The combination of humidity and hot weather in May means that despite the fact that the number of pollen is not higher than usual, the pollen itself is stronger, experts said. Yolanda Clewlow, Met Office’s health and air quality liaison officer, told the Met Office podcast Weather Snap: “The power of these pollen grains could be stronger this year because of the time we had. spring. “A warm and humid May, combined with a relatively warm spring, means that the pollen that has developed is likely to be particularly strong.” Grass pollen usually causes an increase in the symptoms of allergic fever in early June and around the same time in July. This is due to about 150 types of grass pollen blooming at the same time. Sky News meteorological producer Joanna Robinson said the number of grass pollens on Saturday was “very high”. Allergy UK has also warned of a new phenomenon – storm asthma – in which people with asthma and allergic fever experience worse symptoms when the weather is turbulent. During storms, more pollution and pollen are released into the air and inhaled by humans – worsening the symptoms of both conditions. The charity also said the pollen season starts earlier and lasts longer due to climate change. Hurricane Alex, which hit the south coast of the United States earlier this week, could lead to further unstable weather in the UK this weekend, but temperatures are forecast to remain high.
