According to Weather News analysis, Nagasaki has entered the cedar pollen scattering season today, February 7th (Wednesday). The dispersal started two days earlier than last year.
Weather News has installed its own pollen observation machine “Porun Robo” in about 1,000 locations across the country and has started observing pollen, and the number of reports of hay fever symptoms by users of the Weather News app is increasing.
From mid-February onwards, the number of pollen particles will increase further, and it looks like the pollen season will be in full swing.
Nagasaki enters pollen season with top spot in the nation
Nagasaki has decided to enter pollen season due to an increase in the number of hay fever symptoms reported by weather news app users.
・February 7th
Nagasaki
Male cedar flowers begin to release pollen when the weather gets warmer. This winter, there was a timing when warm air flowed in mid-January. This seems to have caused the male cedar flowers to bloom more quickly, and in February, when the weather became clear and the weather was a little less cold, conditions became easier for pollen to be dispersed.
Since the end of the three-day holiday, there have been “slightly more” days in Kyushu.
This week, there are many days with weak but winter-like atmospheric pressure patterns, so temperatures will be low, but temperatures are expected to rise temporarily after the three-day weekend. At this time, there is a possibility that cedar pollen will be easily dispersed in western and eastern Japan.
It is predicted that there will be days in Kyushu, such as Fukuoka, where pollen scattering is ranked as “slightly high.” Please take measures against hay fever.
The peak of cedar pollen scattering is from mid-February to mid-March.
Dispersion peak forecast (cedar pollen/cypress pollen)
Cedar pollen is expected to reach its peak in mid-February when it gets warmer in western Japan, the Tokai region, and the Kanto region, late February in Hokuriku and southern Tohoku, and early March in northern Tohoku.In the second half of March, the amount of cedar pollen gradually reaches its peak, and the amount of cypress pollen from western Japan increases.
It is expected that cypress pollen will reach its peak from mid-March to mid-April, mainly in western and eastern Japan. If the temperature continues to rise, the peak may occur earlier than expected, so please be careful if you are sensitive to cypress pollen.
It is expected that birch pollen will be in full swing in Hokkaido from late April to mid-May, which may coincide with Golden Week.
About pollen season
Weather News announces the “Pollen Season” based on pollen detection by its own pollen observation device “Porun Robo”, which has been installed around 1,000 units nationwide, and reports of hay fever symptoms from users of the Weather News app. Masu.
*Guideline for determining the start of pollen season
・On days when pollen is likely to fly, more than 30% of Porun Robo in each prefecture observed more than 10 pollen particles for two or more days.
・Durham observation data such as user’s hay fever symptoms and surrounding research institutes and hospitals
We make a comprehensive judgment based on the above.
Photo: Weather Report (posted from the Weather News app)
Reference materials etc.
2024-02-07 08:52:00
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