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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

No opportunities right now
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 Spread6.2°C
Visibility24135 (Clear)
Relative Humidity68%
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%
Wed, Jul 8
05:0055%
06:0055%
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%
Thu, Jul 9
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%
Fri, Jul 10
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%
Sat, Jul 11
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
Wed, Jul 8 Sunrise 04:47 Sunset 21:39
15:00
93% 17°C 0mm 68% 0cm 53° 23°C 0mm 0.91kPa 24135m 4.1m/s 3.6m/s
16:00
99% 16°C 0mm 66% 0cm 46° 23°C 0mm 0.97kPa 24135m 4.2m/s 3.7m/s
17:00
99% 16°C 0mm 64% 0cm 37° 23°C 0mm 0.99kPa 24135m 4m/s 3.2m/s
18:00
100% 15°C 0mm 65% 0cm 29° 22°C 0mm 0.95kPa 24135m 3.6m/s 2.4m/s
19:00
100% 16°C 0mm 69% 0cm 20° 22°C 0mm 0.81kPa 24134m 2.9m/s 1.7m/s
20:00
98% 17°C 0mm 78% 0cm 12° 21°C 0mm 0.52kPa 24134m 1.3m/s 1.3m/s
21:00
96% 15°C 0mm 83% 0cm 18°C 0mm 0.33kPa 24134m 1.4m/s 1.4m/s
22:00
94% 13°C 0mm 86% 0cm -2.8° 16°C 0mm 0.25kPa 24135m 1.1m/s 1.1m/s
23:00
90% 12°C 0mm 85% 0cm -8.3° 15°C 0mm 0.25kPa 24134m 1m/s 1m/s
Thu, Jul 9 Sunrise 04:47 Sunset 21:39
24:00
87% 12°C 0mm 84% 0cm -12° 14°C 0mm 0.25kPa 24134m 1m/s 1.1m/s
01:00
83% 11°C 0mm 84% 0cm -13° 14°C 0mm 0.26kPa 24135m 1.1m/s 1m/s
02:00
88% 11°C 0mm 83% 0cm -13° 13°C 0mm 0.26kPa 24135m 1m/s 1m/s
03:00
94% 10°C 0mm 83% 0cm -10° 13°C 0mm 0.26kPa 24135m 0.9m/s 0.98m/s
04:00
99% 9.7°C 0mm 83% 0cm -5.6° 13°C 0mm 0.24kPa 24134m 1.1m/s 1.1m/s
05:00
99% 9.8°C 0mm 84% 0cm 0.92° 12°C 0mm 0.23kPa 24134m 1.1m/s 1.2m/s
06:00
100% 11°C 0mm 84% 0cm 7.9° 13°C 0mm 0.25kPa 24134m 1.2m/s 1.2m/s
07:00
100% 13°C 0mm 81% 0cm 16° 16°C 0mm 0.33kPa 24135m 1.3m/s 1.1m/s
08:00
100% 14°C 0mm 79% 0cm 25° 17°C 0mm 0.42kPa 24135m 1.7m/s 1.3m/s
09:00
100% 15°C 0mm 76% 0cm 33° 19°C 0mm 0.53kPa 24134m 2.5m/s 1.9m/s
10:00
100% 15°C 0mm 74% 0cm 42° 20°C 0mm 0.63kPa 24135m 2.9m/s 2.1m/s
11:00
100% 16°C 0mm 72% 0cm 50° 21°C 0mm 0.72kPa 24134m 3.5m/s 2.9m/s
12:00
100% 16°C 0mm 69% 0cm 55° 22°C 0mm 0.82kPa 24135m 3.5m/s 3.3m/s
13:00
100% 16°C 0mm 67% 0cm 58° 23°C 0mm 0.92kPa 24135m 3.3m/s 3.3m/s
14:00
100% 16°C 0mm 64% 0cm 57° 23°C 0mm 1kPa 24134m 3.2m/s 3.2m/s
15:00
100% 16°C 0mm 63% 0cm 52° 23°C 0mm 1.1kPa 24135m 3.4m/s 3.5m/s
16:00
100% 16°C 0mm 63% 0cm 46° 23°C 0mm 1kPa 24135m 3.2m/s 3.3m/s
17:00
99% 16°C 0mm 64% 0cm 37° 23°C 0mm 1kPa 24134m 3m/s 3m/s
18:00
99% 16°C 0mm 66% 0cm 29° 22°C 0mm 0.91kPa 24135m 2.6m/s 2.7m/s
19:00
98% 16°C 0mm 71% 0cm 20° 22°C 0mm 0.74kPa 24135m 2.4m/s 2.1m/s
20:00
91% 17°C 0mm 82% 0cm 12° 20°C 0mm 0.43kPa 24134m 1.5m/s 1.6m/s
21:00
83% 16°C 0mm 88% 0cm 3.9° 18°C 0mm 0.24kPa 24135m 1.4m/s 1.4m/s
22:00
76% 15°C 0mm 90% 0cm -2.9° 16°C 0mm 0.19kPa 24135m 1.2m/s 1.3m/s
23:00
76% 14°C 0mm 91% 0cm -8.4° 16°C 0mm 0.16kPa 24135m 1.3m/s 1.3m/s
Fri, Jul 10 Sunrise 04:48 Sunset 21:38
24:00
76% 15°C 0mm 92% 0cm -12° 16°C 0mm 0.14kPa 24135m 1.3m/s 1.3m/s
01:00
76% 15°C 0mm 93% 0cm -14° 16°C 0mm 0.13kPa 24135m 1.5m/s 1.6m/s
02:00
80% 15°C 0mm 92% 0cm -13° 16°C 0mm 0.14kPa 24135m 1.7m/s 1.7m/s
03:00
83% 14°C 0mm 92% 0cm -10° 16°C 0mm 0.15kPa 24135m 1.6m/s 1.7m/s
04:00
87% 14°C 0mm 91% 0cm -5.7° 15°C 0mm 0.16kPa 24134m 1.8m/s 1.9m/s
05:00
86% 13°C 0mm 90% 0cm 0.81° 15°C 0mm 0.17kPa 24135m 1.8m/s 1.8m/s
06:00
85% 14°C 0mm 88% 0cm 7.8° 16°C 0mm 0.22kPa 24134m 1.8m/s 1.9m/s
07:00
84% 15°C 0mm 84% 0cm 16° 18°C 0mm 0.32kPa 24135m 2.1m/s 1.7m/s
08:00
66% 15°C 0mm 76% 0cm 25° 19°C 0mm 0.53kPa 24134m 2.1m/s 1.5m/s
09:00
47% 15°C 0mm 70% 0cm 33° 21°C 0mm 0.73kPa 24134m 2.8m/s 1.6m/s
10:00
29% 15°C 0mm 65% 0cm 42° 22°C 0mm 0.94kPa 24135m 3.1m/s 2m/s
11:00
25% 15°C 0mm 61% 0cm 49° 23°C 0mm 1.1kPa 24134m 3.6m/s 2.9m/s
12:00
22% 16°C 0mm 57% 0cm 55° 24°C 0mm 1.3kPa 24134m 3.3m/s 2.6m/s
13:00
18% 15°C 0mm 54% 0cm 58° 25°C 0mm 1.5kPa 24134m 2.6m/s 2m/s
14:00
22% 16°C 0mm 51% 0cm 57° 26°C 0mm 1.7kPa 24135m 2.2m/s 1.4m/s
15:00
25% 15°C 0mm 48% 0cm 52° 27°C 0mm 1.9kPa 24134m 1.8m/s 0.55m/s
16:00
29% 15°C 0mm 47% 0cm 45° 27°C 0mm 1.9kPa 24134m 1.9m/s 1.2m/s
17:00
24% 16°C 0mm 48% 0cm 37° 27°C 0mm 1.9kPa 24135m 1.6m/s 1.3m/s
18:00
20% 18°C 0mm 57% 0cm 29° 27°C 0mm 1.5kPa 24135m 1.2m/s 2.2m/s
19:00
15% 19°C 0mm 67% 0cm 20° 26°C 0mm 1.1kPa 24135m 3.2m/s 2.1m/s
20:00
17% 18°C 0mm 76% 0cm 11° 22°C 0.13mm 0.64kPa 21209m 2.8m/s 2.2m/s
21:00
19% 15°C 0mm 85% 0cm 3.8° 18°C 0.25mm 0.32kPa 18283m 2.4m/s 2.2m/s
22:00
21% 13°C 0mm 94% 0cm -3° 14°C 0.38mm 0.1kPa 15357m 2m/s 2.3m/s
23:00
19% 14°C 0mm 94% 0cm -8.5° 14°C 0.54mm 0.1kPa 11608m 3.4m/s 2.6m/s
Sat, Jul 11 Sunrise 04:49 Sunset 21:37
24:00
18% 14°C 0mm 94% 0cm -12° 15°C 0.71mm 0.1kPa 7859m 4.7m/s 2.8m/s
01:00
16% 14°C 0mm 94% 0cm -14° 15°C 0.88mm 0.1kPa 4111m 6m/s 3.1m/s
02:00
21% 15°C 0.01mm 92% 0cm -13° 16°C 0.77mm 0.15kPa 10785m 6m/s 3.3m/s
03:00
26% 15°C 0.03mm 89% 0cm -10° 17°C 0.67mm 0.21kPa 17460m 6m/s 3.5m/s
04:00
31% 15°C 0.04mm 86% 0cm -5.8° 17°C 0.56mm 0.28kPa 24135m 6m/s 3.7m/s
05:00
30% 15°C 0.03mm 80% 0cm 0.7° 18°C 0.58mm 0.42kPa 24135m 5.9m/s 4.2m/s
06:00
29% 15°C 0.02mm 74% 0cm 7.7° 20°C 0.6mm 0.58kPa 24135m 5.8m/s 4.6m/s
07:00
28% 15°C 0.01mm 68% 0cm 16° 21°C 0.63mm 0.77kPa 24135m 5.7m/s 5.1m/s
08:00
31% 15°C 0.007mm 68% 0cm 24° 21°C 0.42mm 0.79kPa 24135m 5.8m/s 5.1m/s
09:00
33% 15°C 0.003mm 68% 0cm 33° 21°C 0.21mm 0.8kPa 24135m 5.9m/s 5.1m/s
10:00
36% 15°C 0mm 67% 0cm 42° 21°C 0mm 0.82kPa 24135m 5.9m/s 5.1m/s
11:00
36% 15°C 0mm 72% 0cm 49° 20°C 0.04mm 0.63kPa 24135m 6.9m/s 5.7m/s
12:00
35% 14°C 0mm 78% 0cm 55° 18°C 0.08mm 0.47kPa 24135m 7.9m/s 6.3m/s
13:00
35% 14°C 0mm 83% 0cm 58° 17°C 0.13mm 0.33kPa 24135m 8.8m/s 6.8m/s
14:00
33% 13°C 0mm 86% 0cm 57° 16°C 0.1mm 0.25kPa 24135m 9m/s 6.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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