Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

UK weather: Hottest ever late-December temperature as mercury hits 16.8C in Scotland

Scottish Highlands hotter than Cyprus at 3am with overnight high of 16.8C recorded in Cassley

Kate Ng
Monday 30 December 2019 09:29 GMT
Comments
(Getty)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

The Met Office recorded an “exceptional” overnight temperature of 16.8C in northern Scotland in the early hours of Sunday morning, a record high this late in the year.

The unusually warm temperature, the highest on record for 29, 30 or 31 December, was recorded at 3am in Cassley in Sutherland.

Northeastern England and northern Wales also experienced an unseasonably warm night, with temperatures hitting 13.3C in Chillingham Barns, Northumberland, and 11.5C in Rhyl.

Met Office forecaster Alex Burkill told Sky News: “It is pretty exceptional. We have never recorded a temperature that high this late in the month. What makes it more unusual was the temperature came at 3am.”

The record high for December was set at 18.3C in Achnashellach in the Scottish Highlands, and was recorded on 2 December 1948.

According to the Met Office, the phenomenon is due to a meteorological pattern called the Foehn Effect, which occurs regularly in mountainous areas.

It takes place when humid air hits one side of the mountain and is pushed upwards by strong winds, forming cloud and rain at the top of the mountain.

Dry air is then pushed down the other side of the mountain and gets hotter as it travels down.

The Foehn Effect can result in strong windstorms which can cause damage to property and infrastructure, and can be dangerous for mountain climbers.

The warmth it brings can also cause avalanches, glacial melt and downstream flooding, as well as disintegrating ice shelves.

However, regions that experience the Foehn Effect regularly also have longer crop-growing seasons and warmer, drier climates.

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in