Update 5 August: I’ve just checked Aemet to see why everything was so calm in Tenerife, and why our house hadn’t blown down overnight … and the above chart might show why: the alert has been lifted from Tenerife. It’s going to be a nice calm weekend!
Aemet has forecast high winds from 9pm tonight, and has raised a yellow alert for gusts up to 70 km/h in all Tenerife except the north coast. The alert also applies to Gran Canarian, but from midnight, is extended to cover La Gomera, El Hierro and La Palma too. At present the alert lasts until midnight on Saturday night. There is also the possibility, particularly in the north, of some light squalls in the middle of Saturday.