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Rule Fog Hunter

Grindelwald - Fog Hunter - Alps

Grindelwald, Bern, Switzerland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread5.8°C
Visibility9827 (Moderate)
Relative Humidity63%
Wind Speed2.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich
fog weather icon
Next opportunity
Dense Fog (lingering)
Grindelwald
Thu, Mar 12 · 22:00–02:00 · 4h window
Medium confidence
41%
🌫️Fog Probability90.3-100%
Dewpoint Spread: 1.5°C
Visibility: 963 (Fog)
Relative Humidity: 89%
Wind Speed: 0.6m/s (calm conditions)
fog weather icon
Dense Fog (lingering) at Dusk
Grindelwald
Fri, Mar 13 · 19:00–20:00
🌫️Fog Probability:94.4%
Medium
fog weather icon
Dense Fog (lingering)
Grindelwald
Fri, Mar 13 · 20:00–23:00
🌫️Fog Probability:100%
Medium

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Zurich
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Wed, Mar 4
02:000%5.9°C24134m0.53m/s
03:000%6.2°C24134m0.28m/s
04:000%5.5°C24135m0.35m/s
05:000%4.6°C24134m0.47m/s
06:000%4.6°C24134m0.76m/s
07:000%5.2°C24134m1.2m/s
08:000%4.8°C24135m1.1m/s
09:000%6.2°C24135m0.5m/s
10:000%7.4°C24134m0.18m/s
11:000%7.4°C24135m0.16m/s
12:000%6.8°C24134m0.38m/s
13:000%6.2°C24134m0.44m/s
14:000%4.9°C24134m0.28m/s
15:000%4.4°C24134m0.26m/s
16:000%4.1°C24135m0.21m/s
17:000%2.3°C24135m0.1m/s
18:000%1.8°C24135m0.99m/s
19:000%1.7°C24135m1.5m/s
20:000%1.5°C23477m1.7m/s
21:000%1.5°C20236m2m/s
22:000%1.7°C8699m2.3m/s
23:000%2.4°C7855m2.3m/s
Thu, Mar 5
24:000%3.8°C8354m2.3m/s
01:000%4.8°C10529m2.3m/s
02:000%5.8°C9827m2.1m/s
03:000%6.8°C22239m2.1m/s
04:000%7.9°C24134m2.2m/s
05:000%8.9°C24134m2.1m/s
06:000%9.3°C24135m2.3m/s
07:000%8.9°C24134m2.3m/s
08:000%8°C24135m2.4m/s
09:000%6.4°C24135m2.5m/s
10:000%6.5°C24134m2.5m/s
11:000%5.4°C24134m2.8m/s
12:000%3.8°C24134m3.2m/s
13:000%3.1°C24135m3.1m/s
14:000%3°C24134m3.1m/s
15:000%3.1°C24134m2.8m/s
16:000%2.9°C24134m2.9m/s
17:000%2°C18979m3.2m/s
18:000%1.6°C19630m3.4m/s
19:000%1.6°C10719m3.6m/s
20:00100%1.4°C291m3.7m/s
21:0079%1.6°C2256m3.5m/s
22:000%2.3°C14649m3.4m/s
23:000%2.7°C12132m3.3m/s
Fri, Mar 6
24:000%2.9°C14773m2.7m/s
01:000%3.3°C11308m2.7m/s
02:000%3.5°C9938m2.4m/s
03:000%3.5°C11350m2.4m/s
04:000%3.3°C13152m2.2m/s
05:000%3.3°C24134m2.1m/s
06:000%3.3°C24134m2.1m/s
07:000%2.9°C24135m2.3m/s
08:000%2.5°C24134m2.4m/s
09:000%2.6°C24135m2.3m/s
10:000%2.7°C24134m2.2m/s
11:000%2.3°C24134m2m/s
12:000%2.3°C13849m1.8m/s
13:000%2.3°C13808m2m/s
14:000%2.3°C13846m2m/s
15:000%2.4°C14572m2.1m/s
16:000%2.3°C24134m1.9m/s
17:000%1.8°C24134m1.9m/s
18:000%1.2°C24134m2.2m/s
19:00100%1.3°C606m2.4m/s
20:00100%1.4°C288m2.5m/s
21:00100%1.5°C484m2.5m/s
22:00100%1.6°C942m2.5m/s
23:000%2.1°C22997m2.3m/s
Sat, Mar 7
24:000%2.8°C24135m2.3m/s
01:000%2.9°C10803m2.3m/s
02:000%2.7°C8266m2.2m/s
03:000%2.8°C9068m2.2m/s
04:000%3°C10366m2.3m/s
05:000%2.8°C8406m2.3m/s
06:000%2.8°C10357m2.2m/s
07:000%3.2°C15199m2.1m/s
08:000%3.2°C18178m2m/s
09:000%3.2°C21156m1.8m/s
10:000%3.3°C24135m1.7m/s
11:000%2.5°C16353m2m/s
12:000%1.8°C8570m2.3m/s
13:0084%1.1°C788m2.6m/s
14:0084%1.2°C694m2.8m/s
15:0084%1.2°C599m3m/s
16:0093%1.2°C505m3.1m/s
17:00100%1.4°C541m3m/s
18:00100%1.5°C578m2.9m/s
19:00100%1.6°C614m2.7m/s
20:000%2.1°C8454m2.6m/s
21:000%2.6°C16295m2.4m/s
22:000%3.1°C24135m2.2m/s
23:000%3.4°C24135m2.2m/s
Sun, Mar 8
24:000%3.7°C24135m2.1m/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/Zurich
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Wind Gusts
m/s
Thu, Mar 5 Sunrise 07:00 Sunset 18:18
02:00 ☾
-13°C 0mm 63% 0cm -7.6°C 0mm 0.13kPa 2.3m/s
03:00 ☾
-14°C 0mm 58% 0cm -7.4°C 0mm 0.15kPa 2.2m/s
04:00 ☾
-15°C 0mm 53% 0cm -7.1°C 0mm 0.17kPa 2.2m/s
05:00 ☾
-16°C 0mm 49% 0cm -6.8°C 0mm 0.19kPa 2.2m/s
06:00 ☾
-16°C 0mm 48% 0cm -6.5°C 0mm 0.2kPa 2.2m/s
07:00 ☾
-15°C 0mm 49% 0cm -6.5°C 0mm 0.19kPa 2.3m/s
08:00
-13°C 0mm 53% 0cm -5.2°C 0mm 0.2kPa 2.2m/s
09:00
-8.9°C 0mm 61% 0cm -2.5°C 0mm 0.2kPa 2.3m/s
10:00
-7.5°C 0mm 61% 0cm -1°C 0mm 0.22kPa 2.2m/s
11:00
-6.2°C 0mm 67% 0cm -0.85°C 0mm 0.19kPa 2.5m/s
12:00
-4.9°C 0mm 75% 0cm -1.1°C 0mm 0.14kPa 2.9m/s
13:00
-4.3°C 0mm 79% 0cm -1.2°C 0mm 0.12kPa 2.8m/s
14:00
-4.1°C 0mm 80% 0cm -1.1°C 0mm 0.11kPa 2.7m/s
15:00
-4.2°C 0mm 79% 0cm -1.1°C 0mm 0.12kPa 2.5m/s
16:00
-4.2°C 0mm 80% 0cm -1.3°C 0mm 0.11kPa 2.7m/s
17:00
-4.3°C 0mm 86% 0cm -2.3°C 0mm 0.07kPa 3m/s
18:00
-6.2°C 0mm 89% 0cm -4.6°C 0mm 0.05kPa 2.8m/s
19:00 ☾
-7°C 0mm 88% 0cm -5.4°C 0mm 0.05kPa 3m/s
20:00 ☾
-6.5°C 0mm 90% 0cm -5.1°C 0mm 0.04kPa 3.1m/s
21:00 ☾
-6.7°C 0mm 88% 0cm -5.1°C 0mm 0.05kPa 3m/s
22:00 ☾
-7.4°C 0mm 84% 0cm -5.1°C 0mm 0.07kPa 2.8m/s
23:00 ☾
-7.7°C 0mm 82% 0cm -5°C 0mm 0.08kPa 2.8m/s
Fri, Mar 6 Sunrise 07:00 Sunset 18:18
24:00 ☾
-8.1°C 0mm 80% 0cm -5.2°C 0mm 0.08kPa 2.5m/s
01:00 ☾
-8.4°C 0mm 77% 0cm -5.1°C 0mm 0.09kPa 2.5m/s
02:00 ☾
-8.6°C 0mm 76% 0cm -5.1°C 0mm 0.1kPa 2.4m/s
03:00 ☾
-8.5°C 0mm 76% 0cm -5°C 0mm 0.1kPa 2.4m/s
04:00 ☾
-8.3°C 0mm 78% 0cm -5°C 0mm 0.09kPa 2.2m/s
05:00 ☾
-7.9°C 0mm 78% 0cm -4.6°C 0mm 0.1kPa 2.3m/s
06:00 ☾
-7.2°C 0mm 78% 0cm -3.9°C 0mm 0.1kPa 2.2m/s
07:00
-6.5°C 0mm 80% 0cm -3.6°C 0mm 0.09kPa 2.3m/s
08:00
-5.2°C 0mm 83% 0cm -2.7°C 0mm 0.09kPa 2.3m/s
09:00
-3.4°C 0mm 82% 0cm -0.78°C 0mm 0.1kPa 2.3m/s
10:00
-2.6°C 0mm 82% 0cm 0.06°C 0mm 0.11kPa 2.1m/s
11:00
-1.9°C 0mm 84% 0cm 0.37°C 0mm 0.1kPa 1.9m/s
12:00
-1.5°C 0mm 84% 0cm 0.8°C 0mm 0.1kPa 1.8m/s
13:00
-1.4°C 0mm 84% 0cm 0.9°C 0mm 0.1kPa 1.9m/s
14:00
-1.5°C 0mm 84% 0cm 0.82°C 0mm 0.1kPa 1.9m/s
15:00
-1.6°C 0mm 84% 0cm 0.78°C 0mm 0.1kPa 2m/s
16:00
-1.5°C 0mm 85% 0cm 0.77°C 0mm 0.1kPa 1.8m/s
17:00
-1.8°C 0mm 88% 0cm -0.02°C 0mm 0.08kPa 1.8m/s
18:00
-3.7°C 0mm 92% 0cm -2.5°C 0mm 0.04kPa 2m/s
19:00 ☾
-4.7°C 0mm 91% 0cm -3.4°C 0mm 0.04kPa 2.3m/s
20:00 ☾
-4.7°C 0mm 90% 0cm -3.3°C 0mm 0.05kPa 2.4m/s
21:00 ☾
-4.7°C 0mm 89% 0cm -3.2°C 0mm 0.05kPa 2.4m/s
22:00 ☾
-5.1°C 0mm 89% 0cm -3.5°C 0mm 0.05kPa 2.4m/s
23:00 ☾
-5.9°C 0mm 86% 0cm -3.8°C 0mm 0.07kPa 2.3m/s
Sat, Mar 7 Sunrise 06:58 Sunset 18:20
24:00 ☾
-6.5°C 0mm 81% 0cm -3.7°C 0mm 0.09kPa 2.3m/s
01:00 ☾
-6.7°C 0mm 80% 0cm -3.8°C 0mm 0.09kPa 2.3m/s
02:00 ☾
-6.9°C 0mm 81% 0cm -4.2°C 0mm 0.08kPa 2.3m/s
03:00 ☾
-7.4°C 0mm 81% 0cm -4.6°C 0mm 0.08kPa 2.3m/s
04:00 ☾
-7.7°C 0mm 80% 0cm -4.7°C 0mm 0.09kPa 2.3m/s
05:00 ☾
-7.7°C 0mm 80% 0cm -4.9°C 0mm 0.08kPa 2.3m/s
06:00 ☾
-8.1°C 0mm 80% 0cm -5.3°C 0mm 0.08kPa 2.2m/s
07:00
-8.7°C 0mm 78% 0cm -5.5°C 0mm 0.09kPa 2.2m/s
08:00
-6.7°C 0mm 78% 0cm -3.5°C 0mm 0.1kPa 1.9m/s
09:00
-4.7°C 0mm 78% 0cm -1.5°C 0mm 0.12kPa 1.6m/s
10:00
-2.8°C 0mm 78% 0cm 0.53°C 0mm 0.14kPa 1.3m/s
11:00
-3.6°C 0mm 83% 0cm -1.1°C 0mm 0.1kPa 1.7m/s
12:00
-4.5°C 0mm 87% 0cm -2.7°C 0mm 0.06kPa 2m/s
13:00
-5.4°C 0mm 92% 0cm -4.3°C 0mm 0.04kPa 2.4m/s
14:00
-5.7°C 0mm 92% 0cm -4.5°C 0mm 0.04kPa 2.6m/s
15:00
-5.9°C 0mm 91% 0cm -4.7°C 0mm 0.04kPa 2.7m/s
16:00
-6.1°C 0mm 91% 0cm -4.9°C 0mm 0.04kPa 2.9m/s
17:00
-6.5°C 0mm 90% 0cm -5.1°C 0mm 0.04kPa 2.8m/s
18:00
-6.8°C 0mm 89% 0cm -5.3°C 0mm 0.04kPa 2.7m/s
19:00 ☾
-7.1°C 0mm 88% 0cm -5.5°C 0mm 0.05kPa 2.6m/s
20:00 ☾
-7.8°C 0mm 85% 0cm -5.7°C 0mm 0.06kPa 2.4m/s
21:00 ☾
-8.6°C 0mm 82% 0cm -6°C 0mm 0.07kPa 2.3m/s
22:00 ☾
-9.3°C 0mm 79% 0cm -6.2°C 0mm 0.08kPa 2.1m/s
23:00 ☾
-9.7°C 0mm 77% 0cm -6.3°C 0mm 0.09kPa 2.1m/s
Sun, Mar 8 Sunrise 06:56 Sunset 18:21
24:00 ☾
-10°C 0mm 75% 0cm -6.4°C 0mm 0.1kPa 2m/s
01:00 ☾
-11°C 0mm 73% 0cm -6.5°C 0mm 0.1kPa 2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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