Aemet has activated a yellow warning for storms and heavy rain in the Comunitat Valenciana. After a wildfire scorched more than 630 hectares in the Sierra Calderona, Sunday's forecast brings showers and thunderstorms, with maximum temperatures expected to reach 32°C in Alicante, 31°C in Castellón and 30°C in València. The unstable conditions could bring relief to fire-hit areas, but localized downpours may also cause further complications.
Aemet says the day will begin with low clouds and scattered showers, particularly along exposed coastal areas. Cloud cover is expected to thin near the coast as the hours progress, though afternoon storms remain a threat. Rainfall will vary sharply: some locations may see impressive precipitation, while nearby areas could remain almost dry. The agency warns that parts of the Castellón coast and northern Valencia could receive up to 20 litres of rain per square metre within an hour, prompting the yellow alert.
Unsettled weather is expected to continue into the start of the week. For Monday, August 24, Aemet has extended the yellow alert to the entire Comunitat Valenciana, forecasting further showers and thunderstorms, with possible lightning activity. This pattern follows a period of intense heat and fire risk that has already affected the region's natural parks and communities.
In a separate severe-weather episode later in October, the Generalitat focused its emergency response on La Safor and Marina Alta as storms threatened to return to areas already hit by heavy rain. Juan Carlos Valderrama, the Generalitat Valenciana’s regional emergency minister, described the forecast as “unstable” and urged residents to watch for changing conditions. Barx recorded more than 340 litres per square metre in 24 hours. Intense rainfall was also reported in Moraira, Teulada, Puerto de Xàbia, Ròtova, Palma de Gandia and Gandia. Those October conditions were distinct from the August forecast.
The October episode also showed how quickly localized rainfall can disrupt daily life. AEMET warnings across parts of Valencia, Castellón and Alicante included the possibility of hail and strong gusts. Officials urged people in affected areas to avoid unnecessary travel and monitor official updates. During that separate event, approximately 87,000 students in more than 40 municipalities missed classes, and Renfe suspended services on the C1 Valencia-Gandia and C2 Valencia-Xàtiva-Moixent routes, along with some medium- and long-distance services.
Recent severe storms show the potential impact of this weather in the area. For example, violent downbursts recently caused impressive damage in several towns across Valencia province. The damage is a reminder to heed official warnings and stay alert to changing conditions.
Aemet's yellow alert signals a moderate risk and urges residents and visitors to remain cautious, especially in areas prone to flooding or landslides. Local authorities typically advise securing outdoor objects and avoiding unnecessary travel during peak storm periods. They also recommend monitoring updates from official channels. While rain may ease drought and fire conditions, it can bring sudden hazards, particularly in recently burned or unstable terrain.
Spain's weather alert system provides early notice of potentially dangerous conditions, giving emergency services and the public time to prepare. In the Comunitat Valenciana, such warnings are common in late summer, when high temperatures and atmospheric instability often combine to produce intense, localized storms.
