Updated at 10pm
Met Éireann has upgraded the status red warning, its most severe weather warning, to cover all of the country.
The Department of Agriculture has informed staff that its entire network of offices across the country will close on Monday 16 October.
Teagas said its colleges will close while the Department of Education said on Sunday night that all schools will remain closed on Monday.
Marts in Cork, Kerry and Waterford said they will not have sales on Monday with others expected to follow.
The status red warning will last from 6am on Monday 16 October to 3am on Tuesday 17 October.
Between 40mm and 100m of rain is all forecast to fall with the western seaboard set to receive the worst of the downpours.
Updated at 7.30pm
Met Éireann included new counties this Sunday on the list covered by a status red wind warning for Monday. Counties Limerick, Wexford and Waterford are now under the highest-level alert status, with gusts in excess of 130km/h forecast. This is in addition to the red warning already issued for counties Galway, Mayo, Clare, Cork and Kerry.
A status orange wind warning applies to the rest of the country.
Weather Warnings updated see: https://t.co/X6NncUghZ9 pic.twitter.com/DR9PCr0WDs
— Met Éireann (@MetEireann) October 15, 2017
Heavy rainfall is also forecast, with a status orange warning now in place for Connacht and counties Wexford, Donegal, Clare, Cork, Kerry, Limerick and Waterford, where more than 40mm of rain is possible.
A yellow alert with 25mm to 40mm of expected rain applies to the rest of the country.
Minister for Agriculture Michael Creed has called on farmers to follow closely the advice of the authorities as the storm hits. "Priority is obviously the safety of people and I would reiterate the advice that only essential travel should be taken. For farmers they should ensure that their yards are secured by securing loose objects," Minister Creed said.
He advised farmers and all people in rural areas to:
Closures
The following agricultural colleges have advised that they will remain closed all day on Monday:
Some marts have also decided not to hold sales planned on Monday:
Farmers are advised to check with their mart, factory, co-op or other agricultural services providers whether they are open on Monday.