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Rule Fog Hunter

Misty Mornings at Lake Bled

Slovenia

Thick, moody fog for atmospheric forest and landscape shots

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Ljubljana
Next opportunity
Dense Fog (lingering)
Today · 18:00–19:00 · 1h window
High confidence
78%
Dense Fog (lingering)
Today · 20:00–21:00
High
Dense Fog (lingering)
Today · 23:00–24:00
High
Dense Fog (lingering) at Sunrise
Tomorrow · 08:00–09:00
High
Dense Fog (lingering)
Tomorrow · 09:00–12:00
Medium
Dense Fog (lingering, sunbreaks) at Sunset
Tomorrow · 16:00–17:00
Medium
+22 more windows in the next 14 days

What this forecast looks for

Plain-language explanation from the rule

Fog Hunter detects atmospheric conditions ideal for moody photography:

  • Fog Probability: Based on humidity, temperature, and dewpoint spread
  • Visibility: Looking for that ethereal, limited visibility effect
  • Wind Speed: Calm conditions help fog form and persist
  • Dewpoint Spread: When air temperature approaches dewpoint, fog forms

Perfect for forest scenes, mountain valleys, and atmospheric landscapes.

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72-hour requirements breakdown

What passed or failed, hour by hour
13matching hours in the next 72 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Ljubljana
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Fri, Jan 9
07:000%1.8°C21900m0.1m/s
08:000%3.2°C42460m0.7m/s
09:000%4.5°C56480m0.91m/s
10:000%3.7°C42600m1.3m/s
11:000%5.2°C60920m0.51m/s
12:000%4.4°C55420m0.41m/s
13:000%3.9°C50320m0.22m/s
14:000%3.7°C49360m0.22m/s
15:000%1.4°C4140m0.14m/s
16:0046%0.7°C4260m0.22m/s
17:0094%0.4°C3160m0.22m/s
18:0097%0.1°C2240m0.36m/s
19:0094%0.4°C3620m0.57m/s
20:00100%0.1°C1000m0.4m/s
21:0081%0.7°C5460m0.32m/s
22:0092%0.7°C4900m0.58m/s
23:0094%0.4°C2540m0.36m/s
Sat, Jan 10
24:0047%0.4°C2420m0.64m/s
01:000%0.3°C220m0.45m/s
02:000%0.1°C560m0.4m/s
03:000%0.1°C120m0.22m/s
04:000%0.1°C180m0.28m/s
05:000%0.1°C440m0.61m/s
06:0060%0°C520m0.5m/s
07:0060%0°C460m0.1m/s
08:00100%0°C360m0.1m/s
09:00100%0.1°C440m0.22m/s
10:0093%1°C700m0.14m/s
11:0089%1.6°C700m0.22m/s
12:0083%1.1°C1020m0.14m/s
13:000%1.3°C6100m0.32m/s
14:0077%0.9°C3340m0.71m/s
15:0092%0.6°C3260m0.61m/s
16:0094%0.4°C2640m0.3m/s
17:00100%0°C180m0.22m/s
18:00100%0°C900m0.45m/s
19:0076%0.8°C9120m0.51m/s
20:0097%0.1°C2120m0.54m/s
21:00100%0°C1080m0.73m/s
22:00100%0.1°C1040m0.94m/s
23:000%1.4°C18800m0.99m/s
Sun, Jan 11
24:000%1.4°C19320m1m/s
01:000%1.2°C18320m0.98m/s
02:000%1.9°C29945m1.6m/s
03:000%2.1°C31690m1.8m/s
04:000%2.6°C37475m2m/s
05:000%3°C43420m1.8m/s
06:000%3.5°C49540m1.6m/s
07:000%3.3°C49960m1.3m/s
08:000%2.5°C41660m1m/s
09:000%2.7°C41240m0.89m/s
10:000%3.9°C48840m0.92m/s
11:000%3.8°C45340m0.36m/s
12:000%5.7°C64320m0.67m/s
13:000%10°C76320m1.4m/s
14:000%10°C75800m1.3m/s
15:000%8.8°C74520m0.32m/s
16:000%8.2°C75060m0.63m/s
17:000%6.7°C70920m0.86m/s
18:000%6.2°C68680m1.7m/s
19:000%7.2°C70380m2.4m/s
20:000%4.4°C53220m2.9m/s
21:000%4.1°C49960m2.7m/s
22:000%3.7°C45640m2.9m/s
23:000%3.4°C42160m3m/s
Mon, Jan 12
24:000%3.4°C42020m3.2m/s
01:000%3.2°C39600m2.8m/s
02:000%3.3°C38200m2.5m/s
03:000%3.3°C39720m2.5m/s
04:000%3.3°C37940m2.5m/s
05:000%3°C30240m2.5m/s
06:000%2.4°C23540m2.2m/s
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/Ljubljana
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Wind Gusts
m/s
Fri, Jan 9 Sunrise 07:45 Sunset 16:35
08:00
-9.4°C 0mm 78% 0cm -6.2°C 0mm 0.08kPa 1m/s
09:00
-8.5°C 0mm 71% 0cm -4°C 0mm 0.13kPa 1.2m/s
10:00
-5.7°C 0mm 76% 0cm -2°C 0mm 0.13kPa 2.2m/s
11:00
-5.5°C 0mm 68% 0cm -0.3°C 0mm 0.19kPa 2.3m/s
12:00
-4.1°C 0mm 72% 0cm 0.3°C 0mm 0.17kPa 1.2m/s
13:00
-3.1°C 0mm 75% 0cm 0.8°C 0mm 0.16kPa 0.9m/s
14:00
-3.3°C 0mm 76% 0cm 0.4°C 0mm 0.15kPa 0.6m/s
15:00
-1.5°C 0mm 90% 0.07cm -0.1°C 0.2mm 0.06kPa 0.4m/s
16:00
-1°C 0mm 95% 0cm -0.3°C 0.2mm 0.03kPa 0.7m/s
17:00
-2.4°C 0mm 97% 0cm -2°C 0mm 0.02kPa 0.4m/s
18:00
-3.4°C 0mm 99% 0cm -3.3°C 0mm 0kPa 0.4m/s
19:00
-4.5°C 0mm 97% 0cm -4.1°C 0mm 0.01kPa 0.6m/s
20:00
-3.9°C 0mm 99% 0cm -3.8°C 0mm 0kPa 0.7m/s
21:00
-3.1°C 0mm 95% 0cm -2.4°C 0mm 0.03kPa 0.6m/s
22:00
-2.7°C 0mm 95% 0cm -2°C 0mm 0.03kPa 0.6m/s
23:00
-2.5°C 0mm 97% 0cm -2.1°C 0.1mm 0.02kPa 1.1m/s
Sat, Jan 10 Sunrise 07:45 Sunset 16:35
24:00
-2.1°C 0mm 97% 0cm -1.7°C 0.4mm 0.02kPa 1.3m/s
01:00
-1.2°C 0mm 98% 0.7cm -0.9°C 1.6mm 0.01kPa 1.4m/s
02:00
-0.4°C 0mm 99% 0.91cm -0.3°C 3.4mm 0.01kPa 1m/s
03:00
-0.1°C 0.3mm 99% 1.2cm 0°C 3.1mm 0.01kPa 0.8m/s
04:00
-0.5°C 0mm 99% 2.3cm -0.4°C 3.4mm 0.01kPa 0.4m/s
05:00
-0.4°C 0mm 99% 1.2cm -0.3°C 1.7mm 0.01kPa 1m/s
06:00
-0.8°C 0mm 100% 0.35cm -0.8°C 0.7mm 0kPa 1.3m/s
07:00
-1.2°C 0mm 100% 0.14cm -1.2°C 0.2mm 0kPa 0.6m/s
08:00
-1.5°C 0mm 100% 0cm -1.5°C 0mm 0kPa 0.5m/s
09:00
-1.7°C 0mm 99% 0cm -1.6°C 0mm 0.01kPa 0.3m/s
10:00
-2.2°C 0mm 93% 0cm -1.2°C 0mm 0.04kPa 0.6m/s
11:00
-1.9°C 0mm 89% 0cm -0.3°C 0mm 0.07kPa 0.8m/s
12:00
-0.9°C 0mm 92% 0cm 0.2°C 0mm 0.05kPa 0.5m/s
13:00
-0.9°C 0mm 91% 0cm 0.4°C 0mm 0.06kPa 0.7m/s
14:00
0°C 0mm 94% 0cm 0.9°C 0mm 0.04kPa 1.2m/s
15:00
-0.2°C 0mm 96% 0cm 0.4°C 0mm 0.03kPa 1m/s
16:00
-1.9°C 0mm 97% 0cm -1.5°C 0mm 0.02kPa 1m/s
17:00
-3.2°C 0mm 100% 0cm -3.2°C 0mm 0kPa 0.3m/s
18:00
-5°C 0mm 100% 0cm -5°C 0mm 0kPa 0.7m/s
19:00
-7°C 0mm 94% 0cm -6.2°C 0mm 0.02kPa 0.7m/s
20:00
-7.4°C 0mm 99% 0cm -7.3°C 0mm 0kPa 0.8m/s
21:00
-7.4°C 0mm 100% 0cm -7.4°C 0mm 0kPa 0.8m/s
22:00
-7.6°C 0mm 99% 0cm -7.5°C 0mm 0kPa 1.2m/s
23:00
-8.1°C 0mm 90% 0cm -6.7°C 0mm 0.04kPa 1.3m/s
Sun, Jan 11 Sunrise 07:45 Sunset 16:36
24:00
-8.5°C 0mm 90% 0cm -7.1°C 0mm 0.04kPa 1.3m/s
01:00
-8.8°C 0mm 91% 0cm -7.6°C 0mm 0.03kPa 1.3m/s
02:00
-8.5°C 0mm 86% 0cm -6.6°C 0mm 0.05kPa 2m/s
03:00
-8.3°C 0mm 85% 0cm -6.2°C 0mm 0.06kPa 2.6m/s
04:00
-8.7°C 0mm 82% 0cm -6.1°C 0mm 0.07kPa 3m/s
05:00
-8.8°C 0mm 79% 0cm -5.8°C 0mm 0.08kPa 3.4m/s
06:00
-9.5°C 0mm 76% 0cm -6°C 0mm 0.09kPa 2.7m/s
07:00
-10°C 0mm 77% 0cm -6.7°C 0mm 0.09kPa 2.6m/s
08:00
-10°C 0mm 82% 0cm -7.6°C 0mm 0.06kPa 2.3m/s
09:00
-9.6°C 0mm 81% 0cm -6.9°C 0mm 0.07kPa 2.3m/s
10:00
-8.7°C 0mm 74% 0cm -4.8°C 0mm 0.11kPa 2.5m/s
11:00
-6.2°C 0mm 75% 0cm -2.4°C 0mm 0.13kPa 3.1m/s
12:00
-7.2°C 0mm 65% 0cm -1.5°C 0mm 0.19kPa 3.7m/s
13:00
-11°C 0mm 46% 0cm -1.1°C 0mm 0.3kPa 3.7m/s
14:00
-11°C 0mm 46% 0cm -1.4°C 0mm 0.3kPa 3.9m/s
15:00
-11°C 0mm 51% 0cm -1.9°C 0mm 0.26kPa 2.7m/s
16:00
-11°C 0mm 53% 0cm -3.3°C 0mm 0.23kPa 2.1m/s
17:00
-12°C 0mm 59% 0cm -5.6°C 0mm 0.17kPa 2.6m/s
18:00
-13°C 0mm 61% 0cm -7.1°C 0mm 0.14kPa 3.5m/s
19:00
-15°C 0mm 56% 0cm -8.1°C 0mm 0.15kPa 4.4m/s
20:00
-14°C 0mm 70% 0cm -10°C 0mm 0.09kPa 6.8m/s
21:00
-15°C 0mm 72% 0cm -11°C 0mm 0.08kPa 6.6m/s
22:00
-15°C 0mm 74% 0cm -11°C 0mm 0.07kPa 5.8m/s
23:00
-15°C 0mm 76% 0cm -11°C 0mm 0.06kPa 5.8m/s
Mon, Jan 12 Sunrise 07:45 Sunset 16:38
24:00
-15°C 0mm 76% 0cm -12°C 0mm 0.06kPa 6.2m/s
01:00
-15°C 0mm 77% 0cm -12°C 0mm 0.06kPa 6.1m/s
02:00
-15°C 0mm 76% 0cm -12°C 0mm 0.06kPa 5.6m/s
03:00
-15°C 0mm 76% 0cm -12°C 0mm 0.06kPa 4.9m/s
04:00
-16°C 0mm 76% 0cm -12°C 0mm 0.06kPa 4.7m/s
05:00
-16°C 0mm 78% 0cm -13°C 0mm 0.05kPa 4.8m/s
06:00
-15°C 0mm 82% 0cm -12°C 0mm 0.04kPa 4.9m/s
07:00
-15°C 0mm 80% 0cm -12°C 0mm 0.05kPa 4.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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