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How can Synoptic data be used in Satellite Analysis?
•Verify positions
–Wind Directions
–Surface Pressures
•Verify Intensities
–Wind Speeds
–Surface Pressure
•Overlay data on Imagery
Synoptic data can be used in several different ways.
1.  You can verify (or adjust) your position center using available wind directions and speed, and you can use the surface pressures to help zero in on the surface low.

2.  You can also use available wind speeds to get an idea of the minimum intensity of the wind fields.  Of course, the closer the data is to your system center, the more accurate an estimation you will have.  You may also estimate the intensity by how low the surface pressure actually is.

3.  Another use of synoptic data, especially with AWDS, is the ability to overlay plotted data onto the Satellite imagery.  As in any weather information, when you overlay products they make the analysis process easier.
When you overlay the synoptic data onto the satellite data, you may pick up on small details that were meaningless before, and you can discount features that can otherwise be misleading.