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Rule Fog Hunter

Fog Hunter Forecast for Mount Aso, Kyushu

Aso, Kumamoto, Japan

From Aso's rim, layer the inhabited caldera floor, central cones and Nakadake crater; use roads or grassland fences to convey the basin's scale.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.3°C
Visibility24135 (Clear)
Relative Humidity92%
Wind Speed1.7m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Asia/Tokyo

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (95-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Kyushu. The requirements and hourly values below show how those signals apply at Mount Aso.

Explore Fog Hunter conditions across Kyushu →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Mount Aso during the last 365 days.

Last 30 days
6
recorded matching windows · 67% average confidence
Last 90 days
47
recorded matching windows · 84% average confidence
Last 365 days
51
recorded matching windows · 84% average confidence
Most frequent recorded start hour

04:00 local time, shared by 18 of 51 matches recorded in the last 365 days.

Most represented month

July, with 23 of 51 matches recorded in the last 365 days.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Asia/Tokyo
Fog Probability
≥ 75.0%
Sat, Aug 22
04:0053%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sun, Aug 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Mon, Aug 24
24:0053%
01:0055%
02:0053%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, Aug 25
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:0046%
18:0069%
19:0071%
20:0071%
21:0055%
22:0055%
23:0071%
Wed, Aug 26
24:0069%
01:000%
02:000%
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Fog Probability 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
Clear Sky Probability (Ensemble)
%
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Solar Elevation
°
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Visibility
m
Wind Gusts
m/s
Wind Speed
m/s
Sun, Aug 23 Sunrise 05:43 Sunset 18:53
05:00 ☾
77% 19°C 0mm 92% 0cm -9.6° 20°C 0mm 0.19kPa 24135m 1.5m/s 1.7m/s
06:00 ☾
93% 18°C 0mm 87% 0cm 2.7° 20°C 0mm 0.31kPa 24135m 1.6m/s 1.9m/s
07:00 ☾
92% 18°C 0mm 79% 0cm 15° 22°C 0mm 0.56kPa 24134m 2m/s 1.6m/s
08:00 ☾
92% 18°C 0mm 63% 0cm 27° 25°C 0mm 1.2kPa 24134m 1.7m/s 1.2m/s
09:00
91% 17°C 0mm 52% 0cm 40° 28°C 0mm 1.8kPa 24134m 1.8m/s 1.1m/s
10:00
91% 17°C 0mm 46% 0cm 52° 30°C 0mm 2.2kPa 24134m 1.8m/s 1.1m/s
11:00
92% 17°C 0mm 43% 0cm 62° 31°C 0mm 2.6kPa 24134m 2.1m/s 1.1m/s
12:00
92% 18°C 0mm 41% 0cm 68° 33°C 0mm 2.9kPa 24134m 2.4m/s 1m/s
13:00
88% 17°C 0mm 39% 0cm 66° 33°C 0mm 3.1kPa 24134m 2.7m/s 1.5m/s
14:00
84% 17°C 0mm 39% 0cm 58° 33°C 0mm 3.1kPa 24135m 2.7m/s 2.2m/s
15:00
80% 18°C 0mm 40% 0cm 47° 33°C 0mm 3kPa 24135m 2m/s 2.1m/s
16:00
59% 18°C 0mm 41% 0cm 35° 33°C 0mm 2.9kPa 24135m 1.4m/s 1.7m/s
17:00
39% 20°C 0mm 53% 0cm 23° 31°C 0mm 2.1kPa 24134m 2.3m/s 1.4m/s
18:00
18% 21°C 0mm 70% 0cm 10° 26°C 0.06mm 1kPa 24134m 1.5m/s 1.3m/s
19:00 ☾
21% 20°C 0mm 79% 0cm -2.2° 24°C 0.13mm 0.63kPa 24134m 1.3m/s 1.3m/s
20:00 ☾
24% 21°C 0mm 86% 0cm -14° 23°C 0.13mm 0.39kPa 24135m 1.3m/s 1.4m/s
21:00 ☾
27% 21°C 0mm 90% 0cm -25° 22°C 0.13mm 0.26kPa 24135m 1.5m/s 1.6m/s
22:00 ☾
49% 21°C 0mm 93% 0cm -35° 22°C 0mm 0.18kPa 24135m 1.5m/s 1.6m/s
23:00 ☾
71% 21°C 0mm 96% 0cm -42° 22°C 0mm 0.12kPa 24134m 1.4m/s 1.6m/s
Mon, Aug 24 Sunrise 05:44 Sunset 18:52
24:00 ☾
93% 21°C 0mm 96% 0cm -46° 22°C 0mm 0.09kPa 24135m 1.4m/s 1.6m/s
01:00 ☾
93% 21°C 0mm 97% 0cm -45° 21°C 0mm 0.08kPa 24135m 1.3m/s 1.5m/s
02:00 ☾
93% 20°C 0mm 96% 0cm -40° 21°C 0mm 0.11kPa 24134m 1.2m/s 1.3m/s
03:00 ☾
93% 19°C 0mm 94% 0cm -31° 20°C 0mm 0.14kPa 24135m 1.2m/s 1.4m/s
04:00 ☾
88% 19°C 0mm 93% 0cm -21° 20°C 0mm 0.17kPa 24134m 1.2m/s 1.4m/s
05:00 ☾
84% 18°C 0mm 91% 0cm -9.7° 20°C 0mm 0.21kPa 24134m 1.4m/s 1.7m/s
06:00 ☾
79% 18°C 0mm 89% 0cm 2.6° 20°C 0mm 0.26kPa 24134m 1.6m/s 1.9m/s
07:00 ☾
83% 19°C 0mm 82% 0cm 15° 22°C 0mm 0.47kPa 24134m 2.2m/s 1.7m/s
08:00 ☾
87% 19°C 0mm 68% 0cm 27° 25°C 0mm 1kPa 24134m 2m/s 1.3m/s
09:00
91% 18°C 0mm 58% 0cm 40° 27°C 0mm 1.5kPa 24134m 2.1m/s 1.2m/s
10:00
93% 18°C 0mm 51% 0cm 52° 29°C 0mm 2kPa 24134m 2.1m/s 1.3m/s
11:00
96% 18°C 0mm 46% 0cm 62° 31°C 0mm 2.4kPa 24134m 2.4m/s 1.5m/s
12:00
98% 18°C 0mm 43% 0cm 68° 32°C 0mm 2.7kPa 24135m 2.4m/s 1.5m/s
13:00
96% 18°C 0mm 41% 0cm 66° 33°C 0mm 2.9kPa 24134m 2.3m/s 1.8m/s
14:00
94% 18°C 0mm 40% 0cm 58° 33°C 0mm 3.1kPa 24134m 2m/s 2m/s
15:00
92% 17°C 0mm 39% 0cm 47° 33°C 0mm 3kPa 24134m 1.4m/s 1.7m/s
16:00
79% 18°C 0mm 41% 0cm 35° 33°C 0mm 2.9kPa 24134m 1.6m/s 1.5m/s
17:00
67% 20°C 0mm 52% 0cm 22° 31°C 0mm 2.1kPa 24135m 2m/s 1.4m/s
18:00
54% 21°C 0mm 72% 0cm 9.8° 26°C 0.06mm 0.95kPa 24135m 4.5m/s 2.6m/s
19:00 ☾
57% 21°C 0mm 82% 0cm -2.5° 24°C 0.06mm 0.54kPa 24134m 3.5m/s 2.6m/s
20:00 ☾
60% 20°C 0mm 88% 0cm -14° 23°C 0.06mm 0.34kPa 24134m 2.8m/s 2.4m/s
21:00 ☾
63% 20°C 0mm 90% 0cm -26° 22°C 0.06mm 0.26kPa 24134m 2.7m/s 2.4m/s
22:00 ☾
72% 20°C 0mm 91% 0cm -35° 22°C 0mm 0.22kPa 24134m 2.6m/s 2.4m/s
23:00 ☾
80% 20°C 0mm 93% 0cm -42° 21°C 0mm 0.18kPa 24135m 2.8m/s 2.4m/s
Tue, Aug 25 Sunrise 05:44 Sunset 18:50
24:00 ☾
89% 19°C 0mm 92% 0cm -46° 21°C 0mm 0.2kPa 24134m 3m/s 2.6m/s
01:00 ☾
89% 19°C 0mm 91% 0cm -45° 21°C 0mm 0.22kPa 24135m 2.7m/s 2.4m/s
02:00 ☾
89% 18°C 0mm 88% 0cm -40° 20°C 0mm 0.29kPa 24134m 2.7m/s 2.5m/s
03:00 ☾
89% 18°C 0mm 87% 0cm -32° 20°C 0mm 0.31kPa 24135m 2.8m/s 2.6m/s
04:00 ☾
90% 18°C 0mm 86% 0cm -21° 20°C 0mm 0.33kPa 24134m 3.4m/s 2.7m/s
05:00 ☾
90% 17°C 0mm 86% 0cm -9.9° 20°C 0mm 0.33kPa 24134m 3.2m/s 2.7m/s
06:00 ☾
91% 17°C 0mm 86% 0cm 2.4° 20°C 0mm 0.31kPa 24134m 3.5m/s 2.7m/s
07:00 ☾
92% 18°C 0mm 82% 0cm 15° 22°C 0mm 0.47kPa 24135m 3.5m/s 2.3m/s
08:00 ☾
93% 18°C 0mm 66% 0cm 27° 25°C 0mm 1kPa 24134m 3.4m/s 2.3m/s
09:00
94% 16°C 0mm 51% 0cm 40° 27°C 0mm 1.7kPa 24134m 4.5m/s 2.3m/s
10:00
96% 17°C 0mm 56% 0cm 51° 27°C 0mm 1.5kPa 24134m 5m/s 2.6m/s
11:00
97% 18°C 0mm 61% 0cm 62° 26°C 0mm 1.3kPa 24134m 5.5m/s 2.8m/s
12:00
99% 19°C 0mm 66% 0cm 67° 25°C 0mm 1.1kPa 24135m 5.9m/s 3.1m/s
13:00
99% 19°C 0mm 75% 0cm 66° 24°C 0mm 0.74kPa 24135m 5.3m/s 3m/s
14:00
98% 20°C 0mm 84% 0cm 58° 22°C 0mm 0.43kPa 24135m 4.6m/s 2.8m/s
15:00
98% 20°C 0mm 93% 0cm 47° 21°C 0mm 0.17kPa 24135m 3.9m/s 2.7m/s
16:00
88% 20°C 0mm 95% 0cm 35° 21°C 0mm 0.13kPa 18403m 3.6m/s 2.6m/s
17:00
79% 20°C 0mm 96% 0cm 22° 21°C 0mm 0.09kPa 12671m 3.3m/s 2.4m/s
18:00
69% 20°C 0mm 98% 0cm 9.6° 21°C 0mm 0.05kPa 6939m 3m/s 2.2m/s
19:00 ☾
66% 20°C 0mm 97% 0cm -2.8° 21°C 0mm 0.06kPa 12671m 3.2m/s 2.3m/s
20:00 ☾
63% 20°C 0mm 97% 0cm -15° 21°C 0mm 0.07kPa 18403m 3.4m/s 2.4m/s
21:00 ☾
60% 20°C 0mm 97% 0cm -26° 21°C 0mm 0.08kPa 24135m 3.5m/s 2.5m/s
22:00 ☾
55% 20°C 0mm 97% 0cm -35° 21°C 0mm 0.08kPa 18625m 3.8m/s 2.5m/s
23:00 ☾
51% 21°C 0mm 97% 0cm -43° 21°C 0mm 0.07kPa 13116m 4.1m/s 2.4m/s
Wed, Aug 26 Sunrise 05:45 Sunset 18:49
24:00 ☾
46% 21°C 0mm 97% 0cm -46° 21°C 0mm 0.06kPa 7606m 4.3m/s 2.4m/s
01:00 ☾
45% 21°C 0mm 93% 0cm -45° 22°C 0mm 0.19kPa 13116m 5m/s 2.4m/s
02:00 ☾
44% 21°C 0mm 88% 0cm -40° 23°C 0mm 0.33kPa 18625m 5.6m/s 2.5m/s
03:00 ☾
43% 21°C 0mm 83% 0cm -32° 24°C 0mm 0.49kPa 24135m 6.2m/s 2.5m/s
04:00 ☾
42% 21°C 0mm 83% 0cm -22° 24°C 0mm 0.5kPa 24135m 6m/s 2.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →
Forecast generated

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