According to the National Hurricane Center; "an average of 75% of the total area of these storms is located to the North and East of the center of the storm".
Looking at the image below, you notice that most of this storm is offset to the upper right (North East) from the center of the storm. Since this is where the bulk of the storm is, this is also where the bulk of the "action" is. If you imagine the storm represents the face of a clock, the "dirty side" of the storm is around 2 o'clock relative the the direction the storm is traveling.
We added the windfield to our maps last year so folks could better understand the dimensions and potential impact of the storms. This windfield data is provided by the NHC, we don't make it up
