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Rule Fog Hunter

Zermatt - Fog Hunter - Alps

Zermatt, Valais, Switzerland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Dewpoint Spread4.2°C
Visibility24134 (Clear)
Relative Humidity74%
Wind Speed1.4m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich
fog weather icon
Next opportunity
Moderate Fog
Zermatt
Fri, Jun 12 · 17:00–19:00 · 2h window
Low confidence
13%
🌫️Fog Probability75%
Dewpoint Spread: 0.2°C
Visibility: 201 (Fog)
Relative Humidity: 99%
Wind Speed: 4.0m/s (calm conditions)
fog weather icon
Dense Fog at Sunset
Zermatt
Fri, Jun 12 · 20:00–22:00
🌫️Fog Probability:76.7-100%
Medium
fog weather icon
Moderate Fog
Zermatt
Fri, Jun 12 · 22:00–23:00
🌫️Fog Probability:75.1%
Low

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72-hour requirements breakdown

What passed or failed, hour by hour
1matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Zurich
Fog Probability
≥ 75.0%
Fri, Jun 5
09:0033%
10:0057%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:0069%
22:0068%
23:0068%
Sat, Jun 6
24:0068%
01:0055%
02:0053%
03:0078%
04:000%
05:0060%
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%
Sun, Jun 7
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%
Mon, Jun 8
24:000%
01:000%
02:000%
03:000%
04:000%
05:0060%
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, Jun 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
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/Zurich
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
Sat, Jun 6 Sunrise 05:39 Sunset 21:16
10:00
0% -2.4°C 0mm 74% 0cm 42° 1.8°C 0mm 0.18kPa 24134m 1.4m/s 1.4m/s
11:00
0% -0.5°C 0mm 74% 0cm 52° 3.7°C 0mm 0.21kPa 22727m 2m/s 1.7m/s
12:00
0% 0.3°C 0mm 72% 0.05cm 61° 4.9°C 0.06mm 0.24kPa 14129m 2.1m/s 1.6m/s
13:00
0% 0.7°C 0mm 71% 0.14cm 66° 5.5°C 0.19mm 0.26kPa 3741m 2.4m/s 2m/s
14:00
0% 0.9°C 0mm 73% 0cm 66° 5.4°C 0.25mm 0.24kPa 6090m 2.5m/s 2.3m/s
15:00
12% 1.4°C 0mm 74% 0cm 60° 5.7°C 0.13mm 0.24kPa 21562m 3m/s 2.9m/s
16:00
24% 1.3°C 0mm 71% 0cm 51° 6.1°C 0.31mm 0.27kPa 8011m 3.1m/s 2.9m/s
17:00
36% 0.4°C 0mm 65% 0cm 42° 6.4°C 0.44mm 0.34kPa 15120m 3m/s 2.9m/s
18:00
45% -0.5°C 0mm 60% 0.05cm 31° 6.7°C 0.5mm 0.39kPa 15841m 3m/s 2.9m/s
19:00
55% -0.9°C 0mm 60% 0cm 21° 6.4°C 0.56mm 0.39kPa 23948m 2.8m/s 2.8m/s
20:00
64% 0.6°C 0mm 72% 0cm 11° 5.3°C 0.56mm 0.25kPa 24134m 2.7m/s 2.6m/s
21:00
62% -1.1°C 0mm 79% 0cm 1.9° 2.1°C 0mm 0.15kPa 24135m 2.5m/s 2.7m/s
22:00
59% -1.6°C 0mm 83% 0cm -6.7° 0.92°C 0mm 0.11kPa 24135m 2.3m/s 2.5m/s
23:00
57% -1.6°C 0mm 85% 0cm -14° 0.58°C 0mm 0.1kPa 24135m 2.3m/s 2.5m/s
Sun, Jun 7 Sunrise 05:39 Sunset 21:16
24:00
60% -1.7°C 0mm 86% 0cm -18° 0.29°C 0mm 0.08kPa 24135m 2.3m/s 2.4m/s
01:00
63% -1.8°C 0mm 87% 0cm -21° 0.02°C 0mm 0.08kPa 24134m 2.2m/s 2.3m/s
02:00
66% -2.2°C 0mm 88% 0cm -21° -0.38°C 0mm 0.07kPa 24135m 1.9m/s 1.9m/s
03:00
70% -2.6°C 0mm 87% 0cm -18° -0.71°C 0mm 0.07kPa 24135m 1.6m/s 1.6m/s
04:00
73% -2.9°C 0mm 86% 0cm -13° -0.85°C 0mm 0.08kPa 24135m 1.4m/s 1.4m/s
05:00
77% -3.3°C 0mm 84% 0cm -6.1° -1°C 0mm 0.09kPa 24134m 1.3m/s 1.3m/s
06:00
73% -3.3°C 0mm 82% 0cm 2.5° -0.71°C 0mm 0.1kPa 24135m 1.2m/s 1.2m/s
07:00
68% -1.9°C 0mm 75% 0cm 12° 2°C 0mm 0.18kPa 24134m 1m/s 1m/s
08:00
64% -2.8°C 0mm 62% 0cm 22° 3.7°C 0mm 0.3kPa 24135m 0.81m/s 0.67m/s
09:00
57% -3°C 0mm 56% 0cm 32° 5.1°C 0mm 0.39kPa 24134m 1.3m/s 1.1m/s
10:00
49% -2.6°C 0mm 52% 0cm 42° 6.4°C 0mm 0.46kPa 24135m 1.5m/s 1.2m/s
11:00
42% -1.9°C 0mm 51% 0cm 52° 7.5°C 0mm 0.51kPa 24134m 1.8m/s 1.2m/s
12:00
33% -1°C 0mm 51% 0cm 61° 8.5°C 0mm 0.54kPa 24134m 1.9m/s 1.2m/s
13:00
24% -0.2°C 0mm 52% 0cm 66° 9.1°C 0.06mm 0.55kPa 23896m 2.1m/s 1.3m/s
14:00
15% 0.7°C 0mm 56% 0cm 66° 9.1°C 0.38mm 0.51kPa 8005m 2m/s 1.1m/s
15:00
14% 1.2°C 0mm 61% 0cm 60° 8.4°C 0.56mm 0.43kPa 1671m 2m/s 1.2m/s
16:00
14% 1.6°C 0mm 64% 0cm 52° 8°C 1.3mm 0.39kPa 2317m 1.9m/s 1.4m/s
17:00
13% 2°C 0mm 67% 0cm 42° 7.8°C 2.3mm 0.35kPa 3046m 2m/s 1.7m/s
18:00
15% 2.1°C 0mm 68% 0cm 31° 7.7°C 3.1mm 0.34kPa 11173m 1.9m/s 1.7m/s
19:00
16% 2.3°C 0mm 71% 0cm 21° 7.2°C 3.8mm 0.29kPa 22617m 1.9m/s 1.8m/s
20:00
18% 3.2°C 0mm 81% 0cm 11° 6.2°C 4.2mm 0.18kPa 21877m 1.6m/s 1.6m/s
21:00
30% 2°C 0mm 90% 0cm 3.6°C 0.31mm 0.08kPa 21553m 1.5m/s 1.6m/s
22:00
41% 1°C 0mm 91% 0cm -6.6° 2.3°C 0.44mm 0.06kPa 24108m 0.8m/s 0.58m/s
23:00
53% 0.9°C 0mm 91% 0cm -13° 2.2°C 0.44mm 0.06kPa 24134m 0.6m/s 0.61m/s
Mon, Jun 8 Sunrise 05:39 Sunset 21:16
24:00
49% 0.5°C 0mm 90% 0cm -18° 1.9°C 0.44mm 0.07kPa 24135m 1.3m/s 1.3m/s
01:00
46% 0.3°C 0mm 90% 0cm -21° 1.9°C 0.44mm 0.07kPa 24134m 1.9m/s 2.1m/s
02:00
42% 0.3°C 0mm 91% 0cm -21° 1.6°C 0.44mm 0.06kPa 24134m 2.1m/s 2.3m/s
03:00
35% 0.5°C 0mm 93% 0cm -18° 1.6°C 0mm 0.05kPa 24134m 2.2m/s 2.2m/s
04:00
27% 0.3°C 0mm 94% 0cm -13° 1.1°C 0mm 0.04kPa 24134m 1.7m/s 1.8m/s
05:00
20% 0.1°C 0mm 95% 0cm -6° 0.87°C 0mm 0.03kPa 9429m 1.3m/s 1.3m/s
06:00
17% 0.3°C 0mm 93% 0cm 2.5° 1.3°C 0mm 0.05kPa 24134m 1.9m/s 2m/s
07:00
13% 2°C 0mm 89% 0cm 12° 3.6°C 0mm 0.08kPa 24134m 2.3m/s 2.3m/s
08:00
10% 1.5°C 0mm 77% 0cm 22° 5.2°C 0mm 0.2kPa 24134m 1.4m/s 1.6m/s
09:00
9% 0.4°C 0mm 66% 0cm 32° 6.4°C 0mm 0.33kPa 24134m 1.1m/s 1.2m/s
10:00
9% 0°C 0mm 60% 0cm 42° 7.3°C 0mm 0.41kPa 24135m 1.5m/s 1.4m/s
11:00
8% 0.3°C 0.01mm 57% 0cm 52° 8.3°C 0mm 0.47kPa 24135m 1.9m/s 1.5m/s
12:00
10% 0.6°C 0mm 54% 0cm 61° 9.3°C 0.06mm 0.53kPa 24134m 1.9m/s 1.6m/s
13:00
13% 0.6°C 0mm 52% 0cm 66° 9.9°C 0.13mm 0.58kPa 23385m 2.3m/s 1.9m/s
14:00
15% 0.6°C 0mm 52% 0cm 66° 9.9°C 0.19mm 0.58kPa 23686m 2.8m/s 2.3m/s
15:00
19% 1.7°C 0.36mm 65% 0cm 60° 7.9°C 0.46mm 0.37kPa 17769m 2.5m/s 2.3m/s
16:00
23% 2.3°C 0.71mm 78% 0cm 52° 5.9°C 0.73mm 0.21kPa 11853m 2.1m/s 2.2m/s
17:00
27% 2.5°C 1.1mm 90% 0cm 42° 4°C 1mm 0.08kPa 5936m 1.8m/s 2.1m/s
18:00
27% 1.9°C 0.71mm 90% 0cm 31° 3.3°C 1.5mm 0.07kPa 12002m 1.8m/s 2.1m/s
19:00
26% 1.3°C 0.36mm 91% 0cm 21° 2.6°C 2mm 0.07kPa 18069m 1.9m/s 2m/s
20:00
26% 0.7°C 0mm 91% 0cm 11° 2°C 2.4mm 0.06kPa 24135m 1.9m/s 2m/s
21:00
26% 0.7°C 0.007mm 89% 0cm 2.3°C 1.6mm 0.08kPa 24135m 1.9m/s 2m/s
22:00
26% 0.6°C 0.01mm 86% 0cm -6.5° 2.7°C 0.81mm 0.1kPa 24135m 1.9m/s 2m/s
23:00
26% 0.6°C 0.02mm 84% 0cm -13° 3°C 0mm 0.12kPa 24135m 1.8m/s 2m/s
Tue, Jun 9 Sunrise 05:38 Sunset 21:17
24:00
24% 1.3°C 0.02mm 82% 0cm -18° 4.2°C 0.04mm 0.15kPa 24135m 2.1m/s 2.1m/s
01:00
22% 2.1°C 0.02mm 79% 0cm -21° 5.4°C 0.08mm 0.19kPa 24135m 2.3m/s 2.2m/s
02:00
20% 2.9°C 0.02mm 77% 0cm -21° 6.6°C 0.13mm 0.22kPa 24135m 2.5m/s 2.4m/s
03:00
18% 3.1°C 0.01mm 74% 0cm -18° 7.4°C 0.38mm 0.26kPa 23248m 2.9m/s 2.7m/s
04:00
16% 3.4°C 0.007mm 72% 0cm -13° 8.2°C 0.63mm 0.31kPa 22362m 3.3m/s 3m/s
05:00
14% 3.6°C 0mm 69% 0cm -6° 8.9°C 0.88mm 0.35kPa 21475m 3.8m/s 3.4m/s
06:00
11% 3.8°C 0.07mm 70% 0cm 2.6° 9°C 1.5mm 0.35kPa 16273m 4m/s 3.4m/s
07:00
9% 4°C 0.15mm 70% 0cm 12° 9.1°C 2.2mm 0.34kPa 11071m 4.2m/s 3.4m/s
08:00
6% 4.2°C 0.22mm 71% 0cm 22° 9.2°C 2.9mm 0.34kPa 5869m 4.4m/s 3.4m/s
09:00
7% 3.6°C 0.17mm 69% 0cm 32° 9°C 2.3mm 0.36kPa 5669m 4.3m/s 3.2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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