach 28°C [1].
In the Hokuriku region, Nagano is expected to reach 26°C [1]. Niigata and Kanazawa are both forecast at 24°C [1].
Northern regions will remain cooler. Sendai is forecast at 20°C, while Aomori and Morioka will reach 18°C and 17°C, respectively [1]. Sapporo is expected to hit 23°C, while Kushiro will reach 15°C [1].
Authorities said residents in the Tohoku region should monitor river levels and remain alert for potential soil disasters due to the rain [2].
“Intermittent rain is expected across the Tohoku and Hokuriku regions”
The combination of heavy intermittent rain and rising temperatures indicates a volatile weather pattern typical of the early summer transition in Japan. The specific warnings for the Pacific side of Tohoku highlight a vulnerability to geological instability, where saturated soil can quickly lead to landslides during concentrated bursts of precipitation.
