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Rule Fog Hunter

Balmaha - Fog Hunter - Trossachs & Loch Lomond

Balmaha, Scotland, United Kingdom

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread0.4°C
Visibility8421 (Moderate)
Relative Humidity97%
Wind Speed3.2m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London
fog weather icon
Next opportunity
Moderate Fog
Balmaha
Sat, Jun 13 · 20:00–21:00 · 1h window
Low confidence
34%
🌫️Fog Probability79.7%
Dewpoint Spread: 0.2°C
Visibility: 10363 (Clear)
Relative Humidity: 99%
Wind Speed: 1.3m/s (calm conditions)
fog weather icon
Dense Fog at Sunset
Balmaha
Sat, Jun 13 · 21:00–23:00
🌫️Fog Probability:91.1-100%
High
fog weather icon
Dense Fog at Dusk
Balmaha
Sat, Jun 13 · 23:00–24:00
🌫️Fog Probability:100%
Medium
fog weather icon
Dense Fog
Balmaha
Sun, Jun 14 · 24:00–02:00
🌫️Fog Probability:98.5-100%
High

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
0matching hours in the next 85 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Sun, Jun 7
06:0048%
07:0042%
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, Jun 8
24:000%
01:000%
02:0033%
03:000%
04:000%
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%
Tue, Jun 9
24:000%
01:000%
02:0030%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
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16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Wed, Jun 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%
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17:000%
18:000%
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, Jun 7 Sunrise 04:34 Sunset 22:00
21:00
0% 11°C 1.4mm 97% 0cm 5.8° 11°C 3.1mm 0.04kPa 8421m 9.3m/s 3.2m/s
22:00
0% 9.9°C 1.3mm 97% 0cm -0.36° 10°C 4.4mm 0.04kPa 9891m 9.9m/s 3.6m/s
23:00 ☾
0% 10°C 0.03mm 97% 0cm -5.9° 10°C 5mm 0.04kPa 24135m 11m/s 4.4m/s
Mon, Jun 8 Sunrise 04:34 Sunset 22:00
24:00 ☾
0% 9.6°C 0.01mm 95% 0cm -9.4° 10°C 5.1mm 0.06kPa 24134m 10m/s 4.9m/s
01:00 ☾
0% 8.7°C 0mm 94% 0cm -11° 9.6°C 5.3mm 0.07kPa 24134m 9.9m/s 4.7m/s
02:00 ☾
0% 8°C 0mm 95% 0cm -11° 8.7°C 0mm 0.06kPa 24134m 10m/s 4.7m/s
03:00 ☾
0% 7.5°C 0.01mm 95% 0cm -8.1° 8.3°C 0mm 0.06kPa 24134m 8.8m/s 4.2m/s
04:00 ☾
0% 6.9°C 0mm 93% 0cm -3.8° 7.9°C 0mm 0.07kPa 24134m 7.8m/s 3.1m/s
05:00
0% 6.1°C 0mm 95% 0cm 2.1° 6.9°C 0mm 0.05kPa 24134m 4m/s 2.1m/s
06:00
0% 6.4°C 0mm 95% 0cm 8.9° 7.2°C 0mm 0.05kPa 24135m 5.1m/s 1.9m/s
07:00
0% 7.1°C 0mm 90% 0cm 17° 8.6°C 0mm 0.11kPa 24134m 6.3m/s 2.5m/s
08:00
30% 6.8°C 0mm 83% 0cm 25° 9.5°C 0.06mm 0.2kPa 24135m 6m/s 3.5m/s
09:00
60% 6°C 0mm 74% 0cm 33° 10°C 0.13mm 0.33kPa 24134m 6.6m/s 4.6m/s
10:00
90% 5.1°C 0mm 65% 0cm 41° 11°C 0.19mm 0.48kPa 24135m 6.7m/s 5.1m/s
11:00
87% 5°C 0mm 62% 0cm 48° 12°C 0.31mm 0.53kPa 15886m 6.6m/s 5.3m/s
12:00
84% 5.2°C 0mm 62% 0cm 54° 12°C 0.5mm 0.55kPa 21709m 6.6m/s 5.5m/s
13:00
81% 4.9°C 0mm 59% 0cm 57° 13°C 0.63mm 0.6kPa 24135m 6.8m/s 5.7m/s
14:00
67% 4.3°C 0mm 55% 0cm 56° 13°C 0.06mm 0.69kPa 24135m 6.9m/s 5.6m/s
15:00
52% 4.3°C 0mm 54% 0cm 52° 13°C 0.13mm 0.7kPa 24135m 7.1m/s 5.7m/s
16:00
38% 5.8°C 0mm 62% 0cm 45° 13°C 0.31mm 0.55kPa 21440m 7.2m/s 5.2m/s
17:00
34% 5.4°C 0mm 60% 0cm 38° 13°C 0.44mm 0.61kPa 24135m 6.9m/s 5.2m/s
18:00
29% 6.5°C 0mm 68% 0cm 30° 12°C 0.56mm 0.46kPa 24135m 6.3m/s 4.7m/s
19:00
25% 7.1°C 0mm 74% 0cm 21° 12°C 0.75mm 0.36kPa 21616m 6.5m/s 4.4m/s
20:00
17% 7.3°C 0.37mm 83% 0cm 13° 10°C 0.31mm 0.21kPa 19990m 7.8m/s 4m/s
21:00
8% 7.2°C 0.49mm 93% 0cm 5.9° 8.4°C 1.1mm 0.08kPa 14566m 8.1m/s 1.9m/s
22:00
0% 7.5°C 0.7mm 95% 0cm -0.21° 8.2°C 1.9mm 0.05kPa 11206m 6m/s 1.4m/s
23:00 ☾
0% 7.6°C 0.52mm 97% 0cm -5.8° 8.1°C 2.5mm 0.03kPa 12083m 5.8m/s 1.6m/s
Tue, Jun 9 Sunrise 04:34 Sunset 22:01
24:00 ☾
0% 7.4°C 0.4mm 96% 0cm -9.3° 8°C 3.2mm 0.04kPa 13829m 6.5m/s 1.8m/s
01:00 ☾
0% 7.1°C 0.64mm 96% 0cm -11° 7.7°C 3.8mm 0.04kPa 11345m 6.5m/s 2m/s
02:00 ☾
2% 6.9°C 0.22mm 96% 0cm -10° 7.5°C 0.69mm 0.04kPa 22898m 6.7m/s 2.2m/s
03:00 ☾
4% 6.4°C 0mm 94% 0cm -8° 7.2°C 0.94mm 0.06kPa 24134m 6.4m/s 2.1m/s
04:00 ☾
6% 4.6°C 0mm 96% 0cm -3.7° 5.2°C 1mm 0.04kPa 24135m 2m/s 1.8m/s
05:00
5% 4.2°C 0mm 96% 0cm 2.2° 4.7°C 1mm 0.03kPa 24134m 1.4m/s 1.5m/s
06:00
3% 5.1°C 0mm 97% 0cm 8.9° 5.6°C 1mm 0.03kPa 24135m 2m/s 1.4m/s
07:00
2% 6.2°C 0mm 94% 0cm 17° 7.2°C 1mm 0.06kPa 24134m 2.6m/s 1.4m/s
08:00
4% 6.7°C 0mm 89% 0cm 25° 8.4°C 0.13mm 0.12kPa 19722m 3.2m/s 2m/s
09:00
5% 6.9°C 0mm 84% 0cm 33° 9.4°C 0.44mm 0.18kPa 18556m 3.4m/s 2.4m/s
10:00
7% 7.2°C 0mm 82% 0cm 41° 10°C 0.88mm 0.22kPa 13600m 4m/s 3.1m/s
11:00
5% 7.2°C 0.05mm 82% 0cm 48° 10°C 1.3mm 0.22kPa 21410m 4.9m/s 4m/s
12:00
2% 6.7°C 0mm 82% 0cm 54° 9.5°C 1.4mm 0.21kPa 24135m 5.4m/s 3.8m/s
13:00
0% 6.7°C 0mm 72% 0cm 57° 12°C 1.6mm 0.39kPa 17748m 5.6m/s 4.2m/s
14:00
4% 6°C 0mm 64% 0cm 56° 13°C 0.19mm 0.54kPa 20944m 6.6m/s 5m/s
15:00
7% 4.9°C 0mm 56% 0cm 52° 13°C 0.25mm 0.68kPa 24135m 7.1m/s 4.9m/s
16:00
11% 3.6°C 0mm 48% 0cm 46° 14°C 0.25mm 0.84kPa 24135m 7.3m/s 5.5m/s
17:00
9% 3.2°C 0mm 50% 0cm 38° 14°C 0.25mm 0.78kPa 24135m 7.1m/s 6.2m/s
18:00
8% 3.9°C 0mm 54% 0cm 30° 13°C 0.25mm 0.69kPa 24135m 6.8m/s 5.3m/s
19:00
6% 5.3°C 0mm 62% 0cm 21° 12°C 0.25mm 0.55kPa 24134m 6.2m/s 4.5m/s
20:00
14% 5.6°C 0mm 69% 0cm 13° 11°C 0mm 0.41kPa 24135m 6.4m/s 4.1m/s
21:00
23% 5.5°C 0mm 77% 0cm 6° 9.2°C 0mm 0.26kPa 24134m 5.3m/s 2.7m/s
22:00
31% 5°C 0.01mm 84% 0cm -0.04° 7.6°C 0mm 0.17kPa 24135m 1.7m/s 1.9m/s
23:00 ☾
26% 5.1°C 0mm 86% 0cm -5.7° 7.2°C 0mm 0.14kPa 24135m 1.5m/s 1.6m/s
Wed, Jun 10 Sunrise 04:33 Sunset 22:02
24:00 ☾
20% 5.4°C 0mm 82% 0cm -9.2° 8.3°C 0mm 0.2kPa 24135m 3.5m/s 1.8m/s
01:00 ☾
15% 5.5°C 0mm 82% 0cm -11° 8.4°C 0.06mm 0.2kPa 24135m 3.2m/s 1.8m/s
02:00 ☾
15% 6°C 0mm 85% 0cm -10° 8.3°C 0.19mm 0.16kPa 22387m 3.3m/s 1.8m/s
03:00 ☾
15% 6.5°C 0mm 89% 0cm -7.9° 8.3°C 0.31mm 0.12kPa 20639m 3.5m/s 1.8m/s
04:00 ☾
15% 7°C 0mm 92% 0cm -3.7° 8.2°C 0.44mm 0.09kPa 18891m 3.6m/s 1.8m/s
05:00
14% 7.4°C 0.02mm 90% 0cm 2.2° 9°C 0.9mm 0.12kPa 16746m 4.1m/s 2.4m/s
06:00
13% 7.8°C 0.03mm 88% 0cm 8.9° 9.7°C 1.4mm 0.15kPa 14601m 4.7m/s 3m/s
07:00
12% 8.1°C 0.05mm 86% 0cm 17° 10°C 1.8mm 0.18kPa 12457m 5.2m/s 3.6m/s
08:00
9% 7.9°C 0.07mm 80% 0cm 25° 11°C 1.6mm 0.26kPa 15123m 5.8m/s 3.9m/s
09:00
7% 7.6°C 0.08mm 75% 0cm 33° 12°C 1.4mm 0.35kPa 17789m 6.4m/s 4.2m/s
10:00
4% 7.2°C 0.1mm 70% 0cm 41° 13°C 1.3mm 0.44kPa 20455m 7.1m/s 4.4m/s
11:00
3% 6.7°C 0.07mm 68% 0cm 48° 13°C 1.3mm 0.47kPa 21682m 7m/s 4.6m/s
12:00
3% 6.1°C 0.03mm 66% 0cm 54° 12°C 1.4mm 0.5kPa 22908m 7m/s 4.8m/s
13:00
2% 5.5°C 0mm 64% 0cm 57° 12°C 1.5mm 0.52kPa 24135m 7m/s 4.9m/s
14:00
4% 5.6°C 0mm 72% 0cm 56° 10°C 1mm 0.35kPa 24135m 5.5m/s 4.1m/s
15:00
7% 5.5°C 0mm 81% 0cm 52° 8.6°C 0.5mm 0.22kPa 24135m 4.1m/s 3.3m/s
16:00
9% 5.1°C 0mm 89% 0cm 46° 6.8°C 0mm 0.11kPa 24135m 2.6m/s 2.4m/s
17:00
11% 4.9°C 0mm 91% 0cm 38° 6.2°C 0mm 0.08kPa 24135m 2.4m/s 2.3m/s
18:00
13% 4.6°C 0mm 93% 0cm 30° 5.6°C 0mm 0.06kPa 24135m 2.1m/s 2.2m/s
19:00
15% 4.3°C 0mm 95% 0cm 21° 5°C 0mm 0.04kPa 24135m 1.9m/s 2m/s
20:00
26% 4.3°C 0mm 96% 0cm 13° 4.9°C 0mm 0.03kPa 24135m 1.8m/s 2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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