‘Blood rain’ warning as Sahara dust plume approaches UK | Weather | News

The UK’s endless downpours are about to take a strange turn; Forecasters are warning that dark red ‘blood rain’ will fall on parts of the country this week.

After some areas have seen rainfall every day throughout 2026, Britain is now facing an additional weather phenomenon as a massive cloud of red dust from the Sahara Desert hurtles towards the country.

Scientists at the Copernicus Atmospheric Monitoring Service (CAMS) are monitoring the approaching plume that will turn ordinary British drizzle into eerie blood-red showers as African particles collide with moisture in the atmosphere.

Experts dismiss health concerns

However, scientists have confirmed that the dramatic visual spectacle does not pose a danger to public health.

Car owners face the primary inconvenience; When precipitation evaporates, a slightly reddish layer of residue settles on vehicles and other outdoor items.

CAMS Senior Scientist Mark Parrington said: “Our latest forecast suggests it will pass mostly over southern England and the Channel at higher altitudes in the atmosphere, but may cause some wet precipitation at ground level if combined with weather forecasts showing some rain.”

Desert winds carry particles thousands of kilometers away

Satellite tracking shows the massive aerosol cloud moving west over the North Atlantic Ocean towards Europe.

Saharan sand particles make up most of the smoke, fueled by smoke from seasonal agricultural fires in Equatorial Africa, the Daily Mail reported.

Strong winds that sweep across desert landscapes fling fine particles skyward; here northward upper atmospheric currents can carry material as far as the British Isles; It can travel distances exceeding several thousand miles, sometimes at extremely high altitudes.

Parrington noted that these intercontinental dust migrations occurred with remarkable frequency.

“Large-scale aerosol outflow into the North Atlantic is not unusual at this time of year; seasonal biomass burning in equatorial Africa typically peaks between January and March, and Calima winds carry Saharan dust across the ocean,” he explained.

“The high intensity of this particular episode is notable, as our forecasts show a plume reaching northwestern parts of Europe.”

Landing is expected on Tuesday afternoon.

Computer models suggest the dust mass will reach British soil on Tuesday and combine with falling rain to create blood-coloured precipitation.

“It looks likely to pass within a few hours on Tuesday afternoon,” Mr Parrington said.

“Our latest forecast runs until the end of Tuesday but there are some indications there could be further transit from the south of England on Wednesday.”

The evening sky may turn red

Atmospheric perturbation can change more than just the color of precipitation; Later in the day, horizons may shift towards dark orange and red tones.

“An aerosol optical depth value of 1 typically means hazy skies, with values ​​in cloud relatively high,” Mr. Parrington said.

“So it could lead to more reddish/orange skies Tuesday evening.”

While biblical terminology such as ‘rain of blood’ and ruby ​​skies may trigger concern, the main legacy of this phenomenon would involve dirty windshields.

“It is possible that there may be some buildup on the ground which could leave dusty residue on cars and windows as they pass by,” Mr Parrington added.

Rains will be effective until mid-March

The blood rain forecast comes on the heels of Met Office warnings that waterlogged conditions will continue until the middle of next month.

Sarah Davies, Head of Energy and Environment at the Met Office, said: “Wet weather has continued in many areas over the past few weeks, with recurring Atlantic low pressure systems making ground conditions particularly saturated over southern parts of the UK.

“Although it is likely to remain variable over the next few weeks, with more rainfall occurring at times, the focus of the wettest conditions is expected to shift to the western hills where we would normally expect this time of year.

“However, given that some areas elsewhere remain vulnerable following recent rains, further rainfall as we move towards early spring has a greater chance of causing some impacts than normal for these types of installations.”