Severe wind storm, Floris, may inflict destructive gusts; weather alerts issued across eight counties
Weather Warning Issued Across Ireland and Northern Ireland
A series of weather warnings have been issued across Ireland and Northern Ireland, with Storm Floris expected to bring strong winds and heavy rain to the region.
On Tuesday, the weather is expected to be dry with hazy sunshine and isolated showers developing in the afternoon. Highs of 16 to 19 degrees are forecasted for the day. In Northern Ireland, the UK Met Office has issued a similar weather warning, covering the entire region.
The previous day, Monday, is set to be more challenging. Met Eireann has issued a wind and rain warning for eight counties: Clare, Galway, Mayo, Sligo, Cavan, Donegal, Monaghan, and Leitrim. The warning will take effect starting at 2am for the first four counties and 4am for the second group, and will last until 1pm for the first group and 4pm for the second group.
Storm Floris is expected to make landfall during the early hours of Monday, and the main hazards associated with the storm include difficult traveling conditions, possible damage to temporary structures, fallen branches or loose objects, power outages, and wave overtopping. Met Eireann has warned of possible fallen trees, debris, power outages, wave overtopping, and structural damage in the areas affected by the warning. Spells of heavy rain and a chance of thunder are expected in these areas, with potential lightning and localised flooding.
The storm is expected to bring widespread rain, which will be heaviest in the north and northwest, and outdoor events may be affected by the storm conditions in the areas where the warning is in effect. Highs of 16-22 degrees are expected on Monday.
On Sunday, clear and brighter spells are expected following cloud and rain in the morning. However, Sunday night will be wet and windy as rain spreads from the west and Storm Floris tracks north of Ireland. A few well-scattered showers are set to develop on Sunday amid highs of 16-22 degrees.
Winds and rain are expected to gradually ease during the day on Monday following the weather warnings. A status yellow rain warning comes into effect at 2am for Donegal, Galway, Leitrim, Mayo, and Sligo and lasts until 10am.
During Storm Floris's impact on August 4, 2025, strong, gusty westerly winds with median speeds of 60-70 km/h and gusts up to 90 km/h were recorded in Galway (Ceann Mhása). The storm led to yellow wind and rain warnings for the same counties that are currently under warning. Approximately 10,000 homes, farms, and businesses lost power, especially in Donegal and Roscommon, although most power was restored within a day, with only around 270 customers still out of service the following morning.
Despite the "explosive cyclogenesis" nature of the storm, local authorities indicated that the overall effects were relatively minor, with disruptions mainly due to timing during the Bank Holiday weekend rather than the storm’s severity itself. Additional impacts included fallen trees reported across counties, slight travel disruption, and cancellations of some flights in Northern Ireland.
- On Tuesday, despite the weather warning, the weather is forecasted to be dry with hazy sunshine and isolated showers developing in the afternoon, as opposed to the stormy conditions in the previous days.
- The UK Met Office, similar to Met Eireann, has issued a weather warning for Northern Ireland, suggesting that weather-forecasting services are monitoring the weather situation across both Ireland and Northern Ireland.
