5 ms·

Visualization of Harvey, Irma, and Jose

78 points by kompressor 9y ago

contingo 9y ago
Compare https://www.ventusky.com/?p=19.6;-77.9;4&l=wind&w=0xIAb9A9A https://www.ventusky.com/?p=19.6;-77.9;4&l=wind&w=0xIAb9A9A
- DigitalJack 9y ago
  That’s my new favorite. It’s interesting how the wind appears to spiral into the eye near ground level, and out from the eye at 12k meters. It’s like there is a toroidal shape where on the bottom, wind spirals in towards the eye, transitions to the top in the eyewall and spirals out at the top.
  - theoh 9y ago
    "rising air in the eyewall follows isolines of equal angular momentum, which [also] slope outward with height" (Wikipedia)
onewhonknocks 9y ago
*Katia
bllguo 9y ago
partial to windy.com myself https://www.windy.com/?20.633,-75.498,5,a:q3iI3 https://www.windy.com/?20.633,-75.498,5,a:q3iI3
- digikata 9y ago
  Whatever that last parameter is on the url, it causes mass rendering artifacts in Firefox/Linux. It works for me w/o. https://www.windy.com/?20.633,-75.498,5 https://www.windy.com/?20.633,-75.498,5
mxfh 9y ago
Note the difference between Pathlines and Streamlines and keep in mind that what you see is not an animation of the actual air movement: https://www.youtube.com/watch?v=OLSmNZm1e0k&feature=youtu.be&t=1870 https://www.youtube.com/watch?v=OLSmNZm1e0k&feature=youtu.be...
mizzao 9y ago
Is this derived from http://hint.fm/wind/ http://hint.fm/wind/ ? Also, does anyone know how that elbow in the path forecast comes about? Is there something magical about the waist of Cuba that suddenly makes it turn north?
- squidfood 9y ago
  "Because of the passage of an upper-level trough to the north, with Irma starting to feel the steering effects of the westerly flow of the midlatitudes." Described in detail with figures here: http://cliffmass.blogspot.com/2017/09/american-versus-european-models-and.html http://cliffmass.blogspot.com/2017/09/american-versus-europe...
- empath75 9y ago
  High pressure areas to the west.
cwperkins 9y ago
Harvey has dissipated more-or-less, the one near Mexico is Hurricane Kattia
SAI_Peregrinus 9y ago
A fun aspect of this site is that you can change the map projection used.
hoxinot 9y ago
Not sure if this is some display artifact, but the most striking thing to me is how strange the wind patterns are in many parts of North America if you zoom out.

78 points by kompressor 9y ago

Compare https://www.ventusky.com/?p=19.6;-77.9;4&l=wind&w=0xIAb9A9A https://www.ventusky.com/?p=19.6;-77.9;4&l=wind&w=0xIAb9A9A

DigitalJack 9y ago
That’s my new favorite. It’s interesting how the wind appears to spiral into the eye near ground level, and out from the eye at 12k meters. It’s like there is a toroidal shape where on the bottom, wind spirals in towards the eye, transitions to the top in the eyewall and spirals out at the top.
- theoh 9y ago
  "rising air in the eyewall follows isolines of equal angular momentum, which [also] slope outward with height" (Wikipedia)

onewhonknocks 9y ago

*Katia

bllguo 9y ago

partial to windy.com myself https://www.windy.com/?20.633,-75.498,5,a:q3iI3 https://www.windy.com/?20.633,-75.498,5,a:q3iI3

digikata 9y ago
Whatever that last parameter is on the url, it causes mass rendering artifacts in Firefox/Linux. It works for me w/o. https://www.windy.com/?20.633,-75.498,5 https://www.windy.com/?20.633,-75.498,5

mxfh 9y ago

Note the difference between Pathlines and Streamlines and keep in mind that what you see is not an animation of the actual air movement: https://www.youtube.com/watch?v=OLSmNZm1e0k&feature=youtu.be&t=1870 https://www.youtube.com/watch?v=OLSmNZm1e0k&feature=youtu.be...

mizzao 9y ago

Is this derived from http://hint.fm/wind/ http://hint.fm/wind/ ? Also, does anyone know how that elbow in the path forecast comes about? Is there something magical about the waist of Cuba that suddenly makes it turn north?

squidfood 9y ago
"Because of the passage of an upper-level trough to the north, with Irma starting to feel the steering effects of the westerly flow of the midlatitudes." Described in detail with figures here: http://cliffmass.blogspot.com/2017/09/american-versus-european-models-and.html http://cliffmass.blogspot.com/2017/09/american-versus-europe...
empath75 9y ago
High pressure areas to the west.

cwperkins 9y ago

Harvey has dissipated more-or-less, the one near Mexico is Hurricane Kattia

SAI_Peregrinus 9y ago

A fun aspect of this site is that you can change the map projection used.

hoxinot 9y ago

Not sure if this is some display artifact, but the most striking thing to me is how strange the wind patterns are in many parts of North America if you zoom out.