The districts of Lisbon and Setúbal will be under an orange warning between 3pm and 6pm, while Évora, Faro, Santarém, Leiria and Beja will extend the warning until 9pm, according to a note from IPMA.
Portalegre activates the orange warning between 6pm and 9pm, when Castelo Branco implements the same alert, until midnight on Wednesday.
The orange warning is issued by IPMA whenever there is a meteorological situation of moderate to high risk.