Danielle’s last surprise: the “unpredictable” storm could become a tropical cyclone again before touching the peninsula

Danielle shows signs of a cyclone before arriving: “It was a hurricane that became a storm and now it wants to be a tropical cyclone again” If the storm became a cyclone again, “it would be something extremely rare”, although “without important consequences “The rains it brings, like a storm, are going to be more stormy and irregular than initially expected. Danielle’s arrival is already noticeable on the peninsula. It was expected in the form of abundant, intense and constant rains, “the kind that soak the ground” and help alleviate the drought, according to the predictions made by meteorologists last week. But the predictions are updated with the passing of days, and it does not seem that they will be like that, finally. The latest forecasts indicate that it will not bring as much water as expected, or at least not in the way that was expected, but it will be “convective” precipitation. I mean, stormy. But it is that the former Hurricane Danielle, now turned into a storm, is not a typical storm either. It is still very unpredictable in its evolution. In fact, and this is the most surprising of all, it can become a tropical cyclone again, before fully discharging itself on the peninsula. “The storm is reversing the process and is starting to show tropical features. It is no longer one hundred percent a storm, but rather it is something hybrid, halfway between a storm and a tropical cyclone,” explains Meteored meteorologist Víctor González. And he warns: “This is very unusual, and less so close to the peninsula.” What’s happening? Storms in the center of the storm: a cyclone? they are beginning to develop intense storms over the sea in an organized and stable way. This structure, a kind of cluster of storms in the center of the storm, lives right now with the storm and wants to become the new engine,” the meteorologist explained to NIUS on Monday. “It was a hurricane that turned into a storm and now it wants to be a tropical cyclone again.” The meteorologist explains it and does not leave his astonishment. “He has made the switch twice and this is rare to see. If it managed to become a tropical cyclone, it would be extremely rare, ”he warns. “There are already several hours with uninterrupted storms in the center of the storm. That is a sign that a transition is beginning,” González warned on Monday. The image that he shared on his Twitter profile was very eloquent. This unusual process surprised all meteorologists. Juan Jesús González Alemán, who has been following ex-Hurricane Danielle very closely since even before it formed, warned of the same from his Twitter profile. The vortex of the storm Ex-#Danielle to the west of the Iberian Peninsula, with that convection/storms tied to the center, is showing characteristics of a subtropical cyclone. Everything indicates that it could gain a little more entity in the next few hours as it walks through the coast. pic.twitter.com/BKFaOcXVRf— JJ González Alemán (@glezjuanje) September 12, 2022 We are talking about a transition process that can be “immediate”. Former Hurricane Danielle, now a storm, could become a tropical cyclone again in just a few hours. “If in the end it happens and it becomes a cyclone again, the change would be immediate, in a matter of 12-24 hours.” Why? Because in order to carry out this transition, “it needs the sea, yes or yes, it is a process that we are going to see today or tomorrow at the latest,” he warned this Monday. Because it will soon make landfall, and when that happens, the storm loses strength. From hurricane to storm, and from storm to hurricane? If that change from storm to cyclone finally happened, a question arises: Could it end up in a hurricane again? “It’s complicated, because the sea is already much colder,” reassures González. And a basic ingredient in hurricane formation is a warm sea. The storm is located to the west of the peninsula, very close to the coast. The waters are colder than those that have brought her here. The meteorologist sees it as difficult for it to end up becoming a hurricane again, but with the unpredictable Danielle, no one closes the door to anything. “We don’t know how far it will go, because it is already a very rare thing to see this on the coast,” he acknowledges. “If this same thing were happening in the Gulf of Mexico, with those warm waters, it could become a hurricane again. But here, the Atlantic is 22 degrees. It is more than it should, even so, but if it happened it would be something very rare. In the footsteps of AlphaDe what there is background is what is happening now, its possible transition from storm to cyclone. “There was another storm, in 2020, that did it, and in this same area,” recalls the meteorologist. “The NHC called it Subtropical Storm Alpha and it made landfall in Portugal. But since she was very small, she left very bad weather and nothing else. This now is being very similar to what happened then. What would happen if Danielle became a cyclone now? “That it would go from being a storm to being this other thing, but without very important consequences for most of the peninsula,” explains González. “The only area that would have to be aware would be the coastal area of ​​Portugal.” And Galicia? The entire Atlantic coast, González explains, from Galicia to Cádiz, because it is not known exactly where it would enter. But here we are not talking about serious consequences either, but about “winds and rains that could increase suddenly,” he explains. And beyond the coast, for the rest of the peninsula, “the forecast would not change much” from the current one, he reassures. The “stormy” rains that Danielle brings stormy rains, as we said at the beginning. “The precipitations that she will leave are of convective origin”, explains González. “We are talking about rain, in many cases, in the form of storms.” Will they serve to mitigate the drought somewhat, as planned? “It was expected to be a more typical fall front, but with storms the rains become more irregular. They are going to be beneficial and relatively extensive, but there will be areas where they can be a little damaging, or very scarce. There may be storms that leave Massive amounts of water in some places, and not at all in others. They certainly won’t be as uniform as expected four or five days ago.” And this has an explanation. “The storm has already reached the end of its life, but we still have warm seas and the sun is still beating down, so there is energy for storm development.” The storms are more typical of October or November, well into the fall, but they are not frequent at this time. And the hotter the atmosphere is when they arrive, the more chance there is for storms. “The energy is released in a more intense way, because the seas are still at full temperature,” warns the meteorologist. “That’s why, and especially in coastal areas, it’s why there can be storms.” The storm will also bring strong winds to the entire peninsula.