Scotland Faces Hottest Day of the Year
Scotland is anticipated to experience its hottest day of the year, with temperatures forecast to reach 30C in southern regions. This will meet the official criteria for a Scottish heatwave as the UK endures some of its warmest June nights on record.
In response to the extreme heat, gritters have been deployed in the Borders to spread sand over main roads. This measure aims to reflect heat and cool the road surfaces, preventing damage caused by high temperatures.
Heatwave Criteria and Recent Temperature Records
The Met Office defines a heatwave in Scotland as temperatures reaching 25C for three consecutive days in the same area. On Tuesday, a high of 29C was recorded at Dyce in Aberdeen, surpassing the previous year's high of 28.1C at Floors Castle in the Borders on 25 May.
Scottish Borders Council has reported that the extreme heat is causing road damage, with some surfaces reaching temperatures of 45 degrees Celsius. The B6363 road from Lauder to Stow has already been closed due to heat damage.
David Robertson, chief executive at Scottish Borders Council, stated:
"If you see the gritters, it's not the council being daft, it's us actually trying to protect the road surface. We're providing a fine layer of sand to prevent the melting of the tar. What we're seeing is ambient road temperatures at the height of the heat up in the 40s, and that causes the tar on the roads to melt."
He also mentioned expectations for temperatures to reach 31C in Newcastleton and Hawick.
Local Authorities and Safety Advisories
Meanwhile, Dumfries and Galloway Council has urged residents to consider the challenges faced by frontline staff working in personal protective equipment during the heat.
Police Scotland has issued reminders regarding water safety, highlighting the risks of drowning and cold water shock during the warm weather.
Weather Forecast and Warnings
BBC Scotland weather presenter Gillian Smart explained that the heat will peak as southeasterly winds bring intensely hot, humid air from the continent. She said:
"The highest temperatures will be in central and southern Scotland, where we're likely to see 30 Celsius."
However, she warned of a "thundery breakdown" expected on Thursday afternoon. A weather front to the northwest will interact with the warm air, producing heavy, thundery showers across the Western Isles, the Northwest Highlands, and the Northern Isles. These showers will move southwards, becoming torrential in places and bringing a risk of hail.
A yellow warning for thunderstorms has been issued for the Highlands, Orkney, Moray, and Argyll and Bute from 15:00 to 23:59, and for the rest of mainland Scotland from 00:00 to 23:59 on Friday.
Heatwave Across the UK and Europe
Parts of England and Wales have a rare red warning for extreme heat in place, and much of Europe is expected to experience another scorching day. Temperatures will remain approximately 12 to 15C above average across northern Spain, France, Belgium, and the Netherlands.
