Pollen information for the 25th Tokyo: “Very high” Dust peak in Fukuoka, etc. Be careful of pollen from now on (Weather forecaster Satoko Ono February 25, 2024) – Japan Weather Association tenki.jp
Pollen information for the 25th Tokyo: “Very high” Pollen peak in Fukuoka, etc. Be careful of pollen scattering from now on
February 25, 2024 06:00
The amount of pollen scattered today, the 25th, is expected to be “very high” in Tokyo. All possible measures are required. On the other hand, there are some places, especially in western Japan, where it has been raining since morning, but those who are sensitive should take precautions when going out. Fukuoka and other areas are at the peak of pollen scattering. We need to be careful about the scattering of pollen from now on as well.
What is the pollen scattering today on the 25th?
The amount of pollen scattered today, the 25th, is expected to be “very high” mainly in Tokyo. Pollen scattering is likely to increase, especially in the morning when it has not yet rained. Also, Fukuoka has a “high” rate, while Kagoshima, Hiroshima, Kanazawa, Niigata, and Sendai have a “slightly high rate.” It seems that strong measures will be needed.
On the other hand, Kochi, Osaka, and Nagoya, where rain falls for a long time, are expected to have “less rain.” However, even if the amount is small, a small amount of pollen will fly, so if you are sensitive to it, please be careful and take precautions when going out.
What about pollen dispersion in the future?
Starting tomorrow, the 26th, we need to be careful about pollen dispersion, especially in western Japan. Tomorrow, the 26th, there will be “a lot” in a wide area from Fukuoka to Nagoya. On the 27th and 28th, Fukuoka is expected to have a “very high number of cases.” All possible measures are required.
On the other hand, Tokyo will experience “slightly higher numbers” from tomorrow the 26th to the 28th. It will rain in many places on the 29th, and the scattering of pollen will be suppressed in many places nationwide. In March, pollen scattering is likely to increase again, mainly in western Japan.
How long will pollen peak last?
Already in some parts of Kyushu, Tokai, and Kanto, extremely high levels of cedar pollen have been observed. In Fukuoka and Takamatsu, cedar pollen is at its peak. Pollen is expected to be scattered in large numbers on days after rain. Hiroshima, Osaka, Nagoya, Kanazawa, Tokyo, and Sendai will reach their peak in early March. The peak period is expected to last from about 10 days to nearly a month. Particularly on sunny, warm days or windy days, the amount of pollen scattered increases, so please take thorough measures to prevent pollen.
Also, once the cedar pollen season ends, the next season is cypress pollen season. Cypress pollen peaks in many places from late March to early April. In Sendai, the amount of cypress pollen scattered is small, and no clear peak is expected to appear.
Conditions that make pollen easy to fly
There are three main conditions under which pollen tends to fly.
① “A sunny and hot day”
Male cedar flowers open more easily when the temperature rises. Furthermore, on sunny days with high temperatures, updrafts are likely to occur, making it easier for pollen to fly up.
② “A day when the air is dry and the wind is strong”
When the humidity is high, pollen absorbs moisture and becomes heavier, making it difficult for it to fly far. On the other hand, on days when the air is dry and windy, pollen is more likely to fly from forests far away from urban areas, so you need to be even more careful.
③ “After the day after rain or after 2-3 consecutive days of high temperatures”
The day after a rainy day, more pollen is likely to fly because the amount that was not dispersed on the rainy day and the amount that was dispersed on that day overlap. In addition, pollen that falls on the ground due to rain may be blown up, increasing the amount of pollen scattered. Also, even after two to three days of high temperatures, more pollen is likely to fly.
If you suffer from hay fever, check the daily weather forecast and prepare for pollen.
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2024-02-24 21:00:44
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