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Originally posted by Mapkar
reply to post by explorer14
The small line moving west of the main storm is...
They may go ahead of, or out the sides of a storm. The line is formed by the collection of precipitation or dust that is read by the radar. It's a normal phenomenon, and if you're in the area it can offer a refreshing cool breeze!
These are typically nothing to worry about, but can have gusts of hurricane force.