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Rule Fog Hunter

Buttertubs Pass - Fog Hunter - Yorkshire Dales

Hawes, 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 Spread5.9°C
Visibility24135 (Clear)
Relative Humidity68%
Wind Speed3.8m/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 04:51 Sunset 21:20
14:00
49% 12°C 0mm 68% 0cm 55° 18°C 0mm 0.63kPa 24135m 4.8m/s 3.8m/s
15:00
74% 11°C 0mm 65% 0cm 50° 18°C 0mm 0.7kPa 24135m 5.2m/s 3.8m/s
16:00
100% 9.7°C 0mm 60% 0cm 43° 18°C 0mm 0.79kPa 24134m 5.7m/s 3.8m/s
17:00
100% 8.5°C 0mm 57% 0cm 35° 17°C 0mm 0.83kPa 24134m 6.2m/s 3.4m/s
18:00
100% 8.1°C 0mm 57% 0cm 26° 17°C 0mm 0.81kPa 24134m 5.8m/s 2.3m/s
19:00
100% 9.8°C 0mm 67% 0cm 18° 16°C 0mm 0.61kPa 24134m 6.1m/s 1.7m/s
20:00
100% 9.2°C 0mm 73% 0cm 9.4° 14°C 0mm 0.43kPa 24135m 1.6m/s 1.7m/s
21:00
100% 6.9°C 0mm 75% 0cm 11°C 0mm 0.33kPa 24134m 1.3m/s 1.4m/s
22:00
100% 5.3°C 0mm 73% 0cm -4.9° 9.9°C 0mm 0.33kPa 24135m 1.2m/s 1.3m/s
23:00
100% 4°C 0mm 68% 0cm -10° 9.6°C 0mm 0.38kPa 24134m 1.2m/s 1.1m/s
Mon, May 25 Sunrise 04:51 Sunset 21:20
24:00
100% 3.1°C 0mm 63% 0cm -13° 9.7°C 0mm 0.44kPa 24135m 1.1m/s 1m/s
01:00
100% 2.6°C 0mm 60% 0cm -15° 10°C 0mm 0.5kPa 24135m 1.1m/s 1.1m/s
02:00
100% 2.1°C 0mm 57% 0cm -14° 10°C 0mm 0.53kPa 24135m 1.2m/s 1.2m/s
03:00
100% 1.8°C 0mm 56% 0cm -11° 10°C 0mm 0.55kPa 24135m 1.2m/s 1.2m/s
04:00
100% 1.7°C 0mm 55% 0cm -6° 10°C 0mm 0.56kPa 24135m 1.1m/s 1.2m/s
05:00
100% 1.6°C 0mm 55% 0cm 0.79° 10°C 0mm 0.56kPa 24134m 1.2m/s 1.2m/s
06:00
100% 4.2°C 0mm 62% 0cm 7.9° 11°C 0mm 0.5kPa 24134m 1.2m/s 1.1m/s
07:00
100% 7.6°C 0mm 65% 0cm 16° 14°C 0mm 0.56kPa 24134m 1.3m/s 1.2m/s
08:00
100% 8.2°C 0mm 61% 0cm 25° 16°C 0mm 0.71kPa 24135m 2.3m/s 1.6m/s
09:00
100% 9.2°C 0mm 59% 0cm 33° 17°C 0mm 0.8kPa 24134m 2.8m/s 2m/s
10:00
100% 10°C 0mm 58% 0cm 42° 18°C 0mm 0.89kPa 24135m 4m/s 2.1m/s
11:00
100% 11°C 0mm 56% 0cm 49° 20°C 0mm 1kPa 24135m 4.4m/s 2.3m/s
12:00
100% 11°C 0mm 56% 0cm 54° 20°C 0mm 1.1kPa 24134m 5.1m/s 2.7m/s
13:00
100% 13°C 0mm 58% 0cm 57° 21°C 0mm 1.1kPa 24135m 5.6m/s 3.5m/s
14:00
100% 13°C 0mm 60% 0cm 55° 22°C 0mm 1kPa 24134m 6.1m/s 3.8m/s
15:00
100% 14°C 0mm 61% 0cm 50° 22°C 0mm 1kPa 24134m 6.1m/s 3.8m/s
16:00
100% 14°C 0mm 63% 0cm 43° 22°C 0mm 0.98kPa 24134m 6m/s 3.6m/s
17:00
100% 14°C 0mm 62% 0cm 35° 22°C 0mm 0.99kPa 24134m 4.6m/s 2.3m/s
18:00
100% 14°C 0mm 62% 0cm 27° 22°C 0mm 0.96kPa 24135m 2.9m/s 1.4m/s
19:00
100% 16°C 0mm 70% 0cm 18° 21°C 0mm 0.76kPa 24134m 2.1m/s 0.97m/s
20:00
100% 15°C 0mm 73% 0cm 9.5° 19°C 0mm 0.6kPa 24135m 0.91m/s 0.81m/s
21:00
100% 12°C 0mm 73% 0cm 2.1° 17°C 0.06mm 0.51kPa 24134m 0.81m/s 0.75m/s
22:00
100% 11°C 0mm 74% 0cm -4.7° 16°C 0.06mm 0.46kPa 24135m 0.81m/s 0.71m/s
23:00
100% 11°C 0mm 75% 0cm -9.9° 15°C 0.06mm 0.43kPa 24134m 0.71m/s 0.7m/s
Tue, May 26 Sunrise 04:50 Sunset 21:22
24:00
100% 11°C 0mm 76% 0cm -13° 15°C 0.06mm 0.41kPa 24134m 0.22m/s 0.13m/s
01:00
100% 11°C 0mm 76% 0cm -15° 15°C 0.06mm 0.39kPa 24135m 0.52m/s 0.47m/s
02:00
95% 10°C 0mm 76% 0cm -14° 14°C 0mm 0.39kPa 24134m 0.31m/s 0.08m/s
03:00
90% 10°C 0mm 77% 0cm -11° 14°C 0mm 0.38kPa 24135m 0.41m/s 0.34m/s
04:00
85% 10°C 0mm 77% 0cm -5.8° 14°C 0mm 0.37kPa 24134m 0.42m/s 0.25m/s
05:00
83% 10°C 0mm 77% 0cm 0.91° 14°C 0mm 0.37kPa 24134m 0.3m/s 0.15m/s
06:00
81% 11°C 0mm 77% 0cm 8.1° 16°C 0mm 0.41kPa 24134m 0.31m/s 0.17m/s
07:00
79% 13°C 0mm 75% 0cm 16° 18°C 0mm 0.51kPa 24135m 0.41m/s 0.43m/s
08:00
71% 14°C 0mm 72% 0cm 25° 19°C 0mm 0.61kPa 24134m 0.5m/s 0.57m/s
09:00
63% 15°C 0mm 71% 0cm 34° 20°C 0mm 0.68kPa 24135m 0.22m/s 0.47m/s
10:00
55% 16°C 0mm 70% 0cm 42° 21°C 0mm 0.75kPa 24134m 0.5m/s 0.24m/s
11:00
47% 17°C 0mm 71% 0cm 49° 22°C 0.06mm 0.78kPa 19456m 1m/s 0.57m/s
12:00
40% 17°C 0mm 72% 0cm 55° 22°C 0.5mm 0.76kPa 9756m 1.2m/s 0.73m/s
13:00
32% 17°C 0mm 72% 0cm 57° 22°C 1.1mm 0.75kPa 14881m 1m/s 0.26m/s
14:00
22% 17°C 0mm 72% 0cm 55° 23°C 0.63mm 0.76kPa 24134m 1m/s 0.14m/s
15:00
12% 17°C 0mm 72% 0cm 51° 23°C 1.4mm 0.75kPa 16667m 1m/s 0.5m/s
16:00
2% 17°C 0mm 74% 0cm 43° 22°C 2.1mm 0.7kPa 10324m 0.91m/s 1.1m/s
17:00
2% 17°C 0.01mm 79% 0cm 35° 21°C 2.6mm 0.53kPa 22406m 1.7m/s 2.7m/s
18:00
3% 17°C 0mm 86% 0cm 27° 19°C 2.8mm 0.32kPa 24135m 3.1m/s 3.1m/s
19:00
3% 16°C 0mm 90% 0cm 18° 17°C 2.9mm 0.19kPa 24134m 4.1m/s 3.1m/s
20:00
5% 13°C 0mm 88% 0cm 9.7° 14°C 1.9mm 0.19kPa 24134m 3.7m/s 2.7m/s
21:00
8% 9.6°C 0mm 86% 0cm 2.3° 12°C 0.96mm 0.19kPa 24135m 3.4m/s 2.3m/s
22:00
10% 6.6°C 0mm 84% 0cm -4.5° 9.1°C 0mm 0.19kPa 24135m 3m/s 1.9m/s
23:00
8% 6.7°C 0mm 83% 0cm -9.7° 9.4°C 0mm 0.2kPa 24135m 3m/s 1.9m/s
Wed, May 27 Sunrise 04:48 Sunset 21:23
24:00
7% 6.7°C 0mm 82% 0cm -13° 9.6°C 0mm 0.21kPa 24135m 3m/s 2m/s
01:00
5% 6.8°C 0mm 81% 0cm -14° 9.9°C 0mm 0.23kPa 24135m 3m/s 2.1m/s
02:00
6% 7.3°C 0mm 79% 0cm -14° 11°C 0mm 0.28kPa 24135m 3.5m/s 2.4m/s
03:00
7% 7.8°C 0mm 76% 0cm -11° 12°C 0mm 0.33kPa 24135m 4.1m/s 2.8m/s
04:00
8% 8.3°C 0mm 74% 0cm -5.6° 13°C 0mm 0.39kPa 24135m 4.6m/s 3.1m/s
05:00
8% 9°C 0mm 72% 0cm 14°C 0mm 0.45kPa 24135m 4.9m/s 3.6m/s
06:00
8% 9.6°C 0mm 70% 0cm 8.2° 15°C 0mm 0.51kPa 24135m 5.1m/s 4.1m/s
07:00
8% 10°C 0mm 68% 0cm 16° 16°C 0mm 0.58kPa 24135m 5.3m/s 4.5m/s
08:00
10% 10°C 0mm 69% 0cm 25° 16°C 0mm 0.57kPa 24135m 5.2m/s 4.5m/s
09:00
13% 11°C 0mm 69% 0cm 34° 16°C 0mm 0.57kPa 24135m 5.1m/s 4.5m/s
10:00
15% 11°C 0mm 70% 0cm 42° 17°C 0mm 0.57kPa 24135m 4.9m/s 4.5m/s
11:00
15% 11°C 0mm 72% 0cm 49° 16°C 0mm 0.51kPa 24135m 5m/s 4.4m/s
12:00
15% 11°C 0mm 73% 0cm 55° 15°C 0mm 0.46kPa 24135m 5.1m/s 4.3m/s
13:00
15% 10°C 0mm 75% 0cm 57° 15°C 0mm 0.41kPa 24135m 5.2m/s 4.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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