Update 30 December: It cleared, and now it’s coming back, Aemet has issued a yellow alert for tomorrow for “dust in suspension” – that’s filthy air to you and me. It will affect east Tenerife most of all, but this alert is for the whole of the Canaries, not just Tenerife. Visibility will be reduced to around 3km. For the moment, the alert is for tomorrow starting at 9am, though this might be updated if the calima doesn’t clear quickly.
Original post 26 December: Christmas has been marked by a particularly dense calima with a very high particulate concentration making breathing difficult for many with respiratory conditions. It settled in around a week ago and has seemed very unwilling to move on, but the forecast for the next few days is positive, with it starting to clear away from tomorrow. By New Year’s Eve, normal service should be resumed, with clear – and clean – skies and a welcome moistness in the atmosphere, though there’s a possibility that temperatures will drop slightly, and maybe even a few drops of rain will wash away the last of the dust.