Word spiral

Starting from 1, fill in the grid in a clockwise direction with four-letter words. The last letter of each word becomes the first letter of the next to reveal the sevenletter key word in the shaded boxes.

Keyword clue: Meteorological term

1. Pile

2. Mountain lion 3. Bushy hairstyle 4. Expel

5. Carpet nail 6. Brown seaweed 7. Liquid measure 8. Strong taste

9. Grasp

10. Walk heavily 11. No longer alive 12. Rush

13. Rigid circular band 14. Bucket

15. Idle

16. Spun thread