A cluster of slow-moving heavy showers is forecasted to move inland across The Wirral, Merseyside, and western parts of Greater Manchester on Sunday morning. While some areas may only experience light rain, a few places could see up to 30-40 mm of rain within a 2-3 hour period. To avoid potential delays, it is advised to check road conditions, bus and train schedules, and adjust travel plans accordingly. Stay prepared for rapidly changing weather warnings and stay updated with the latest forecast for your area from the Met Office.