What happened on 2026-09-24
The storm came in below the forecast. NOAA's observed planetary K index peaked at 3.0, under the forecast peak of Kp 5.3 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.
City forecast
| City | Forecast window |
|---|---|
| Akureyri | Sep 24, 03:00–06:00 GMT |
| Húsavík | Sep 24, 03:00–06:00 GMT |
| Egilsstaðir | Sep 24, 03:00–06:00 GMT |
| Hafnarfjörður | Sep 24, 03:00–06:00 GMT |
| Garðabær | Sep 24, 03:00–06:00 GMT |
| Kópavogur | Sep 24, 03:00–06:00 GMT |
The listed cities share NOAA’s September 24 UTC geomagnetic forecast.
NOAA’s 3-day forecast, issued September 22 at 00:30 UTC, places its Kp 5.33 peak at 03:00–06:00 UTC on September 24. Iceland uses GMT, so the local window is also 03:00–06:00.
Cloud cover and local darkness determine whether that geomagnetic forecast becomes a visible display. Check the live forecast for the Iceland city where you plan to observe before travelling.
What to do
- Check your live city forecast for current odds and cloud conditions.
- Choose a viewing spot away from bright lights for September 24 at 03:00 GMT.
- Save your city in AuroraMe and enable the aurora alert.
Sources and live checks
NOAA SWPC’s 3-day forecast was issued September 22 at 00:30 UTC; this brief also uses AuroraMe’s 72-hour city forecast, OVATION and local visibility factors.