The second named storm of the season will bring a “multi-hazard event” of snow, rain and strong winds to parts of the UK this weekend, according to the Met Office.
Bert is set to sweep in tomorrow, bringing freezing temperatures and snow over the weekend.
Wind gusts of up to 70mph and heavy rain are expected in some areas as well as the potential of flooding and travel disruption.
Several yellow warnings for wind, rain and snow are in place across the UK.
Met Office spokesman Oli Claydon said Storm Bert was a “multi-hazard event”.
“We’re looking at strong winds, some high snowfall accumulation, heavy rain, all in various different parts of the UK,” he said.
“So it’s quite a complex weather set-up for the weekend. Generally speaking, it’s a very unsettled weekend of weather ahead.”
As Storm Bert hits the UK, areas where warnings are in place in the south and west are likely to be impacted by heavy rain tomorrow and Sunday.
Between 50-75 mm of rainfall is expected there on the weekend, while Wales and southwest England could see more than 100mm.
A yellow warning is also in place for coastal areas of southern England from tomorrow afternoon to Sunday evening, warning of strong winds and “dangerous” conditions.
There is already a yellow warning for heavy snow followed by a “rapid thaw” and rain tomorrow in northeast and northwest England, the West Midlands, Yorkshire, and much of Scotland.
Met Office deputy chief meteorologist Dan Holley said: “Storm Bert marks a shift to much milder air and wintry hazards will gradually diminish through the weekend, but heavy snowfall is expected across parts of northern England and Scotland for a time on Saturday, especially over higher ground, and warnings are in place.”