Weather for 2 weeks High temperature trend for a while Pollen scattering in large quantities Watch out for snowmelt disasters
March 04, 2023 12:02
High temperatures are expected to continue in various regions, and the pace of the seasons is likely to move at a rapid pace. A large amount of pollen is expected to fly from Tohoku to Kyushu, and there is a risk of snowmelt disasters in areas where snow remains, mainly on the Sea of Japan side. Here are the weather and temperature trends for the next two weeks.
Warm air inflow in the first half (5th to 11th) Around 20 degrees Celsius every day from Kanto to the west
From now on, there will be many days when the area around Honshu will be covered with high pressure.
From tomorrow 5th (Sunday) to 6th (Monday) the day following tomorrow, it looks like it will be sunny except for rain in the Kanto region. Most places will be sunny following the 7th (Tuesday), and the rain in Tokai and Kinki expected around the 10th (Friday) will not last long and will be temporary. There is no sign of pollen or dryness settling in.
Due to the influx of warm air ahead of the season, the temperature will continue to be high in various places. Especially from around the 8th (Wednesday), the temperature will continue to rise to around 20 degrees Celsius during the day in the Kanto and Kyushu regions. Hokkaido is also warm for this time of year, and it is expected to rain instead of snow around the 8th (Wednesday) and 10th (Friday).
High temperature trend in the second half (12th to 17th) Weather changes periodically
The next heavy rain is likely to fall around the 13th (Monday) to 14th (Tuesday). Due to the influence of low pressure and fronts, there is a possibility that the rainfall will become stronger locally. As warm air continues to flow in, Hokkaido and Tohoku are expected to see more rain, and the snow is likely to melt.
From the 15th (Wednesday) to the 16th (Thursday), the area will be covered with high pressure once more and it will be sunny in most places. The cold air may flow in temporarily, and the wind may feel cold in various places.
Around the 17th (Friday), it will rain once more over a wide area due to the influence of low pressure and fronts.
From Tohoku to Kyushu, large amounts of pollen do not stop scattering
A large amount of pollen is expected to fly as the high temperature trend continues in various places. In addition to the Kyushu-Kanto region, which has already reached its peak, it is predicted that there will be a “very high number” in the Tohoku region.
Even if it’s sunny, it’s essential to take thorough measures, such as drying your laundry indoors and brushing off pollen on your clothes before entering the house.
Cedar pollen is the most common pollen in various places, but cypress pollen is beginning to appear in some areas such as Kanto and Kyushu. Those who are sensitive to cypress pollen will soon need to take full-fledged measures.
Areas with residual snow are at risk of snowmelt disasters
As the warmth continues, there is a risk of disasters due to snow melting in places where a lot of snow remains. There are three things to be aware of:
(1) Melting snow makes it easier for a full-layer avalanche to occur. It is a phenomenon in which all the snow that has piled up on the mountain slides down, and it often occurs following a rise in temperature or following rain. Particular caution is required on slopes that have experienced avalanches in the past or where the snow cover has cracks.
(2) A large amount of water seeps into the ground due to snow melting, loosening the ground and causing landslides. Be especially careful in mountainous areas and steep slopes.
③ If the temperature rises or it rains while snow remains on the road, there is a risk of “flooding”. This is because snow collected on the road shoulders can cause poor drainage, and snow clumps can block drainage ditches. On roads that remain covered with snow, even if it is not raining heavily, be careful of road flooding.
In addition, more snow will fall from the roof, so caution is required when removing snow from the roof or working at the eaves.
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