The UK has been warned that after the most prolonged June heatwave for 20 years, a severe, major outbreak of thunderstorms could lead to flight delays, flooding and disruption, to parts of the UK.
See if your area is at risk with our interactive map.
Today temperatures reached 32.4C in places, similar values are forecast tomorrow and on Wednesday. However the heat and humidity will really build so that by Wednesday, some very large thunderstorms could bring severe disruption to parts of the UK. On Tuesday, some beefy yet isolated intense thunderstorms are forecast to develop across Central areas of England. Whereas on Wednesday there is a more widespread risk of severe weather;
Tuesday 20th June:
Wednesday 21st June:
As you can see, as Tuesday's risk is fairly isolated, during Wednesday instability from the Atlantic will combined with the intense heat to trigger off some very lively storms, particularly in the morning and into early afternoon across Scotland and Northern Ireland, and then in the afternoon some isolated, slow moving corkers are possible across Northern England, North Wales and parts of the North Midlands as indicated on our warning map.
We are most concerned about Scotland and Northern Ireland where here rainfall totals in excess of 50mm could lead to flooding in places, whereas the risk further South in Northern England, North Wales and southwards into the Midlands is more for large hail, strong winds and also flooding. The risk of thunderstorms on Wednesday also extends Southwards into parts of SW England ie Wilshire, Somerset, and the South Midlands, due to the higher temps here the thunderstorms could be particularly intense. During Wednesday night most of the storms will fade but rumble on well into the evening in the North.
Storms by nature are hit and miss therefore it is impossible to guarantee that a certain area will be impacted by storms but you are urged to be aware of the situation and the likelihood of thunderstorms on Wednesday.