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Rule Fire Sky

Yakushima - Fire Sky - Kyushu

Koseda, Kagoshima, Japan

Those rare, intensely red and orange sunset skies

Currently

Real-time conditions
Low Cloud Cover61%
Mid Cloud Cover87%
High Cloud Cover90%
Aerosol Optical Depth0.3
Sun Elevation-29.5° (Astronomical night)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo
fire-sky weather icon
Next opportunity
Excellent Fiery Red Sky at Sunset
Yakushima
Sat, May 30 · 19:00–19:30 · 1h window
Medium confidence
47%
🔥Fiery Red Sky Potential80.9%
Low Cloud Cover: 0%
Mid Cloud Cover: 63%
High Cloud Cover: 0%
Sun Elevation: 2.1° (Golden hour)
fire-sky weather icon
Excellent Fiery Red Sky at Sunrise
Yakushima
Mon, Jun 1 · 05:00–05:50
🔥Fiery Red Sky Potential:75.8%
Low

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks dramatic sunset and twilight conditions across Kyushu's volcanic landscapes and subtropical coasts. We analyze cloud formations, volcanic haze, atmospheric instability, and weather systems to predict when active volcanoes and ocean horizons create spectacular fire-sky photography.

Kyushu's active volcanism, subtropical weather, and coastal exposure create exceptional fire-sky conditions. Volcanic ash from Sakurajima and Mount Aso adds atmospheric particles enhancing sunset colors. Weather systems from the East China Sea and Pacific interact with volcanic peaks creating dynamic cloud formations. Coastal locations provide unobstructed ocean horizons for dramatic twilight.

What makes Kyushu fire-sky photography special:

  • Active volcano twilight - Sakurajima erupting against sunset creates silhouettes with ash plumes illuminated by fading light
  • Volcanic atmospheric enhancement - Fine volcanic ash particles scatter light creating intensified orange and red sunset conditions
  • Subtropical cloud drama - Warm humid air masses create towering cumulus formations at sunset over volcanic peaks
  • Ocean horizon fire - Unobstructed Pacific and East China Sea horizons provide dramatic sunset compositions

Sakurajima from Kagoshima waterfront provides Kyushu's most dramatic fire-sky photography—the volcano erupts multiple times daily, and evening eruptions with ash plumes backlit against sunset create extraordinary conditions. Mount Aso's caldera rim at sunset offers westward views over volcanic bowl with setting sun illuminating crater walls. Nagasaki harbor at twilight combines hillside city lights with dramatic western skies. Aoshima shrine island provides Pacific sunset with distinctive washboard rock formations. Autumn after typhoon season and winter provide reliable fire-sky conditions. Volcanic haze generally enhances rather than obscures sunset colors.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Golden Hour
Any
Fiery Red Sky Potential
≥ 65.0%
Precipitation Chance
≤ 15.0%
Visibility
≥ 8000.0m
Sun, May 24
14:0019%63%17937m
15:0015%82%17952m
16:0027%39%18243m
17:0029%39%18159m
18:0032%39%18070m
19:0039%53%18080m
20:0029%68%16746m
21:0031%82%18087m
22:0016%68%17533m
23:0020%53%17345m
Mon, May 25
24:0018%39%8599m
01:0024%39%8719m
02:0012%39%6579m
03:007.9%39%5490m
04:0012%36%9848m
05:0017%34%17958m
06:0022%31%18115m
07:006%37%18065m
08:0014%43%18127m
09:0015%49%18200m
10:0014%47%18070m
11:0017%44%18134m
12:0021%42%18260m
13:0020%40%18244m
14:0021%39%18211m
15:0021%37%18334m
16:0020%43%18372m
17:0021%50%18368m
18:0036%56%18431m
19:0040%58%18403m
20:0017%60%18273m
21:0017%62%18230m
22:0020%53%18237m
23:0015%44%18890m
Tue, May 26
24:007.8%36%18229m
01:009.5%40%18199m
02:002.5%45%18661m
03:003.1%50%18107m
04:0014%49%18121m
05:0024%49%18095m
06:0015%48%18139m
07:0016%55%18150m
08:009.8%61%18169m
09:0017%67%18248m
10:0028%70%18363m
11:0016%73%18458m
12:0017%75%18425m
13:0013%80%18410m
14:0014%85%18387m
15:0013%89%18410m
16:0022%75%18302m
17:0018%61%18230m
18:0017%47%18183m
19:0015%49%18131m
20:0018%52%18101m
21:0015%54%18107m
22:0017%65%18078m
23:0011%76%17642m
Wed, May 27
24:0012%86%17978m
01:0011%86%18102m
02:0010%86%12567m
03:0011%85%9437m
04:000%81%7065m
05:000%76%4692m
06:000%71%2320m
07:000%74%3123m
08:000%78%3926m
09:000%81%4729m
10:000%83%8618m
11:000%85%12506m
12:000%87%16395m
13:000%89%16681m
14:000%91%16968m
15:000%93%17254m
16:000%83%18358m
17:000%73%19462m
18:000%62%20567m
19:000.3%68%19611m
20:000%74%18656m
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fiery Red Sky Potential mean?

Inputs that drive the score

This derived score summarizes multiple raw weather signals. The table below shows the supporting inputs hour by hour, so you can see what's pushing the score up or down.

Time
Asia/Tokyo
Aerosol Optical Depth (550nm)
Clear Sky Probability (Ensemble)
%
Cloud Cover Uncertainty (Ensemble)
%
Dust AOD (550nm)
Golden Hour
High Clouds
%
Low Clouds
%
Mid-Level Clouds
%
RH @ 700 hPa
%
Smoke AOD (550nm)
Solar Elevation
°
Sunshine Duration
seconds
Sun, May 24 Sunrise 05:18 Sunset 19:09
22:00
0.35 0% 9% 0.07 - 90% 61% 87% 50% 0.03 -29° 0seconds
23:00
0.34 0% 7% 0.07 - 100% 20% 99% 42% 0.02 -36° 0seconds
Mon, May 25 Sunrise 05:18 Sunset 19:09
24:00
0.31 0% 6% 0.07 - 95% 23% 100% 34% 0.02 -39° 0seconds
01:00
0.3 0% 5% 0.06 - 91% 30% 62% 46% 0.02 -38° 0seconds
02:00
0.3 0% 4% 0.06 - 99% 53% 94% 58% 0.02 -33° 0seconds
03:00
0.28 0% 3% 0.07 - 100% 78% 100% 70% 0.02 -25° 0seconds
04:00
0.28 0% 2% 0.07 - 100% 72% 100% 70% 0.02 -15° 0seconds
05:00
0.28 0% 2% 0.07 - 100% 74% 100% 71% 0.02 -4.3° 0seconds
06:00
0.26 0% 1% 0.08 - 100% 24% 100% 72% 0.02 7.6° 0seconds
07:00
0.27 0% 3% 0.08 - 100% 15% 100% 76% 0.02 20° 0seconds
08:00
0.28 0% 4% 0.09 - 100% 55% 100% 79% 0.03 33° 0seconds
09:00
0.28 0% 6% 0.1 - 100% 21% 89% 83% 0.03 46° 0seconds
10:00
0.28 1% 11% 0.1 - 100% 93% 28% 83% 0.03 58° 3600seconds
11:00
0.28 2% 15% 0.1 - 100% 93% 3% 82% 0.03 71° 3600seconds
12:00
0.27 3% 20% 0.09 - 100% 96% 0% 82% 0.03 80° 3600seconds
13:00
0.27 3% 20% 0.09 - 100% 95% 67% 86% 0.03 76° 3600seconds
14:00
0.28 3% 20% 0.09 - 100% 98% 58% 91% 0.03 64° 3600seconds
15:00
0.28 3% 20% 0.08 - 47% 66% 0% 96% 0.03 52° 3600seconds
16:00
0.27 7% 24% 0.08 - 5% 30% 0% 92% 0.03 39° 3600seconds
17:00
0.27 10% 28% 0.08 - 47% 24% 4% 88% 0.03 26° 3600seconds
18:00
0.26 14% 32% 0.08 - 65% 17% 6% 85% 0.03 13° 3600seconds
19:00
0.26 15% 32% 0.08 - 23% 26% 4% 87% 0.03 1.6° 3600seconds
20:00
0.27 16% 33% 0.08 - 0% 27% 0% 89% 0.03 -10° 3600seconds
21:00
0.26 17% 33% 0.08 - 20% 35% 0% 91% 0.03 -21° 3600seconds
22:00
- 18% 33% - - 2% 48% 0% 90% - -29° 0seconds
23:00
- 20% 34% - - 27% 69% 0% 89% - -36° 0seconds
Tue, May 26 Sunrise 05:18 Sunset 19:10
24:00
- 21% 34% - - 6% 94% 0% 88% - -38° 0seconds
01:00
- 21% 34% - - 31% 95% 0% 85% - -37° 0seconds
02:00
- 21% 33% - - 5% 95% 2% 82% - -33° 0seconds
03:00
- 21% 33% - - 5% 96% 4% 79% - -25° 0seconds
04:00
- 20% 32% - - 94% 96% 2% 80% - -15° 0seconds
05:00
- 19% 32% - - 31% 98% 0% 81% - -4.2° 0seconds
06:00
- 18% 31% - - 44% 72% 0% 82% - 7.7° 0seconds
07:00
- 15% 29% - - 75% 89% 0% 82% - 20° 0seconds
08:00
- 12% 27% - - 16% 96% 0% 82% - 33° 0seconds
09:00
- 9% 25% - - 87% 22% 3% 82% - 46° 0seconds
10:00
- 9% 26% - - 52% 26% 5% 84% - 58° 3600seconds
11:00
- 10% 28% - - 100% 53% 5% 86% - 71° 3600seconds
12:00
- 10% 29% - - 100% 66% 5% 88% - 80° 3600seconds
13:00
- 9% 28% - - 100% 49% 5% 89% - 76° 3600seconds
14:00
- 9% 27% - - 77% 64% 4% 91% - 65° 3600seconds
15:00
- 8% 26% - - 100% 67% 5% 92% - 52° 3600seconds
16:00
- 7% 25% - - 100% 61% 5% 94% - 39° 3600seconds
17:00
- 7% 24% - - 100% 55% 4% 95% - 26° 3600seconds
18:00
- 6% 23% - - 100% 96% 2% 96% - 14° 3600seconds
19:00
- 5% 22% - - 94% 96% 3% 96% - 1.7° 3600seconds
20:00
- 5% 21% - - 100% 100% 31% 96% - -10° 3600seconds
21:00
- 4% 20% - - 100% 99% 44% 97% - -20° 3600seconds
22:00
- 3% 17% - - 100% 99% 21% 98% - -29° 0seconds
23:00
- 2% 14% - - 100% 99% 99% 99% - -35° 0seconds
Wed, May 27 Sunrise 05:18 Sunset 19:10
24:00
- 1% 11% - - 100% 100% 94% 100% - -38° 0seconds
01:00
- 1% 10% - - 100% 100% 100% 100% - -37° 0seconds
02:00
- 0% 8% - - 100% 100% 99% 99% - -32° 0seconds
03:00
- 0% 7% - - 87% 100% 100% 99% - -25° 0seconds
04:00
- 0% 5% - - 59% 99% 98% 99% - -15° 0seconds
05:00
- 0% 4% - - 32% 98% 97% 99% - -4.1° 0seconds
06:00
- 0% 2% - - 4% 97% 95% 99% - 7.7° 0seconds
07:00
- 0% 2% - - 5% 98% 97% 99% - 20° 0seconds
08:00
- 0% 2% - - 5% 99% 98% 100% - 33° 0seconds
09:00
- 0% 2% - - 5% 100% 100% 100% - 46° 0seconds
10:00
- 0% 4% - - 5% 95% 72% 99% - 59° 0seconds
11:00
- 0% 7% - - 5% 89% 43% 99% - 71° 0seconds
12:00
- 0% 9% - - 5% 84% 15% 98% - 80° 0seconds
13:00
- 0% 8% - - 4% 78% 10% 99% - 76° 0seconds
14:00
- 0% 7% - - 3% 73% 5% 99% - 65° 0seconds
15:00
- 0% 6% - - 2% 68% 0% 100% - 52° 0seconds
16:00
- 0% 6% - - 3% 70% 0% 98% - 39° 0seconds
17:00
- 0% 6% - - 4% 72% 0% 96% - 26° 0seconds
18:00
- 0% 6% - - 5% 74% 0% 94% - 14° 0seconds
19:00
- 0% 6% - - 3% 71% 0% 94% - 1.8° 0seconds
20:00
- 0% 5% - - 2% 68% 0% 94% - -9.9° 0seconds
21:00
- 0% 5% - - 0% 65% 0% 94% - -20° 0seconds
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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