Typhoon 9 is a very strong force Okinawa is record storm / highest storm surge fear in history (Daily Forecaster Aug 31, 2020) -Japan Meteorological Association tenki.jp

First of all, Okinawa needs strict precaution against storms. There will be stormy wind from the night of 31 (Monday), and on September 1 (Tuesday), the wind will intensify even more, and there will be a place with fierce wind where there is a risk that some houses will collapse. An instantaneous maximum wind speed of 70 meters is expected in Okinawa’s main island region, which can cause a record windstorm. (In Naha City, the highest instantaneous wind speed of 73.6 meters observed on September 8, 1956 is the strongest wind in history.) Go to a sturdy building and stay indoors away from windows. Next, storm surges require strict caution. The highest storm surge ever recorded in the central and southern part of the main island can cause flooding and flooding in the coastal lowlands.

In addition, there are already typhoon rain clouds over Okinawa, and heavy rainfall of 80mm per hour is expected in many places by September 1 (Tuesday). We need to be alert to sediment-related disasters, river flooding, flooding, and lowland flooding. Stay away from shore, as there is a risk of violent barges at sea.