Sky forecast for the next few hours: severe storm warnings for several regions

BarcelonaThe week has begun with a significant change in the weather. The arrival of an active cold front has reactivated instability, with the reappearance of showers and heavy storms in several regions. More than 20 or 30 l/m² have already accumulated in some cases, but in some areas of the Ebro River, the accumulations are higher. There have been some downpours accompanied by strong winds, especially in the Ebro River regions and some in the Valencian Community, although the rain has been very erratic, and there are areas where not a drop has yet fallen (you will find all the data at the end of this report). Showers and storms will continue to appear in many areas over the next few hours.

Civil Protection has activated the Inuncat plan in the alert phase, and Meteocat maintains warnings for heavy or torrential rain in many regions, especially in the south of the country. Downpours can locally produce more than 30 or 40 l/m² in just half an hour and cause rivers and streams to swell. Caution! Furthermore, in the south of the country, some records may locally reach 100 l/m² throughout the entire event. All this with a clear drop in temperatures, which will cause a marked cooling. The Diada long weekend will start off much calmer, but further changes may occur between Friday and Saturday.

Night and early morning: showers everywhere

Caution should be exercised between the afternoon and evening, as storms could be strong and bring downpours to Terres de l'Ebre, Castelló, and nearby areas in southern Catalonia. In addition, irregular storms will also continue in the Pyrenees, the Pre-Pyrenees, and nearby areas. During the night and early morning, showers could reach virtually any region, with local storms becoming intense. There will also be showers and thunderstorms in the Balearic Islands, especially between Mallorca and Menorca. Generally cooler weather and northerly winds will be expected in the northern Alt Empordà.

Tuesday: The weather remains very unsettled.

Between morning and early afternoon, the risk of heavy showers and thunderstorms will remain between the coast and the pre-coastal areas of Tarragona and Barcelona. However, showers may appear irregularly in other areas, especially in the center and north of the country. In the afternoon, the sky will be changeable in Catalonia, with scattered showers still remaining, especially in the northern half and on the Costa Daurada. Caution should be exercised between the Valencian Community and the Balearic Islands, as thunderstorms may be strong or very strong.

All this with temperatures set to drop significantly everywhere, both day and night. A markedly cooler atmosphere will be expected early in the day, and mild to slightly warmer in the middle of the day. Many temperatures will hover between 22 and 26°C, lower in mountainous areas. The north wind will blow moderately in the Empordà region, especially in the north of the region. There will also be some morning mistral winds on the Ebro.

Diada Bridge with a little bit of everything

On Wednesday, calm and sunshine will gain ground, but scattered showers will linger in the northeast. Thursday is Catalonia's National Day and a national holiday. It appears to be the most stable day of the week, with little risk of precipitation. However, the weather forecast is predicting further increases in instability starting Friday, with the risk of some showers and thunderstorms. This is still an uncertain situation that we will need to confirm.

Temperatures will rise again thanks to more sunshine, but will remain around normal levels after this refreshment. A cool morning, even with chilly temperatures in mountain areas, will be mildly warm at midday. Only towards the West and inland areas will they approach 30°C this week.

Showers and severe thunderstorms in the balance.

The active cold front that arrived this Monday has caused a marked increase in instability. It has been a generally busy day, although it hasn't rained everywhere. However, where showers and storms have fallen, they have done so in earnest. The areas most affected by the rain have been, for example, the Penedès, the northeast interior, the Pyrenees and Pre-Pyrenees, and the Terres de l'Ebre, with real downpours in some cases. There are records already exceeding 20 or 30 l/m², most of which fell in a short period of time, and even more rain is expected in the coming hours. In fact, on the Ebro River, rainfall has already exceeded 50 l/m². And the downpours in the Valencian Country are particularly notable, especially in the regions between Alicante and Valencia, where more than 40 or 50 l/m² have accumulated in just a few minutes, and the wind gusts have been very strong, causing damage and trees falling due to snapping. These are some of the most notable records so far in Catalonia:

• 68 l/m²: Mas de Barberans
• 48 l/m²: Berga
• 40 l/m²: Almoster
• 36 l/m²: Els Alfacs
• 35 l/m²: Ulldecona
• 33 l/m²: Sau Reservoir
• 37 l/m²: Sant Martí Sarroca
• 27 l/m²: San Pedro de Riudebitlles
• 26 l/m²: Queralt Sanctuary
• 23 l/m²: La Sénia
• 20 l/m²: Darnius-Boadella Swamp
• 18 l/m²: Molló
• 17 l/m²: Cantonigroso
• 17 l/m²: Lac Redon
• 17 l/m²: Los Hostalets de Pierola
• 17 l/m²: The Village
• 15 l/m²: Constantine