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Rule Fog Hunter

Valley Fog in the Dolomites

South Tyrol, Italy

Thick, moody fog for atmospheric forest and landscape shots

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Rome
Next opportunity
Dense Fog (lingering)
Thu, Jan 15 · 01:00–02:00 · 1h window
Medium confidence
44%
Dense Fog (lingering)
Thu, Jan 15 · 18:00–20:00
Medium
Dense Fog (lingering)
Fri, Jan 16 · 04:00–07:00
High
Dense Fog (lingering) at Sunrise
Fri, Jan 16 · 07:00–08:00
Medium
Dense Fog (lingering)
Fri, Jan 16 · 15:00–16:00
Medium
Dense Fog (lingering) at Sunset
Fri, Jan 16 · 16:00–17:00
Medium
+2 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
0matching hours in the next 72 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Rome
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Fri, Jan 9
07:000%2.5°C25520m4.1m/s
08:0074%0.9°C2740m3.3m/s
09:00100%0.1°C220m3m/s
10:00100%0°C180m2.1m/s
11:0045%0°C160m2.8m/s
12:0089%0°C140m3.9m/s
13:0089%0.3°C360m3.5m/s
14:0087%0.4°C400m3.5m/s
15:0099%0.5°C520m2.9m/s
16:0084%0.9°C1300m2.9m/s
17:0074%0.9°C3160m2.8m/s
18:000%1.2°C4060m2.7m/s
19:000%1°C4060m2.5m/s
20:000%1.2°C4060m3.2m/s
21:000%2.6°C29920m3.3m/s
22:000%1.9°C18500m3.2m/s
23:000%2°C20420m3.2m/s
Sat, Jan 10
24:000%3.2°C36980m2.4m/s
01:000%2.6°C29840m2.6m/s
02:000%4°C47680m2.2m/s
03:000%5.2°C60380m2.8m/s
04:000%5.3°C61980m3.2m/s
05:000%5°C58800m3.4m/s
06:000%4.8°C56580m3.8m/s
07:000%4.6°C55240m4m/s
08:000%4.4°C53720m4m/s
09:000%4.4°C52360m4m/s
10:000%3.9°C48280m4.1m/s
11:000%4.1°C49120m4.4m/s
12:000%4.1°C48980m4.3m/s
13:000%3.6°C42140m4.1m/s
14:000%4.3°C47580m4m/s
15:000%4.1°C47220m4.2m/s
16:000%3.9°C45520m4.7m/s
17:000%3.3°C38720m5.1m/s
18:000%2.5°C27820m5.2m/s
19:000%2.7°C29880m6.4m/s
20:000%2.5°C27720m7.3m/s
21:000%2.3°C25960m7.6m/s
22:000%1.9°C19520m8m/s
23:000%2.2°C23720m7.5m/s
Sun, Jan 11
24:000%2.5°C28460m6.3m/s
01:000%3.1°C37820m5.5m/s
02:000%4°C47030m5.1m/s
03:000%4.7°C55180m4.8m/s
04:000%5.6°C61440m4.2m/s
05:000%6.7°C70620m3.6m/s
06:000%6.7°C70720m3.5m/s
07:000%6.5°C70440m3.3m/s
08:000%5.7°C65760m2.6m/s
09:000%5.3°C63220m2.3m/s
10:000%6.3°C68000m2.3m/s
11:000%6.7°C70440m2.3m/s
12:000%7.4°C72780m3.1m/s
13:000%8°C74460m3.5m/s
14:000%8.7°C75460m3.2m/s
15:000%9.5°C75860m2.8m/s
16:000%9.4°C75860m2.7m/s
17:000%10°C77280m2.8m/s
18:000%11°C77660m3.1m/s
19:000%12°C79120m3.1m/s
20:000%13°C80520m3.1m/s
21:000%15°C81700m3.2m/s
22:000%16°C82340m3m/s
23:000%16°C82660m3.1m/s
Mon, Jan 12
24:000%16°C82720m2.9m/s
01:000%17°C83060m2.9m/s
02:000%17°C83260m3m/s
03:000%17°C83400m2.7m/s
04:000%18°C83740m2.8m/s
05:000%18°C83760m2.8m/s
06:000%18°C84000m2.4m/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/Rome
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 07:55 Sunset 16:44
08:00
-10°C 0mm 93% 0cm -9.4°C 0mm 0.02kPa 14m/s
09:00
-9.9°C 0mm 99% 0cm -9.8°C 0mm 0kPa 12m/s
10:00
-9.9°C 0mm 100% 0cm -9.9°C 0mm 0kPa 11m/s
11:00
-11°C 0mm 100% 0.14cm -11°C 0.2mm 0kPa 11m/s
12:00
-11°C 0mm 100% 0cm -11°C 0mm 0kPa 13m/s
13:00
-11°C 0mm 98% 0cm -11°C 0mm 0.01kPa 13m/s
14:00
-11°C 0mm 97% 0cm -10°C 0mm 0.01kPa 12m/s
15:00
-11°C 0mm 96% 0cm -10°C 0mm 0.01kPa 10m/s
16:00
-12°C 0mm 93% 0cm -11°C 0mm 0.02kPa 11m/s
17:00
-12°C 0mm 93% 0cm -11°C 0mm 0.02kPa 10m/s
18:00
-12°C 0mm 91% 0cm -11°C 0mm 0.02kPa 9.4m/s
19:00
-12°C 0mm 92% 0cm -11°C 0mm 0.02kPa 9.6m/s
20:00
-13°C 0mm 91% 0cm -12°C 0mm 0.02kPa 9.2m/s
21:00
-14°C 0mm 81% 0cm -12°C 0mm 0.05kPa 10m/s
22:00
-14°C 0mm 86% 0cm -12°C 0mm 0.03kPa 10m/s
23:00
-14°C 0mm 85% 0cm -12°C 0mm 0.04kPa 9.9m/s
Sat, Jan 10 Sunrise 07:55 Sunset 16:44
24:00
-16°C 0mm 77% 0cm -13°C 0mm 0.05kPa 8.5m/s
01:00
-16°C 0mm 81% 0cm -13°C 0mm 0.04kPa 8.4m/s
02:00
-17°C 0mm 72% 0cm -13°C 0mm 0.06kPa 8.6m/s
03:00
-19°C 0mm 65% 0cm -13°C 0mm 0.08kPa 9.4m/s
04:00
-19°C 0mm 64% 0cm -14°C 0mm 0.08kPa 11m/s
05:00
-19°C 0mm 66% 0cm -14°C 0mm 0.07kPa 11m/s
06:00
-19°C 0mm 67% 0cm -14°C 0mm 0.07kPa 12m/s
07:00
-19°C 0mm 68% 0cm -14°C 0mm 0.07kPa 13m/s
08:00
-19°C 0mm 69% 0cm -14°C 0mm 0.06kPa 13m/s
09:00
-19°C 0mm 69% 0cm -15°C 0mm 0.06kPa 13m/s
10:00
-19°C 0mm 72% 0cm -15°C 0mm 0.05kPa 13m/s
11:00
-19°C 0mm 71% 0cm -15°C 0mm 0.06kPa 13m/s
12:00
-18°C 0mm 71% 0cm -14°C 0mm 0.06kPa 13m/s
13:00
-18°C 0mm 74% 0cm -14°C 0mm 0.05kPa 12m/s
14:00
-18°C 0mm 70% 0cm -14°C 0mm 0.06kPa 12m/s
15:00
-18°C 0mm 71% 0cm -14°C 0mm 0.06kPa 12m/s
16:00
-18°C 0mm 72% 0cm -14°C 0mm 0.06kPa 13m/s
17:00
-18°C 0mm 76% 0cm -15°C 0mm 0.05kPa 14m/s
18:00
-17°C 0mm 81% 0cm -15°C 0mm 0.04kPa 14m/s
19:00
-18°C 0mm 80% 0cm -15°C 0mm 0.04kPa 17m/s
20:00
-18°C 0mm 81% 0cm -16°C 0mm 0.03kPa 18m/s
21:00
-18°C 0mm 82% 0cm -16°C 0mm 0.03kPa 19m/s
22:00
-19°C 0mm 85% 0cm -17°C 0mm 0.02kPa 21m/s
23:00
-19°C 0mm 83% 0cm -17°C 0mm 0.03kPa 21m/s
Sun, Jan 11 Sunrise 07:54 Sunset 16:45
24:00
-19°C 0mm 81% 0cm -17°C 0mm 0.03kPa 20m/s
01:00
-20°C 0mm 77% 0cm -17°C 0mm 0.04kPa 18m/s
02:00
-21°C 0mm 71% 0cm -17°C 0mm 0.05kPa 17m/s
03:00
-21°C 0mm 67% 0cm -17°C 0mm 0.06kPa 18m/s
04:00
-22°C 0mm 62% 0cm -16°C 0mm 0.06kPa 17m/s
05:00
-23°C 0mm 56% 0cm -16°C 0mm 0.08kPa 17m/s
06:00
-23°C 0mm 56% 0cm -16°C 0mm 0.08kPa 18m/s
07:00
-23°C 0mm 57% 0cm -16°C 0mm 0.07kPa 18m/s
08:00
-23°C 0mm 61% 0cm -17°C 0mm 0.06kPa 14m/s
09:00
-23°C 0mm 63% 0cm -18°C 0mm 0.06kPa 10m/s
10:00
-23°C 0mm 58% 0cm -17°C 0mm 0.07kPa 12m/s
11:00
-23°C 0mm 56% 0cm -16°C 0mm 0.08kPa 12m/s
12:00
-23°C 0mm 53% 0cm -16°C 0mm 0.08kPa 13m/s
13:00
-23°C 0mm 50% 0cm -15°C 0mm 0.09kPa 14m/s
14:00
-24°C 0mm 47% 0cm -15°C 0mm 0.1kPa 14m/s
15:00
-25°C 0mm 44% 0cm -15°C 0mm 0.1kPa 14m/s
16:00
-25°C 0mm 44% 0cm -16°C 0mm 0.1kPa 14m/s
17:00
-27°C 0mm 40% 0cm -16°C 0mm 0.1kPa 14m/s
18:00
-28°C 0mm 38% 0cm -17°C 0mm 0.1kPa 16m/s
19:00
-29°C 0mm 34% 0cm -17°C 0mm 0.1kPa 17m/s
20:00
-31°C 0mm 30% 0cm -18°C 0mm 0.11kPa 17m/s
21:00
-32°C 0mm 26% 0cm -18°C 0mm 0.11kPa 17m/s
22:00
-33°C 0mm 24% 0cm -18°C 0mm 0.12kPa 17m/s
23:00
-34°C 0mm 23% 0cm -18°C 0mm 0.12kPa 16m/s
Mon, Jan 12 Sunrise 07:54 Sunset 16:46
24:00
-34°C 0mm 23% 0cm -18°C 0mm 0.12kPa 15m/s
01:00
-34°C 0mm 22% 0cm -17°C 0mm 0.12kPa 14m/s
02:00
-34°C 0mm 22% 0cm -17°C 0mm 0.12kPa 14m/s
03:00
-34°C 0mm 21% 0cm -17°C 0mm 0.13kPa 13m/s
04:00
-34°C 0mm 20% 0cm -17°C 0mm 0.13kPa 15m/s
05:00
-34°C 0mm 20% 0cm -17°C 0mm 0.13kPa 14m/s
06:00
-34°C 0mm 20% 0cm -16°C 0mm 0.14kPa 14m/s
07:00
-34°C 0mm 19% 0cm -16°C 0mm 0.14kPa 13m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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