In the case of the islands of the Central group (Terceira, São Jorge, Pico, Graciosa, and Faial), the yellow warning, which has been active since 09:06 local time (10:06 in Lisbon), is valid until 21:00 local (22:00 in Lisbon) today.
In the Eastern group, the yellow warning will be active between 12:00 local time (13:00 in Lisbon) and 21:00 local time (22:00 in Lisbon) today.
The yellow warning, the least serious on a scale of three, is issued whenever there is a risk situation for certain activities depending on the weather situation.