A number of tornadoes have struck parts of Wales and the Midlands, BBC Weather says.
Brought in by a squally cold front, they are expected to clear to the east through the course of Thursday afternoon.
Any further tornados are likely to be confined to northern parts of the Midlands over the next couple of hours.
However, further squally winds are anticipated, BBC Weather added.
Storms and high winds have already caused damage to buildings and cars in mid and west Wales.
There were reports of a small tornado near Aberystwyth and the town’s RNLI station recorded a gust of 94mph.
Dyfed Powys Police said several roads are closed in the Machynlleth and Aberystwyth areas due to fallen trees.
Thomas Scarrott, director of the Clarach Bay Holiday Village, near Aberystwyth, said around 15 to 20 caravans had been upended and overturned.
He said: “As I was walking out of the door the wind started to increase and it went from zero to take cover in seconds. My initial thought was it must have been a tornado.”
Scottish Power has confirmed it is experiencing disruption to its power network in mid Wales.