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Rule Fire Sky

Mendocino - Fire Sky - California Coast

Mendocino City, California, United States

Those rare, intensely red and orange sunset skies

Currently

Real-time conditions
Low Cloud Cover91%
Mid Cloud Cover100%
High Cloud Cover0%
Aerosol Optical Depth0.1dimensionless
Sun Elevation54.8° (Daylight)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Los_Angeles
fire-sky weather icon
Next opportunity
Spectacular Fiery Red Sky at Sunrise
Mendocino
Fri, Apr 17 · 06:17–07:00 · 1h window
Medium confidence
60%
🔥Fiery Red Sky Potential100%
Low Cloud Cover: 0%
Mid Cloud Cover: 35%
High Cloud Cover: 37%
Sun Elevation: -7.3° (Nautical twilight)

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the spectacular sunset conditions that ignite California's coastline with dramatic color. We combine cloud coverage patterns, marine layer behavior, and atmospheric clarity to predict when Pacific sunsets will produce intense fire-sky displays.

California's coast offers fire-sky conditions when Pacific weather patterns align perfectly—usually involving clearing after storms, or when the marine layer breaks up at sunset. The dramatic topography of locations like Big Sur means sunsets can be enhanced by coastal mountains and dramatic cliff profiles.

What makes the California coast special for fire-sky photography:

  • Pacific sunset drama - Unobstructed western exposure means direct sunset over ocean
  • Marine layer burn-off - When fog clears at golden hour, moisture in air scatters light intensely
  • Big Sur cliffs - Dramatic coastal mountains silhouetted against blazing Pacific sunsets
  • Point Reyes exposure - Windswept peninsula catches full force of Pacific sunset color

Big Sur offers California's most dramatic fire-sky opportunities—when conditions align, the combination of towering coastal cliffs, crashing waves, and burning Pacific sunset creates legendary images. McWay Falls dropping onto the beach under fire-sky conditions is particularly spectacular. Point Reyes lighthouse perched on its windswept cliff becomes a dramatic silhouette when Pacific sunsets ignite. The marine layer plays a crucial role—when morning fog burns off completely but leaves moisture in the air, that moisture scatters sunset light into intense colors. Malibu's sea stacks and southern exposure can produce dramatic winter sunsets. The key is timing post-frontal clearing or marine layer dynamics. Our forecast tracks these patterns to identify when Pacific sunsets will be most dramatic. Winter storms followed by clearing provide the most intense conditions—atmospheric particulates from storm systems enhance color scattering.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Los_Angeles
Golden Hour
Any
Fiery Red Sky Potential
≥ 65.0%
Precipitation Chance
≤ 15.0%
Visibility
≥ 8000.0m
Fri, Apr 10
12:000%90%7207m
13:000%86%502m
14:000%82%7428m
15:000%88%21547m
16:000%93%13973m
17:000%99%24134m
18:000%100%6656m
19:000%100%24124m
20:0014%100%21448m
21:000%100%10865m
22:000%100%12901m
23:000%100%24134m
Sat, Apr 11
24:000%100%24127m
01:000%100%18260m
02:000%100%13276m
03:000%100%13917m
04:000%100%16608m
05:000%100%16373m
06:000%100%17264m
07:000%100%20518m
08:000%100%21800m
09:000%100%24135m
10:000%100%24135m
11:000%100%24135m
12:000%94%24131m
13:000%88%8487m
14:000%82%24124m
15:000%82%5046m
16:000%81%5479m
17:000%81%10485m
18:000%83%22537m
19:000%86%24135m
20:001.8%88%24135m
21:000%92%24134m
22:000%96%24135m
23:000%100%24134m
Sun, Apr 12
24:000%95%20076m
01:000%91%23890m
02:000%87%24134m
03:000%82%14583m
04:000%78%4159m
05:000%73%7972m
06:000%61%6708m
07:000%49%6680m
08:000%38%14592m
09:000%42%24135m
10:000%47%24130m
11:000%52%24134m
12:000%54%24134m
13:000%55%24133m
14:000%56%24126m
15:000%60%20166m
16:000%64%24135m
17:000%69%24135m
18:000%53%23500m
19:000%38%19415m
20:003%22%18909m
21:000%31%24134m
22:000%41%24134m
23:000%50%24135m
Mon, Apr 13
24:000%41%24135m
01:000%31%24134m
02:000%22%24135m
03:000%22%24134m
04:000%22%24135m
05:000%22%24135m
06:000.8%15%24135m
07:0039%7.4%24135m
08:000%0%24134m
09:000%0%24134m
10:000%0%24135m
11:000%0%24135m
12:000%0%24134m
13:000%0%24135m
14:000%0%24134m
15:000%0%24135m
16:000%0%24135m
17:000%0%24134m
18:000%0%24134m
19:000%0%24135m
20:0016%0%24135m
21:000%0%24135m
22:000%0%24135m
23:000%0%24135m
Tue, Apr 14
24:000%0%24135m
01:000%0%24135m
02:000%0%24135m
03:000%0%24135m
04:000%0%24135m
05:000%0%24135m
06:002.4%0%24135m
07:0016%0%24135m
08:000%0%24135m
09:000%0%24135m
10:000%0%24135m
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
America/Los_Angeles
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
Sat, Apr 11 Sunrise 06:44 Sunset 19:47
12:00
0.14 0% 2% 0.004 - 0% 91% 100% 70% 0.005 55° 3600seconds
13:00
0.17 0% 3% 0.003 - 0% 100% 100% 82% 0.005 59° 3600seconds
14:00
0.18 0% 3% 0.002 - 0% 72% 100% 94% 0.005 58° 3600seconds
15:00
0.12 0% 3% 0.002 - 0% 100% 100% 73% 0.005 51° 3600seconds
16:00
0.09 0% 2% 0.001 - 100% 100% 100% 52% 0.004 42° 3600seconds
17:00
0.09 0% 2% 0.002 - 100% 100% 100% 30% 0.004 32° 3600seconds
18:00
0.11 0% 5% 0.003 - 100% 49% 100% 48% 0.005 20° 0seconds
19:00
0.12 0% 7% 0.003 - 100% 6% 100% 65% 0.006 8.7° 0seconds
20:00
0.16 0% 10% 0.003 - 100% 4% 100% 83% 0.007 -2.8° 0seconds
21:00
0.2 0% 10% 0.003 - 2% 5% 100% 87% 0.007 -14° 0seconds
22:00
0.2 0% 10% 0.002 - 0% 4% 37% 92% 0.007 -24° 0seconds
23:00
0.2 0% 10% 0.002 - 0% 70% 86% 97% 0.007 -33° 0seconds
Sun, Apr 12 Sunrise 06:42 Sunset 19:48
24:00
0.18 0% 9% 0.002 - 0% 100% 100% 97% 0.008 -39° 0seconds
01:00
0.17 0% 9% 0.002 - 0% 100% 100% 97% 0.008 -42° 0seconds
02:00
0.15 0% 8% 0.002 - 0% 30% 100% 96% 0.007 -41° 0seconds
03:00
0.12 0% 7% 0.002 - 0% 100% 100% 94% 0.007 -36° 0seconds
04:00
0.13 0% 7% 0.002 - 0% 100% 100% 92% 0.006 -29° 0seconds
05:00
0.12 0% 6% 0.002 - 0% 100% 100% 90% 0.006 -19° 0seconds
06:00
0.11 0% 6% 0.002 - 0% 100% 100% 78% 0.007 -8.7° 0seconds
07:00
0.1 0% 7% 0.002 - 0% 100% 100% 65% 0.007 2.8° 0seconds
08:00
0.11 0% 7% 0.002 - 0% 100% 98% 52% 0.007 14° 0seconds
09:00
0.1 0% 9% 0.002 - 0% 98% 100% 63% 0.007 26° 0seconds
10:00
0.09 0% 12% 0.002 - 0% 97% 63% 74% 0.007 37° 0seconds
11:00
0.09 0% 14% 0.002 - 0% 67% 15% 85% 0.006 47° 0seconds
12:00
0.09 14% 20% 0.002 - 3% 44% 87% 78% 0.006 55° 3600seconds
13:00
0.08 27% 25% 0.002 - 58% 32% 95% 71% 0.005 59° 3600seconds
14:00
0.07 41% 31% 0.002 - 1% 56% 100% 64% 0.005 58° 3600seconds
15:00
0.07 40% 31% 0.002 - 0% 92% 16% 67% 0.004 52° 3600seconds
16:00
0.07 40% 30% 0.002 - 1% 71% 8% 71% 0.004 42° 3600seconds
17:00
0.08 39% 30% 0.002 - 1% 90% 23% 74% 0.004 32° 3600seconds
18:00
- 31% 30% - - 4% 100% 87% 73% - 20° 0seconds
19:00
- 23% 29% - - 0% 100% 4% 72% - 8.8° 0seconds
20:00
- 15% 29% - - 63% 100% 39% 71% - -2.6° 0seconds
21:00
- 17% 28% - - 100% 100% 100% 73% - -14° 0seconds
22:00
- 20% 28% - - 56% 100% 5% 75% - -24° 0seconds
23:00
- 22% 27% - - 15% 95% 0% 77% - -32° 0seconds
Mon, Apr 13 Sunrise 06:41 Sunset 19:49
24:00
- 39% 27% - - 0% 65% 0% 69% - -39° 0seconds
01:00
- 55% 26% - - 0% 43% 0% 62% - -41° 0seconds
02:00
- 72% 26% - - 0% 32% 0% 55% - -40° 0seconds
03:00
- 74% 24% - - 0% 67% 0% 54% - -36° 0seconds
04:00
- 75% 22% - - 0% 66% 0% 54% - -28° 0seconds
05:00
- 77% 20% - - 0% 45% 0% 54% - -19° 0seconds
06:00
- 71% 26% - - 5% 42% 0% 55% - -8.4° 0seconds
07:00
- 66% 31% - - 44% 34% 0% 56% - 0seconds
08:00
- 60% 37% - - 66% 39% 0% 58% - 14° 0seconds
09:00
- 60% 36% - - 90% 63% 4% 59% - 26° 0seconds
10:00
- 60% 36% - - 100% 71% 94% 60% - 37° 0seconds
11:00
- 60% 35% - - 55% 45% 99% 62% - 47° 3600seconds
12:00
- 70% 29% - - 5% 14% 63% 59% - 56° 3600seconds
13:00
- 80% 24% - - 5% 5% 5% 57% - 60° 3600seconds
14:00
- 90% 18% - - 5% 9% 3% 54% - 58° 3600seconds
15:00
- 92% 15% - - 0% 7% 0% 50% - 52° 3600seconds
16:00
- 94% 13% - - 0% 5% 0% 45% - 43° 3600seconds
17:00
- 96% 10% - - 0% 4% 0% 41% - 32° 3600seconds
18:00
- 97% 7% - - 2% 3% 2% 35% - 21° 2400seconds
19:00
- 99% 4% - - 3% 1% 3% 29% - 1200seconds
20:00
- 100% 1% - - 5% 0% 5% 23% - -2.4° 0seconds
21:00
- 100% 1% - - 35% 0% 36% 20% - -13° 0seconds
22:00
- 100% 0% - - 66% 0% 68% 17% - -23° 0seconds
23:00
- 100% 0% - - 96% 0% 99% 14% - -32° 0seconds
Tue, Apr 14 Sunrise 06:39 Sunset 19:50
24:00
- 96% 7% - - 66% 0% 68% 12% - -38° 0seconds
01:00
- 93% 15% - - 35% 0% 36% 10% - -41° 0seconds
02:00
- 89% 22% - - 5% 0% 5% 8.5% - -40° 0seconds
03:00
- 85% 23% - - 4% 0% 4% 8.1% - -35° 1200seconds
04:00
- 82% 23% - - 3% 0% 3% 7.6% - -28° 2400seconds
05:00
- 78% 24% - - 1% 0% 2% 7.2% - -19° 3600seconds
06:00
- 69% 30% - - 3% 0% 1% 5.7% - -8.1° 3600seconds
07:00
- 59% 35% - - 4% 0% 1% 4.3% - 3.3° 3600seconds
08:00
- 50% 41% - - 5% 0% 0% 2.8% - 15° 3600seconds
09:00
- 48% 37% - - 11% 0% 0% 13% - 26° 3600seconds
10:00
- 46% 33% - - 16% 0% 0% 23% - 37° 3600seconds
11:00
- 44% 29% - - 22% 0% 0% 33% - 48° 3600seconds
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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