Met Eireann have warned that Storm Eunice is approaching "quickly" in their latest update on the approaching weather event.
There are already three weather warnings in place, including a red alert for four counties.
Rain, high winds and snow are set to batter the country on Friday, and we're already getting an early sign of things as we approach Thursday evening.
A statement from the national forecaster read: "Storm Eunice has now reached our southwest approaches and will track quickly towards Ireland tonight.
Attached to a picture of their latest satellite images, they continued: "Visible is a large cloud head and frontal cloud-band indicative of explosive cyclogenesis as Storm Eunice rapidly intensifies."
Cyclogenesis is the development or strengthening of cyclonic circulation in the atmosphere.
It is perhaps more better known as a 'weather bomb'. The process rapidly lowers the pressure at the centre of the storm causing devastatingly strong winds and sometimes heavy rainfall.
It is often caused by tropic cyclones moving north when warm air meets colder air and the rising warmer air rises quickly and increases its rotation.
