Yellow weather warnings issued for heat and thunderstorms
The Portuguese Institute for Sea and Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA) has issued yellow warnings for mainland Portugal due to a combination of high temperatures and thunderstorms. The North and Centre regions are expected to see storm activity, while Lisbon, Leiria, the Tagus Valley, and the Alentejo face heat-related risks. Additionally, the Algarve coast is under a warning for rough sea conditions.
A red warning is the highest alert level issued by Portugal's weather agency, the Portuguese Institute for the Sea and the Atmosphere (Instituto Português do Mar e da Atmosfera or IPMA), used when conditions pose a very high risk to life and property. Under a red warning authorities may close roads, suspend transport and advise people to avoid coastal and flood‑prone areas, so follow civil protection instructions during the Friday–Saturday storm period.
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