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Rule Fog Hunter

Fog Hunter Forecast for Liesjärvi, Southern Finland

Liesjärven Kansallispuisto, Kanta-Häme, Finland

Narrow Kyynäränharju ridge separates two forest lakes at Liesjärvi, creating close parallel shorelines among mature spruce and pine woodland.

Currently

Real-time conditions
Fog Probability
33%
Dewpoint Spread0.8°C
Visibility24134 (Clear)
Relative Humidity95%
Wind Speed4.9m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Helsinki
fog weather icon
Next opportunity
Fog Potential at Dawn
Liesjärvi
Tomorrow · 03:00–04:00 · 1h window
Medium confidence
44%
🌫️Fog Probability75.8%
Dewpoint Spread: 0.1°C
Visibility: 24135 (Clear)
Relative Humidity: 99%
Wind Speed: 2.0m/s (calm conditions)
fog weather icon
Fog Potential at Sunrise
Liesjärvi
Tomorrow · 04:00–06:00
🌫️Fog Probability:75.8%
Low

How this forecast is evaluated

See which weather signals PhotoWeather uses to identify Fog Hunter conditions across Southern Finland. The requirements and hourly values below show how those signals apply at Liesjärvi.

Explore Fog Hunter conditions across Southern Finland →

Recorded match history

Completed PhotoWeather forecast matches recorded for this exact rule at Liesjärvi during the last 365 days.

Last 30 days
3
recorded matching windows · 36% average confidence
Last 90 days
5
recorded matching windows · 56% average confidence
Last 365 days
5
recorded matching windows · 56% average confidence

Only 5 completed matches are recorded in the last 365 days—insufficient history to identify a reliable typical start time or month.

These figures use completed PhotoWeather MatchEvent records from the previous 365 days only. They describe recorded forecast matches, not observations, climatological probability, or a guarantee of future conditions.

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92-hour requirements breakdown

When available, the detailed table below covers only the stated 92-hour horizon (typically 72–168 hours, depending on available hourly data). Opportunity records above span the next 14 days, so this table does not explain that entire 14-day period.

What passed or failed, hour by hour
3matching hours in the next 92 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Helsinki
Fog Probability
≥ 75.0%
Sat, Jul 25
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%
23:0018%
Sun, Jul 26
24:000%
01:000%
02:000%
03:000%
04:0033%
05:0033%
06:0018%
07:0026%
08:000%
09:000%
10:0026%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0062%
23:0062%
Mon, Jul 27
24:0064%
01:0064%
02:0066%
03:0076%
04:0076%
05:0076%
06:0042%
07:0035%
08:000%
09:000%
10:0034%
11:0017%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:0071%
23:0071%
Tue, Jul 28
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%
Wed, Jul 29
24:000%
01:000%
02:000%
03:000%
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
Sun, Jul 26 Sunrise 04:46 Sunset 22:14
05:00
0% 13°C 0mm 95% 0cm 0.85° 13°C 0mm 0.07kPa 24134m 12m/s 4.9m/s
06:00
0% 13°C 0.48mm 95% 0cm 6.5° 13°C 0.25mm 0.07kPa 17577m 13m/s 5.4m/s
07:00
0% 13°C 0.72mm 97% 0cm 13° 14°C 0.75mm 0.04kPa 11726m 13m/s 5.3m/s
08:00
0% 14°C 0.41mm 97% 0cm 20° 14°C 1.3mm 0.04kPa 17775m 11m/s 5.1m/s
09:00
0% 14°C 0.23mm 97% 0cm 28° 14°C 1.9mm 0.04kPa 23277m 13m/s 5.9m/s
10:00
0% 14°C 0mm 96% 0cm 35° 14°C 0.06mm 0.06kPa 24134m 12m/s 5.5m/s
11:00
0% 14°C 0mm 94% 0cm 41° 15°C 0.13mm 0.09kPa 24134m 12m/s 5.5m/s
12:00
0% 14°C 0mm 92% 0cm 46° 16°C 0.31mm 0.14kPa 16611m 12m/s 5.7m/s
13:00
0% 14°C 0.06mm 93% 0cm 48° 16°C 0.5mm 0.13kPa 22120m 12m/s 5.5m/s
14:00
0% 14°C 0.01mm 96% 0cm 48° 15°C 0.94mm 0.07kPa 17830m 12m/s 5.6m/s
15:00
0% 15°C 0mm 95% 0cm 46° 16°C 1.3mm 0.09kPa 20980m 12m/s 5.5m/s
16:00
0% 15°C 0mm 94% 0cm 41° 16°C 0.25mm 0.1kPa 20791m 13m/s 5.9m/s
17:00
0% 15°C 0mm 93% 0cm 35° 16°C 0.5mm 0.13kPa 19339m 13m/s 5.9m/s
18:00
0% 15°C 0mm 90% 0cm 28° 16°C 0.88mm 0.19kPa 21856m 12m/s 5.6m/s
19:00
0% 14°C 0mm 91% 0cm 21° 16°C 1.1mm 0.16kPa 14235m 11m/s 5.1m/s
20:00
0% 15°C 0mm 94% 0cm 13° 15°C 1.5mm 0.11kPa 18020m 10m/s 4.6m/s
21:00
0% 14°C 0.01mm 96% 0cm 6.6° 15°C 1.8mm 0.07kPa 18883m 9.4m/s 3.9m/s
22:00
0% 14°C 0mm 97% 0cm 0.9° 15°C 0.13mm 0.05kPa 16733m 9.1m/s 3.4m/s
23:00 ☾
1% 14°C 0mm 98% 0cm -4.4° 14°C 0.13mm 0.04kPa 24135m 8.5m/s 3.2m/s
Mon, Jul 27 Sunrise 04:46 Sunset 22:14
24:00 ☾
1% 13°C 0mm 99% 0cm -7.9° 14°C 0.19mm 0.02kPa 24135m 9.1m/s 3.1m/s
01:00 ☾
1% 13°C 0mm 99% 0cm -9.8° 13°C 0.19mm 0.02kPa 24135m 8.4m/s 2.7m/s
02:00 ☾
1% 13°C 0mm 99% 0cm -9.8° 13°C 0.19mm 0.01kPa 24135m 7.4m/s 2.2m/s
03:00 ☾
1% 12°C 0mm 99% 0cm -8° 12°C 0.19mm 0.01kPa 24135m 6.3m/s 2m/s
04:00 ☾
1% 12°C 0mm 99% 0cm -4.6° 12°C 0mm 0.01kPa 24135m 5.4m/s 2.1m/s
05:00
1% 13°C 0.01mm 99% 0cm 0.67° 13°C 0mm 0.01kPa 24135m 6m/s 1.9m/s
06:00
1% 13°C 0.4mm 100% 0cm 6.3° 13°C 0.25mm 0.01kPa 16932m 6.7m/s 2.1m/s
07:00
1% 14°C 0.66mm 99% 0cm 13° 14°C 0.75mm 0.02kPa 14732m 7.7m/s 2.5m/s
08:00
0% 14°C 0.62mm 98% 0cm 20° 14°C 1.3mm 0.03kPa 15690m 9.7m/s 3.3m/s
09:00
0% 14°C 0.57mm 98% 0cm 28° 14°C 2.1mm 0.03kPa 14575m 9.7m/s 3.5m/s
10:00
0% 14°C 0.02mm 97% 0cm 35° 15°C 0.19mm 0.04kPa 24134m 9.2m/s 3.7m/s
11:00
0% 15°C 0mm 96% 0cm 41° 16°C 0.38mm 0.08kPa 23939m 8.5m/s 3.7m/s
12:00
0% 16°C 0mm 92% 0cm 45° 17°C 0.69mm 0.16kPa 15169m 8.2m/s 4.1m/s
13:00
0% 16°C 0mm 93% 0cm 48° 17°C 1.2mm 0.14kPa 14276m 7.3m/s 3.7m/s
14:00
0% 15°C 0.06mm 95% 0cm 48° 16°C 1.7mm 0.08kPa 14650m 6.6m/s 3.1m/s
15:00
0% 15°C 0.73mm 98% 0cm 46° 15°C 2.3mm 0.04kPa 11115m 5.8m/s 2.4m/s
16:00
0% 15°C 1.9mm 99% 0cm 41° 15°C 1.4mm 0.02kPa 6724m 4.3m/s 1.4m/s
17:00
1% 15°C 2.3mm 99% 0cm 35° 15°C 3.9mm 0.02kPa 2370m 1.6m/s 0.74m/s
18:00
1% 15°C 1.3mm 99% 0cm 28° 15°C 5.8mm 0.02kPa 1058m 1.3m/s 0.89m/s
19:00
1% 15°C 0.25mm 98% 0cm 20° 15°C 6.4mm 0.03kPa 11301m 1.2m/s 0.61m/s
20:00
0% 14°C 0.02mm 98% 0cm 13° 15°C 6.6mm 0.03kPa 18674m 0.41m/s 0.41m/s
21:00
0% 14°C 0mm 98% 0cm 6.4° 14°C 6.7mm 0.03kPa 24134m 0.61m/s 0.54m/s
22:00
0% 14°C 0.03mm 98% 0cm 0.71° 14°C 0.13mm 0.03kPa 23411m 0.74m/s 0.73m/s
23:00 ☾
1% 14°C 0mm 98% 0cm -4.6° 14°C 0.19mm 0.03kPa 24134m 1m/s 0.98m/s
Tue, Jul 28 Sunrise 04:48 Sunset 22:11
24:00 ☾
1% 14°C 1.3mm 99% 0cm -8.2° 14°C 0.63mm 0.02kPa 8952m 2.4m/s 1.4m/s
01:00 ☾
1% 14°C 3mm 99% 0cm -10° 14°C 2.9mm 0.01kPa 5500m 4.9m/s 2m/s
02:00 ☾
1% 13°C 4mm 99% 0cm -10° 14°C 6.4mm 0.01kPa 4133m 6.1m/s 2.5m/s
03:00 ☾
1% 13°C 1.9mm 99% 0cm -8.3° 13°C 9.3mm 0.02kPa 7565m 6.7m/s 2.7m/s
04:00 ☾
3% 13°C 0.75mm 98% 0cm -4.8° 13°C 1.4mm 0.03kPa 14758m 7.3m/s 2.6m/s
05:00
6% 12°C 0.32mm 98% 0cm 0.49° 13°C 1.9mm 0.04kPa 22227m 7.4m/s 2.6m/s
06:00
8% 12°C 0.37mm 98% 0cm 6.1° 13°C 2.3mm 0.02kPa 13369m 7.7m/s 2.8m/s
07:00
9% 13°C 0.04mm 99% 0cm 13° 13°C 2.4mm 0.02kPa 24134m 7.7m/s 2.7m/s
08:00
10% 13°C 0mm 97% 0cm 20° 13°C 2.4mm 0.04kPa 24135m 7.9m/s 2.8m/s
09:00
11% 13°C 0mm 95% 0cm 27° 14°C 2.4mm 0.07kPa 24135m 8m/s 3m/s
10:00
19% 13°C 0mm 92% 0cm 34° 15°C 0.13mm 0.13kPa 20775m 7.8m/s 3.7m/s
11:00
28% 13°C 0mm 85% 0cm 41° 15°C 0.31mm 0.27kPa 22615m 8.1m/s 4.4m/s
12:00
36% 13°C 0mm 83% 0cm 45° 16°C 0.5mm 0.3kPa 18058m 8m/s 4.3m/s
13:00
33% 13°C 0mm 84% 0cm 48° 16°C 0.81mm 0.28kPa 19002m 8m/s 4.1m/s
14:00
31% 13°C 0mm 86% 0cm 48° 15°C 1.1mm 0.24kPa 17800m 9m/s 4.2m/s
15:00
28% 12°C 0mm 86% 0cm 45° 15°C 1.3mm 0.23kPa 24135m 10m/s 4.4m/s
16:00
25% 11°C 0mm 84% 0cm 41° 14°C 0.83mm 0.25kPa 24135m 11m/s 4.4m/s
17:00
21% 10°C 0mm 82% 0cm 35° 13°C 0.42mm 0.28kPa 24135m 12m/s 4.3m/s
18:00
18% 9.2°C 0mm 80% 0cm 28° 13°C 0mm 0.29kPa 24135m 12m/s 4.2m/s
19:00
19% 9.3°C 0mm 83% 0cm 20° 12°C 0mm 0.25kPa 24135m 12m/s 4.3m/s
20:00
19% 9.4°C 0mm 85% 0cm 13° 12°C 0mm 0.2kPa 24135m 12m/s 4.3m/s
21:00
20% 9.5°C 0mm 88% 0cm 6.2° 11°C 0mm 0.16kPa 24135m 12m/s 4.4m/s
22:00
28% 9.6°C 0mm 89% 0cm 0.53° 11°C 0mm 0.15kPa 24135m 12m/s 4.3m/s
23:00 ☾
37% 9.7°C 0mm 90% 0cm -4.8° 11°C 0mm 0.14kPa 24135m 12m/s 4.3m/s
Wed, Jul 29 Sunrise 04:51 Sunset 22:09
24:00 ☾
45% 9.9°C 0mm 90% 0cm -8.4° 11°C 0mm 0.13kPa 24135m 12m/s 4.2m/s
01:00 ☾
44% 9.8°C 0mm 84% 0cm -10° 13°C 0mm 0.24kPa 24135m 11m/s 4.7m/s
02:00 ☾
42% 9.6°C 0mm 77% 0cm -10° 14°C 0mm 0.36kPa 24135m 10m/s 5.1m/s
03:00 ☾
41% 9.4°C 0mm 70% 0cm -8.5° 15°C 0mm 0.51kPa 24135m 9.3m/s 5.6m/s
04:00 ☾
41% 9.2°C 0mm 63% 0cm -5° 16°C 0mm 0.67kPa 24135m 8.9m/s 5.5m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

How this forecast is made

Opportunities are threshold-based signals: PhotoWeather checks whether forecast conditions match the rules for a photography scenario. They are planning guidance, not guarantees. Forecasts can change as new model runs arrive, and confidence generally decreases farther into the forecast horizon, so recheck conditions before travelling.

The weather forecast foundation comes through Open-Meteo , which aggregates models from weather agencies. PhotoWeather applies condition-specific thresholds and derived calculations; not every condition uses every model or data input.

How opportunities work → Weather data sources →
Forecast generated

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