How do forecasters track the typhoon's movement such as W, WNW or NW?

Answer 1

This is an excellent question. Here is the correct answer for you. There are nine different track forecast models which the National Hurricane Center uses to produce the movement of Hurricanes in the Atlantic. I know that some of these same models are used by the Joint Typhoon Warning Center in Hawaii for typhoon forecasting in the western north Pacific ocean. What I am not sure of is whether all of the nine models are available to the JTWC. Here is a list of these models and their names:
AVN Global baroclinic
NOGAPS Global baroclinic
UKMET Global baroclinic
GFDL Limited-area baroclinic
GFDI Interpolated GFDL
LBAR Limited-area barotropic
BAM Trajectory
NHC90/NHC91 Statistical
CLIPER Statistical

Now if you are interested in a description of these models, the NHC provides one at the following web site:

http://www.nhc.noaa.gov/modelsummary.shtml

With continuous satellite coverage and aircraft penetration of the storms as they approach land together with land based radars, the land-fall forecast has improved greatly over the years.

Answer 2

By tracking its centre every hour with the help of radars and satellites , fixing the centre with the values of latitudes and longitudes and finding the direction of movement by drawing trajectory connecting the centres.

Answer 3

prevailing winds, other air masses that are nearby and how they're moving, it's all probability, give me a map with all the local air masses and their movements and I could do it.