The storm 'Therese' is significantly impacting the Canary Islands, with forecasts from the State Meteorological Agency (Aemet) indicating unstable weather conditions across the archipelago. Heavy and widespread rains are expected, especially in regions with higher elevations, where some areas might also experience thunderstorms and hail. The Aemet reports that accumulations will be highest on the southwestern slopes of the islands such as La Palma, Tenerife, and Gran Canaria.

In addition to rainfall, the storm will also bring snow to higher altitudes, with snow expected above 1,900 to 2,200 meters. This winter storm could lead to challenging travel conditions in mountainous areas and raises concerns regarding possible landslides or flooding in regions susceptible to such weather phenomena. The Aemet has issued an orange alert for these heavy rains and storms, underscoring the potential severity of the situation.

As 'Therese' extends to southern mainland Spain, the rest of the country can expect overcast skies and localized showers, marking a significant change in the weather for many regions. The implications of this storm could be far-reaching, affecting agriculture, infrastructure, and daily life in the impacted areas as communities brace for the challenges brought by this weather event.