A "tornado watch" zone was issued for Northern Ireland, as well as parts of Scotland and northern England by the Tornado and Storm Research Organisation (Torro) on Sunday afternoon.
It means a "strong tornado" is possible in those regions.
Met Office forecaster Marco Petagna told the PA news agency: "There is a potential that we could see the odd isolated tornado largely tied in with the squally cold front mainly in western parts of the UK on Sunday evening.
"They can cause some significant damage but often on a very localised scale, they often don't tend to last very long."
More to follow