Known as the City of the Northern Lights, Alta sits at 70°N and has been a premier aurora observation site since the 1800s.
Alta, Norway
It's daytime at your location. Aurora is only visible at night.
24h ago → 3 days ahead · Dark bands = night · Gray area = clouds · Past is dimmed
Thursday
Apr 9
Peak Kp
5
Clouds
60%
Dark hrs
8.7h
Friday
Apr 10
Peak Kp
5.3
Clouds
0%
Dark hrs
8.5h
Saturday
Apr 11
Peak Kp
4.7
Clouds
1%
Dark hrs
8.4h
Events from the last 3 days that can influence aurora visibility
Strong explosion on the sun. May enhance aurora activity if the particles reach Earth in 1-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
Moderate explosion on the sun. Usually too weak on its own to cause visible aurora at mid-latitudes.
Cloud of solar plasma possibly heading toward Earth. May trigger aurora in 2-3 days.
How solar events cause aurora:
Indirect — can launch plasma clouds toward Earth
High — if aimed at Earth, causes aurora in 1-3 days
Direct — aurora is happening or imminent!
Moderate — can sustain aurora for days
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