We're experiencing a spell of cold and very windy weather just now, up here in Shetland. My Davis Vantage Pro2 Plus recorded a temperature drop of 4ºC (6ºC to 2ºC) then recovered within the hour back to 5ºC. This coincided with a rise in pressure from 992.6hPa to 993.6hPa then back down to 992.2hPa as the temperature rose. I looked at a few local stations on WU which showed the same event, and our flux tower out on the hills went from 4.6ºC to 1.2ºC to 3.1ºC in the same period.
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Any ideas what would cause an event such as this? Possibly a frontal system, however the rapid recovery of the temperature within the hour is very specific.
Cheers,
Rory