High intensity rainfall and strong winds are expected on Monday, September 17, and Tuesday, September 18, due to the passage of Post Tropical Storm Helene. The storm is expected to make landfall in Ireland on Monday evening (local time), particularly affecting the southern and southeastern coasts. Significant transportation disruptions (air, rail, road, ferry) are possible in both countries, notably on Monday evening and Tuesday morning. Localized flooding and power outages are also possible.
Conditions are expected to clear in Ireland overnight Monday-Tuesday, and by Tuesday evening in the UK.
Individuals in the UK and Ireland are advised to monitor local weather reports, confirm travel reservations, and avoid flood-prone areas.