scottsvb
(Weather Master)
Mon Aug 22 2011 12:08 PM
Re: Irene the Year's first Hurricane, Passes Over Puerto Rico

You dont need to look at the NAM model..it's not for Tropical Systems.

Just watch the ECMWF and the GFS and use a blend of the 2.

GFDL has been constantly too far west but is sliding eastward each run..along
with the Ukmet..but both as not as good as the ECMWF or GFS.

It's more NE cause of the ridging I stated is depicted wrong on the models.. but looks
like the GFS has it finally correct (like ECMWF has for the past day or 2)


If you really want to know "Why" the NHC hasn't adjusted their cone more to the right
is cause it's still 3 days out and besides.. they need to keep the people informed. If they
move the cone off of florida.. people would think.. Ok.. nothing to worry about here. But
again..3 days out. They know its a good 90% chance Florida wont be more than bad
seas and surf conditions (beach erosion) but as each 12hrs gets closer.. they will move
that cone more eastward into the bahamas. .... So it's to keep peoples attention really.