On Friday, 2 October 2015 08:50:13 UTC+1, N_Cook wrote:
On 01/10/2015 22:25, Graham P Davis wrote:
On Thu, 1 Oct 2015 10:54:25 -0700 (PDT)
xmetman wrote:


Hurricane Joaquin is now category 3 and is causing the NHC big
problems as there are big diffences from all the available models on
what track it will take and if (and when) it'll make landfall on the
eastern seaboard of the United States.

http://www.nhc.noaa.gov/text/refresh...l/011504.shtml

And now cat 4.
http://www.nhc.noaa.gov/text/refresh...l/012054.shtml
Other models are tending towards ECMWF solution.


With the concensus track now more eastward component and not going over
land , does that mean a more energetic system will come into our area of
significance a week from now? and when does the NHC stop outputting
info, when it drops off the Fujita scale?

They stop when they transition to an extratropical cyclone.
Its the Saffir-Simpson scale for hurricanes.