Rain from Alex – day 2

Another drenching for Aberdeenshire in the 24 hours till 06 UTC on Sunday morning. Estimates from weather radar indicate that totals across Aberdeenshire have been quite widely over 80 mm in the last 24 hours, in …

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Flooding in Essex

Just a few white pixels indicating estimated accumulations in excess of 80 mm across parts of Essex late yesterday were enough to cause flooding in the centre of Chelmsford. There were of a similar intensity to …

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The Findhorn in spate

A friend of mine sent me these interesting pictures of the River Findhorn in Moray. The two images were taken at Randolph’s leap a local beauty spot a week apart, and show just how rapidly the …

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If you don’t know what the acronym GloFAS stands for then join the club, neither did I until today. Here is an explanation from their own website about who they are and what they do. The …

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A tale of two warnings

The only reason that I can see why almost identical warnings were issued for heavy rain across central Wales and central northern England, one amber and the other yellow, is that the Met Office thought that …

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Impacts and likelihoods of rainfall from storm Dennis

No one of course care’s about the minutiae of what the various warnings that were issued, in the final analysis it probably made little difference in alerting people to the chances of flooding, because the media have been all over this story for days, with flocks of TV reporters already vying for best positions along the river Taff in south Wales to capture all the details.

Met Office tone down amber warnings

Maybe if they had given themselves that extra six hours at the start of the amber warnings they might have achieved the higher totals.

Rainfall analysis – 9 February 2020

There certainly was a large area of rainfall accumulations of 50-75 mm and within that smaller areas of 75-100 mm in the 24 hours. No wonder there was flooding at Hebden Bridge.

Look familiar?

Spot the difference in these two salletie images

Venice floods

Flooding from exceptionally high tides in Venice exacerbated by low pressure in the Adriatic and easterly winds.

The curate’s egg

Remarkably none of the torrential rain across northeast Scotland was thundery in nature, despite there being a yellow warning in force for thunderstorms.

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