Typhoon No. 18, a large and very strong typhoon, was moving slowly westward in the South China Sea on the 1st, and is expected to intensify into a powerful force by night. After that, it will weaken slightly and there is a risk that it will approach the Okinawa region with stormy winds around the 3rd or 4th. Meanwhile, Typhoon No. 17 is expected to move northward at a speed of 30 km/h over the ocean approximately 230 km southeast of Hachijo Island, east of the Izu Islands and east of the Kanto region.

According to the Japan Meteorological Agency, Typhoon No. 18, a large and extremely strong typhoon, was moving slowly westward through the Bashi Strait between the Philippines and Taiwan at 3 a.m. on the 1st. The atmospheric pressure at the center is 925 hectopascals, the maximum wind speed near the center is 50 m/s, the maximum instantaneous wind speed is 70 m/s, and it is a storm with wind speeds of 25 m/s or more within a radius of 150 km from the center.

Typhoon No. 18 moved slowly northwest in the South China Sea on the 1st, changed its course to the northeast on the 2nd, and moved toward Taiwan. From the 3rd to the 4th, it moved toward the Okinawa region with strong winds. There is a risk of getting close.

wind forecast

In the Okinawa region, the wind will gradually strengthen, with very strong winds blowing on the 2nd and stormy winds in some places on the 3rd.
Maximum wind speed expected on the 2nd (maximum instantaneous wind speed)
Okinawa region 20 meters (30 meters)
Maximum wind speed expected on the 3rd (maximum instantaneous wind speed)
Okinawa region 30 meters (45 meters)
After that, there is a risk of strong winds around the 4th.

wave forecast

In the Okinawa region, there are places where there will be swells on the first day, and there will be places where there will be heavy swells on the second and third days.
Expected wave height per day
Okinawa region 5 meters with swells
Expected wave height on the 2nd
Okinawa region 6 meters with swells
Expected wave height on the 3rd
Okinawa region 7 meters with swells
After that, there is a risk that there will be severe storms with swells around the 4th.

Disaster prevention matters

In the Okinawa region, there are expected to be strong winds that could cause injuries from flying objects and the risk of overturning moving trucks. Please refrain from going out unless necessary, and stay away from windows when indoors to avoid strong winds. Also, be wary of high waves accompanied by swells. Depending on the typhoon’s path and strength, there is a risk of warning-level heavy rain and storm surge.