What happened on 2026-10-31
The storm came in below the forecast. NOAA's observed planetary K index peaked at 3.0, under the forecast peak of Kp 5.0 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. 30, 20:00–23:00 EDT |
| Rankin Inlet | Oct. 30, 19:00–22:00 CDT |
| Thompson | Oct. 30, 19:00–22:00 CDT |
NOAA forecasts Kp 5 from 00:00 to 03:00 UTC on October 31.
NOAA’s planetary K-index forecast lists Kp 5 for the interval beginning at 00:00 UTC on October 31.
That is October 30 from 20:00 to 23:00 EDT in Iqaluit and 19:00 to 22:00 CDT in Rankin Inlet and Thompson. A geomagnetic forecast does not confirm local visibility.
What to do
- Use the local October 30 evening interval for your city as the timing reference.
- Check local darkness and cloud conditions shortly before leaving.
- Follow the live city forecast for changes.
Sources and live checks
This brief uses NOAA’s planetary K-index forecast JSON, checked October 28, 2026 at 17:03 UTC and last modified at 17:01:46 UTC. It forecasts Kp 5 for the interval beginning October 31 at 00:00 UTC. NOAA’s 27-day outlook is included as a secondary planning source.