Update 2pm: The forecast for wild seas and strong winds has now been extended throughout the weekend and strengthened slightly, with winds gusting to 100km/h predicted.
Update 10am: As forecast, it is the north west and south east of the island that are being worst affected, though the north generally is very windy, with the San Bartolomé de Tejina primary school in La Laguna losing its roof overnight. Part of the school has been closed, but the infants classes continue. Meanwhile in the south, a Los Gigantes hotel had its windows blown in.
As usual with the southeast – southwest divide, reports confirm that it is very windy from the Golf del Sur up the east coast, but sheltered and very much less affected on the west coast from Palm Mar up to Los Gigantes. At altitude, however, the winds are very strong. There are no reports of any transport affected apart from one cancellation of the small ferry between Lanzarote and La Graciosa. The TF21 has been reopened.
Update 24 January: The TF-24 (La Esperanza) and TF-21 (La Orotava) access roads to Teide are closed in the national park because of ice on the carriageway. And, because I’ve been asked already, schools remain open.
Original post 23 January: The government has issued an alert, and Aemet has set an orange alert, for high winds in the western islands and Gran Canaria from tonight. There is also a yellow alert for wild seas. North-easterly winds gusting to 90km/h are forecast, and are expected to be strongest at altitude, particularly in the north west and south east. At present the alert lasts from midnight tonight until midnight tomorrow.