What conditions does Dark Skies look for?

Astronomical Night: Any. Total Cloud Coverage: ≤ 20.0%. Visibility: ≥ 12000.0m. Precipitation Chance: ≤ 10.0%. Moon Illumination: ≤ 35.0%. Moon Altitude: ≤ 10.0°

How often do conditions match?

There are 20 upcoming opportunity windows in the next 10 days.

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Rule Dark Skies

Coldfoot - Dark Skies - Alaska

Coldfoot, Alaska, United States

Moonless nights with crystal-clear skies for deep-sky photography

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Anchorage

Next opportunity

Pristine Dark Skies (pristine)

Coldfoot

Today · 10:00–24:00 · 14h window

Medium confidence

52%

🌛Moon Altitude-1-8.8°

☁️Total Cloud Coverage0.1-1.4%

Good Dark Skies

Coldfoot

Tomorrow · 06:00–07:00

🌛Moon Altitude:8.1°

Medium

Excellent Dark Skies (pristine) at Sunrise

Coldfoot

Tomorrow · 07:00–10:00

🌛Moon Altitude:-8.2-3.2°

Medium

Excellent Dark Skies (pristine)

Coldfoot

Tomorrow · 10:00–13:00

🌛Moon Altitude:-24.3--14°

Medium

Pristine Dark Skies (pristine)

Coldfoot

Tomorrow · 15:00–03:00

🌛Moon Altitude:-31.7-10°

Medium

Excellent Dark Skies (pristine)

Coldfoot

Fri, Mar 6 · 05:00–07:00

🌛Moon Altitude:5.4-8.5°

Medium

Excellent Dark Skies (pristine) at Sunrise

Coldfoot

Fri, Mar 6 · 07:00–08:00

🌛Moon Altitude:1.2°

Medium

+13 more windows in the next 10 days

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72-hour requirements breakdown

What passed or failed, hour by hour

35matching hours in the next 95 hoursJump to next match

OR logic: one branch per group is enough

Meets requirement

Misses requirement

Time America/Anchorage	Astronomical Night Any	Total Cloud Coverage ≤ 20.0%	Visibility ≥ 12000.0m	Precipitation Chance ≤ 10.0%	Moon Illumination OR1·B1 ≤ 35.0%	Moon Altitude OR1·B2 ≤ 10.0°
Tue, Mar 3
16:00	✕	0%	24134m	0%	99%	-15°
17:00	✕	0%	24134m	0%	99%	-12°
18:00	✕	0%	24135m	0%	99%	-7.1°
19:00	✕	0%	24134m	0%	99%	-2°
20:00	✕	0%	24134m	0%	99%	3.4°
21:00	✓	0.1%	24134m	0%	99%	8.6°
22:00	✓	0.1%	24135m	0%	99%	14°
23:00	✓	0%	24135m	0%	99%	18°
Wed, Mar 4
24:00	✓	0%	24134m	0%	99%	21°
01:00	✓	0%	24135m	0%	99%	23°
02:00	✓	0%	24134m	0%	99%	23°
03:00	✓	0%	24134m	0%	99%	22°
04:00	✓	0%	24134m	0%	99%	19°
05:00	✓	0%	24134m	0%	99%	15°
06:00	✓	0%	24135m	0%	99%	11°
07:00	✓	0%	24135m	0%	99%	5.1°
08:00	✓	0.8%	24135m	0%	99%	-0.75°
09:00	✓	0.8%	24135m	0%	99%	-6.6°
10:00	✓	0.8%	24135m	0%	99%	-12°
11:00	✓	0.8%	24134m	0%	99%	-17°
12:00	✓	3.9%	24134m	0%	99%	-21°
13:00	✓	0.8%	24135m	0%	99%	-24°
14:00	✓	0%	24135m	0%	99%	-25°
15:00	✕	0%	24134m	0%	96%	-25°
16:00	✕	0%	24135m	0%	96%	-24°
17:00	✕	0%	24134m	0%	96%	-21°
18:00	✕	0.1%	24134m	0%	96%	-17°
19:00	✕	0.1%	24134m	0%	96%	-12°
20:00	✕	0.1%	24135m	0%	96%	-6.4°
21:00	✓	0.1%	24134m	0%	96%	-0.99°
22:00	✓	1.4%	24135m	0%	96%	4.2°
23:00	✓	0.1%	24135m	0%	96%	8.8°
Thu, Mar 5
24:00	✓	0%	24134m	0%	96%	13°
01:00	✓	3.6%	24134m	0%	96%	15°
02:00	✓	3.6%	24134m	0%	96%	17°
03:00	✓	3.6%	24135m	0%	96%	17°
04:00	✓	5.9%	24134m	0%	96%	15°
05:00	✓	4.9%	24134m	0%	96%	12°
06:00	✓	13%	24134m	0%	96%	8.1°
07:00	✓	11%	24135m	0%	96%	3.2°
08:00	✓	17%	24135m	0%	96%	-2.4°
09:00	✓	7.8%	24135m	0%	96%	-8.2°
10:00	✓	11%	24134m	0%	96%	-14°
11:00	✓	8.1%	24134m	0%	96%	-19°
12:00	✓	6%	24134m	0%	96%	-24°
13:00	✓	29%	24134m	0%	96%	-28°
14:00	✓	23%	24135m	0%	96%	-31°
15:00	✓	5%	24134m	0%	90%	-32°
16:00	✓	5%	24135m	0%	90%	-31°
17:00	✓	4.1%	24135m	0%	90%	-29°
18:00	✓	5%	24134m	0%	90%	-25°
19:00	✓	5%	24134m	0%	90%	-21°
20:00	✓	4.5%	24134m	0%	90%	-16°
21:00	✓	4.5%	24135m	0%	90%	-10°
22:00	✓	5.1%	24134m	0%	90%	-5°
23:00	✓	5.7%	24135m	0%	90%	-0.06°
Fri, Mar 6
24:00	✓	5.7%	24134m	0%	90%	4.3°
01:00	✓	5.8%	24134m	0%	90%	7.7°
02:00	✓	6%	24135m	0%	90%	10°
03:00	✓	6.1%	24134m	0%	90%	11°
04:00	✓	5.9%	24134m	0%	90%	10°
05:00	✓	5.9%	24135m	0%	90%	8.5°
06:00	✓	5.8%	24134m	0%	90%	5.4°
07:00	✓	6%	24134m	0%	90%	1.2°
08:00	✓	98%	24134m	0%	90%	-3.8°
09:00	✓	13%	24135m	0%	90%	-9.3°
10:00	✓	92%	24135m	0%	90%	-15°
11:00	✓	99%	24134m	0%	90%	-21°
12:00	✓	98%	24134m	0%	90%	-26°
13:00	✓	68%	24134m	0%	90%	-31°
14:00	✓	100%	24135m	0%	90%	-35°
15:00	✓	100%	24135m	0%	84%	-37°
16:00	✓	100%	24135m	1.7%	84%	-37°
17:00	✓	100%	24135m	3.3%	84%	-36°
18:00	✓	100%	24134m	5%	84%	-33°
19:00	✓	100%	24135m	3.3%	84%	-29°
20:00	✓	100%	24134m	1.7%	84%	-25°
21:00	✓	100%	24135m	0%	84%	-19°
22:00	✓	100%	24135m	0%	84%	-14°
23:00	✓	100%	24135m	0%	84%	-8.7°
Sat, Mar 7
24:00	✓	100%	24135m	0%	84%	-3.9°
01:00	✓	100%	22945m	0%	84%	0.14°
02:00	✓	100%	21755m	0%	84%	3.2°
03:00	✓	100%	20565m	0%	84%	5°
04:00	✓	100%	14493m	0%	84%	5.6°
05:00	✓	100%	8422m	0%	84%	4.8°
06:00	✓	100%	2350m	0%	84%	2.7°
07:00	✓	100%	6258m	0%	84%	-0.65°
08:00	✓	100%	10166m	0%	84%	-5°
09:00	✓	100%	14074m	0%	84%	-10°
10:00	✓	100%	15699m	0%	84%	-16°
11:00	✓	100%	17323m	0%	84%	-21°
12:00	✓	100%	18948m	0%	84%	-27°
13:00	✓	100%	20677m	7.4%	84%	-32°
14:00	✓	100%	22406m	15%	84%	-37°

How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity). For OR groups, only one branch is required, so some OR-branch predicates can be ✕ even in a matching hour.

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