According to Weather News analysis, Osaka and the following prefectures have entered the cedar pollen season. Furthermore, the following prefectures, including Tokyo and Kanagawa, appear to have entered the season when cedar pollen is scattered in earnest.
▼Pollen season in
2/16: Gifu, Kochi
2/15: Osaka, Hyogo
▼Pollen season in full swing
2/15: Tokyo, Chiba, Saitama, Nagasaki, Oita
2/13: Kanagawa
Weather News has installed its own pollen monitoring 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 late February onwards, the amount of pollen dispersion will increase even further, and many areas are likely to enter the full-fledged pollen season.
All of Kyushu is in pollen season
Oita Prefecture has decided that pollen season has entered due to an increase in the number of hay fever symptoms reported by weather news app users. It’s now pollen season across Kyushu.
・February 12th
Oita Prefecture
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.
“Very high” predictions for Tokyo and Fukuoka
Pollen scatter forecast
The days with high temperatures will continue. From the 18th (Sunday) to the 19th (Monday), there is a risk that the amount of cedar pollen will increase due to rising temperatures nationwide and stronger southerly winds. There is also a possibility that we will enter the dispersal season in northern Tohoku and Hokuriku.In particular, there are days in Fukuoka and Tokyo where the pollen forecast is ranked as “very high,” so please take strict 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
At Weather News, we make announcements about the pollen season based on pollen detection by our own pollen monitoring machines, “Porun Robo,” which we have installed around 1,000 of them around the country, and on 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.
» List of weather news articles
Photo: Weather Report (posted from the Weather News app)
Reference materials etc.
2024-02-16 08:34:00
#cedar #pollen #scattering #season #Osaka #extremely #high #amounts #expected #Tokyo #week
