Storm Lilian has been named by the UK Met Office – what impacts can we expect in Ireland?
Below valid at 12pm on Thursday 22nd August 2024.
The low-pressure system which will deepen and become Storm Lilian over the next 24 hours can be seen in the mid-Atlantic on the 00 UTC surface analysis chart with its associated fronts.
Fig 1: Surface analysis chart 00UTC
Wind Impacts
While the main impacts associated with Storm Lilian will be felt across the UK in the early hours of tomorrow morning, Met Éireann have issued yellow level wind and rain warnings.
Forecaster Brandon Creagh said: “The centre of the low pressure system is expected to track across the middle of country tonight, bringing unseasonably strong and gusty south to southwest winds which will veer west to northwest as the system tracks eastwards.
The strongest of the winds will occur overnight but with the trees still in full leaf, people need to be careful of debris or branches on the roads tomorrow morning.”
Fig 2: Model output wind and gusts.
Gale warnings are also in effect in eastern and southern sea areas.
Ireland is currently in a period of very high tides. There is a High Tide Advisory in effect for all coasts of Ireland, expiring at 12:00 noon tomorrow, Friday, leading to the continued risk of coastal flooding and wave overtopping on coasts affected by onshore winds.
Rainfall Impacts
This system will also bring heavy rainfall over a short time period with current model output showing the likelihood of exceeding 20mm accumulations over a 6 hour period overnight.
Fig 3: Model output cloud and rainfall.
Status yellow rainfall warnings are in effect for a number of counties. Potential impacts from this heavy rainfall include:
Localised flooding
Difficult travelling conditions
Storm Lilian is the first “L” named storm since storm naming commenced in 2015.
Why was the name “Lilian” chosen?
Storm Lilian is named after Lilian Bland, who was an Anglo-Irish journalist and pioneer aviator. She was the first woman in Ireland to build and fly an aircraft, and quite possibly the world’s first woman to build her own airplane, the Bland Mayfly.
Meteorologists Commentary – Storm Lilian
Storm Lilian has been named by the UK Met Office – what impacts can we expect in Ireland?
Below valid at 12pm on Thursday 22nd August 2024.
The low-pressure system which will deepen and become Storm Lilian over the next 24 hours can be seen in the mid-Atlantic on the 00 UTC surface analysis chart with its associated fronts.
Fig 1: Surface analysis chart 00UTC
Wind Impacts
While the main impacts associated with Storm Lilian will be felt across the UK in the early hours of tomorrow morning, Met Éireann have issued yellow level wind and rain warnings.
Forecaster Brandon Creagh said: “The centre of the low pressure system is expected to track across the middle of country tonight, bringing unseasonably strong and gusty south to southwest winds which will veer west to northwest as the system tracks eastwards.
The strongest of the winds will occur overnight but with the trees still in full leaf, people need to be careful of debris or branches on the roads tomorrow morning.”
Fig 2: Model output wind and gusts.
Gale warnings are also in effect in eastern and southern sea areas.
Ireland is currently in a period of very high tides. There is a High Tide Advisory in effect for all coasts of Ireland, expiring at 12:00 noon tomorrow, Friday, leading to the continued risk of coastal flooding and wave overtopping on coasts affected by onshore winds.
Rainfall Impacts
This system will also bring heavy rainfall over a short time period with current model output showing the likelihood of exceeding 20mm accumulations over a 6 hour period overnight.
Fig 3: Model output cloud and rainfall.
Status yellow rainfall warnings are in effect for a number of counties. Potential impacts from this heavy rainfall include:
Storm Lilian is the first “L” named storm since storm naming commenced in 2015.
Why was the name “Lilian” chosen?
Storm Lilian is named after Lilian Bland, who was an Anglo-Irish journalist and pioneer aviator. She was the first woman in Ireland to build and fly an aircraft, and quite possibly the world’s first woman to build her own airplane, the Bland Mayfly.
For further information on storm naming check https://www.met.ie/forecasts/storm-names.
Eolas Fúinn