Ireland is enjoying some unusually dry, warm and sunny weather this spring and early summer and it's all thanks to an 'Omega block'. So what is this blocking area of high pressure all about? Will it continue? What does this have to do with the Stratospheric Polar Vortex? And does this mean we're in for a decent summer? Met Éireann climatologist Paul Moore explains all https://www.rte.ie/brainstorm/2025/0516/1513060-ireland-weather-paul-moore-met-eireann-omega-block-high-pressure/