What changes on Tenerife on Friday 6 November?
On Tenerife, Friday 6 November brings only the edge of the storm, with possible light rain and stronger wind on the summits. Gran Canaria, Fuerteventura, Lanzarote and La Graciosa should see cloud and sun without notable rain.
The focus on Friday is the west of the archipelago, where La Palma may get heavy local rain. The rain may spread to the other western islands during the day, with spells on El Hierro and lighter rain on La Gomera.
No AEMET warning for Tenerife for 6 November was found. Anyone planning a trip to the high ground should still watch the wind, which the forecast says will pick up on the summits of Tenerife and La Palma.
For La Palma, the Canary Islands government has declared a prealerta (lowest alert level) for rain from 00:00 on Friday, through its Dirección General de Emergencias (emergency authority). More than 15 litres per square metre in one hour are possible there, most likely in the southern half of the island.
What applies on Saturday and Sunday?
The AEMET notice names Saturday as the start of heavy rain in the west of mainland Spain and in the Canaries. For the islands, forecasts already show Friday as the first rainy day, and a Saturday date for Tenerife is not confirmed.
On Sunday 8 November, the current forecasts say a front may cross the archipelago from west to east. Its strength and spread still need confirming, and no warning levels for 7 and 8 November had been published by Thursday.
Reports also mention possibly very strong gusts and rougher seas. None of the sources gives figures for wind or waves in the Canaries.
No information is available on closures of flights, ferries or roads. Anyone travelling at the weekend should ask their airline or ferry company for the latest.
Where does the name Bruna come from?
AEMET announced on Thursday 5 November that the Atlantic low is called Bruna. The Portuguese weather service IPMA chose the name, the second of 21 for the 2026/27 season, which began on 1 September 2026.
Spain, Portugal, France, Belgium, Luxembourg and Andorra share the list of names. Only systems that may have a big impact and need widespread warnings get a name.
According to AEMET, Bruna is deepening west of the Azores and will stay put at first. At the start of next week it nears the northwest of the peninsula, where Sunday to Tuesday, 8 to 10 November, are the wettest days.
AEMET expects waves of up to six metres off the coast of Galicia and just under four metres in western Andalucía. The weather service gives no such values for the Canaries.
How wet has it already been on the islands?
The islands have already had a wet start to the month, from another, unnamed storm between 31 October and 2 November. On Monday 2 November, AEMET had orange warnings for La Palma, La Gomera and El Hierro, for 30 litres per square metre in one hour.
Tenerife had yellow warnings, for 20 litres per square metre in one hour in the north and the wider area, and 15 litres on the other slopes. Bruna is therefore the second weather event within a few days.
Storm Therese showed in March 2026 what a named storm can do. The 112 Canarias control centre counted 1,783 call-outs up to 18:00 on Tuesday 24 March, 34.72% of them on Tenerife.
According to a report of 16 September 2026, Tenerife went from 8 to 27 areas with potential flood risk. Deputy minister Marcos Lorenzo, responsible for emergencies, said the plans would be checked before the first rains and barrancos (ravines) cleaned.
How should visitors and residents behave?
The prealerta is the lowest level of the Canaries weather plan PEFMA, set out in Decreto 18/2014 of 20 March 2014 in the BOC (the Canaries' official gazette). It signals no risk to the general public and applies to certain activities or particularly vulnerable places.
In heavy rain, the Dirección General de Emergencias advises avoiding unnecessary journeys and driving slowly. Keep windows and doors shut and follow instructions from the Cabildo (island government) and the town hall.
Nobody should cross flooded areas, barrancos, underpasses or garages, on foot or by car. If others are in danger, call 112; whether this advice has been repeated for Bruna is not confirmed.
AEMET sets the yellow, orange and red warning levels. Current warnings for the Canaries and reports from 112 Canarias show whether the picture changes for Sunday.
What happens after the weekend?
Bruna should lose intensity from Wednesday 11 November. AEMET does not rule out further heavy showers in the Canaries and on the mainland afterwards.
Sunday 8 November remains the main unknown, as the front's intensity and spread are not yet confirmed. The sources named no contacts at AEMET or the authorities.