Cloud of the Week: an arcus (shelf) cloud at the front of a storm

What BBN said about it

1. 

   Chip Darnell · U.S. News AnchorIt is the segment we have all been waiting for, a sacred tradition, and this is Cloud of the Week number one!

2. 

   Brock Thunderson · Chief MeteorologistThank you, Chip. This is an arcus cloud, a shelf cloud, the kind that sits at the front of a storm.

3. 

   Brock Thunderson · Chief MeteorologistThe photo by Jacek Halicki is captioned Whale's mouth, taken a moment before heavy rain.

4. 

   Chip Darnell · U.S. News AnchorIt looks like it wants to eat the whole parking lot!

5. 

   Brock Thunderson · Chief MeteorologistHer name is Whitney Marie Plumtree.

6. 

   Brock Thunderson · Chief MeteorologistShe rolled in with a dramatic front, no warning, and that mouth was open the whole time she explained why we needed space.

7. 

   Vera Bullock · Co-AnchorOh, Brock. That sounds like quite the dramatic entrance.

8. 

   Brock Thunderson · Chief MeteorologistNo. I will not be healed, Vera.

9. 

   Vera Bullock · Co-AnchorFine, then one sensible question. How can you tell a shelf cloud from an ordinary one?

10. 

    Brock Thunderson · Chief MeteorologistEasy. An ordinary cloud never says it is not you, it is the jet stream, and then goes off with a man called Kevin.

11. 

    Chip Darnell · U.S. News AnchorKevin!

12. 

    Brock Thunderson · Chief MeteorologistThat is the forecast. Stay dry, and remember that Whitney Marie Plumtree still has my good umbrella.