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Rule Fog Hunter

Matterhorn - Fog Hunter - Alps

Zermatt, Valais, Switzerland

Thick, moody fog for atmospheric forest and landscape shots

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Zurich
Next opportunity
Dense Fog (lingering)
Matterhorn
Thu, Jan 22 · 15:00–16:00 · 1h window
Medium confidence
45%
Dense Fog (lingering) at Sunset
Matterhorn
Thu, Jan 22 · 16:00–18:00
High
Dense Fog (lingering)
Matterhorn
Thu, Jan 22 · 18:00–19:00
Medium

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 72 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
Sun, Jan 11
19:000%7.6°C74200m1.4m/s
20:000%8.5°C75620m1.4m/s
21:000%8.8°C75840m1.6m/s
22:000%8.7°C75780m1.8m/s
23:000%8.5°C75540m1.9m/s
Mon, Jan 12
24:000%8.3°C75160m1.9m/s
01:000%7.4°C73120m1.9m/s
02:000%6.7°C71240m1.8m/s
03:000%6.6°C70220m2m/s
04:000%5.6°C63860m2.2m/s
05:000%4.3°C54300m1.9m/s
06:000%3.4°C43640m1.9m/s
07:000%3°C35120m1.6m/s
08:000%2.5°C19000m1.6m/s
09:000%2.7°C24460m1m/s
10:000%3.9°C49200m1.4m/s
11:000%4.7°C54880m1.5m/s
12:000%5.9°C60980m1.6m/s
13:000%7°C67400m1.7m/s
14:000%7.3°C67800m1m/s
15:000%8°C71700m1.1m/s
16:000%7.8°C72400m1m/s
17:000%5.3°C63380m1.3m/s
18:000%5.9°C66620m1.1m/s
19:000%5.7°C65340m1.4m/s
20:000%5.6°C64720m1.3m/s
21:000%5.8°C65920m1.2m/s
22:000%6°C66360m1.4m/s
23:000%6.6°C70020m1.5m/s
Tue, Jan 13
24:000%7.2°C72400m1.6m/s
01:000%8.4°C75100m1.6m/s
02:000%8.9°C75620m1.7m/s
03:000%8.9°C75740m1.7m/s
04:000%8.6°C75400m1.5m/s
05:000%9.1°C75780m1.6m/s
06:000%8.8°C75660m1.6m/s
07:000%8.6°C75240m1.7m/s
08:000%7.8°C73820m1.8m/s
09:000%8.1°C74360m1.8m/s
10:000%8.7°C75360m1.6m/s
11:000%9°C75520m1.5m/s
12:000%9.9°C75740m1.5m/s
13:000%13°C77780m0.81m/s
14:000%13°C78055m1.2m/s
15:000%12°C77670m1.6m/s
16:000%12°C77605m2.1m/s
17:000%12°C77660m2.5m/s
18:000%13°C77960m2.5m/s
19:000%13°C77900m2.7m/s
20:000%12°C77060m3m/s
21:000%11°C76380m2.8m/s
22:000%11°C76280m3m/s
23:000%12°C76260m2.9m/s
Wed, Jan 14
24:000%11°C75960m2.5m/s
01:000%11°C75900m2.7m/s
02:000%11°C75880m2.6m/s
03:000%11°C75860m2.5m/s
04:000%11°C76120m3.1m/s
05:000%13°C77960m2.9m/s
06:000%13°C78560m3.1m/s
07:000%13°C78940m3.1m/s
08:000%13°C78200m3m/s
09:000%12°C76940m3.1m/s
10:000%12°C76280m3.2m/s
11:000%11°C74100m2.8m/s
12:000%9°C70420m2.8m/s
13:000%8.7°C71360m2.6m/s
14:000%8.8°C73260m2.6m/s
15:000%7.6°C71060m2.7m/s
16:000%6.7°C66960m2.9m/s
17:000%6°C63840m2.7m/s
18:000%5°C48580m2.6m/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
Sun, Jan 11 Sunrise 08:09 Sunset 17:04
20:00 ☾
-14°C 0mm 51% 0cm -5.5°C 0mm 0.2kPa 2.3m/s
21:00 ☾
-14°C 0mm 50% 0cm -5.6°C 0mm 0.2kPa 2.4m/s
22:00 ☾
-14°C 0mm 50% 0cm -5.7°C 0mm 0.2kPa 2.7m/s
23:00 ☾
-14°C 0mm 51% 0cm -5.6°C 0mm 0.2kPa 2.9m/s
Mon, Jan 12 Sunrise 08:09 Sunset 17:04
24:00 ☾
-14°C 0mm 52% 0cm -5.3°C 0mm 0.2kPa 2.9m/s
01:00 ☾
-13°C 0mm 56% 0cm -5.5°C 0mm 0.18kPa 2.9m/s
02:00 ☾
-12°C 0mm 59% 0cm -5.3°C 0mm 0.17kPa 3m/s
03:00 ☾
-11°C 0mm 60% 0cm -4.4°C 0mm 0.18kPa 3.1m/s
04:00 ☾
-9.5°C 0mm 65% 0cm -3.9°C 0mm 0.16kPa 3.5m/s
05:00 ☾
-7.8°C 0mm 72% 0cm -3.5°C 0mm 0.13kPa 3.3m/s
06:00 ☾
-6.7°C 0mm 77% 0cm -3.3°C 0mm 0.11kPa 3.1m/s
07:00 ☾
-5.9°C 0mm 80% 0cm -2.9°C 0mm 0.1kPa 2.8m/s
08:00 ☾
-4.9°C 0mm 83% 0cm -2.4°C 0mm 0.09kPa 2.4m/s
09:00
-4.2°C 0mm 82% 0.07cm -1.5°C 0.1mm 0.1kPa 2.4m/s
10:00
-4°C 0mm 75% 0cm -0.1°C 0mm 0.15kPa 2.4m/s
11:00
-3.5°C 0mm 71% 0cm 1.2°C 0mm 0.19kPa 2.7m/s
12:00
-3.3°C 0mm 65% 0cm 2.6°C 0mm 0.26kPa 2.8m/s
13:00
-3.4°C 0mm 60% 0cm 3.6°C 0mm 0.32kPa 2.7m/s
14:00
-3.3°C 0mm 59% 0cm 4°C 0mm 0.33kPa 2.1m/s
15:00
-3.9°C 0mm 56% 0cm 4.1°C 0mm 0.36kPa 2m/s
16:00
-3.6°C 0mm 57% 0cm 4.2°C 0mm 0.35kPa 1.5m/s
17:00
-2°C 0mm 68% 0cm 3.3°C 0mm 0.25kPa 2m/s
18:00 ☾
-3.5°C 0mm 65% 0cm 2.4°C 0mm 0.25kPa 2m/s
19:00 ☾
-4°C 0mm 66% 0cm 1.7°C 0mm 0.23kPa 2.1m/s
20:00 ☾
-4.3°C 0mm 66% 0cm 1.3°C 0mm 0.23kPa 2m/s
21:00 ☾
-4.8°C 0mm 65% 0cm 1°C 0mm 0.23kPa 1.9m/s
22:00 ☾
-5.4°C 0mm 64% 0cm 0.6°C 0mm 0.23kPa 2m/s
23:00 ☾
-6.6°C 0mm 61% 0cm 0°C 0mm 0.24kPa 2.1m/s
Tue, Jan 13 Sunrise 08:08 Sunset 17:05
24:00 ☾
-7.6°C 0mm 58% 0cm -0.4°C 0mm 0.25kPa 2.4m/s
01:00 ☾
-8.7°C 0mm 53% 0cm -0.3°C 0mm 0.28kPa 2.5m/s
02:00 ☾
-9.4°C 0mm 51% 0cm -0.5°C 0mm 0.29kPa 2.5m/s
03:00 ☾
-9.6°C 0mm 51% 0cm -0.7°C 0mm 0.28kPa 2.6m/s
04:00 ☾
-9.7°C 0mm 52% 0cm -1.1°C 0mm 0.27kPa 2.4m/s
05:00 ☾
-10°C 0mm 50% 0cm -1.1°C 0mm 0.28kPa 2.4m/s
06:00 ☾
-10°C 0mm 51% 0cm -1.2°C 0mm 0.27kPa 2.5m/s
07:00 ☾
-9.9°C 0mm 52% 0cm -1.3°C 0mm 0.27kPa 2.5m/s
08:00 ☾
-9.5°C 0mm 55% 0cm -1.7°C 0mm 0.24kPa 2.6m/s
09:00
-9.5°C 0mm 54% 0cm -1.4°C 0mm 0.25kPa 2.8m/s
10:00
-9°C 0mm 52% 0cm -0.3°C 0mm 0.29kPa 2.7m/s
11:00
-7.8°C 0mm 51% 0cm 1.2°C 0mm 0.33kPa 2.4m/s
12:00
-7°C 0mm 48% 0cm 2.9°C 0mm 0.39kPa 2.8m/s
13:00
-8.7°C 0mm 37% 0cm 4.7°C 0mm 0.54kPa 2.2m/s
14:00
-8.9°C 0mm 37% 0cm 4.5°C 0mm 0.53kPa 2.1m/s
15:00
-8.4°C 0mm 40% 0cm 4°C 0mm 0.49kPa 3.1m/s
16:00
-8.9°C 0mm 40% 0cm 3.4°C 0mm 0.47kPa 4m/s
17:00
-9.6°C 0mm 40% 0cm 2.6°C 0mm 0.44kPa 4.9m/s
18:00 ☾
-10°C 0mm 39% 0cm 2.4°C 0mm 0.44kPa 4.6m/s
19:00 ☾
-11°C 0mm 38% 0cm 2.2°C 0mm 0.44kPa 5.1m/s
20:00 ☾
-10°C 0mm 40% 0cm 2.2°C 0mm 0.43kPa 5.8m/s
21:00 ☾
-9.3°C 0mm 43% 0cm 2°C 0mm 0.4kPa 5.8m/s
22:00 ☾
-9.3°C 0mm 43% 0cm 1.9°C 0mm 0.4kPa 6m/s
23:00 ☾
-9.6°C 0mm 42% 0cm 1.9°C 0mm 0.41kPa 6.1m/s
Wed, Jan 14 Sunrise 08:08 Sunset 17:07
24:00 ☾
-9.9°C 0mm 43% 0cm 1.3°C 0mm 0.38kPa 6.1m/s
01:00 ☾
-9.6°C 0mm 45% 0cm 1°C 0mm 0.36kPa 5.5m/s
02:00 ☾
-9.9°C 0mm 45% 0cm 0.7°C 0mm 0.35kPa 5.6m/s
03:00 ☾
-10°C 0mm 44% 0cm 0.4°C 0mm 0.35kPa 5.7m/s
04:00 ☾
-10°C 0mm 43% 0cm 0.7°C 0mm 0.37kPa 6.7m/s
05:00 ☾
-12°C 0mm 38% 0cm 0.8°C 0mm 0.4kPa 6.7m/s
06:00 ☾
-12°C 0mm 37% 0cm 1.2°C 0mm 0.42kPa 7m/s
07:00 ☾
-12°C 0mm 36% 0cm 1.2°C 0mm 0.43kPa 7.4m/s
08:00 ☾
-12°C 0mm 38% 0cm 1°C 0mm 0.41kPa 7.4m/s
09:00
-11°C 0mm 40% 0cm 0.8°C 0mm 0.39kPa 7.3m/s
10:00
-11°C 0mm 41% 0cm 0.7°C 0mm 0.38kPa 7.4m/s
11:00
-9.9°C 0mm 45% 0cm 0.7°C 0mm 0.35kPa 7.3m/s
12:00
-8.3°C 0mm 51% 0cm 0.7°C 0mm 0.31kPa 7m/s
13:00
-7.7°C 0mm 52% 0cm 1°C 0mm 0.32kPa 6.9m/s
14:00
-7.7°C 0mm 52% 0cm 1.1°C 0mm 0.32kPa 7.1m/s
15:00
-6.5°C 0mm 57% 0cm 1.1°C 0mm 0.28kPa 7.6m/s
16:00
-5.7°C 0mm 61% 0cm 1°C 0mm 0.26kPa 8.3m/s
17:00
-5.2°C 0mm 64% 0cm 0.8°C 0mm 0.23kPa 8.3m/s
18:00 ☾
-4.6°C 0mm 69% 0cm 0.4°C 0mm 0.19kPa 8.2m/s
19:00 ☾
-3.9°C 0mm 76% 0.07cm -0.2°C 0.1mm 0.14kPa 8.1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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