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I found this part of the discussion interesting....in no way am I trying to wishcast, but I'm trying to understand what physics could force the system to go south and southwest. Could the awaited trough deflect Franklin rather than pick him up? Most of the model guidance ...Excluding the much faster GFS and GFDL models...now slows down Franklin through 72 hours and either dissipated the cyclone or waits for another shortwave trough to pick up the cyclone and accelerate it quickly to the northeast. Just one problem...all of the models...to some degree...move the mid-level circulation slowly back to the south and southwest after 72 hours. This scenario is similar to the medium and deep BAM models. Given that Franklin is currently south of and slower than all of the NHC model guidance from 06z...and that all of the models forecast the mid-level flow to become northwest to northerly by 72 hours...the official track has been shifted to the right...or south...of and a little slower than the previous forecast. This track is consistent with the GUNS model consensus. |