A Met Office warning has been issued for the whole of Northern Ireland as the weather is set to take a dramatic turn.
Sunshine and warmer temperatures have dominated over the past few days, but from 6pm on Saturday evening, the Met Office has a yellow warning in place for heavy showers and thunderstorms.
The warning is in place from 6pm on Saturday, September 21, until 9pm on Sunday, September 22.
Across the country heavy showers and thunderstorms are expected on Saturday evening, perhaps merging into longer spells of rain on Sunday.
A Met Office forecaster said: "Heavy showers and thunderstorms are expected to move north to affect Northern Ireland later on Saturday and into Saturday night. While many places are likely to stay dry, there is a risk of 30-40 mm in a few hours which may lead to localised flooding and travel disruption.
"Strong, gusty winds are also likely at first. During Sunday, the showers are likely to merge into a longer period of rain. This perhaps heaviest over the south and west of Northern Ireland, with the potential for a further 30-40 mm in 3-6 hours in a few places."
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