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Prefectural Weather Information | Saga Prefecture Weather Information on Heavy Rain, Lightning and Gusty Winds
2025 August 11, 22:51 Saga Regional Meteorological Observatory announced
In Saga Prefecture, be alert for landslide disasters until the early morning of the 12th, and be careful of flooding of low-lying land and rising water in rivers. Also, watch out for violent gusts of wind, such as lightning strikes or tornadoes.
　[Weather Overview]
　　Warm and moist air flows towards the front in the northern region of Kyushu, making the atmospheric conditions very unstable.
　　For this reason, in Saga Prefecture, there is a risk of heavy rain accompanied by lightning locally on the 12th. The ground has become loose in some places due to the heavy rain so far, and even a little rain may cause landslides. There is also a risk of severe gusts of wind such as lightning strikes and tornadoes.
　
　[Rain commentary]
　Precipitation from the beginning of rain (03:00 on the 9th) to 22:00 on the 11th (preliminary data by AMeDAS)
　　　Tosu 306.0mm
　　　Saga Airport 212.5mm
　　　Saga City Kitayama 199.5mm
　
　[Rain forecast]
　The expected 1-hour precipitation on the 11th is a lot of places.
　　　Southern 20 mm
　　　Northern 20 mm
　The 1-hour precipitation expected on the 12th is high in places.
　　　Southern 30 mm
　　　Northern 30 mm
　The 24-hour precipitation expected from 0:00 on the 12th to 0:00 on the 13th is in places with a lot of rainfall.
　　　Southern 60mm
　　　Northern 60 mm
　
　[High tide time]
　　Oura Port 11th 22:57
　　　　　　12th 10:59 23:27
　
　[Disaster prevention matters]
　　Be vigilant against landslides, and be careful of flooding of low-lying land and rising rivers.
　　Also, watch out for violent gusts of wind, such as lightning strikes or tornadoes.
　　If there are signs that a developed cumulonimbus cloud is approaching, please try to ensure safety, such as moving into the building.
　
　[Supplementary Notes]
　　Please pay attention to future warnings, advisories, weather information, etc.
　　For information on the risk distribution of landslides, flood damage, and flood disasters, please check the "Japan Meteorological Agency website".
　
　　The following information is scheduled to be announced around 6 o'clock on the 12th.

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