Met Office verdict on ‘erratic vortex’ set to impact UK after BBC storm forecast

Met Office verdict on ‘erratic vortex’ set to impact UK after BBC storm forecast Met Office forecasters say an 'erratic vortex' could dictate weather in the UK next week, while BBC meteorologists warn 'stormy' conditions may develop too Weather conditions in the UK look set to be impacted by an “erratic vortex” next week, according to the Met Office. Met Office meteorologist Aidan McGivern described the vortex to the south of the UK as a “swirl in the winds at the height of the jet stream”, which is expected to lead to rain falling over parts of the UK from Tuesday. While high pressure is expected to dominate across much of the country as we head into next week, this vortex is causing “uncertainty”, he said. Mr McGivern explained: “One big cause for uncertainty into next week is this upper vortex, this area of low pressure cut off from the main jet stream… When these happen, they can move erratically. They’re a bit harder to predict.” “As a result, predicting exactly where this upper vortex is going to be, and where the main thrust of high pressure will end up, well those are the two sources of uncertainty throughout most of next week.” He also explained how different weather models show different outcomes as a result of this uncertainty. The vortex should sit to the south of the UK and send bands of rain into south-western areas from Tuesday, but it awaits to be seen how heavy this rain will be. However, most parts of the UK will be “dry with high pressure nearby” at the start of next week. By Friday, the different models suggest Atlantic weather will “break through” - potentially bringing significant rainfall. The models vary in exactly how long the dry weather will remain before the Atlantic systems reach our shores. BBC Weather forecast for next week BBC Weather’s forecast paints a similar picture, and states “stormy” conditions could hit the UK by the end of next week. “The latest forecast data increasingly points towards a change in the weather pattern as we head into the new week,” it says “High pressure is expected to retreat, allowing Atlantic low-pressure systems bearing rain, wind and milder air to move in as the jet stream strengthens.” It adds that some of the developing low-pressure systems could “become particularly deep”, meaning some “very wet and windy conditions” are on the cards, along with the potential for “stormy weather towards the end of the week and into the weekend”.