The cold front that I picked was the one that streches between Michigan and Louisiana.I believe that the cold front past KGSO which is in North Carolina at hour 21 on the Meteogram. I believe that it was this time because this was when the temperature dropped. The proit also drop at this time. The winds are also coming from the west which is the direction that cold fronts generally move. These things indicate that there was a cold front that passed through. Although the dopplar radar is newer than the other documents, you are able to see that a storm passed through the Carolina's not that long ago. And precipitation is a sign of a cold front.I don't think I will use this knowledge at all in my life. I only took this class for a physical science credit. If in the future I want to see if a cold front is passing I will watch the news. I also did not really learn anything about cold fronts.