There is a 40 percent probability of this condition occurring between 2000Z and 2200Z . Temporary changes expected between 0400Z and 0700Z . Becoming as described between 1300Z and 1500Z . Once the specific time periods can be discerned, the sequence of wind, visibility, significant weather, cloud cover and cloud height follows and is repeated for each time block. TAF's will also contain wind shear information not associated with convective activity.
Some key differences follow.
In the United States, we use prevailing visibility, in statue miles, not the lowest visibility, so the same conditions would be reported differently. Also, there must be no other significant weather. NSC means no significant clouds. International TAFs may include temperature, turbulence, and icing forecasts.