Actual screen shot showing the projected path of a severe
thunderstorm after three positions were defined.
The orange area is the projected path of the storm. The times below the
track are the estimated times when the storm will be at those positions in the track.
The names to the right of the projected track are the cities that will
be affected by the storm.
Here's how the storm's projected track evolved as the first two storm
positions were defined. Notice how the projected track becomes more accurate.