- Sequence of events as storm moves in
- W910719S
- The sequence of events as a storm moves in includes a high, bright anvil darkening and lowering steadily until low clouds or a gust front line appear under it ahead of the rain. The anvil sheet above is actually sloped downward toward its source (updraft area) and is only higher and thinner farther ahead because higher winds aloft extrude upper portions forward.
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