A rapidly deepening area of low pressure to the south of Ireland (Storm Chandra) will allow winds to increase to reach severe gale force overnight into Tuesday.
Those winds will peak before dawn, then easing late morning.
East or southeast winds will mean 40-45mph with gusts widely 55-65mph which will lead to disruption to travel as well as a risk of some damage due to fallen trees etc.
Rain
An area of patchy rain will also arrive on Monday afternoon and evening will become persistent and sometimes heavy on Tuesday morning with rainfall accumulations of 10-20mm widely with 20-40mm over high ground.
This may lead to surface water flooding in prone locations.
Between 3am and 9am the rain may turn to sleet or snow over high ground which may lead to disruption on roads including the Mountain.
The sleet or snow will then turn back to rain late morning on Tuesday.
There is also a risk of minor coastal overtopping along exposed coasts and promenades around the time of high tide (5am) but neap tides should mitigate any significant impacts.