A small NASA satellite offers important insight about the structure of the storm and its different layers.

Hurricane Dorian off the coast of Florida, as seen by the small satellite TEMPEST-D. Image credits: NASA.

TEMPEST-D is no larger than a cereal box, and it’s inexpensive to boot — but its capability is remarkable. Above is a visualization of Hurricane Dorian, taken by TEMPEST-D at four depths (with four different radio wavelengths). The colors depict the heaviest rainfall inside the storm: pink and red are the most intense, whereas green and blue are the least intense. Essentially, the multiple vertical layers in the image above show where the strongest convective “storms” within the hurricane are moving into th

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