Due to the effects of rapidly developing low pressure systems and fronts, it is expected that rainy and windy stormy weather will occur nationwide on the 22nd.


The Japan Meteorological Agency is calling for caution against inundation of low land, severe gusts such as tornadoes, and lightning strikes, as well as storms and high waves, especially in northern Japan.

According to the Japan Meteorological Agency, there is a low pressure system with a front in the Sea of ​​Japan, and warm and moist air flows in from the south.



During this time, the cold front is near the Tsushima Strait, and rain clouds are developing in Kyushu and Kanto.


It rained 29.5 mm in Katsuura City, Chiba Prefecture in the hour until 5:30 am.



On the 22nd, there is a risk of heavy rain of 30 mm or more per hour from Hokkaido to Kyushu, and the amount of rain in the 24 hours until the morning of the 23rd is large, 150 mm on the Pacific side of Hokkaido, Kanto and Izu. It is expected to be 120 mm in the Islands and Tokai, and 100 mm in the Pacific side of Tohoku.


The Japan Meteorological Agency calls for careful attention to low land inundation, sediment-related disasters, and river flooding.


Before and after the front passes, you need to be careful about strong gusts such as lightning strikes and tornadoes, as well as "hail".

Be wary of storms and high waves, especially in northern Japan

In addition, the wind is getting stronger mainly in the coastal areas.


Since the low pressure system in the Sea of ​​Japan will develop rapidly from now on, there is a risk of storms blowing mainly in northern Japan.


The maximum wind speed expected over the 23rd is 23 meters at sea in Hokkaido, 20 meters at land in Hokkaido, 18 meters at sea in Tohoku, and 17 meters at land in Tohoku.


Maximum instantaneous wind speeds are expected to be 30 to 35 meters in Hokkaido and Tohoku.


The waves are high, and it is expected to be as large as 6 meters in Hokkaido, Tohoku, and Hokuriku by the 23rd.


The Japan Meteorological Agency is calling for caution against storms and high waves, especially in northern Japan.