Update 14 August: After a very stormy night, again with incredible amounts of thunder and lightning, and torrential rain in parts of Tenerife – Santa Cruz and Anaga were particularly badly hit, the Canarian Government has finalized its alert for rain as of 8.30am. There might still be an occasional shower, but the weather system is on the way out, and temperatures are also forecast to come down from the insufferably hot and humid levels of the past week or so.
Update 12 August: And it’s not over yet! The Canarian Government has issued an alert for a very uncertain and unstable period of “tropical weather” over the next 48 hours. If the forecasts are right, it’s going to continue to be hot, windy and wet. In addition, the Met Office has issued yellow alerts for rain and wind, and “costeros” (see more HERE). Apart from the risks of cold water shock, therefore, there is a risk from strong currents and high waves. Please take even greater care than usual in the sea over the next few days.
Update 9 August: The forecast is firmer now, with Aemet issuing a yellow alert for rain tomorrow in Tenerife and the entire western province, as well as Gran Canaria. The Canarian Government has also issued an official prealert for rains from midnight tonight throughout the archipelago. Some areas will get no more than a somewhat blustery and cloudy day, but where there is rain, and it seems there’ll be a fair bit of it, it could be locally torrential.
Original post 8 August: Instability is the word for the weekend, with increasing likelihood of rain towards Monday, meteorologists advise. They say the situation is still developing, but that Aemet’s Hirlam model, above, shows some 20-30mm falling on Monday, at least in the higher areas of the central islands, accompanied by thunder and lightning. Already some 170 lightning bolts were measured over the Canaries between 2am and 8am, over 100 of them in the south of Gran Canaria and Tenerife. Gran Canaria, indeed, has had torrential rain and thunderstorms this morning, some of which got as far as Tenerife too, but with nothing like the force felt in south Gran Canaria. There will be further updates from Aemet and local meteorologists over the coming hours and days, I have no doubt.