Due to the effects of cold air and low pressure in the sky, the atmospheric conditions may become unstable from western Japan to northern Japan over the 20th, so be careful of heavy gusts such as lightning strikes and tornadoes, hail, and local heavy rain. is.

According to the Meteorological Agency, strong cold air is flowing into the sky for this time of year, and


the lowest temperature until 5 am

on the

19th is


▽ Sapporo city 4.5 degrees,


▽ Morioka city 5.8 degrees,


▽ Tottori city 9 degrees,


▽ In

some places, it was as cold as early November

, with 10.3 degrees in Toyama City and


11.9 degrees in central Tokyo


.



In addition to the cold air, warm and moist air will flow toward the low pressure system in the Sea of ​​Japan, and the atmospheric conditions are expected to become unstable in western Japan, Hokuriku, Niigata Prefecture, and Tohoku over the 20th.



From western Japan to northern Japan, it is necessary to pay attention to lightning strikes, gusts, localized heavy rains, and hail from the morning of the 19th.



On the Sea of ​​Japan side of Tohoku, heavy rain may occur on the 20th.



If there are signs that a developed cumulonimbus cloud is approaching, such as a sudden cold wind, move to a sturdy building to ensure safety.



Also, from western Japan to northern Japan, where low pressure is approaching, pay close attention to high waves, especially on the Sea of ​​Japan side.