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Rule Northern Lights

Anchorage - Northern Lights - Alaska

Anchorage, Alaska, United States

Northern Lights photography conditions - combines aurora activity levels with clear skies and proper darkness for optimal viewing.

Currently

Real-time conditions
Kp IndexKp 3 (Quiet)
Sun Elevation31.3° (Daylight)
Cloud Cover34%

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Anchorage
aurora weather icon
Next opportunity
Good Chance of Aurora
Anchorage
Wed, Apr 29 · 02:00–04:00 · 2h window
Low confidence
18%
🌌Aurora Quality56.1-62.7%
Kp Index: Kp 5 (Minor Storm)
Sun Elevation: -13.2° (Astronomical twilight)
Cloud Cover: 15%
aurora weather icon
Fair Chance of Aurora at Dawn
Anchorage
Wed, Apr 29 · 04:00–05:00
🌌Aurora Quality:59.8%
Low
aurora weather icon
Good Chance of Aurora
Anchorage
Thu, Apr 30 · 24:00–04:00
🌌Aurora Quality:56.1-62.7%
Low
aurora weather icon
Fair Chance of Aurora at Dawn
Anchorage
Thu, Apr 30 · 04:00–05:00
🌌Aurora Quality:58.6%
Low

What this forecast looks for

Plain-language explanation from the rule

This forecast answers the question every aurora photographer asks: "Can I actually see the aurora tonight?" Unlike simple Kp forecasts, we combine NOAA's OVATION aurora model with real-time cloud cover, visibility, and darkness data to predict true viewing conditions.

Alaska's interior sits directly under the auroral oval, making it one of the world's most reliable aurora viewing destinations. Fairbanks, in particular, experiences aurora activity on roughly 240 nights per year—more than almost anywhere else accessible by road.

What makes Alaska special for aurora photography:

  • Auroral oval position - Fairbanks sits at the ideal 65°N latitude, directly under the oval's typical position
  • Extreme darkness - Winter nights can last 18+ hours, maximizing viewing opportunities
  • Dramatic foregrounds - Snow-covered mountains, frozen rivers, and boreal forests create stunning compositions
  • Research heritage - The University of Alaska Fairbanks Geophysical Institute provides world-class aurora forecasting

Best conditions typically occur September through March, with peak activity during the equinox months. The interior's continental climate means clearer skies than coastal areas, though temperatures can plunge well below -30°C. Dress accordingly and keep camera batteries warm.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Anchorage
Aurora Quality
≥ 50.0%
Solar Elevation
≤ -8.0°
Aurora Activity
≥ 50.0%
Total Cloud Coverage
≤ 30.0%
Visibility
≥ 8000.0m
Mon, Apr 20
11:000%31°16%100%24135m
12:000%36°16%100%24134m
13:000%39°0%100%17538m
14:000%41°11%97%16589m
15:000%39°11%83%24134m
16:000%36°21%66%24134m
17:000%31°21%84%24135m
18:000%24°21%57%24135m
19:000%17°35%12%24134m
20:000%10°38%5.4%24135m
21:000%3.4°37%5%24134m
22:000%-3.2°25%86%24135m
23:0023%-8.9°20%13%24134m
Tue, Apr 21
24:0043%-13°20%5%24135m
01:0042%-16°18%5%24135m
02:0046%-17°28%4.3%24134m
03:0048%-16°32%2.2%24135m
04:0071%-13°59%5%24135m
05:0059%-8.5°61%5%24134m
06:000%-2.8°60%5%24134m
07:000%3.9°34%9.9%24134m
08:000%11°31%16%24134m
09:000%18°28%17%24135m
10:000%25°14%36%24134m
11:000%31°14%34%24134m
12:000%36°14%37%24134m
13:000%40°0%50%24134m
14:000%41°0%68%24134m
15:000%40°0%23%24135m
16:000%36°11%21%24134m
17:000%31°11%5.3%24135m
18:000%25°11%5%24134m
19:000%18°0%46%24135m
20:000%11°0%95%24134m
21:000%3.6°0%100%24135m
22:000%-2.9°0%100%24134m
23:000%-8.6°0%100%24134m
Wed, Apr 22
24:000%-13°0%100%24134m
01:000%-16°0%51%24135m
02:000%-16°0%80%24134m
03:000%-15°0%69%24134m
04:000%-13°0%98%24135m
05:000%-8.2°0%100%24135m
06:000%-2.4°0%100%24135m
07:000%4.2°0%100%91m
08:000%11°0%100%87m
09:000%18°0%100%158m
10:000%25°0%100%284m
11:000%32°0%100%207m
12:000%37°0%100%201m
13:000%40°0%100%24115m
14:000%41°0%97%24117m
15:000%40°0%100%24135m
16:000%36°0%100%24134m
17:000%31°0%100%24135m
18:000%25°0%100%24135m
19:000%18°0%100%24135m
20:000%11°0%100%24135m
21:000%3.9°0%100%18401m
22:000%-2.6°0%97%16535m
23:000%-8.3°0%100%16061m
Thu, Apr 23
24:000%-13°0%100%866m
01:000%-15°0%100%599m
02:000%-16°0%100%6306m
03:000%-15°0%100%24116m
04:000%-12°0%100%24115m
05:000%-7.8°0%100%24115m
06:000%-2.1°0%100%24117m
07:000%4.5°0%100%24134m
08:000%11°0%100%24135m
09:000%19°0%100%24134m
10:000%26°0%100%24134m
11:000%32°0%100%24134m
12:000%37°0%100%24134m
13:000%40°0%100%24134m
14:000%42°0%100%24135m
15:000%40°0%100%24135m
16:000%37°16%100%24135m
17:000%32°16%100%24135m
18:000%25°16%100%24135m
19:000%18°16%100%24135m
20:000%11°16%100%16212m
21:000%4.2°16%100%8288m
22:000%-2.3°16%100%365m
23:000%-8°16%100%807m
Fri, Apr 24
24:000%-12°16%100%1249m
01:000%-15°16%100%1691m
02:000%-16°16%100%9171m
03:000%-15°16%100%16650m
04:000%-12°16%100%24130m
05:000%-7.5°16%100%24131m
06:000%-1.7°16%100%24133m
07:000%4.8°16%100%24135m
08:000%12°16%100%24135m
09:000%19°16%99%24135m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

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