Blackfield Weather Blog

Reports and thoughts about New Forest Weather

Calibrating Old Data

When I inspected and updated the weather station at the end of July 2019, I discovered that the wind sensor had been calibrated to read much too low. After quite a few head-scratching hours, and revisiting some neglected hacking skills, I have now managed to…

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Fog

I was woken by fog horns from Southampton Water this morning. Visibility at 6am BST was approximately 600m (fog is anything less than 1km) and was higher even by 7am. Fog forms when the air cannot hold any more water vapour. It is saturated (the…

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Summer 2019

Summer (June, July and August) this year was significantly cooler than last year's (especially July), but fairly close to the long-term average for Southampton Weather Centre (1981-2010). It was much wetter than summer 2018 with June and August significantly wetter than the long-term average. The…

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Hottest Day of the Year

Today was, in traditional terms, a scorcher. The temperature topped out at 30.5C, the hottest this year and the only time we have managed to register a "tropical" day (with Tmax > 30C) this year. That's well down on last year's six days, the big…

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August Gale

It was very windy today, with the newly recalibrated anemometer registering gusts over 40 knots (one of the criteria for a gale warning) while the average wind speed for the day was 13.9 knots or Beaufort 4 (a moderate breeze). There were short periods where…

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