Loch Vaa, Scotland
Despite an unusually dry April in the notoriously rainy Scottish Highlands, an unpredictable local loch is now way above normal levels, baffling experts and locals.
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The level at a loch that mysteriously lost millions of gallons of water a year ago has risen to one of its highest in years, reports BBC News.
Loch Vaa, near Aviemore in the Cairngorms, is fed by a spring.
In May last year, its lease-holders reported the water level had dropped by 1.4m (4.5ft) for unexplained reasons.
However, after returning to normal levels later in 2019, it has now risen by an extra 2.5m (8ft), the highest level in decades.
“The boats in the boathouse were hitting off the roof,” said Brian O’Donnell, who helps to manage use of the loch.
He said: “It is the highest I have seen in 20 years. This has happened during what is likely to have been one of the driest Aprils, and after a poor winter with little snow-melt.”
Nearby Avie Lochan is also spring-fed but its water level has not changed.
Mr O’Donnell added: “It is pretty amazing and we might never know what is going on with the Loch Vaa.”
After losing tens of millions of gallons of water over the course of about nine months to May last year, Loch Vaa returned to normal in September 2019 – but only after almost 40 days of rain.
Full report here.
Tallbloke's Talkshop 
Someone’s going to get a big shock when they see their water bill.
Nessie, breeding….
UK sunshine in April so far – % of average.
Met Office announcing the sunniest April since records began in 1929 with 212.5 hours of sunshine so far, compared to 211.9 hours in 2015
. . .
Meanwhile, bookmaker Coral makes it odds-on at 1-2 for next month being the wettest May on record in the UK.
https://www.dailymail.co.uk/news/article-8264139/Heatwave-takes-rain-check-forecasters-say-downpours-mid-May.html
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February in the UK was much wetter than normal, and windy. About those records…
I’m in Dundee and Feb March were very rainy.
If that is translated into a higher snowfall on the mountains then our wee April heatwave may have caused an unusually high snow melt.
Although the article mentions a nearby loch that has not responded in the same manner, snow and ice tend to accumulate in the valleys and melt water can be localised. The sun isn’t very high in the sky in April and a North facing valley would get significantly less sunlight than one facing South.
20 year C ENSO R Ship Luck D-own?
Golf’s Caught Top Pin UP!
Sat ties UN: We AI red-D know dawn$ loch king too ray$ median leave hell.
Damian – report says “after a poor winter with little snow-melt”.
According to my solar panel data, last May was sunnier than average but this April has already beaten that figure. Impressive considering both earlier in the season and one day shorter.