• Deceptichum
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    415 months ago

    That one little fella in South America - must have been confusing as fuck for them.

    • @mmddmm@lemm.ee
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      305 months ago

      Is the only one Brazil ever recognized as a hurricane. But it’s believed that they happen every once in a while, they are just not classified correctly.

        • @mmddmm@lemm.ee
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          55 months ago

          As a hurricane, not as a cyclone. There’s a minimum intensity necessary to get classified as a hurricane.

          (I’ve written cyclone by mistake, and changed the comment. You may be reading an older version of it.)

    • @humanspiral@lemmy.ca
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      35 months ago

      Rainy season in Northern Africa has a lot of land to form storms from sand as cloud seeds. Gulf and Carribean sea are almost always hot in summer. Relatively shallow. Northern South America also has rainy season and helps form storms that go north.

      South America doesn’t get as much help from Africa storm formation, and south atlantic does not have a history of being very hot.

  • Majorllama
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    235 months ago

    I’m digging that one hurricane in south America that looks lost.

  • @Melatonin@lemmy.dbzer0.comOP
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    175 months ago

    I think a better question is why are the northern hemisphere hurricanes so much more feathery and beautiful than those raggedy ass southern hemisphere hurricanes and tropical storms.

    • @Sylvartas@lemmy.dbzer0.com
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      195 months ago

      Because there are way more in the northern hemisphere I assume ? Probably due to greater differential between water and air temp in general in the northern hemisphere due to currents and shit

    • SebaDC
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      205 months ago

      I’m guessing it’s because they rotate in different direction in the northern and Southern hemisphere.

      So crossing would imply switching direction, which would require to put that energy “somewhere” and it’s physically not possible.

      • @Maalus@lemmy.world
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        25 months ago

        No. It’s because the earth spins faster there. Them turning a certain direction is a result, not a cause.

        • SebaDC
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          -45 months ago

          A) The Earth spins at the same speed. What you are talking about is the tangential speed.

          B) The tangential speed is not much faster at the equator than 100km South or North of it.

          C) The speed difference would not explain why they don’t cross the equator. It may explain (partially) why there are no hurricanes further away from the equator.

            • SebaDC
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              -35 months ago

              Considering that I did not use bullet points, I guess you are talking about yourself 🤣

              • JackbyDev
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                45 months ago

                For someone being so hyper pedantic you failed to realize they didn’t use anything even close to bullet points.

                • SebaDC
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                  -15 months ago

                  Wow! Tough crowd. Seriously, at least I explained my reasoning for why hurricanes do not cross the equator. All they did was make either wrong or poorly formulated claims without any kind of explanation, and then throw insults.

                  Saying that “The Earth spins faster” makes no sense, especially in this context: why would the equator spin significantly faster than 100km away from it?!? And why would this negligible speed difference prevent hurricane from crossing that line?

                  If you want to correct someone, at least do it right.

  • Inf_V
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    115 months ago

    really interesting. what’s the reason why?

    • @Dave@lemmy.nz
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      835 months ago

      Stole explanation from r/ELI5:

      When you stand on the north pole how fast are you moving relative to the earth’s core?

      Zero, you just spin around in place once every 24 hours.

      When you stand on the equator how fast are you moving?

      1000mph, you have to circumnavigate the earth in a day.

      This difference doesn’t matter much when you throw a baseball, but it absolutely matters when you’re a storm the size of a country. > This disparity in relative speed rotates the storm since the equatorial side is moving faster than the polar side, and it provides the swirling structure of the hurricane.

      But here’s the problem - storms in the north spin counter-clockwise and storms in the south spin clockwise.

      That means to cross the equator you have to stop and reverse direction. That’s not happening, and hurricanes never track near the equator because neither the storm itself nor the prevailing winds that push it around can approach this reversal boundary.

    • @ShittyBeatlesFCPres@lemmy.world
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      145 months ago

      Probably Coriolis effect? I’m not a professional meteorologist but I am an amateur meteorologist. I live in New Orleans and hurricanes follow somewhat predictable patterns. (Maybe not always where you can pinpoint exactly where they’re going but they tend to turn north in the northern hemisphere and south in the southern hemisphere.)

      • Rhaedas
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        65 months ago

        You can also look at some of the coastlines and see the millions of years of erosion from the same patterns once the continents moved more into what we have now.

      • @NocturnalMorning@lemmy.world
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        5 months ago

        The coriolis effect is a fictitious force, it’s just an artifact of not doing measurements in an inertial reference frame.

        Edit: If I were to attribute it to anything, I’d attribute it to the actual rotation of the earth.

  • @jqubed@lemmy.world
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    95 months ago

    Interesting that the western Pacific seems to have so many more category 5 than the Atlantic, and while the South Pacific and Indian Ocean have plenty, the South Atlantic has basically none.

  • Scribbd
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    55 months ago

    A yo mama joke that only works with this context:

    Yo momma’s ass so fat, no hurricane dares to cross her ass crack.

  • @humanspiral@lemmy.ca
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    45 months ago

    The form above 10^* lattitude. Their natural direction is to go straight towards their respective poles, but high pressure systems steer them with the trade winds. Extremely rare for a storm to even go slightly towards the equator