A shift in the jet stream is expected to bring low pressure to parts of the UK, with heavy rain and thunderstorms forecast for eight regions on Wednesday
Substantial rainfall is forecast for millions across Britain tomorrow as a change in the jet stream approaches.
Temperatures have fallen to roughly typical levels for this period following a record-shattering May heatwave, when the thermometer climbed above 35C in certain regions – representing the warmest temperatures ever recorded for May.
Nevertheless, thunderstorms and precipitation have swept through numerous areas. And while the Met Office indicates some “dry and bright weather” can be anticipated early tomorrow, forecasters warn: “It is not going to last.”
Met Office meteorologist Aidan McGivern explains that a fresh weather system “with a stronger-than-average and more south-shifted jet stream” will deliver low pressure to our coastline tomorrow.
“That means it swiftly turns wet across Northern Ireland, Wales and the South West first thing Wednesday morning, ” he said. “[It will be a] tricky rush hour as this rain moves north-eastwards, turning damp for central, eastern and northern England by the afternoon, as well as central and southern Scotland.”, reports the Mirror.
Mr McGivern noted that, despite skies clearing and brightening during the afternoon, there will remain “a lot of showers returning to Northern Ireland, the north and central England, as well as Wales in particular”.
UK regions facing heavy rain on Wednesday
- Northern Ireland
- Wales
- South West of England
- Central England
- Eastern England
- Northern England
- Southern Scotland
- Central Scotland
The Met Office previously indicated that temperatures could reach 21C in southern regions on Wednesday, while northern areas might see highs of 19C. Comparable conditions are anticipated throughout the remainder of the week.
BBC weather forecast for this week
The BBC weather outlook for the coming days states: “[Wednesday] will be cloudy and windy with outbreaks of rain pushing eastwards, these occasionally heavy with a risk of thunder in the north. Sunny spells developing in the south later in the afternoon.
“A mix of sunshine and heavy showers on Thursday. Risk of thunderstorms in the afternoon. Friday looks to see sunny spells interspersed with showers in the west and north. Drier elsewhere. Saturday will see mostly cloudy skies with a chance of light rain in western areas.”

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