Alert for the expected downpours in the next few hours

BarcelonaAfter a mostly calm and stable weekend, the approach of a front, associated with a cold air channel at altitude, has caused showers and thunderstorms to begin arriving in the western half of the country on Sunday afternoon. The rain will eventually reach the rest of the central and northern half of the country, leaving over 50-100 l/m² in some areas and giving September an unbeatable start in terms of available water reserves (you can find the accumulated rainfall data for this episode at the end of this report).

Monday: Showers will move to the eastern half

The week, and therefore meteorological autumn, will begin with a notable drop in temperature and with traces of instability in the eastern half. Rain could be heaviest in the Barcelona and Girona regions during the early morning and early morning, with much more stable weather in the western and southern half, where the mistral will help clear the sky of clouds. Showers should be monitored because some intense downpours could occur locally. A line of storms that will cross many regions from west to east during the early morning could remain fairly static in the central pre-coastal region, leaving accumulations of water that in many cases will easily exceed 40 or 50 l/m².

The Catalan Meteorological Service maintains a warning for intense rainfall during the early hours of Monday morning, affecting the regions of Barcelona and Girona. In addition, a warning is in effect for possible rainfall accumulations of more than 100 l/m2 over 24 hours, affecting the regions of Baix Llobregat, Vallès Occidental, Vallès Oriental, and La Selva.

Tuesday: Stability prevails

The weather will be more stable heading into Tuesday, although some showers could still occur in some coastal areas during the early morning. The rest of the day will be dominated by sunshine and periods of high and medium cloud cover, with no risk of precipitation. The minimum temperature will bottom out, and the early morning will be cool throughout, but midday will be somewhat milder, with highs of 30°C to 32°C in the south of the country.

Storm balance for the second half of Sunday

Since Sunday afternoon, several waves of showers and thunderstorms have circulated across the country, accumulating very heavy rainfall in some areas. As of 10:30 p.m. on Sunday, the following are notable:

• Ascó: 54 l/m²
• Alfarràs: 48 l/m²
• Balaguer Bone: 29 l/m²
• La Pobla de Segur: 22 l/m²
• Vinebre: 20 l/m²
• Baldomar: 18 l/m²
• Puigcerdá: 16 l/m²