What happened on 2026-10-09
The storm came in below the forecast. NOAA's observed planetary K index peaked at 4.0, under the forecast peak of Kp 6.0 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 |
|---|---|
| Iqaluit | Oct 9, 17:00–20:00 EDT (Kp 5.67) |
| Inuvik | Oct 9, 18:00–21:00 MDT (Kp 4.0) |
| Whitehorse | Oct 9, 17:00–20:00 UTC-7 (Kp 4.0) |
| Fort St. John | Oct 9, 17:00–20:00 UTC-7 (Kp 4.0) |
This forecast names cities so you can plan around a local viewing window.
In Iqaluit, the Kp 6.0 global peak is 14:00–17:00 EDT. NOAA forecasts Kp 5.67 from 17:00–20:00 EDT, a later interval that may begin in twilight.
Inuvik, Whitehorse and Fort St. John receive the Kp 6.0 peak during midday or afternoon. Their later local evening windows fall in NOAA's Kp 4.0 October 10 UTC interval; check local darkness and clouds.
What to do
- Do not treat the daytime global Kp 6.0 peak as a dark viewing guarantee.
- Use the listed local evening interval and note its lower forecast Kp.
- Check local darkness, the live city forecast and cloud cover before travelling.
Sources and live checks
This article uses NOAA SWPC's 3-day forecast issued October 9 at 00:30 UTC. It forecasts Kp 6.0 at 18:00–21:00 UTC, Kp 5.67 at 21:00–00:00 UTC, then Kp 4.0 at 00:00–03:00 UTC on October 10.