| Clue | Source | Date |
|---|---|---|
| Pollution-related warning | The Telegraph Cross Atlantic | 07 Jun 2025 |
| Warning related to pollution | New York Times | 19 Jul 2024 |
| Weather-related anagram of STORM + GALE | Newsday | 06 Aug 2022 |
| Notification of low air quality | USA Today | 14 Oct 2021 |
| Los Angeles environmental posting | USA Today | 04 Oct 2017 |
| Los Angeles environmental posting | ||
| Environmental warning | LA Times Daily | 03 Jan 2016 |
| Environmental warning | ||
| Frequent warning in L.A. |