| Clue | Source | Date |
|---|---|---|
| Cumulonimbus (7-5) | ||
| Charged cumulonimbus (12) | The Guardian Quick | 18 Jun 2024 |
| Noisy type synonymous with Sky blocks The Sun - when this is over, expect a downfall | Irish Times Crosaire | 09 May 2017 |
| Billowy boomer | ||
| Billowy, ominous boomer | ||
| Sign of bad weather |