Significant Issues with Dervived Motion Wind

With tropical storm  Cindy in the Gulf of Mexico, it seemed reasonable to use the derived motion wind to estimate the strength of the tropical storm. I went ahead and loaded the visible satellite imagery with the associated derived motion wind vectors:

Unfortunately, the performance of the derived motion wind was poor. There were a lot of spurious wind vectors across southern Texas and Mexico, which had values between 50-80 knots.  These are likely due to the algorithm tracking small areas of cumulus.

In addition, the  wind vectors across the southern part of the tropical storm were in the opposite direction. These winds should be from the west instead of the east.

The overall poor performance of the derived motion wind gives me zero confidence in operational utility of the data.

-Lost Met