Even w/ the favorable Kelvin Wave passing thru, #92L's organization has changed little since yesterday. While its immense size is contributing to its broad/sloppy nature, I suspect deep-layer environmental backing is making tropical development even harder for #92L right now
Even w/ the favorable Kelvin Wave passing thru, #92L's organization has changed little since yesterday. While its immense size is contributing to its broad/sloppy nature, I suspect deep-layer environmental backing is making tropical development even harder for #92L right now
Even w/ the favorable Kelvin Wave passing thru, #92L's organization has changed little since yesterday. While its immense size is contributing to its broad/sloppy nature, I suspect deep-layer environmental backing is making tropical development even harder for #92L right now
Counter-clockwise (CCW) hodographs like the one we're seeing here favor radial expansion & diffusion of #92L's wave envelope, which in addition to the Convectively Coupled Kelvin Wave, is only serving to reinforce its large size...
CCW curved hodographs are associated w/ cold advection, implying weaker low-level heat fluxes. This ultimately slows the upshear precession of deep convection & makes #92L's deep layer cyclonic circulation more disjointed & susceptible to shear >> slower or arrested development
@Weathernerds & others have actually done a lot of great work on this very topic & I highly recommend reading through some of their publications:

https://journals.ametsoc.org/jas/article/75/10/3565/97891/The-Evolution-of-Vortex-Tilt-and-Vertical-Motion
https://journals.ametsoc.org/jas/article/73/2/869/27826/Tropical-Cyclone-Relative-Environmental-Helicity
https://journals.ametsoc.org/jas/article/76/6/1827/343731/Intensification-Variability-of-Tropical-Cyclones
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