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| Britain basks in sunshine before temperatures dip | Britain basks in sunshine before temperatures dip |
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| The UK's turbulent spring weather is forecast to continue this week, with the warm spell ending on Thursday before temperatures plummet by the weekend. | |
| The mercury was forecast to peak at 20C (68F) in parts of the south-east on Wednesday, although much of the UK was cloudy with some rain. But the weather will be noticeably cooler by Friday, when a cold front will see temperatures fall to 12C in the London area and 7C in Scotland. | |
| Sally Webb, a forecaster with MeteoGroup, the weather division of the Press Association, said on Wednesday: "There will be highs of 19C or 20C in East Anglia today, and locally it could go even higher than that, coming close to the being hottest day of the year so far. | |
| "But it will be cloudy across most northern areas and Scotland, with outbreaks of rain. The south and south-east will be drier with some sunny spells." | "But it will be cloudy across most northern areas and Scotland, with outbreaks of rain. The south and south-east will be drier with some sunny spells." |
| Tuesday's highest temperature was 21.3C at East Malling in Kent, which is about 4C above the average for this time of year. | |
| But a weather system spreading southward will bring cooler temperatures on Friday, when there will be highs of 12C in London and 10C elsewhere in England. | |
| Webb said: "It will stay like that for the weekend and start to recover again on Monday and Tuesday to about 14C, gradually getting warmer through the week." | |
| However, the chilly winter has brought some good news to hay fever sufferers after experts predicted a shorter hay fever season this summer. Cold weather over recent months is thought to have delayed the release of silver birch and grass pollen. | |
| Beverley Adams-Groom, pollen forecaster at the National Pollen and Aerobiology Research Unit, said: "The most important tree pollen type is silver birch which triggers hay fever in approximately 25% of sufferers. | Beverley Adams-Groom, pollen forecaster at the National Pollen and Aerobiology Research Unit, said: "The most important tree pollen type is silver birch which triggers hay fever in approximately 25% of sufferers. |
| "The cold weather of the last few months will delay the release of birch pollen which, in an average year, starts to be emitted from around the beginning of April in the south of the country. This year it could be at least two weeks later." | "The cold weather of the last few months will delay the release of birch pollen which, in an average year, starts to be emitted from around the beginning of April in the south of the country. This year it could be at least two weeks later." |
| Adams-Groom added: "Grass pollen affects around 95% of hay fever sufferers in the UK. | Adams-Groom added: "Grass pollen affects around 95% of hay fever sufferers in the UK. |
| "There are a number of grass species that flower ahead of the main pollen season, often in April, such as sweet vernal grass and foxtail. The cold weather will delay the flowering of these types, which is good news for those people who are affected by these species. However, it's too early to predict what will happen during the main grass pollen season." | "There are a number of grass species that flower ahead of the main pollen season, often in April, such as sweet vernal grass and foxtail. The cold weather will delay the flowering of these types, which is good news for those people who are affected by these species. However, it's too early to predict what will happen during the main grass pollen season." |
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