• Jet stream in favourable position this week

    Jet stream in favourable position this week

    After a chilly start to Sunday the thermometer eventually climbed to a peak of 16.1C late Sunday afternoon being a significant 5.4C above my long-term average. This high was thanks to the many hours of glorious sunshine but outside it was tempered by a chilly northwesterly breeze that gusted strongly with a maximum gust of 22mph at 14.44 that for much of the day produced a modest wind chill that out of the sun made it feel cool, irrespective of the air temperature.

    It was not surprising to find that the thermometer made a steady downward movement overnight, under the clear skies and almost complete absence of any breeze to stir up the air mass. The air temperature fell to freezing point at 06.20 early Monday with a low of -0.4C at 06.59 before the sun got to work. Although the air frost lasted only an hour to 07.20 the ground frost was over a much longer period.

    Monday revealed a glorious, sunny start to the new day after the sun had cleared some thin cloud over the eastern horizon. After the hour changed yesterday it is not quite so warm today at 08.00 as recently with a temperature of 2.1C logged at that time.

    The Jet Stream is currently looping to the north of the UK resulting in the country being on the warmer side to the south. The forecast is that this situation will continue for much of the week with the high pressure dominating our weather up to the weekend. As a result we are likely to have sunny, warm days but chilly nights as the sky remains mostly clear.

    We are still on for me to record the driest Match since my station began in 1984 with just 5.2mm of precipitation against the 40-year average of 62.9. This very low total is 8.3% of the long-term data set against the BBC weather comment of around 25% for much of southern England yesterday.

    More pictures taken of Marlborough in Bloom in 2015, for the portfolio and presentation, when we were awarded Gold.

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