A DANA located this Sunday in the interior of the peninsula, It will evolve into a cold storm from Monday, and will intensify on Tuesdayleaving himeven torrential rains in the Valencian Community and Murcia, which may exceed 150 liters per square meter in 24 hoursalong with very strong gusts of wind, according to a special warning of adverse phenomena sent today by the State Meteorological Agency (AEMET). The DANA will remain almost stationary for much of the week and will produce “widespread precipitation” in the peninsula and the Balearic Islands, with greater probability and intensity on the Mediterranean slope.
Communities on alert for rain this Sunday
This Sunday, the extreme north of the peninsula, as well as the Mediterranean coast and the southeast of Andalusia, with eight communities affected, are on yellow alert due to heavy rains. In the Balearic Islands and Catalonia, rainfall is expected to reach 20 liters per square meter, according to the State Meteorological Agency (Aemet).
The rest of the communities that have activated alerts are: Andalusia, Asturias, Cantabria, Castilla y León, Basque Country and the Valencian Community. Rainfall will be up to 20 liters per square meter in the Balearic Islands, especially in Mallorca, Ibiza and Formentera. In Tarragona, accumulations of up to 60 liters are expected in a 12-hour period and also in a large part of the Valencian Community. In the Basque Country, the Cantabrian mountain range, the north of Burgos in Castilla y León, Cantabria, Asturias and the Andalusian provinces of Almería and Granada, up to 15 liters per square meter could accumulate in one hour.
DANA will evolve into a cold storm
Starting tomorrow, Monday, the most adverse part of the episode will begin. It is likely that DANA will move towards the southwest until it is near the Gulf of Cádiz, while cyclogenesis will occur at low levels, giving rise to a drop in surface area around the southern coast of the peninsula starting in the afternoon. -evening. “In this way, DANA will most likely evolve into a cold storm”according to the AEMET.
As a consequence, an easterly wind will be established in the Mediterranean that will intensify on Tuesday, favoring the arrival of a large amount of humidity to the east of the peninsula. Very strong showers are expected without being able to rule out, today, that they may reach torrential intensity locally, in addition to being persistent and accompanied by very strong gusts of wind. There is still uncertainty about the exact location of the largest accumulations.
What areas will be the most affected?
The heaviest rains are expected to be concentrated on Monday in Tarragona and Castellón, in addition to the Strait, with the southeast of the peninsula beginning to receive heavy rainfall since the afternoon. Tuesday, scheduled as the climax of this episode, The greatest probability of these intense precipitations will be in the peninsular Mediterranean area (less likely in Barcelona and Girona) and around the Strait and, to a lesser extent, in the center and southern half. In some parts of the Valencian Community and Murcia, this rainfall could exceed 150 liters per square meter in 24 hours.
Starting Thursday, and although the forecast is still uncertainthe low pressure is expected to move towards Portugal. This would increase the chances of strong Precipitation in the south and southwest of the peninsulaas well as in the Balearic Islands, while the intensity in the peninsular Mediterranean would decrease. Regarding the duration of this episode, weather models suggest that the rains could continue until at least Thursday, November 31, with some scenarios extending until Saturday, November 2.
More than 100 l/m2 in 24 hours
On the other hand, Meteored indicates that the meteorological situation will become more adverse on Tuesday, when DANA moves northward, accompanied by an easterly flow caused by a storm located north of Algeria. The meteorological portal advances that the torrential rains could mainly affect the Valencian Community, the Region of Murcia and areas of Andalusia.
In the provinces of Valencia and Castellón, the 100 liters per square meter in 24 hourss, while In the Region of Murcia, Almería and the Strait area, the accumulated would reach at least 50 liters per square meter. Significant rains are also expected, with accumulations between 20 and 30 liters per square meter, in the southern Extremadura, Community of Madrid, Castilla-La Mancha and southern Aragon.
On Wednesday, intense rainfall would continue in parts of Catalonia, the Valencian Community and Andalusia, especially in the Strait area.. Adding those accumulated over the next few days, until Wednesday night, rains are expected to reach 200 liters per square meter in coastal and pre-coastal areas of the Valencian Community and the Strait area, says Meteored. However, they warn that any change in the location of DANA could significantly alter the distribution of rainfall.