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Rule Fog Hunter

Ivalo - Fog Hunter - Finnish Lapland

Ivalo, Lapland, Finland

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Dewpoint Spread1.8°C
Visibility24134 (Clear)
Relative Humidity88%
Wind Speed2.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki
fog weather icon
Next opportunity
Dense Fog at Sunset
Ivalo
Thu, Apr 23 · 20:00–23:00 · 3h window
Medium confidence
41%
🌫️Fog Probability60.7-100%
Dewpoint Spread: 0.2°C
Visibility: 60 (Dense fog)
Relative Humidity: 99%
Wind Speed: 1.6m/s (calm conditions)
fog weather icon
Dense Fog at Dusk
Ivalo
Thu, Apr 23 · 23:00–24:00
🌫️Fog Probability:100%
High
fog weather icon
Dense Fog at Sunset
Ivalo
Tue, Apr 28 · 20:00–24:00
🌫️Fog Probability:60.1-100%
Medium

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72-hour requirements breakdown

What passed or failed, hour by hour
4matching hours in the next 86 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 60.0%
Tue, Apr 21
07:0043%
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%
Wed, Apr 22
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%
Thu, Apr 23
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:0021%
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%
20:0065%
21:0061%
22:00100%
23:00100%
Fri, Apr 24
24:0057%
01:0036%
02:0024%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:0018%
10:0016%
11:0012%
12:0013%
13:0016%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
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/Helsinki
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
Tue, Apr 21 Sunrise 04:48 Sunset 21:31
22:00
0% 0.3°C 0mm 88% 0cm -2.6° 2.1°C 0mm 0.09kPa 24134m 4m/s 2.1m/s
23:00
1% -0.9°C 0mm 92% 0cm -6.1° 0.27°C 0mm 0.05kPa 24134m 1.4m/s 1.5m/s
Wed, Apr 22 Sunrise 04:48 Sunset 21:31
24:00
1% -0.5°C 0mm 92% 0cm -8.3° 0.66°C 0mm 0.05kPa 24134m 2.8m/s 2.3m/s
01:00
1% -0.1°C 0.14mm 89% 0cm -9.2° 1.6°C 0.06mm 0.08kPa 23196m 11m/s 3.8m/s
02:00
0% 1.3°C 0.03mm 87% 0cm -8.7° 3.2°C 0.25mm 0.1kPa 11696m 16m/s 8.2m/s
03:00
0% -0.3°C 0.01mm 80% 0.11cm -6.8° 2.8°C 0.38mm 0.15kPa 6536m 15m/s 7.7m/s
04:00
3% -2.1°C 0mm 76% 0.04cm -3.6° 1.7°C 0.13mm 0.17kPa 24135m 16m/s 7.5m/s
05:00
7% -3.8°C 0mm 72% 0cm 0.83° 0.63°C 0.13mm 0.18kPa 24134m 17m/s 7.9m/s
06:00
10% -4.2°C 0mm 71% 0cm 5.4° 0.45°C 0.13mm 0.18kPa 24135m 18m/s 8.3m/s
07:00
7% -4.3°C 0mm 69% 0cm 11° 0.71°C 0.13mm 0.2kPa 24134m 19m/s 11m/s
08:00
4% -2.7°C 0mm 78% 0.07cm 16° 0.71°C 0.13mm 0.14kPa 12495m 20m/s 11m/s
09:00
1% -3.6°C 0mm 77% 0.14cm 21° -0.08°C 0.19mm 0.14kPa 4187m 19m/s 9.8m/s
10:00
1% -5.6°C 0mm 72% 0.05cm 26° -1.1°C 0.13mm 0.16kPa 24134m 20m/s 9.5m/s
11:00
0% -7.1°C 0mm 65% 0cm 30° -1.4°C 0.19mm 0.19kPa 24134m 17m/s 11m/s
12:00
0% -7.6°C 0mm 62% 0cm 33° -1.2°C 0.19mm 0.21kPa 24135m 14m/s 10m/s
13:00
0% -7.3°C 0mm 62% 0cm 34° -0.89°C 0.19mm 0.22kPa 24134m 14m/s 9.8m/s
14:00
0% -7°C 0mm 62% 0cm 33° -0.67°C 0.19mm 0.22kPa 24134m 14m/s 9.8m/s
15:00
0% -6.8°C 0mm 62% 0cm 31° -0.49°C 0.19mm 0.22kPa 24135m 13m/s 9.9m/s
16:00
0% -6.8°C 0mm 62% 0.03cm 27° -0.47°C 0mm 0.22kPa 24135m 13m/s 9.6m/s
17:00
0% -6.4°C 0mm 65% 0.07cm 23° -0.65°C 0.06mm 0.21kPa 24135m 14m/s 8.9m/s
18:00
0% -5.9°C 0mm 68% 0.08cm 18° -0.73°C 0.13mm 0.18kPa 24135m 14m/s 8.3m/s
19:00
0% -5.6°C 0mm 71% 0.07cm 12° -0.99°C 0.19mm 0.17kPa 24135m 14m/s 8.3m/s
20:00
0% -5.9°C 0mm 72% 0cm -1.6°C 0.25mm 0.15kPa 24134m 15m/s 8.2m/s
21:00
0% -6.1°C 0mm 74% 0cm 2.2° -2°C 0.25mm 0.14kPa 24134m 15m/s 7.2m/s
22:00
0% -5.7°C 0mm 77% 0cm -2.3° -2.2°C 0mm 0.12kPa 24134m 14m/s 6.5m/s
23:00
0% -5.4°C 0mm 78% 0cm -5.7° -2.1°C 0mm 0.11kPa 24134m 14m/s 6m/s
Thu, Apr 23 Sunrise 04:43 Sunset 21:36
24:00
0% -5.2°C 0mm 79% 0cm -8° -2.1°C 0mm 0.11kPa 24135m 13m/s 5.4m/s
01:00
0% -5.1°C 0mm 80% 0cm -8.9° -2.1°C 0mm 0.11kPa 24135m 13m/s 5.1m/s
02:00
0% -5°C 0mm 78% 0cm -8.3° -1.7°C 0mm 0.12kPa 24135m 12m/s 4.8m/s
03:00
0% -4.9°C 0mm 80% 0cm -6.4° -2°C 0mm 0.1kPa 24134m 9.2m/s 3.9m/s
04:00
0% -3.8°C 0.01mm 82% 0cm -3.3° -1.2°C 0mm 0.1kPa 16001m 11m/s 4.3m/s
05:00
0% -2.8°C 0.03mm 83% 0.05cm 1.1° -0.31°C 0.06mm 0.1kPa 11689m 12m/s 5.2m/s
06:00
0% -1.6°C 0.1mm 92% 0.12cm 5.7° -0.47°C 0.13mm 0.05kPa 915m 13m/s 4.5m/s
07:00
0% -2°C 0.04mm 84% 0.05cm 11° 0.31°C 0.19mm 0.1kPa 12879m 13m/s 6.2m/s
08:00
0% -2.4°C 0.01mm 80% 0cm 16° 0.73°C 0.25mm 0.13kPa 24135m 13m/s 6.5m/s
09:00
0% -2.1°C 0.01mm 79% 0.05cm 22° 1.2°C 0.25mm 0.14kPa 11964m 12m/s 6.5m/s
10:00
0% -1.8°C 0.01mm 79% 0.08cm 26° 1.5°C 0.06mm 0.14kPa 10267m 11m/s 6.3m/s
11:00
0% -1.6°C 0.01mm 78% 0.07cm 30° 1.8°C 0.13mm 0.15kPa 10914m 11m/s 6.5m/s
12:00
0% -1.7°C 0.01mm 77% 0.05cm 33° 2°C 0.19mm 0.16kPa 15241m 11m/s 6.1m/s
13:00
0% -2°C 0mm 73% 0.03cm 34° 2.3°C 0.25mm 0.19kPa 22561m 10m/s 6.3m/s
14:00
0% -2.4°C 0mm 71% 0cm 33° 2.3°C 0.25mm 0.21kPa 24135m 9.4m/s 5.9m/s
15:00
0% -2.5°C 0mm 70% 0cm 31° 2.4°C 0.25mm 0.22kPa 24134m 8.7m/s 5.1m/s
16:00
0% -2.5°C 0mm 70% 0cm 28° 2.4°C 0mm 0.22kPa 24135m 7.5m/s 4.2m/s
17:00
0% -2.1°C 0mm 73% 0cm 23° 2.2°C 0mm 0.19kPa 24135m 6.9m/s 3.9m/s
18:00
0% -1.2°C 0mm 80% 0cm 18° 1.9°C 0mm 0.14kPa 22841m 5.4m/s 3m/s
19:00
0% 0°C 0.03mm 90% 0.04cm 13° 1.4°C 0mm 0.07kPa 21347m 4m/s 2m/s
20:00
0% 0.8°C 0.24mm 99% 0.25cm 7.3° 0.9°C 0.13mm 0kPa 25m 3.6m/s 1.8m/s
21:00
0% 0.7°C 0.14mm 98% 0.16cm 2.5° 0.9°C 0.38mm 0.01kPa 41m 5.8m/s 2.3m/s
22:00
3% 0.5°C 0.01mm 99% 0cm -1.9° 0.72°C 0.13mm 0.01kPa 60m 4.2m/s 1.6m/s
23:00
5% 0.3°C 0mm 98% 0cm -5.4° 0.55°C 0.13mm 0.01kPa 117m 4.3m/s 2.1m/s
Fri, Apr 24 Sunrise 04:39 Sunset 21:40
24:00
8% -0.6°C 0mm 96% 0cm -7.6° -0.006°C 0.13mm 0.03kPa 23793m 6.8m/s 2.2m/s
01:00
7% -1°C 0.33mm 96% 0.33cm -8.5° -0.52°C 0.19mm 0.02kPa 578m 8.5m/s 2.9m/s
02:00
6% -0.7°C 0.01mm 94% 0cm -8° 0.25°C 0.44mm 0.04kPa 13880m 6.1m/s 2.1m/s
03:00
5% -1.3°C 0.13mm 86% 0.13cm -6.1° 0.69°C 0.5mm 0.09kPa 4971m 11m/s 4.3m/s
04:00
10% -2.6°C 0.09mm 78% 0.09cm -2.9° 0.73°C 0.33mm 0.14kPa 11359m 9.1m/s 4.1m/s
05:00
14% -4°C 0.04mm 70% 0.04cm 1.4° 0.76°C 0.17mm 0.19kPa 17747m 7.5m/s 3.8m/s
06:00
19% -5.5°C 0mm 62% 0cm 6.1° 0.79°C 0mm 0.24kPa 24135m 5.8m/s 3.6m/s
07:00
15% -4.5°C 0.02mm 69% 0.04cm 11° 0.5°C 0.02mm 0.2kPa 17016m 4.6m/s 3m/s
08:00
10% -3.6°C 0.04mm 75% 0.08cm 17° 0.21°C 0.04mm 0.15kPa 9898m 3.4m/s 2.4m/s
09:00
6% -2.8°C 0.06mm 82% 0.12cm 22° -0.08°C 0.06mm 0.11kPa 2779m 2.2m/s 1.8m/s
10:00
5% -2.4°C 0.08mm 85% 0.13cm 27° -0.15°C 0.19mm 0.09kPa 2120m 2m/s 1.6m/s
11:00
4% -2.1°C 0.09mm 87% 0.14cm 31° -0.22°C 0.31mm 0.08kPa 1462m 1.8m/s 1.5m/s
12:00
3% -1.8°C 0.11mm 90% 0.15cm 33° -0.29°C 0.44mm 0.06kPa 803m 1.6m/s 1.4m/s
13:00
3% -1.9°C 0.25mm 92% 0.28cm 34° -0.81°C 0.79mm 0.05kPa 587m 3.1m/s 2.2m/s
14:00
2% -2.1°C 0.4mm 94% 0.41cm 34° -1.3°C 1.1mm 0.03kPa 370m 4.7m/s 3.1m/s
15:00
2% -2.3°C 0.54mm 96% 0.54cm 31° -1.8°C 1.5mm 0.02kPa 154m 6.2m/s 3.9m/s
16:00
1% -2.7°C 0.6mm 96% 0.6cm 28° -2.2°C 1.7mm 0.02kPa 157m 7.2m/s 4.4m/s
17:00
1% -3.2°C 0.66mm 96% 0.67cm 23° -2.5°C 1.8mm 0.02kPa 161m 8.1m/s 5m/s
18:00
0% -3.6°C 0.72mm 95% 0.73cm 18° -2.9°C 2mm 0.02kPa 165m 9m/s 5.5m/s
19:00
0% -4.4°C 0.54mm 92% 0.54cm 13° -3.3°C 2.4mm 0.04kPa 2108m 9.2m/s 5.4m/s
20:00
0% -5.3°C 0.35mm 88% 0.35cm 7.6° -3.7°C 2.8mm 0.05kPa 4052m 9.3m/s 5.4m/s
21:00
0% -6.2°C 0.17mm 85% 0.17cm 2.8° -4°C 3.2mm 0.07kPa 5995m 9.5m/s 5.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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