Okinawa Atmospheric unstable conditions Continue to pay attention to violent gusts, etc. May 6: 11:59
In Okinawa Prefecture, the atmospheric conditions have become extremely unstable, and at around 7 am on the 6th, a series of "record short-time heavy rainfall information" was issued around Itoman City. The Meteorological Observatory calls for caution in the Okinawa mainland and Daitojima regions as they may be damaged by heavy wind gusts such as lightning strikes and tornadoes over the evening of the 6th.
In Okinawa Prefecture, the atmospheric conditions are extremely unstable due to the influence of front lines and moist air.
According to the Japan Meteorological Agency, near Itoman City, Okinawa Prefecture, a radar analysis showed that a drastic rain of 120 mm or more per hour up to 6:50 am at 6:00 am near Gushito and Tofudaira in Yaese Town, respectively. It seems that about 110 millimeters of heavy rain fell in one hour up to 50 minutes.
In addition, it was thought that about 110 mm of severe rain had fallen in the vicinity of Tamaki in Nanjo City by 7:00 am, and the "record short-time heavy rainfall information" was announced one after another.
The amount of rainfall from midnight to 10:00 am on the 6th is
135 mm at Nanjo City
and 121 mm at Kumejima Airport.
At Naha Airport, the maximum instantaneous wind speed of 17.5 meters was observed at 5:53 am.
According to the Okinawa Meteorological Observatory, cumulonimbus clouds develop until the evening of the 6th in the Okinawa main island region and Daito island region, and there is a danger of damage due to severe gusts such as lightning strikes and tornadoes.
The Meteorological Observatory calls for efforts to ensure safety, such as moving into a sturdy building when there is a sign of a developed cumulonimbus approach, and also calls attention to sediment-related disasters in the Okinawa main island region.
Inundation Sediment runoff
According to police and fire departments, there were 2 houses in Naha city and 1 house in Ginowan city that were flooded to the floor as of 11:00 am.
In addition, the underfloor was flooded in four houses in Tomigusuku and Itoman.
In Takayasu, Tomigusuku-shi, the slope along the city road collapsed, and the sand and sand flowed into the road for a length of about 15 meters and a width of about 3 meters, making it impassable.
The Meteorological Observatory has called for warning of sediment-related disasters until after noon in the central and southern parts of the main island of Okinawa, saying that some of the ground is loose due to the rain that has fallen so far.