RTE weather presenter Evelyn Cusack has said that the eye of Storm Emma which is over Portugal at the moment will 'clash' with the Siberian air over Ireland in the next two days.
The clash will bring gusts of wind up to 100km/h/110km/h in the East and South of the country with temperatures as low as minus eight degrees in Ireland tonight.
Speaking at the press conference for the National Emergency Coordination Group, Cusack, who is Deputy Head of Forecasting at Met Éireann, said that usually a storm like Emma would bring rain to Ireland but because of the cold Siberian air over the country at the moment, snow is expected.
"Severe snow showers coming across Scotland and east Britain and that is why we updated to red this morning with those showers turning heavier and thunderstorms reported.
"We have the very cold Siberian air pushing across these snow showers and as Emma pushes northwards you are going to get a clash of the two air masses and this is our prediction for Friday.
"The storm centre of Emma predicted to travel northwestwards with quite a tight gradient over Ireland and there will be gale force eight to strong gale force nine winds over land with gusts of 100km/h/110km/h.
"That is why we have issued a status red for Munster and Leinster from tomorrow evening, tomorrow night and Friday morning, because it is an easterly wind, eastern areas will be most effected and southern areas.
"So when we say Leinster and Munster it is really eastern counties of Leinster and southern counties of Munster and then as one moves northwestwards the intensity of the precipitation will diminish but geographically we are saying much of Leinster and Munster," she explained.