Widespread travel disruption and flooding is predicted across the country as conditions deteriorate from Thursday into Friday morning, with a series of Met Office weather warnings already in force.
Donegal, Mayo, Sligo, Clare, Kerry, Dublin, Louth, Wexford, Wicklow, Meath, Cork and Waterford have also been issued with a status Orange warning for the Storm.
"The rain is expected to be accompanied by strong winds, which may increase autumnal leaf fall and potential for blocked drains/culverts, heightening the potential for flooding".
"We have issued orange warnings for the coastal counties, and yellow warnings for the inland counties".
Storm Callum has been upgraded from a yellow to an amber weather warning, which will cover a large part of Pembrokeshire, Carmarthenshire and Ceredigion on Friday, October 12 and Saturday, October 13. The main concern we are anxious about for the area is the amount of rainfall throughout Saturday itself.
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One of the hardest-hit spots was Mexico Beach , where Michael crashed ashore as a Category 4 monster with 155mph winds. At least 13 people reportedly died in Central America over the weekend as a result of storm rains and floods.
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Morgan said: "I hope they come through the storm, I hope they do a fantastic performance, and I hope they rise above the fray". However, the BBC has stated the dance couple will perform on the show on Saturday.
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As it came ashore, Michael was just shy of a Category 5 - defined as a storm packing wind speeds of 157 miles per hour or above. Last Thursday, forecasters were saying that what was then called Tropical Storm Michael " does not pose a threat to land ".
Winds will be strongest overnight and early on Friday, gusting between 90 and 110 km/h at coasts.
Officials said on Thursday morning that many schools could face closure on Friday, but that any decisions on school or business closures, as well as impacts to public transport systems, will not become fully apparent until tomorrow morning.
The Road Safety Authority (RSA) has urged drivers to exercise extreme caution over the coming days.
"There are a number of locations on our network which have been susceptible to flooding during extreme weather and as such we are looking at possible amendments to services in partnership with Network Rail to reduce the impact of this weather".
"It may only be mid-October but it appears nearly certain that Ireland is going to be hit by its third storm of the 2018/2019 winter season and it's vital that we all take a look at our own road behaviour and adapt it accordingly to minimise incidents during this weather", Conor Faughnan, AA Director of Consumer Affairs stated.
Last month, Storm Ali battered the country, causing two deaths and widespread infrastructural damage.