UK weather forecast: Extreme pollen alert as heatwave set to begin

uk weather forecast extreme pollen alert as heatwave set to begin - UK weather forecast: Extreme pollen alert as heatwave set to begin

Hay fever sufferers are being told that the Met Office have released their highest warning possible for pollen levels across Britain today.

Forecasters are predicting pollen levels will reach ‘very high’ – it’s normally moderate or high – as a combination of humidity, clearing skies and dropping winds mean flowers and grasses across the country release their pollen en masse.

The pollen levels are rarely classed as ‘very high’ – but on Wednesday and Thursday the forecast is that extreme pollen levels will send hayfever sufferers to their medication, or indoors.

The warm, wet, humid weather of the start of this week will quickly clear on Wednesday morning – overcast conditions will break up by around noon, leaving a hot, sunny day.

 

Temperatures will reach 25 or 26 deg C in Bristol – the optimum temperature for pollen release. Anything over 28 deg C and pollen levels start to decline.

Forecasters are predicting a mini-heatwave with the clear, hot, sunny days continuing for the rest of the week, and into the weekend.

uk weather forecast extreme pollen alert as heatwave set to begin 2 - UK weather forecast: Extreme pollen alert as heatwave set to begin

(Image: Met Office)

Although, the Met Office has revised its forecast of earlier this week, which predicted scorching temperatures into the low 30s deg C. The highest temperatures forecast for Bristol are 26 deg C, on both Friday and Saturday.

The ‘Very High’ pollen levels are set to continue as long as the hot weather does – and that is forecast to break on Sunday morning when, according to the Met Office, we’ll wake to a cloudier, cooler morning and temperatures rising slowly to just 19 deg C.

 

The pollen levels will be down to moderate then too.

One feature of the four-day heatwave being predicted is uncomfortably warm nights – it will be as warm as 19 or 20 deg C overnight on Thursday and Friday nights, which will mean most of us having to sleep with the windows open or the fans on.

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