Weather forecasters have warned of "thunderstorms" producing "hail" going into King Charles' Coronation weekend.
Starting today (Friday, May 5) and going into the early hours of Coronation day tomorrow (Saturday, May 6), Netweather forecaster Nick Finnis writes conditions could be grim, particularly in England.
He says that "surface heating of moist flow in sunny spells developing across England and Wales beneath cold mid-levels" will lead to "instability".
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This instability, in turn, "will support the development of heavy showers and thunderstorms".
There is also a risk of flooding in some parts of the south-west.
Finnis adds: "There are suggestions of a few localised areas of breeze convergence, such as around the Bristol Channel inland through the lower Severn Valley towards the SW Midlands driven by topography and perhaps also towards the east coast of England with an onshore component to the wind against the synoptic SWly flow.
"This potential convergence may focus convection and lead to a risk of localised flooding.
"Otherwise, heavier showers and thunderstorms may produce hail to 1-2cm, strong wind gusts and cloud-to-ground lightning. Storms should die out after dark, as surface heating fades."
Netweather also produced a map showing where is most at risk from thunderstorms today.
The east and parts of the north are most at risk, although there's a chance of thunder in almost all of England, Wales and Northern Ireland.
The Met Office has warned of thundery conditions across this weekend.
For today it said much of England, Wales and Northern Ireland faces "showers breaking out quite widely" and "heavy, thundery downpours".
The Met Office predicts Coronation day will be thunderstorm-free, but on Sunday it adds that the east of the UK again faces "thunder" and heavy showers.
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