Weather warning: Heavy rain to pound parts of NI - flooding and travel disruption possible
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The warning is in place between noon and 11.59pm.
According to the service the areas expected to be impacted in NI are Counties Down and Armagh.
The Met Office say that the public should expect: “spray and flooding on roads probably making journey times longer;
bus and train services probably affected with journey times taking longer; and flooding of a few homes and businesses possible.
They add: “Spells of heavy rain will affect southwest Scotland and parts of Northern Ireland on Wednesday, especially during the afternoon and evening.
“The rain will clear away southeastwards later on Wednesday evening”.