The wildfire threat has been raised to 'very excessive' over a lot of England and elements of Wales.
The Met Office fireplace severity index reveals the heatwave and lack of rain combining to create tinder-dry situations.
And they're anticipated to final for the remainder of the week.
An excessive wildfire warning already covers northeast Scotland as temperatures soar, with firefighters dispatched to sort out a blaze which broke out near Iverness on Saturday.
It is extremely uncommon for the chance to be rated so excessive, so early in the summertime.
Normally, damp situations produce lush vegetation for a number of weeks but.
But the panorama is so dry this yr that there's loads of gasoline for fires.
UK Wildfire Tactical Advisor, Craig Hope, stated the chance had change into "elevated" with local weather change.
He stated: "It could be very early in the summertime and final yr once we had the fires in London, that was excessive, however that was quite a bit later within the yr.
"How this year will build now is quite worrying."
Sky News joined firefighters from across the nation as they watched a specialist staff from the South Wales Fire and Rescue Service sort out a blaze on Rhigos mountain close to Abergavenny.
They had assembled for a coaching course on wildfires however had been re-directed to look at a reside fireplace.
The Rhigos fireplace began on Friday night however repeated makes an attempt to douse the flames have failed.
In a concerted effort to carry the fireplace underneath management the service used a helicopter to drop water on the flames and introduced in excavators to create fireplace breaks.
We had been taken alongside forestry tracks to an space of woodland forward of the advancing fireplace.
There, the staff set mild to the grass and timber in a managed burn to field in the principle fireplace and cease it spreading by one other spruce plantation in the direction of a close-by wind farm.
Using fireplace to battle fireplace is a tactic frequent in Canada and California, however the South Wales Fire and Rescue Service is among the few within the UK to make use of it.
Chris Deacon, watch supervisor for the service, stated: "Because of the weather conditions, it doesn't matter how much water we put on this fire, it will dry out and it will reignite.
"So, our solely technique right here is managed burning."
Read extra:Canada on course for worst wildfires on recordNew York issues air quality alert - as US skies darkened by Canada wildfires
The Wennington wildfire in east London final summer time shocked many specialists due to its velocity and depth.
Almost 20 homes had been destroyed by the large grass fireplace on 19 July - the most popular day ever recorded within the UK when temperatures rose above 40C - which noticed the London Fire Brigade take care of greater than 1,000 incidents.
It was one in every of 24,316 wildfires in England between June and August 2022 - 4 occasions as many as in the identical interval of the earlier yr.
The Met Office and the UK Centre for Ecology and Hydrology have predicted that the variety of wildfires will enhance globally by 14% by 2030 and 30% by 2050.
Scientists warn local weather change is making heatwaves and dry spells extra extended, intense and frequent.
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