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Rule Fog Hunter

St. Moritz - Fog Hunter - Alps

Saint Moritz, Canton Grisons, Switzerland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread3.1°C
Visibility24134 (Clear)
Relative Humidity78%
Wind Speed3.2m/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) at Sunrise
St. Moritz
Tomorrow · 08:00–09:00 · 1h window
Medium confidence
58%
🌫️Fog Probability91.7%
Dewpoint Spread: 0.6°C
Visibility: 2095 (Mist/Haze)
Relative Humidity: 96%
Wind Speed: 1.1m/s (calm conditions)
fog weather icon
Dense Fog (lingering)
St. Moritz
Tomorrow · 09:00–10:00
🌫️Fog Probability:98.6%
Medium
fog weather icon
Dense Fog (lingering)
St. Moritz
Wed, Feb 18 · 05:00–06:00
🌫️Fog Probability:100%
Medium

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72-hour requirements breakdown

What passed or failed, hour by hour
3matching hours in the next 95 hoursJump to next match
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
Sun, Feb 15
02:0084%0.1°C757m4.4m/s
03:0084%0.1°C708m4.4m/s
04:0084%0°C834m4.5m/s
05:0084%0.1°C805m4.2m/s
06:0042%0.1°C787m4.3m/s
07:0034%0°C2057m4.3m/s
08:0097%0°C2216m3.9m/s
09:0076%0.1°C1223m4.5m/s
10:0050%0.7°C5780m4m/s
11:000%1.3°C12864m4.4m/s
12:000%2.2°C22093m4.4m/s
13:000%3.5°C24134m4.1m/s
14:000%3.7°C24135m3.7m/s
15:000%3.6°C24135m3.6m/s
16:000%3.3°C24135m2.5m/s
17:000%1.8°C24134m1.7m/s
18:000%2°C24134m1.8m/s
19:000%5.7°C24134m3.1m/s
20:000%6.2°C24134m3.7m/s
21:000%4.3°C24134m3.8m/s
22:000%2.9°C22340m4.5m/s
23:0033%2.2°C2405m3.6m/s
Mon, Feb 16
24:000%1.1°C820m2.9m/s
01:000%2.4°C24134m3m/s
02:000%3.1°C24134m3.2m/s
03:000%3.3°C23238m4.1m/s
04:000%2.4°C5760m3.8m/s
05:000%2.1°C17682m3.4m/s
06:000%0.6°C170m3.7m/s
07:000%0.6°C217m2.7m/s
08:0057%0.6°C189m2.1m/s
09:000%0.5°C99m2.3m/s
10:000%0.5°C80m3.9m/s
11:000%0.8°C172m3.2m/s
12:000%1.2°C2505m3.5m/s
13:000%2.4°C2785m3.4m/s
14:000%6.7°C24134m3.2m/s
15:000%6.5°C18448m3.2m/s
16:000%4.5°C13165m3.4m/s
17:000%2.5°C13998m1.8m/s
18:000%1.3°C518m1.6m/s
19:000%0.5°C181m3.8m/s
20:0034%0.8°C11054m1.5m/s
21:0038%0.2°C14117m1.1m/s
22:0054%0.2°C1694m1.4m/s
23:000%0.1°C353m1.5m/s
Tue, Feb 17
24:000%0.1°C432m1.9m/s
01:000%0.1°C758m1.8m/s
02:0060%0.2°C130m2.4m/s
03:000%0.5°C381m2.2m/s
04:000%0.1°C2393m1.9m/s
05:000%0.5°C113m2.2m/s
06:000%0.6°C832m0.04m/s
07:000%0.4°C127m2.5m/s
08:0092%0.6°C2095m1.1m/s
09:0099%0.8°C1255m1.5m/s
10:0045%1.6°C358m1.3m/s
11:0041%1.8°C271m1.3m/s
12:000%1.3°C204m2.6m/s
13:000%2°C795m2.4m/s
14:0031%2.6°C1527m2.5m/s
15:000%2.8°C4953m2.4m/s
16:000%2.7°C4890m2.4m/s
17:0042%1.1°C2089m1.8m/s
18:0036%0.6°C13985m1.6m/s
19:0036%0.5°C13904m1.4m/s
20:000%1.2°C13939m1.2m/s
21:000%1.6°C16481m0.76m/s
22:000%2.5°C24135m1.7m/s
23:000%2.4°C23474m0.41m/s
Wed, Feb 18
24:000%2.1°C24134m0.5m/s
01:000%1.3°C23694m0.44m/s
02:0060%0.7°C22760m0.46m/s
03:0067%0.5°C15821m0.89m/s
04:0097%0.1°C3597m1.4m/s
05:00100%0°C302m2m/s
06:00100%0°C186m2.2m/s
07:00100%0°C241m2.3m/s
08:000%1.4°C8206m1.8m/s
09:000%3°C16171m1.3m/s
10:000%4.9°C24135m0.8m/s
11:000%3.9°C24135m1.7m/s
12:000%2.9°C24135m2.5m/s
13:000%2.2°C24135m3.3m/s
14:000%1.7°C20419m3.8m/s
15:000%1.3°C16704m4.2m/s
16:0042%0.8°C12988m4.6m/s
17:0056%0.6°C9937m4.8m/s
18:0058%0.4°C6886m4.9m/s
19:0068%0.1°C3835m5m/s
20:0058%0.3°C5378m4.7m/s
21:0058%0.5°C6921m4.4m/s
22:0053%0.6°C8464m4.1m/s
23:0040%0.7°C6939m3.3m/s
Thu, Feb 19
24:0040%0.6°C5414m2.4m/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
Mon, Feb 16 Sunrise 07:23 Sunset 17:46
02:00 ☾
-13°C 0mm 78% 0cm -9.8°C 0mm 0.06kPa 3.1m/s
03:00 ☾
-11°C 0mm 77% 0cm -7.9°C 0mm 0.08kPa 3.9m/s
04:00 ☾
-9.5°C 0.11mm 83% 0.11cm -7.1°C 0.06mm 0.06kPa 4.2m/s
05:00 ☾
-7.8°C 0.08mm 85% 0cm -5.7°C 0.13mm 0.06kPa 3.6m/s
06:00 ☾
-7.6°C 1.3mm 95% 1.3cm -7°C 0.75mm 0.02kPa 4.3m/s
07:00 ☾
-7.7°C 1.5mm 96% 1.5cm -7.1°C 1.6mm 0.02kPa 3.3m/s
08:00
-7.2°C 0.91mm 95% 0.95cm -6.6°C 0.88mm 0.02kPa 2.3m/s
09:00
-6.8°C 1.5mm 96% 1.6cm -6.3°C 2.8mm 0.02kPa 2.2m/s
10:00
-6.3°C 2.3mm 96% 2.4cm -5.8°C 4.3mm 0.01kPa 4m/s
11:00
-6.7°C 0.94mm 95% 0.96cm -5.9°C 6.1mm 0.02kPa 3.5m/s
12:00
-6.9°C 0.06mm 91% 0cm -5.7°C 6.8mm 0.03kPa 3.7m/s
13:00
-7.4°C 0mm 83% 0.39cm -5°C 6.8mm 0.07kPa 5.4m/s
14:00
-11°C 0mm 60% 0cm -4.4°C 0.13mm 0.18kPa 11m/s
15:00
-11°C 0mm 60% 0.04cm -4.8°C 0.19mm 0.17kPa 12m/s
16:00
-9.9°C 0.08mm 71% 0cm -5.4°C 0.31mm 0.12kPa 9.1m/s
17:00
-11°C 0.5mm 82% 0cm -8.6°C 0.5mm 0.06kPa 1.8m/s
18:00 ☾
-9.9°C 1.9mm 90% 2cm -8.6°C 1.2mm 0.03kPa 1.6m/s
19:00 ☾
-8.3°C 1.9mm 96% 2.5cm -7.8°C 4.3mm 0.01kPa 4.4m/s
20:00 ☾
-11°C 0mm 94% 0.02cm -10°C 0.56mm 0.02kPa 1.8m/s
21:00 ☾
-14°C 0.07mm 98% 0cm -14°C 0.63mm 0kPa 1.3m/s
22:00 ☾
-14°C 0.41mm 99% 0cm -14°C 0.88mm 0kPa 1.4m/s
23:00 ☾
-13°C 0.19mm 99% 0cm -13°C 1.6mm 0kPa 1.7m/s
Tue, Feb 17 Sunrise 07:23 Sunset 17:46
24:00 ☾
-13°C 0.11mm 100% 0cm -13°C 1.9mm 0kPa 1.8m/s
01:00 ☾
-13°C 0.26mm 99% 0cm -13°C 2mm 0kPa 1.8m/s
02:00 ☾
-13°C 0.51mm 98% 0.51cm -12°C 0.44mm 0kPa 2.5m/s
03:00 ☾
-11°C 0.14mm 96% 0.15cm -10°C 1mm 0.01kPa 2.3m/s
04:00 ☾
-15°C 0.12mm 100% 0.12cm -15°C 1.1mm 0kPa 1.9m/s
05:00 ☾
-12°C 1.1mm 96% 1.2cm -12°C 1.9mm 0.01kPa 2.2m/s
06:00 ☾
-12°C 0.28mm 95% 0cm -11°C 2.3mm 0.01kPa 0.8m/s
07:00 ☾
-12°C 0.44mm 97% 0.45cm -12°C 2.9mm 0.01kPa 2.5m/s
08:00
-11°C 0.02mm 96% 0cm -11°C 0.19mm 0.01kPa 1.4m/s
09:00
-11°C 0.04mm 94% 0cm -10°C 0.19mm 0.02kPa 1.8m/s
10:00
-12°C 0.24mm 88% 0.26cm -10°C 0.38mm 0.03kPa 1.1m/s
11:00
-12°C 0.27mm 86% 0.29cm -10°C 0.75mm 0.04kPa 1.1m/s
12:00
-10°C 0.86mm 90% 0.91cm -8.9°C 1.3mm 0.03kPa 2.7m/s
13:00
-10°C 0.24mm 86% 0.26cm -8.5°C 1.7mm 0.05kPa 2.9m/s
14:00
-10°C 0.11mm 82% 0.21cm -7.7°C 0.19mm 0.06kPa 3.1m/s
15:00
-10°C 0.08mm 80% 0.2cm -7.4°C 0.38mm 0.07kPa 3.2m/s
16:00
-10°C 0.04mm 81% 0.13cm -7.5°C 0.63mm 0.07kPa 3.6m/s
17:00
-9.8°C 0.06mm 92% 0cm -8.7°C 0.69mm 0.03kPa 1.7m/s
18:00 ☾
-11°C 0.07mm 95% 0cm -11°C 0.75mm 0.01kPa 1.5m/s
19:00 ☾
-13°C 0.09mm 96% 0cm -12°C 0.81mm 0.01kPa 1.3m/s
20:00 ☾
-14°C 0.09mm 90% 0cm -13°C 0.06mm 0.02kPa 1.2m/s
21:00 ☾
-15°C 0mm 87% 0cm -13°C 0.06mm 0.03kPa 1.2m/s
22:00 ☾
-16°C 0mm 81% 0cm -14°C 0.06mm 0.04kPa 1.6m/s
23:00 ☾
-16°C 0mm 82% 0cm -14°C 0.06mm 0.04kPa 1.3m/s
Wed, Feb 18 Sunrise 07:21 Sunset 17:48
24:00 ☾
-16°C 0mm 84% 0cm -14°C 0.06mm 0.03kPa 1.3m/s
01:00 ☾
-15°C 0mm 90% 0cm -14°C 0.06mm 0.02kPa 1.4m/s
02:00 ☾
-15°C 0mm 95% 0cm -15°C 0mm 0.01kPa 1.3m/s
03:00 ☾
-16°C 0.01mm 96% 0cm -15°C 0mm 0.01kPa 1.5m/s
04:00 ☾
-15°C 0.01mm 100% 0cm -15°C 0mm 0kPa 1.6m/s
05:00 ☾
-14°C 0.01mm 100% 0cm -14°C 0mm 0kPa 2m/s
06:00 ☾
-14°C 0.01mm 100% 0cm -14°C 0.06mm 0kPa 2.3m/s
07:00 ☾
-13°C 0.01mm 100% 0cm -13°C 0.06mm 0kPa 2.2m/s
08:00
-12°C 0.007mm 89% 0cm -11°C 0.04mm 0.03kPa 1.8m/s
09:00
-11°C 0.003mm 79% 0cm -8°C 0.02mm 0.07kPa 1.4m/s
10:00
-10°C 0mm 68% 0cm -5.4°C 0mm 0.13kPa 1m/s
11:00
-11°C 0mm 74% 0cm -7.3°C 0mm 0.09kPa 1.7m/s
12:00
-12°C 0mm 79% 0cm -9.2°C 0mm 0.06kPa 2.4m/s
13:00
-13°C 0mm 84% 0cm -11°C 0mm 0.04kPa 3.1m/s
14:00
-13°C 0mm 87% 0cm -11°C 0mm 0.03kPa 3.9m/s
15:00
-12°C 0mm 90% 0cm -11°C 0mm 0.03kPa 4.6m/s
16:00
-12°C 0mm 93% 0cm -11°C 0mm 0.02kPa 5.4m/s
17:00
-12°C 0.007mm 95% 0.008cm -12°C 0mm 0.01kPa 5.7m/s
18:00 ☾
-12°C 0.01mm 97% 0.02cm -12°C 0mm 0.01kPa 6m/s
19:00 ☾
-13°C 0.02mm 99% 0.02cm -13°C 0mm 0kPa 6.2m/s
20:00 ☾
-13°C 0.03mm 98% 0.03cm -12°C 0.04mm 0.01kPa 5.6m/s
21:00 ☾
-13°C 0.04mm 96% 0.04cm -12°C 0.08mm 0.01kPa 4.9m/s
22:00 ☾
-13°C 0.05mm 95% 0.05cm -12°C 0.13mm 0.01kPa 4.2m/s
23:00 ☾
-12°C 0.09mm 95% 0.11cm -11°C 0.27mm 0.01kPa 3.2m/s
Thu, Feb 19 Sunrise 07:19 Sunset 17:49
24:00 ☾
-11°C 0.13mm 96% 0.18cm -10°C 0.42mm 0.01kPa 2.2m/s
01:00 ☾
-9.8°C 0.17mm 96% 0.24cm -9.3°C 0.56mm 0.01kPa 1.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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