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Alaska aurora recap: original Kp 5.7 forecast

Original forecast checked October 11 at 02:19 UTC placed Kp 5.67 in this article’s specified October 11 interval. NOAA’s planetary K index was later observed lower in that same interval; this is a global measurement, not a city visibility report.

Alaska aurora forecast WATCH

This recap compares the original global Kp forecast with the observed planetary K index for the same three-hour interval. It is not a city visibility report.

Original forecast Kp 5.67 For 09:00–12:00 UTC on October 11
Observed planetary Kp 3.0 Same 09:00–12:00 UTC interval; not city visibility
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What happened in the original forecast window

NOAA’s planetary K index was observed at 3.0 during 09:00–12:00 UTC on October 11, below this article’s original Kp 5.67 forecast for that exact interval. This is a global geomagnetic reading, not a report of visibility in any city.

City forecast

City Forecast window
Eagle Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Delta Junction Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Dot Lake Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Northway Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Tanacross Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Nenana Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Anderson Oct 11, 01:00–04:00 AKDT (Kp 5.67)
Healy Oct 11, 01:00–04:00 AKDT (Kp 5.67)
NOAA northern hemisphere aurora forecast map
AuroraMe combines NOAA's Kp outlook with magnetic latitude, darkness, moon and cloud data for a live city forecast.

The original 01:00–04:00 AKDT forecast window is now a recap.

The original NOAA forecast retrieved October 11 at 02:19 UTC placed Kp 5.67 at 09:00–12:00 UTC on October 11.

Eagle, Delta Junction, Dot Lake, Northway, Tanacross, Nenana, Anderson and Healy share the original 01:00–04:00 AKDT interval. NOAA later observed Kp 3.0 for the matching UTC interval; this is not a city visibility report.

What to do

  1. Check the live city forecast before the 01:00–04:00 AKDT interval.
  2. Check darkness and cloud conditions again shortly before leaving.
  3. Choose a dark viewing spot with an open northern horizon if conditions allow.

Sources and live checks

Original article figures use NOAA SWPC’s Planetary K-index forecast JSON retrieved October 11 at 02:19 UTC. NOAA’s forecast feed checked October 11 at 19:18 UTC records observed Kp 3.0 for 09:00–12:00 UTC on October 11, below the original Kp 5.67 forecast for that exact interval; this is not a city visibility report.