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Prefectural Weather Information | Saga Prefecture Weather Information on Heavy Rain, Lightning and Gusty Winds
August 12, 2025 11:09 Announcement by the Saga Regional Meteorological Observatory
In Saga Prefecture, please be vigilant against landslide disasters until the evening of the 12th. Also, be careful of severe gusts of wind such as lightning strikes and tornadoes until late on the night of the 12th.
　[Weather Overview]
　　Warm and moist air flows towards the stagnant front in the Tsushima Strait, making the atmospheric conditions very unstable.
　　For this reason, there is a risk of heavy rain accompanied by lightning locally in Saga Prefecture from the afternoon to the evening of 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 the rain (03:00 on the 9th) to 10:00 on the 12th (preliminary data by AMeDAS)
　　　Tosu 306.0mm
　　　Saga Airport 213.0mm
　　　Saga City Kitayama 211.0mm
　　　Ureshino 205.0mm
　
　[Rain forecast]
　The 1-hour precipitation expected on the 12th is high in places.
　　　Southern 30 mm
　　　Northern 30 mm
　The 24-hour precipitation expected from 12 o'clock on the 12th to 12 o'clock on the 13th is a lot of places.
　　　Southern 60mm
　　　Northern 60 mm
　
　[High tide time]
　　Oura Port 12th 10:59 23:27
　
　[Disaster prevention matters]
　　Please be vigilant against landslides.
　　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 16:30 on the 12th.

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