Tenerife thunderstorms, heavy rain until 3 November, 06:00

What does the pre-alert mean for Tenerife?

Tenerife stays on pre-alert (prealerta) on Monday 2 November, one step below the alert stage. According to Atlántico Hoy, the alert (alerta) covers La Palma, El Hierro and La Gomera.

Overnight into Tuesday, the government expects very heavy showers in places on Tenerife. Atlántico Hoy says they will be more localised than on the western islands, and weaker at first on Gran Canaria.

Anyone out on Monday evening or overnight should expect rain and thunder. The government has not said which places in the south will be hit.

The sources mention no road closures and no cancelled flights or ferries on Tenerife. If you travel this evening or early tomorrow, check with your airline or ferry company to be safe.

When will it rain, and when will it improve?

The worst of it comes on the night from Monday to Tuesday, warns the Dirección General de Emergencias (the Canary Islands emergency authority), based on forecasts from the AEMET weather service. The rain should ease from 06:00 on Tuesday 3 November.

RTVC reports showers of more than 30 litres per square metre per hour on Monday until 15:00. Which islands that covers is not clear from the sources.

On Wednesday 4 November, Atlántico Hoy expects a new spell between 12:00 and 19:00. Showers and thunderstorms will form first in the interior of the mountainous islands and move to the coast later.

This spell should be weaker than the rain of recent days. According to RTVC, the weather service speaks of high uncertainty over place, strength and duration, so the forecast may change.

How should visitors and residents behave?

The Gobierno de Canarias (Canary Islands government) advises against driving where possible. If you must drive, stick to main roads, brake earlier and leave more distance.

The government says barrancos (ravines) are off limits, even when they are normally dry. Do not cross or park in them, because the water can rise suddenly, and keep clear of low-lying ground and dips too.

In a thunderstorm, the authorities advise avoiding open ground, high points, lone trees and metal structures. Before the storm arrives, secure doors, windows and anything the wind can catch.

The government advises against sea activities and exposed coasts while the situation lasts. In an emergency, call 112; for general information, 112 Canarias gives the number 012.

What has happened on La Palma, El Hierro and La Gomera?

Around 100 call-outs have reached the CECOES 112 emergency centre on Tenerife, La Palma, El Hierro and La Gomera, according to Atlántico Hoy. Most involved power cuts, water in homes and shops, overflowing drains and landslides on roads.

La Palma lost all its power on Monday morning, and supply was fully back by 10:30. Atlántico Hoy says the control rooms were reinforced.

On the eastern slope of La Palma, 62 litres per square metre fell in one hour and 138 litres in twelve hours, RTVC reports. In the mid-altitude areas of Breña Baja, 181.3 litres fell in five hours.

If you plan to travel to these three islands, expect disruption on the roads. The sources consulted named no specific closures and no cancelled flights or ferries.

How unusual is this situation?

On 21 October, the whole archipelago was on pre-alert, according to Diario de Avisos. AEMET had announced yellow warnings with up to 15 litres per hour and 60 litres in twelve hours.

On 22 October, RTVC reports, the government declared an alert for eastern La Palma, La Gomera and El Hierro, where orange warnings applied. Tenerife had yellow warnings with up to 15 litres per hour.

Storm Therese brought 272 litres per square metre to Las Cañadas del Teide between 19 and 25 March 2026, according to RTVC. On the Roque de los Muchachos on La Palma, the total was 615.2 litres.

The government's PEFMA emergency plan has three levels: pre-alert, alert and maximum alert. They follow the AEMET forecasts, while the yellow, orange and red colour warnings are the weather service's own separate system.

What is still unknown?

AEMET warning colours and rainfall totals for Tenerife from 2 to 4 November are not available, and Atlántico Hoy gives no colour codes. Hail on Tenerife is not confirmed, although the report's headline mentions it.

The government has not published when the pre-alert on Tenerife ends. The Wednesday spell comes only from Atlántico Hoy and has not been checked against AEMET.

The first spell should ease at 06:00 on Tuesday 3 November, so check 112 Canarias and AEMET then. Before Wednesday afternoon, look again at the current alert levels.