The Portuguese Institute for the Sea and Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA) has placed eleven mainland districts under a yellow weather warning for occasionally heavy rain and strong winds until the early hours of Tuesday, with wind gusts reported up to 90 km/h and rough seas warned for Madeira and the Azores. Districts named include Viana do Castelo, Braga, Porto, Lisbon, Setúbal, Leiria, Aveiro and others; warnings run until about 09:00 in some reports. Expats should expect travel and local disruption, check public-transport updates and secure outdoor items; coastal and island travel may be more affected.