rain

How and when to enjoy the tears of San Lorenzo, the biggest rain of summer stars

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The most important astronomical event is approaching every summer, so we are going to tell you How and when can you see the Perseids of 2025. This is a true show where, in its peak of activity, we can enjoy the arrival of up to 100 meteors per hour. Therefore, we are going to tell you the best dates to be able to see this phenomenon, since although you can see some meteors fall there are still several days until its peak of activity. We will begin by telling you when it is the day of maximum activity, and then we will give you advice to visualize them as well as possible. When to see the Perseids 2025 Perseids are a phenomenon that will remain active between July 17 and August 24. But its moment of maximum activity It will be at dawn from August 12 to 13. That is the date on which this peak of activity will be reached in which we can observe up to 100 meteors per hour. The best time to see the Perseida will be between 22:00 on August 12 and 10:00 the next day, and the highest activity interval is expected to be between 2 and 5 in the morning of August 13, which is when the point from which the meteors seem to approach is at the highest point in the sky. However, This year there are bad news with the moonsince the rain of stars coincides with the full moon phase planned for August 9. The full moon brightness will make it very difficult to see the weakest meteors, so it will subtract spectacularity, although you will continue to see many of them. In addition, you can try to make the observation after the night peak, when the moonlight loses intensity. This is due to the orbital movement of the earth in space. This year it will be after midnight when we begin to guide on the “advance” side. This means that we will be facing the meteorites that come, and any particle in our orbital trajectory will enter the atmosphere at 11-72 km per second and will look like a meteor. How and where to see them Perseids will be able to see anywhere in Spain, both in the Peninsula and in the archipelagos. They can be seen anywhere in the skyso you do not need to look for a concrete orientation. A fleeting star may appear anywhere in the sky and at any time. The only requirement to see them clearly is to go to an elevated area and with a clear skythat is far from a city and its light pollution. The latter will make the sky look darker, improving the visibility of the stars. This year you should try to look when the moon is at its lowest points, since it is in its full phase. In addition, in any of the cases it is always advisable Look at the opposite direction to the moon in heaven. It is not because there is an area where there is more, but because there will be more darkness and it will be easier to see them. Cover image | Pxhere.com In Xataka Basics | 19 apps and tools to see and have more information about stars and constellations

Spain has received more rain than ever this spring. And yet it is unable to get rid of the ghost of the drought

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Europe is not having a good time right now. Many weeks of warmer temperatures and rainfall in historical minimums, they are helping drought tentacles expand A wide strip that goes from the British islands to Crimea and the Anatolia. This is made clear by Copernicus’s latest report, the European land observation system. And yet, none of that has affected Spain. On the contrary, we have had months of unusual rains and whole weeks of temperatures below the average. The problem? In spite of everything, the vast majority of points in “alert” by drought They are on the peninsula. A ghost that comes to stay. If drought is a ghost (as we usually say, a little impossible, journalists), the southeast of the country is a delighted house. An Indian cemetery. With the exception of the coast of Malaga and Granada and the Catalan basins, the long Spanish Mediterranean arch is full of red dots (alert) and oranges (of concern for drought). But also of blue areas, of course. According to the report ‘Droough in EuropeApril 2025, the Tagus, Guadiana and Andalusian Mediterranean basins are the only ones in the entire continent that have had a positive rain anomaly. And there are the problem and the paradox. After all, this spring has become a perfect example to understand the problems that the country is going through: the problems to manage the hydrological reserves of the system in an integral way. Some problems that create distrust at all levels. Because, a few weeks ago, it was announced that the government changed the Tajo-Segura transfer game rules; But no special emphasis has been placed on the dirty war between both basins. In fact, no one is happy: while the Tagus Chair “See the proposal insufficient“Of the government, the Murcian irrigators They prepare mobilizations. All this while the Hydrological Confederation of the Safe It is immersed in controversies on manipulated data and lack of control. In what situation does all this leave us? As we commented a few weeks ago“After the rains of March and with the reservoirs of Half Spain to overflow” another battle began, who stays that water. It will not be an easy battle because, how has it been happening for 30 yearsIn the end we lose all. Image | Copernicus In Xataka | After the rains of March and with the reservoirs of Media Spain to overflow, another battle begins: who stays that water

Where we had heat waves before, Aemet only expects rain and cold

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Although there are many areas that have not noticed, the first weekend has been starring large storms in much of the country. And, according to weather models, The thing is not going to stay there. Throughout this week, a new anticyclonic block in the British islands will be consolidated. It is not clear if this is going to open, again, the doors of the Atlantic (some models draw a ‘bridge’ between the Azores and Ireland), but right now the probability that vaguada or cold strokes will begin to get off the cold or storms is very high. So much so that Monday we already have rains. Catalonia, the north of the Valencian Community, the Balearic Islands and the interior of the plateau will have rains, hailstorms and strong winds throughout Monday. During Tuesday the storms will be primarily paid in the northwest third of the country. On Wednesday, According to Samuel Bienerthe storms will be reinforced in “The East Castilla-La Mancha, Sierras de Granada, Jaén and Almería, interior of the region of Murcia, Teruel and the Valencian Community.” But, as I say, that’s just the appetizer. Because if the models get right We will have a Dana (or a cold storm, it is not yet clear) near the peninsula at the end of the week. Be that as it may, this assures us a very unstable first Miad: unstable skies, water and Reasonable temperatures – Well below normal ,. A rare spring. If we lift the view and look at a couple more weeks, the forecasts are quite clear: everything seems to indicate that a long storm period awaits us. As they explain in CazatorentasIt is a direct consequence of the blockade. That draws a spring very different from the previous ones. Different? Not so much because of the temperatures that, with nuances, are within normal in most of the country. The nuances are that, on the coasts, they will be “slightly warmer than normal” and that, at the southwest end, they will be “slightly colder than normal.” This, already, gives us a good track of the expected rains. Except the Canary Islands and the Northwest Third, The models wait that rainfall in May is more intense than normal. Everything seems to indicate that summer can more and the tap will end up closing, but all this planets interesting things. The most important is what will happen now. Change of trend or simply an extremely weird year? Image | ECMWF In Xataka | May is putting a March face: Aemet’s great question is if 2025 will definitely end the drought

The rain is back and the models say it will not leave until after Holy Week

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The Nuria Borrasca is going to continue sending one front behind another until Friday, but we will only have one day of respite. Sunday It is already expected Another storm that will leave more water in Galicia, Extremadura and Andalucía. That is, after a truce too short, the “Atlantic doors” have opened again and now the question is whether they will continue to open a long time or if (sooner rather than later) the tentacles of the summer will begin to drag us to stability, heat and clear skies. Right now there is only one more or less clear thing: there are many possibilities for the rains to accompany us until after Holy Week. Nuria: rain and a lot of wind. Before entering into the subject and seeing what the models say about the coming weeks, you have to be attentive to Nuria. In essence, this high impact storm has a structure very similar to those we have seen during the last month. From Hehco, it is fifth with a name that follows more or less the same route. That means water, a lot of water. More than 80 liters in areas of the southwest. Most likely Madrid takes the palm. The great defernecia of this storm is The wind. It has already caused red alerts in the Canary Islands and winds of more than 130 kilometers per hour are expected. On Friday the intense winds will be noticed in the peninsula (although, luckily, they will not reach the speeds of the palm). ECMWF The week of 7 to 14. The European model, as we can see in the superior image, shows a more humid trend than normal in the southern half of the peninsula. That is what green shadow means. White tells us about values ​​within the nomality and orange of a slightly more dry situation than normal. It is not uncommon: the configuration of the last weeks favors the southwest and moves away Als Borrasca from the Cantabrian cornice. ECMWF Easter week. But that is only the appetizer: the European model foresees a Holy Week wetter than normal throughout the national territory. Does this mean that it will rain throughout the week? Actually, no. So many days are missing that we cannot make reliable predictions. The European model does is draw a general trend. There is no way of knowing what will happen specifically. For example, the following week the dominant trend is the one that tells us about normality in most of Spain (with the exceptions of the archipelagos, Galicia and the Cantabrian cornice). But, of course, there is still a lot of cloth to cut. What can we expect? In the short term, intense rain and hurricane winds. Once Nuria passes, the situation is very open. The possibility that the storm hall remains open is on the table and is winning whole every day. However, we talk about deadlines too broad for our prediction systems to be reliable. At least, rain is not going to miss us. Image | In Xataka |

The question that is being asked half Spain is if the rain is over. We have some answers

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Martinho is giving His latest layers on the French coast and, although it is possible that it still affects us Some high impact storm Throughout the week, the mechanism that has made March one of the rainiest months of registration is starting to dissipate. The remains of the Borrascas train. In the next few days, some “residual activity” will still be. The Mediterranean aspect will have some instabildiad, there will be a small Dana and certain showers derived from the situation in Italy. However, the differences with the previous week They will speak for themselves: More sun, less rain and generalized rise in temperatures in most of the country. So, the rain is over? This is worth stopping and explaining it well. What seems to be over is THE BORRASCAS HORS which had been configured in the Atlantic thanks to a blocking anticyclone in northern Europe and the help of Azores. The consequence of that, like Duncan Wingen saidis that the models anticipate a dry week on the Peninsula (especially in the west). We spend between 30 and 60 l/m2 below normal for this time of year. The same rains something in the Cantabrian cornice and the east of the Balearic Islands. Does it mean that it will not rain anymore? It doesn’t have to. What we mean is that we return to a more normal situation. The intense rain is over, constant and without rest. But nothing more than that. Are spring? In coastal areas, temperatures will begin to “prevail”, yes. It will not be rare to find the thermometers above 20 degrees in the Guadalquivir and southern Galicia. However, it will not happen the same throughout the country because, without overcast skies, night temperatures are going to sink into the peninsula. We talk about three degrees lower than normal. A new March. It is true that this March is being “historical” in many ways. In fact, Peninsula soils They are practically saturated due to rainfall. But we would not be wrong if we thought it is a completely isolated fact. The Roberto Granda’s analysis tell us That, except in counted areas of the country, March is becoming increasingly rainy. That has implications for everyone. Not only are the problems that can be given in the field if we do not start recovering some sun: the impact for the health that will have is so good The pollen boom we are going to have In the coming weeks. Image | ECMWF In Xataka | Saharian dust clouds reach Spain and Europe. The other problem is what accompanies them

While Laurence hits Spain, Aemet fears another four weeks of rain

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Just a few hours ago, the high impact storm Laurence was east of the Azores. Not anymore. And on his way to the east Three fronts have already been defined that are impacting the Iberian Peninsula (or are about to do so). After the little parenthesis of the weekend, the rain is back. And it seems that he plans to stay. Three fronts? The first, the warm (a hottest mass than what we have now on the country), is entering the Gulf of Cádiz and will leave heavy rains in the Guadalquivir valley. The second will be cold and will water much more water also entering the Southwest. And finally, an occlusive one will arrive (that is, a compressed mass between two others) that will be the coup of grace and the real problem when high accumulated and heavy rains. With the aggravating thing that, after hours and hours of rain, all drain systems will begin to be collapsed. Is it dangerous? In some areas it can become, yes. For example, As Álvaro Oliver explainsthe rains that will reach the central system “will clearly exceed 50 mm and even 100 mm at many points.” If we add to that the thaw that will occur, the situation can be complicated. And, beyond that, the rains They have no heavy to send. This is what Aemet tells. And, as we say, not only Laurence is going to leave “abundant rains in large areas of our country” and will breathe “temperate air” that will boost the thaw, is that “Wednesday will be a transition day between two storms: Thursday comes another with more rain “yet. Other? How long will this last? This question has two answers: the short is that we have no idea. We already know how variable the time in spring is. The long one, however, has a lot of crumb to analyze. Because If we look at ECMWF’s weekly modelsthe European weather model, we will see that the next four weeks appear with positive anomalies in rainfall. It is true that the one that has that most accentuated trend is this that we now start, but (always according to the model) the rainfall above normal can remain much longer than expected. Image | ECMWF | Sami Ullah In Xataka | If the question is when the rain is going to end, Aemet has bad news. Especially for Andalusia

If the question is when the rain is going to end, Aemet has bad news. Especially for Andalusia

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It has been raining in Andalusia since February 28. That is to say, As they said from Storm Málagathat is “15 consecutive days registering precipitation at some point.” But the thing does not end there, because it looks like this streak “could be extended for at least 8 more days.” What is happening in Andalusia? What is happening in Spain this March? The great Atlantic game. In recent days, Aemet Special fact emphasis In what we have been repeating for days: that a “anticyclone, displaced to northern Europe and another to the south of the Azores, (created) a wide corridor that allows the entrance of Atlantic storms from west to this.” On the one hand, the anticyclone to the north facilitates the circulation of these storms to low latitudes; On the other, the South Anticyclone facilitates the transport of humid and warm air from the Caribbean. Actually, it is nothing mysterious. In fact, it is A phenomenon relatively common that usually gives us great joys. What is happening now is that the pieces have conceded perfectly: the storms are powerful, they are well directed and the hall is lasting a more than considerable time. So much time that many farmers have already activated panic protocols. As we said a few days ago, “too much water suddenly creates problems.” The best example is Huelva: Strawberry crops can begin to rot (or infect with fungi) in full campaign. Yes, they are small problems if we compare them with the years of drought that we have been dragging, but They are problems after all. Problems that point out that, as usual, We do not have the necessary infrastructure nor well thought out plans. And what can we expect in the next few days? On paper and although it will continue raining in some areas of the country, the time time will give us a small truce. However, As Marta Almarcha points outthe latest updates suggest that new storms will arrive. The same Monday, without going any further, a new one will enter the southwest. And so again and again until at least next Friday (which is when). What we know from Monday. I would not want to close the subject without commenting what we know about the Borrasca on Monday; of Laurencethe twelfth storm of high impact of the season. Above all, because (in the Atlantic aspect) the rains can become very intense. In points of Huelva, Cádiz and the central system more than 100 l/m² can be collected in 24 hours. Again. We also have to keep in mind that all this water must be added a problem: the thaw. The subsidiary fronts of Konrad have left (or leave) enough snow in low levels. The rain will help melt that snow and that will be a “more problem” In the river flow. Image | ECMWF | Sami Ullah In Xataka | Aemet special notices are just the beginning: everything points to an extremely rainy March in Spain

The good news is that Aemet already knows when the Jana Borrasca will leave. The bad is that 10 more days of rain await us

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As of today, Monday, the BORRASCA JANA It will lose strength. But that does not mean that Aemet Go withdraw your notices by rains in half a country. And it is that the high -impact formation will continue with us generating instability, cloudy skies and generalized rainfall. Although, in reality, this seems only the beginning. Rain, rain and more rain. Although the eastern facade of the peninsula continues with His particular viacrucis (Especially in Alicante), the screws seem to have changed in the rest of the country: the largest accumulated will be in the south, both in the Atlantic and Eastern Andalusia aspect. Also in the central system. On the contrary, where the rains are less likely it is in the Cantabrian and the Northeast. In the Canary Islands there will be cloudy skies and scattered showers. But this will have an end … right? Of course he will have it, the problem is that we do not know when it will be. Jana is going to weaken And that, perhaps, we give us a little respite. But, as Aemet points out, “the rain will continue during the week of March 10 to 16”. After the borrasca jana“new fronts associated with Atlantic storms will sweep our country, with rainfall in large areas.” Again, the most abundant seems to be in the environment of the central and west system of Andalusia. How is this possible? A few days ago we counted that It was being established A huge blocking anticyclone between Greenland and Scandinavia. That was very good news because I was going to force the Atlantic storms to turn south. To this has been added something else: that the temperature of the surface water of the ocean is above the average and, thanks to the joint work between the blocking anticyclone and that of the Azores, an atmospheric river has been articulated that insuffes us with moisture from the Caribbean. The result is 10 days of generalized rains. That is to say, An unusually wet March. Is something of Holy Week know? This year, Holy Week falls between April 13 and 21. That is, there is a lot of time left. However, Aemet has published A climatological analysis. Unlike the predictions, what this type of analysis is investigated is the “standard time” for those days taking into account the historic. For example, According to the agency“In most of the southern peninsular half the average temperatures vary between 13 and 17 ºC” while “in the northern half we find lower values, with temperatures near the 9 ° C on the plateau and close to the 0 ºC in the summits.” Aemet The problem is that, as we can see in the superior graph, these “spring dates are characterized by their great climatic variability.” In recent years, temperatures have been high and, a priori, it is what we should expect. But there we have the year 2012 to show us that the situation can turn around when we least expect them. Image | ECMWF In Xataka | Aemet special notices are just the beginning: everything points to an extremely rainy March in Spain

100 mm of rain and gusts up to 90 km/h

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When it seemed that the heavy rains seen throughout this week in Levante and other adjacent areas was going to send, a new front has opened in the west peninsular. A new storm arrives today, which implies new rainfall, you are accompanied Atlantic storm. The State Meteorology Agency (Aemet) has given New details about the arrival of the new Atlantic storm to the Peninsula. Borrasca that, according to the agency’s forecasts, will leave us “abundant rainfall and intense winds” on the peninsula. The arrival of this storm implies a change in the distribution of rains in the Peninsula, until today caused by a Mediterranean storm that has left important rainfall in the south and west of the country. With the arrival of fronts associated with the new storm, rainfall will become generalized. Of the day of transition to the day of maximum activity. Although the effects of the new storm will begin to feel today in different places of the Peninsula, meteorologists They agree to indicate that Saturday will be the day in which the storm reaches its peak activity. What can we expect? The latest spare parts of the Mediterranean storm are leaving “strong and/or persistent rainfall” In part of the east peninsular, affecting areas such as Castellón and east of Catalonia. The arrival of the fronts could also leave persistent rainfall, with accumulated 40 mm in 12 hours in areas such as Western Andalusia, Sanabria and part of the central system. Meanwhile, the new creeper, high Ebro, Navarra, Navarra, Western Pyrenees, Western Central System, Mountains of Ourense and Western Coast of Galicia, ” Aemet’s prediction. Saturday, day “more adverse episode”, The accumulated could reach 100 mm in 24 hours, being the most affected area will be Western and Central Andalusia. With regard to the wind, “very strong” gusts are expected, up to 90 km/h in mountainous systems, although they could also be seen in lesser altitude. New change. Aemet’s forecasts point out that Borrasca will lose strength already on Sunday, although its effects will still be noted, as progress towards the east, also on Monday. From there the uncertainty in the forecasts is very high, so we will have to wait until you know what time it will bring us next week. In Xataka | Spain has good news between so much rain this March: there is finally water in the swamps Image | ECMWF

Emirates financed a study to know if it can cause rain in the desert with solar farms. The answer is yes

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As water It becomes a more precious resource than oila group of scientists has analyzed if solar farms can have an even more beneficial effect than generating energy with sunlight: making it rain in the desert, offering the communities most affected by drought water and renewable energy at the same time . Climate engineering against drought. Given the drama of its waning water resources, the United Arab Emirates government financed a study published by German researchers in Earth System Dynamics. The researchers proposed to create artificial heat islands by installing large black surfaces (ideally, solar panel farms) to enhance precipitation in arid areas. A promising result. The scientists simulated the impact of these surfaces with advanced models and obtained surprising results. A heat island of 20 km² induces an increase in rains 571,616 m³ a day. This could be translated into water supplies for about 31,000 people. Only with an area of ​​20 km². But the interesting thing about study is not its quantitative results, but the possibility of implementing these surfaces taking advantage of existing infrastructure, such as photovoltaic solar panels. This solution would not only address water scarcity but also contribute to renewable energy production. How it works. That a farm of solar panels can induce rain is not a very intuitive concept, but it is something that He has been studying for a while, particularly in the Sahara. These facilities, by absorbing heat with their dark panels, could create ascending currents that, under the right conditions, would trigger rain storms. When these farms exceed a certain size (about 15 km²), the heat absorbed by the panels, in contrast to the most reflective sand, significantly increases the convection currents necessary for cloud formation. Areas where we know is viable. For this process to work, a source of atmospheric humidity is needed. The models showed that the wet winds of great height from the Persian Gulf are enough, to the joy of Emirates. The researchers also identified other areas of the world where it could work, such as Namibia and the Peninsula of Baja California in Mexico. Some limitations. The initiative requires darker surfaces than those commonly produced by solar panel manufacturers. Some panels are even reflective to improve your thermal performance. However, the Construction of increasingly large solar farmsespecially in China, they open the door to try the idea in the real world. It won’t be simple, of course. The implementation of gigantic heat islands raises logistic, but also ecological and social challenges. For example, how would these surfaces affect local biodiversity? What would be the visual and social impact on nearby communities? You need more research and pilot tests to discover it. The case of Emirates. The United Arab Emirates government, which financed the study, is facing the shortage of two ways, mainly: desalination and sowing of clouds. The program of Cloud sowing through airplanes Plan about 300 missions every year, but like desalination, it is an expensive method with limitations. In this context, large solar farm surfaces are a promising alternative. Image | Pixabay In Xataka | The regions of the world most threatened by drought, collected in a great interactive map In Xataka | The biggest problem of Perovskita’s solar panels was its durability. China has just resolved it *An earlier version of this article was published in February 2024

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