NOAA forecasts Kp 5 for 00:00–03:00 UTC on October 31. In Sisimiut, Maniitsoq and Nuuk, this is October 30 at 22:00 through October 31 at 01:00 local time.
City forecast — 2026-10-31
| Country | City | Forecast window | Visibility call | Cloud risk |
|---|---|---|---|---|
| Greenland | Sisimiut | Oct. 30, 22:00–Oct. 31, 01:00 (UTC−2) | WATCH | Check live cloud layer |
| Greenland | Maniitsoq | Oct. 30, 22:00–Oct. 31, 01:00 (UTC−2) | WATCH | Check live cloud layer |
| Greenland | Nuuk | Oct. 30, 22:00–Oct. 31, 01:00 (UTC−2) | WATCH | Check live cloud layer |
Countries and cities in the aurora zone
NOAA forecasts Kp 5 from 00:00 to 03:00 UTC.
NOAA’s planetary K-index forecast lists Kp 5 for the interval beginning at 00:00 UTC on October 31.
For Sisimiut, Maniitsoq and Nuuk, the three-hour interval is October 30 at 22:00 through October 31 at 01:00 local time (UTC−2). A geomagnetic forecast does not confirm local visibility.
What to do — 2026-10-31
Use the 00:00–03:00 UTC forecast interval as your 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.