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Rule Fog Hunter

Gordale Scar - Fog Hunter - Yorkshire Dales

Malham, England, United Kingdom

Thick, moody fog for atmospheric forest and landscape shots

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Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 75.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Dewpoint Spread6.8°C
Visibility24135 (Clear)
Relative Humidity64%
Wind Speed3.6m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

What this forecast looks for

Plain-language explanation from the rule

This forecast predicts when temperature inversions and fog conditions create atmospheric valley scenes in the Yorkshire Dales. We track overnight cooling, humidity, wind speed, and topography to identify when fog fills limestone valleys while peaks emerge above.

The Yorkshire Dales' distinctive U-shaped valleys carved by glaciers create natural bowls that trap cold air and fog, while high ground like Pen-y-ghent and Ingleborough rises above the mist layer. The combination of limestone formations, ancient stone walls, and historic barns emerging from fog creates quintessentially northern English scenes.

What makes Yorkshire Dales fog photography special:

  • Valley inversions - Deep dales fill with fog while peaks and high pastures stay clear in sunshine
  • Limestone drama - Malham Cove's 260-foot cliff and limestone pavement emerge from dawn mist
  • Stone-wall patterns - Traditional dry-stone walls create geometric patterns disappearing into fog
  • Historic structures - Ribblehead Viaduct's 24 arches pierce fog layers like a Victorian ghost ship

Malham Cove becomes magical when fog pools in the valley below its curved limestone amphitheater—arrive before dawn to capture the cliffs emerging as mist burns off. Ribblehead Viaduct crossing fog-filled valleys creates iconic compositions, especially with early light. From Pen-y-ghent summit, fog inversions reveal only the highest peaks above a sea of white. The limestone pavements near Malham and Ingleborough become otherworldly when patches of fog drift through their geometric patterns. Best conditions occur on clear, calm autumn and winter nights when valley temperatures drop rapidly. Winter fog can persist all day in sheltered valleys, providing extended shooting windows.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 80 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Sun, May 24
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, May 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%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Tue, May 26
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%
Wed, May 27
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%
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
Europe/London
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, May 24 Sunrise 04:52 Sunset 21:19
14:00
63% 12°C 0mm 64% 0cm 55° 19°C 0mm 0.77kPa 24135m 4.4m/s 3.6m/s
15:00
80% 12°C 0mm 61% 0cm 50° 19°C 0mm 0.86kPa 24135m 4.7m/s 3.6m/s
16:00
96% 11°C 0mm 58% 0cm 43° 19°C 0mm 0.92kPa 24134m 4.6m/s 3.2m/s
17:00
97% 11°C 0mm 58% 0cm 35° 19°C 0mm 0.91kPa 24134m 4.3m/s 2.8m/s
18:00
98% 11°C 0mm 62% 0cm 26° 18°C 0mm 0.81kPa 24134m 3.5m/s 2.2m/s
19:00
99% 12°C 0mm 70% 0cm 18° 18°C 0mm 0.61kPa 24134m 3.5m/s 1.3m/s
20:00
99% 11°C 0mm 74% 0cm 9.3° 16°C 0mm 0.46kPa 24135m 1.1m/s 1.1m/s
21:00
100% 8.9°C 0mm 78% 0cm 1.8° 13°C 0mm 0.33kPa 24134m 1m/s 1m/s
22:00
100% 7.5°C 0mm 78% 0cm -5.1° 11°C 0mm 0.3kPa 24135m 0.71m/s 0.7m/s
23:00
100% 6.7°C 0mm 76% 0cm -10° 11°C 0mm 0.31kPa 24134m 0.7m/s 0.73m/s
Mon, May 25 Sunrise 04:52 Sunset 21:19
24:00
100% 5.7°C 0mm 72% 0cm -14° 11°C 0mm 0.36kPa 24135m 0.61m/s 0.64m/s
01:00
100% 5.1°C 0mm 69% 0cm -15° 11°C 0mm 0.39kPa 24135m 0.6m/s 0.6m/s
02:00
100% 4.5°C 0mm 66% 0cm -14° 10°C 0mm 0.42kPa 24135m 0.31m/s 0.28m/s
03:00
100% 4.1°C 0mm 65% 0cm -11° 10°C 0mm 0.44kPa 24135m 0.22m/s 0.14m/s
04:00
100% 3.8°C 0mm 64% 0cm -6.1° 10°C 0mm 0.45kPa 24135m 0.33m/s 0.29m/s
05:00
100% 3.5°C 0mm 63% 0cm 0.68° 10°C 0mm 0.45kPa 24134m 0.3m/s 0.26m/s
06:00
100% 5.5°C 0mm 67% 0cm 7.9° 11°C 0mm 0.44kPa 24134m 0.2m/s 0.23m/s
07:00
100% 8.3°C 0mm 68% 0cm 16° 14°C 0mm 0.53kPa 24134m 0.3m/s 0.2m/s
08:00
100% 9.3°C 0mm 64% 0cm 25° 16°C 0mm 0.65kPa 24135m 1.1m/s 0.79m/s
09:00
100% 11°C 0mm 64% 0cm 34° 18°C 0mm 0.72kPa 24134m 1.7m/s 1.2m/s
10:00
100% 12°C 0mm 64% 0cm 42° 19°C 0mm 0.81kPa 24135m 2.4m/s 1.6m/s
11:00
100% 13°C 0mm 61% 0cm 49° 21°C 0mm 0.94kPa 24135m 3.1m/s 1.8m/s
12:00
100% 14°C 0mm 60% 0cm 55° 22°C 0mm 1kPa 24134m 3.6m/s 2.4m/s
13:00
100% 14°C 0mm 60% 0cm 57° 23°C 0mm 1.1kPa 24135m 4.2m/s 2.9m/s
14:00
100% 15°C 0mm 61% 0cm 55° 23°C 0mm 1.1kPa 24134m 4.5m/s 3.1m/s
15:00
100% 16°C 0mm 61% 0cm 50° 24°C 0mm 1.1kPa 24134m 4.5m/s 3.1m/s
16:00
100% 16°C 0mm 61% 0cm 43° 24°C 0mm 1.1kPa 24134m 4.2m/s 2.7m/s
17:00
100% 16°C 0mm 62% 0cm 35° 24°C 0mm 1.1kPa 24134m 3m/s 1.9m/s
18:00
100% 17°C 0mm 66% 0cm 26° 24°C 0mm 1kPa 24135m 1.4m/s 1.6m/s
19:00
100% 18°C 0mm 76% 0cm 18° 23°C 0mm 0.66kPa 24134m 1.9m/s 1.7m/s
20:00
100% 17°C 0mm 80% 0cm 9.4° 21°C 0mm 0.49kPa 24135m 1.5m/s 1.5m/s
21:00
100% 15°C 0mm 83% 0cm 18°C 0.38mm 0.34kPa 17267m 1.1m/s 1m/s
22:00
100% 14°C 0mm 82% 0cm -4.9° 17°C 0.56mm 0.34kPa 24135m 0.51m/s 0.45m/s
23:00
100% 13°C 0mm 81% 0cm -10° 16°C 0.56mm 0.36kPa 24134m 0.71m/s 0.74m/s
Tue, May 26 Sunrise 04:51 Sunset 21:20
24:00
100% 13°C 0mm 82% 0cm -14° 16°C 0.63mm 0.34kPa 24134m 0.62m/s 0.57m/s
01:00
100% 13°C 0mm 83% 0cm -15° 16°C 0.63mm 0.31kPa 24135m 0.42m/s 0.43m/s
02:00
99% 12°C 0mm 83% 0cm -14° 15°C 0mm 0.3kPa 24134m 0.61m/s 0.65m/s
03:00
99% 12°C 0mm 83% 0cm -11° 15°C 0mm 0.3kPa 24135m 0.61m/s 0.62m/s
04:00
98% 12°C 0mm 82% 0cm -6° 15°C 0mm 0.3kPa 24134m 0.72m/s 0.71m/s
05:00
97% 12°C 0mm 82% 0cm 0.8° 15°C 0mm 0.3kPa 24134m 0.7m/s 0.74m/s
06:00
97% 13°C 0mm 82% 0cm 16°C 0mm 0.32kPa 24134m 0.61m/s 0.69m/s
07:00
96% 15°C 0mm 80% 0cm 16° 18°C 0mm 0.41kPa 24135m 0.51m/s 0.52m/s
08:00
92% 15°C 0mm 77% 0cm 25° 19°C 0mm 0.51kPa 24134m 0.6m/s 0.58m/s
09:00
89% 16°C 0mm 75% 0cm 34° 21°C 0mm 0.61kPa 24135m 0.52m/s 0.59m/s
10:00
85% 17°C 0mm 72% 0cm 42° 22°C 0mm 0.73kPa 24134m 0.6m/s 0.66m/s
11:00
81% 18°C 0mm 71% 0cm 49° 23°C 0mm 0.82kPa 24135m 0.72m/s 0.64m/s
12:00
77% 18°C 0mm 70% 0cm 55° 24°C 0.31mm 0.87kPa 15281m 0.9m/s 0.51m/s
13:00
73% 18°C 0mm 69% 0cm 57° 24°C 0.75mm 0.93kPa 15262m 0.92m/s 0.24m/s
14:00
51% 18°C 0mm 69% 0cm 56° 24°C 0.63mm 0.93kPa 24134m 0.9m/s 0.09m/s
15:00
28% 18°C 0.01mm 70% 0cm 51° 24°C 1.3mm 0.91kPa 24135m 0.83m/s 0.41m/s
16:00
6% 18°C 0mm 70% 0cm 44° 24°C 1.9mm 0.89kPa 15189m 0.71m/s 0.94m/s
17:00
5% 19°C 0mm 74% 0cm 35° 23°C 2.4mm 0.75kPa 15584m 1.5m/s 2.3m/s
18:00
4% 19°C 0mm 85% 0cm 27° 21°C 3.1mm 0.37kPa 15592m 4.5m/s 4.8m/s
19:00
3% 17°C 0mm 92% 0cm 18° 19°C 3.3mm 0.17kPa 24134m 7.6m/s 5m/s
20:00
9% 14°C 0mm 88% 0cm 9.6° 16°C 2.2mm 0.22kPa 24134m 7.6m/s 4.4m/s
21:00
15% 10°C 0mm 84% 0cm 2.1° 13°C 1.1mm 0.25kPa 24135m 7.5m/s 3.9m/s
22:00
21% 6.7°C 0mm 79% 0cm -4.7° 10°C 0mm 0.26kPa 24135m 7.5m/s 3.3m/s
23:00
20% 6.7°C 0mm 78% 0cm -9.9° 10°C 0mm 0.27kPa 24135m 7.4m/s 3.2m/s
Wed, May 27 Sunrise 04:49 Sunset 21:22
24:00
18% 6.7°C 0mm 78% 0cm -13° 10°C 0mm 0.29kPa 24135m 7.2m/s 3.1m/s
01:00
17% 6.7°C 0mm 77% 0cm -15° 11°C 0mm 0.3kPa 24135m 7.1m/s 3m/s
02:00
18% 6.8°C 0mm 75% 0cm -14° 11°C 0mm 0.32kPa 24135m 6.5m/s 3m/s
03:00
19% 6.9°C 0mm 74% 0cm -11° 11°C 0mm 0.35kPa 24135m 5.9m/s 3.1m/s
04:00
20% 7°C 0mm 73% 0cm -5.8° 12°C 0mm 0.37kPa 24135m 5.3m/s 3.1m/s
05:00
19% 7.6°C 0mm 71% 0cm 0.92° 13°C 0mm 0.42kPa 24135m 5.7m/s 3.6m/s
06:00
18% 8.1°C 0mm 70% 0cm 8.1° 14°C 0mm 0.47kPa 24135m 6.1m/s 4.1m/s
07:00
17% 8.6°C 0mm 68% 0cm 16° 14°C 0mm 0.52kPa 24135m 6.4m/s 4.7m/s
08:00
17% 8.9°C 0mm 68% 0cm 25° 15°C 0mm 0.54kPa 24135m 6.4m/s 4.7m/s
09:00
17% 9.2°C 0mm 67% 0cm 34° 15°C 0mm 0.56kPa 24135m 6.3m/s 4.8m/s
10:00
17% 9.4°C 0mm 67% 0cm 42° 16°C 0mm 0.58kPa 24135m 6.2m/s 4.9m/s
11:00
17% 9.3°C 0mm 68% 0cm 50° 15°C 0mm 0.54kPa 24135m 6.2m/s 4.7m/s
12:00
18% 9.2°C 0mm 70% 0cm 55° 15°C 0mm 0.5kPa 24135m 6.3m/s 4.4m/s
13:00
18% 9.1°C 0mm 71% 0cm 57° 14°C 0mm 0.47kPa 24135m 6.3m/s 4.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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