According to the Portuguese Institute of the Sea and Atmosphere (IPMA), for the Eastern group, which comprises the islands of Santa Maria and São Miguel, the yellow warning for precipitation started at 10:00 local time (11:00 in Lisbon) and is due to last until 24:00.

On Terceira, Faial, Pico, São Jorge and Graciosa islands (Central group), the warning is in effect between 20:00 today and 12:00 on Friday.

In both cases, rain can be accompanied by thunderstorms.