Due to the influence of low pressure and fronts, it is expected that the weather will be rough with rain and wind nationwide on the 22nd, and the Japan Meteorological Agency is calling for careful attention to inundation of low land, severe gusts such as tornadoes, and lightning strikes. ..

In addition, since low pressure systems develop rapidly, it is necessary to be alert to storms and high waves, especially in northern Japan.

According to the Japan Meteorological Agency, a low pressure system near the Korean Peninsula is expected to rapidly develop and move northeast, and a cold front extending from the low pressure system is expected to pass from west to east near Japan.



As a result, atmospheric conditions become unstable nationwide, and there is a risk of heavy rain of 30 mm or more per hour from Hokkaido to Kyushu.



The amount of rain in the 24 hours until the evening of the 22nd

is expected to be


200 mm in the Tokai


region, 150 mm in the Izu Islands


, 100 mm in the Pacific Ocean side of Hokkaido,


and 80 mm in the Pacific Ocean side of Tohoku. It has been.



After that,

there is a risk of heavy rain from 100 mm


to 150 mm on the Pacific side of Hokkaido


and 50 mm to 100 mm in the Tohoku region

until the

evening of the 23rd

.



The Japan Meteorological Agency calls for careful attention to low land inundation, landslides, and river flooding.



Gust damage occurred in various places earlier this month, but before and after the front passes, it is necessary to pay close attention to severe gusts such as lightning strikes and tornadoes, as well as hail.

Rapid development of low pressure system Beware of storms and high waves mainly in northern Japan

On the other hand, due to the rapid development of low pressure systems, the wind is expected to intensify mainly in northern Japan, which is close to low pressure systems.



The maximum wind speed expected on the 22nd is


▽ 23 meters on the sea in


Hokkaido

,

▽ 18 meters on land in Hokkaido and on the sea in


Tohoku

, and

▽ 15 meters on 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


5 meters in Hokkaido


and 4 meters in Tohoku and Hokuriku


.



The windy condition is expected to continue for 23 days, and the Japan Meteorological Agency is calling for caution against storms and high waves, especially in northern Japan.