August 2021 heatwave: UK temperatures set to soar, Met Office long-term forecast
Another heat wave could potentially hit the UK in a few weeks depending on conditions, a long-term forecast has predicted.
While the UK experienced a brief summer spell during the July heatwave, a semblance of sunshine seemed like a long shot after weeks of rain, thunderstorms and flooding.
However, the Met Office‘s long-term forecast suggests that all of this is about to change.
While the start of the month promises to be unpredictable and changeable, with spells of drought possible between downpours, thunderstorms and potential torrential downpours, the second half of the month – starting on the 16th – promises to be much drier.
There are currently signals of a drier and warmer-than-average period from mid-August, the Met Office said in its forecast, although unstable weather in the north-west of England remains possible and that “short-lived thunderstorms” are expected in the southeast. .
According to BBC Monthly outlook, high pressures in the Mediterranean Sea are expected to push storms north and drier weather is expected to “spread south”, dragging with it a tropical air mass.
The change of weather in mid-August can be gradual, the BBC said, taking days or potentially a week to appear.
Then the temperatures should be slightly warmer than normal but a second heat wave depends on the right conditions.
the BBC said: “Temperatures are expected to tend to be warmer than normal until the end of August, with a few hot days possible if the high pressure moves overhead for too long. If the peak persists above, a heat wave may develop, but confidence is low about it.
“The chances of heat increase later in the month, but the high pressure will have to move to the right place for it to happen.”
Long-term forecasts are often not as accurate as shorter-term forecasts. Indeed, when one examines the forecast beyond five days into the future, “the chaotic nature of the atmosphere begins to come into play,” the Met Office said.
He said: “Therefore, although we can still predict the general feel of the weather with a relatively high level of accuracy using our ensemble models, it becomes more difficult to provide local detail at a level of accuracy. as high as our short-term forecast. “