What happened on 2026-09-09
The storm came in below the forecast. NOAA's observed planetary K index peaked at 3.0, under the forecast peak of Kp 5.7 this brief was based on.
This event is over. For the next viewing chance, check the live 72-hour forecast for your city — conditions change every few hours.
AuroraMe's live model snapshot generated September 9 at 12:41 UTC reaches Kp 5.7 near 21:00 UTC on September 9, while NOAA's forecast issued at 12:30 UTC reaches Kp 5.67 at 21:00–00:00 UTC, or September 9 at 13:00–16:00 AKDT. That is daytime in Alaska, so it is not a nighttime viewing window. These are forecasts rather than confirmed observations; check a later local-darkness period and cloud cover before going out.
City forecast — 2026-09-09
| Country | City | Forecast window | Visibility call | Cloud risk |
|---|---|---|---|---|
| United States | Eagle | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Circle | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Chicken | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Chalkyitsik | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Yakutat | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Dot Lake | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
| United States | Juneau | AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT) | WATCH | Check live cloud layer |
Countries and cities in the aurora zone
United States
- Forecast window
- AuroraMe model near 21:00 UTC; NOAA Kp 5.67 forecast: 21:00–00:00 UTC (Sep 9, 13:00–16:00 AKDT)
- Move
- This article covers Alaska, not a broad lower-48 forecast. The model time is a reference, not a guaranteed viewing hour; check local darkness and cloud cover before going out.
A Kp forecast is global; darkness and clouds are local.
Eagle, Circle, Chicken, Chalkyitsik, Yakutat, Dot Lake and Juneau are all in Alaska. Their viewing conditions can differ with darkness, cloud cover and local horizon.
AuroraMe's model peaks near 21:00 UTC, while NOAA's September 9 outlook reaches Kp 5.67 at 21:00–00:00 UTC. The NOAA period is September 9, 13:00–16:00 AKDT in Alaska, so use local time to check darkness rather than as a promised viewing window.
What to do — 2026-09-09
Check whether it is dark at your Alaska location.
Check cloud cover close to the time you plan to look.
Use AuroraMe's 72-hour city forecast and enable aurora alerts for updates.
Sources and live checks
AuroraMe live model data generated September 9, 2026 at 12:41 UTC reaches Kp 5.7 near 21:00 UTC on September 9. NOAA SWPC's 3-day forecast issued September 9, 2026 at 12:30 UTC forecasts a Kp 5.67 maximum at 21:00–00:00 UTC.