what do the black lines on this weather map represent

what do the black lines on this weather map represent. There are some references to what do the black lines on this weather map represent in this article. If you are looking for what do the black lines on this weather map represent you've came to the right place. We have posts about what do the black lines on this weather map represent. You can check it out below.

Showing posts matching the search for what do the black lines on this weather map represent