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Rule Fog Hunter

Loch Lubnaig - Fog Hunter - Trossachs & Loch Lomond

Callander, Scotland, 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
Fog Probability
0%
Dewpoint Spread7.9°C
Visibility24135 (Clear)
Relative Humidity61%
Wind Speed2.3m/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 identifies when fog and mist conditions create atmospheric photography opportunities across the Trossachs lochs and glens. We track temperature, humidity, wind, and overnight cooling to predict when dawn mist will form over forest-fringed lochs and settle into wooded valleys.

The Trossachs—"the Highlands in miniature"—sits where Lowland Scotland meets the Highlands, creating perfect conditions for mist formation. Cool Highland air draining down valleys meets warmer air over the lochs, while dense oak and birch forests trap moisture overnight. The result is frequent dawn mist that transforms intimate lochs and wooded glens into scenes of ethereal beauty.

What makes the Trossachs special for fog photography:

  • Forest-fringed lochs - Loch Ard and Loch Chon with native woodland creating layered mist scenes
  • Valley fog formation - Glen Finglas and other glens trap overnight mist between mountains
  • Intimate scale - Smaller lochs allow compositions that capture both mist and reflections
  • Seasonal reliability - Autumn (September-November) brings most reliable mist conditions with calm nights

Loch Ard near Aberfoyle offers the Trossachs' most reliable dawn mist—native forest comes right to the water's edge, creating layered compositions as mist rises through trees. The forest pier at dawn with mist swirling around ancient oaks is magical. Loch Chon, deeper into the forest, sees even more atmospheric conditions due to its remote, sheltered position. The Trossachs Pier on Loch Katrine with the historic steamship and Ben Venue emerging from mist creates classic Scottish landscape scenes. Timing is critical—arrive in darkness, position yourself 30 minutes before sunrise, and capture the 1-2 hour window as mist lifts and breaks. Conditions change rapidly once sun hits the water.

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72-hour requirements breakdown

What passed or failed, hour by hour
4matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Tue, Jul 7
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0055%
23:0071%
Wed, Jul 8
24:0073%
01:0073%
02:0071%
03:0080%
04:0089%
05:00100%
06:0099%
07:0069%
08:0059%
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 04:41 Sunset 22:02
15:00
63% 14°C 0mm 61% 0cm 52° 22°C 0mm 1kPa 24135m 4m/s 2.3m/s
16:00
95% 14°C 0mm 59% 0cm 46° 23°C 0mm 1.1kPa 24135m 4.1m/s 2.4m/s
17:00
93% 14°C 0mm 60% 0cm 38° 23°C 0mm 1.1kPa 24135m 3.7m/s 2.3m/s
18:00
90% 15°C 0mm 62% 0cm 30° 22°C 0mm 1kPa 24135m 3.5m/s 2.6m/s
19:00
88% 15°C 0mm 67% 0cm 22° 21°C 0mm 0.84kPa 24134m 3.1m/s 2m/s
20:00
80% 16°C 0mm 78% 0cm 13° 20°C 0mm 0.52kPa 24134m 2.2m/s 1.5m/s
21:00
71% 15°C 0mm 85% 0cm 6.1° 17°C 0mm 0.3kPa 24134m 1.3m/s 1.5m/s
22:00
63% 14°C 0mm 91% 0cm 0.002° 15°C 0mm 0.16kPa 24135m 1.4m/s 1.5m/s
23:00 ☾
62% 13°C 0mm 92% 0cm -5.8° 14°C 0mm 0.13kPa 24134m 1.4m/s 1.5m/s
Thu, Jul 9 Sunrise 04:41 Sunset 22:02
24:00 ☾
61% 12°C 0mm 93% 0cm -9.4° 13°C 0mm 0.11kPa 24134m 1.6m/s 1.8m/s
01:00 ☾
60% 12°C 0mm 93% 0cm -11° 13°C 0mm 0.1kPa 24135m 1.8m/s 2m/s
02:00 ☾
66% 11°C 0mm 93% 0cm -11° 12°C 0mm 0.09kPa 24135m 1.7m/s 1.9m/s
03:00 ☾
72% 11°C 0mm 94% 0cm -8.7° 12°C 0mm 0.09kPa 24135m 1.8m/s 2m/s
04:00 ☾
78% 11°C 0mm 94% 0cm -4.5° 12°C 0mm 0.08kPa 24134m 1.8m/s 1.9m/s
05:00
81% 11°C 0mm 94% 0cm 1.4° 11°C 0mm 0.08kPa 24134m 1.7m/s 1.9m/s
06:00
84% 11°C 0mm 93% 0cm 7.9° 12°C 0mm 0.1kPa 24134m 1.5m/s 1.7m/s
07:00
87% 13°C 0mm 88% 0cm 16° 14°C 0mm 0.19kPa 24135m 1.6m/s 1.3m/s
08:00
82% 13°C 0mm 82% 0cm 24° 16°C 0mm 0.33kPa 24135m 1.9m/s 1.5m/s
09:00
76% 14°C 0mm 76% 0cm 32° 18°C 0mm 0.47kPa 24134m 2.2m/s 1.6m/s
10:00
71% 14°C 0mm 72% 0cm 40° 19°C 0mm 0.63kPa 24135m 2.7m/s 1.7m/s
11:00
73% 14°C 0mm 68% 0cm 47° 20°C 0mm 0.77kPa 24134m 3.4m/s 2m/s
12:00
75% 14°C 0mm 64% 0cm 53° 22°C 0mm 0.92kPa 24135m 3.5m/s 2.2m/s
13:00
77% 15°C 0mm 61% 0cm 56° 22°C 0mm 1kPa 24135m 3.8m/s 2.2m/s
14:00
61% 15°C 0mm 61% 0cm 55° 23°C 0mm 1.1kPa 24134m 3.7m/s 2.6m/s
15:00
45% 15°C 0mm 62% 0cm 52° 23°C 0mm 1.1kPa 24135m 3.8m/s 2.8m/s
16:00
29% 15°C 0mm 62% 0cm 45° 23°C 0mm 1.1kPa 24135m 3.3m/s 2.3m/s
17:00
22% 15°C 0mm 63% 0cm 38° 22°C 0mm 0.99kPa 24134m 3.3m/s 2.4m/s
18:00
15% 15°C 0mm 66% 0cm 30° 22°C 0mm 0.89kPa 24135m 3.3m/s 2.2m/s
19:00
8% 16°C 0mm 72% 0cm 21° 21°C 0mm 0.7kPa 24135m 3.1m/s 2m/s
20:00
8% 16°C 0mm 80% 0cm 13° 19°C 0mm 0.45kPa 24134m 2.6m/s 2m/s
21:00
8% 15°C 0mm 85% 0cm 6° 17°C 0mm 0.29kPa 24135m 1.7m/s 1.9m/s
22:00
8% 14°C 0mm 90% 0cm -0.17° 15°C 0mm 0.18kPa 24135m 1.6m/s 1.8m/s
23:00 ☾
9% 13°C 0mm 93% 0cm -5.9° 14°C 0mm 0.12kPa 24135m 1.8m/s 1.9m/s
Fri, Jul 10 Sunrise 04:42 Sunset 22:01
24:00 ☾
9% 13°C 0mm 94% 0cm -9.6° 14°C 0mm 0.09kPa 24135m 1.8m/s 1.8m/s
01:00 ☾
10% 12°C 0mm 94% 0cm -11° 13°C 0mm 0.09kPa 24135m 1.7m/s 1.9m/s
02:00 ☾
24% 12°C 0mm 94% 0cm -11° 13°C 0mm 0.08kPa 24135m 1.8m/s 2m/s
03:00 ☾
37% 12°C 0mm 94% 0cm -8.8° 13°C 0mm 0.09kPa 24135m 1.5m/s 1.6m/s
04:00 ☾
51% 12°C 0mm 94% 0cm -4.7° 13°C 0mm 0.09kPa 24134m 1.5m/s 1.6m/s
05:00
37% 12°C 0mm 94% 0cm 1.3° 12°C 0mm 0.09kPa 24135m 1.3m/s 1.4m/s
06:00
23% 12°C 0mm 92% 0cm 7.8° 14°C 0mm 0.13kPa 24134m 1.5m/s 1.7m/s
07:00
9% 13°C 0mm 87% 0cm 15° 15°C 0mm 0.22kPa 24135m 1.5m/s 1.1m/s
08:00
6% 14°C 0mm 81% 0cm 24° 17°C 0mm 0.37kPa 24134m 0.63m/s 0.38m/s
09:00
4% 14°C 0mm 76% 0cm 32° 18°C 0mm 0.5kPa 24134m 1.4m/s 1.2m/s
10:00
1% 15°C 0mm 72% 0cm 40° 20°C 0mm 0.66kPa 24135m 1.9m/s 1.3m/s
11:00
1% 15°C 0mm 67% 0cm 47° 21°C 0mm 0.81kPa 24134m 2.1m/s 1.4m/s
12:00
0% 15°C 0mm 64% 0cm 53° 22°C 0mm 0.97kPa 24134m 2.5m/s 1.5m/s
13:00
0% 15°C 0mm 61% 0cm 56° 23°C 0mm 1.1kPa 24134m 2.3m/s 1.4m/s
14:00
3% 15°C 0mm 59% 0cm 55° 23°C 0mm 1.1kPa 24135m 1.9m/s 1m/s
15:00
6% 15°C 0mm 58% 0cm 51° 23°C 0mm 1.2kPa 24134m 2.4m/s 1.6m/s
16:00
9% 15°C 0mm 58% 0cm 45° 24°C 0mm 1.2kPa 24134m 2.5m/s 1.8m/s
17:00
6% 15°C 0mm 60% 0cm 38° 23°C 0mm 1.2kPa 24135m 2.4m/s 1.8m/s
18:00
4% 16°C 0mm 65% 0cm 30° 23°C 0mm 0.97kPa 24135m 2m/s 1.9m/s
19:00
1% 17°C 0mm 75% 0cm 21° 22°C 0mm 0.66kPa 24135m 2.1m/s 1.5m/s
20:00
2% 16°C 0.003mm 80% 0cm 13° 19°C 0.04mm 0.43kPa 24135m 4.1m/s 2.2m/s
21:00
3% 14°C 0.007mm 86% 0cm 5.9° 16°C 0.08mm 0.25kPa 24135m 6.1m/s 2.8m/s
22:00
4% 12°C 0.01mm 92% 0cm -0.34° 13°C 0.13mm 0.12kPa 24135m 8.1m/s 3.4m/s
23:00 ☾
3% 11°C 0.02mm 90% 0cm -6° 13°C 0.15mm 0.14kPa 24135m 8.1m/s 3.5m/s
Sat, Jul 11 Sunrise 04:43 Sunset 22:00
24:00 ☾
2% 11°C 0.02mm 89% 0cm -9.7° 12°C 0.17mm 0.15kPa 24135m 8m/s 3.5m/s
01:00 ☾
1% 10°C 0.03mm 88% 0cm -11° 12°C 0.19mm 0.17kPa 24135m 7.9m/s 3.6m/s
02:00 ☾
1% 10°C 0.02mm 86% 0cm -11° 12°C 0.13mm 0.2kPa 24135m 7.4m/s 3.7m/s
03:00 ☾
0% 10°C 0.01mm 84% 0cm -8.9° 13°C 0.06mm 0.23kPa 24135m 6.9m/s 3.8m/s
04:00 ☾
0% 9.9°C 0mm 82% 0cm -4.8° 13°C 0mm 0.27kPa 24135m 6.3m/s 3.9m/s
05:00
0% 10°C 0mm 80% 0cm 1.1° 13°C 0.02mm 0.31kPa 24135m 5.9m/s 3.8m/s
06:00
0% 10°C 0mm 78% 0cm 7.7° 14°C 0.04mm 0.35kPa 24135m 5.5m/s 3.8m/s
07:00
0% 10°C 0mm 76% 0cm 15° 14°C 0.06mm 0.39kPa 24135m 5.1m/s 3.7m/s
08:00
0% 10°C 0mm 74% 0cm 23° 15°C 0.04mm 0.43kPa 24135m 4.9m/s 3.7m/s
09:00
1% 10°C 0mm 73% 0cm 32° 15°C 0.02mm 0.48kPa 24135m 4.7m/s 3.6m/s
10:00
1% 11°C 0mm 71% 0cm 40° 16°C 0mm 0.52kPa 24135m 4.5m/s 3.6m/s
11:00
1% 10°C 0mm 71% 0cm 47° 16°C 0mm 0.52kPa 24135m 4.8m/s 3.6m/s
12:00
0% 9.9°C 0mm 71% 0cm 53° 15°C 0mm 0.51kPa 24135m 5.1m/s 3.6m/s
13:00
0% 9.6°C 0mm 70% 0cm 56° 15°C 0mm 0.5kPa 24135m 5.3m/s 3.6m/s
14:00
0% 9.2°C 0mm 72% 0cm 55° 14°C 0mm 0.44kPa 24135m 5.5m/s 3.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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