If a customer complains the data in the Table is different from the data showing in the Map for the exact same time the reason is:
That the tables data doesn't come from the exact location that the green dot is placed. It comes from the nearest grid point in the GRIB which can be located by using the wind barb overlay..
Green dot: https://share.predictwind.com/Z4uDydd0 22knots @ 1900
Nearest Grid point: https://share.predictwind.com/xQuxAK4m 25knots @ 1900