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Rule Fog Hunter

Fog Hunter Forecast for Alkmaar, The Netherlands

Alkmaar, North Holland, The Netherlands

The Waag, stepped-gable houses and canals frame the historic cheese-market square, with bridges creating clear foreground lines.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread6.8°C
Visibility24135 (Clear)
Relative Humidity64%
Wind Speed5.5m/s (moderate winds)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/Amsterdam

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (85-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

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

Explore Fog Hunter conditions across The Netherlands →

Recorded match history

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

Last 30 days
0
recorded matching windows
Last 90 days
0
recorded matching windows
Last 365 days
4
recorded matching windows · 85% average confidence

Only 4 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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85-hour requirements breakdown

When available, the detailed table below covers only the stated 85-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
0matching hours in the next 85 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/Amsterdam
Fog Probability
≥ 75.0%
Sat, Aug 22
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%
Sun, Aug 23
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%
Mon, Aug 24
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%
Tue, Aug 25
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%
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/Amsterdam
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
Sat, Aug 22 Sunrise 06:35 Sunset 20:51
22:00 ☾
42% 8.7°C 0mm 64% 0cm -10° 16°C 0.06mm 0.64kPa 24135m 7.9m/s 5.5m/s
23:00 ☾
33% 9.2°C 0mm 67% 0cm -17° 15°C 0.13mm 0.57kPa 24135m 8m/s 5.4m/s
Sun, Aug 23 Sunrise 06:35 Sunset 20:51
24:00 ☾
30% 9.4°C 0mm 69% 0cm -22° 15°C 0.25mm 0.54kPa 24134m 8.1m/s 5.3m/s
01:00 ☾
28% 9.5°C 0mm 71% 0cm -25° 15°C 0.31mm 0.49kPa 24134m 7.9m/s 5m/s
02:00 ☾
25% 9.2°C 0mm 73% 0cm -26° 14°C 0.44mm 0.43kPa 24134m 8.1m/s 4.6m/s
03:00 ☾
22% 8.5°C 0.01mm 67% 0cm -24° 15°C 0.06mm 0.55kPa 24134m 8.2m/s 5.4m/s
04:00 ☾
18% 8.8°C 0mm 66% 0cm -20° 15°C 0.06mm 0.57kPa 24134m 7.9m/s 5.1m/s
05:00 ☾
15% 8.9°C 0mm 68% 0cm -13° 15°C 0.13mm 0.55kPa 24134m 8.1m/s 5.3m/s
06:00 ☾
11% 8.9°C 0mm 68% 0cm -5.8° 15°C 0.13mm 0.55kPa 24134m 8m/s 5.3m/s
07:00
7% 9.1°C 0.02mm 68% 0cm 2.8° 15°C 0.19mm 0.55kPa 24135m 7.7m/s 4.9m/s
08:00
3% 8.8°C 0.01mm 66% 0cm 12° 15°C 0.19mm 0.6kPa 24135m 7.2m/s 5.1m/s
09:00
2% 9.8°C 0mm 69% 0cm 21° 15°C 0.06mm 0.54kPa 24135m 6.8m/s 5m/s
10:00
2% 9.7°C 0mm 65% 0cm 29° 16°C 0.19mm 0.64kPa 24134m 6.8m/s 5.7m/s
11:00
1% 9.6°C 0mm 63% 0cm 37° 17°C 0.25mm 0.71kPa 24134m 6.4m/s 5.3m/s
12:00
1% 9.5°C 0mm 61% 0cm 44° 17°C 0.31mm 0.76kPa 24134m 6.2m/s 5.1m/s
13:00
2% 10°C 0mm 60% 0cm 48° 18°C 0.38mm 0.81kPa 24135m 6.4m/s 5.3m/s
14:00
2% 9.9°C 0mm 58% 0cm 49° 18°C 0.56mm 0.88kPa 24135m 6.8m/s 6.5m/s
15:00
9% 9.7°C 0mm 55% 0cm 46° 19°C 0.06mm 0.99kPa 24135m 6.9m/s 6.8m/s
16:00
15% 10°C 0mm 56% 0cm 40° 19°C 0.13mm 0.95kPa 24134m 6.9m/s 6.5m/s
17:00
22% 10°C 0mm 60% 0cm 33° 18°C 0.25mm 0.85kPa 24135m 6.2m/s 5.8m/s
18:00
21% 10°C 0mm 60% 0cm 25° 18°C 0.31mm 0.82kPa 24135m 5.6m/s 5.3m/s
19:00
21% 10°C 0mm 61% 0cm 16° 18°C 0.38mm 0.8kPa 24134m 5.4m/s 4.9m/s
20:00
20% 10°C 0mm 66% 0cm 6.6° 17°C 0.38mm 0.65kPa 24135m 6m/s 4.1m/s
21:00 ☾
32% 10°C 0mm 74% 0cm -2.1° 15°C 0mm 0.43kPa 24134m 5.1m/s 3.4m/s
22:00 ☾
44% 10°C 0mm 75% 0cm -10° 14°C 0mm 0.41kPa 24134m 4.9m/s 3.3m/s
23:00 ☾
56% 10°C 0mm 76% 0cm -17° 14°C 0mm 0.39kPa 24134m 4.4m/s 3.2m/s
Mon, Aug 24 Sunrise 06:36 Sunset 20:49
24:00 ☾
57% 10°C 0mm 78% 0cm -22° 14°C 0mm 0.35kPa 24134m 4.1m/s 3m/s
01:00 ☾
59% 11°C 0mm 81% 0cm -25° 14°C 0mm 0.31kPa 24134m 3.2m/s 2.6m/s
02:00 ☾
60% 11°C 0mm 82% 0cm -26° 14°C 0mm 0.28kPa 24134m 2.7m/s 2.3m/s
03:00 ☾
57% 11°C 0mm 84% 0cm -24° 14°C 0mm 0.25kPa 24134m 2.3m/s 2m/s
04:00 ☾
53% 11°C 0mm 85% 0cm -20° 14°C 0mm 0.24kPa 24134m 2.1m/s 1.8m/s
05:00 ☾
50% 11°C 0mm 85% 0cm -14° 14°C 0.06mm 0.24kPa 24135m 2.1m/s 1.9m/s
06:00 ☾
49% 11°C 0mm 85% 0cm -6.1° 13°C 0.06mm 0.23kPa 24134m 1.7m/s 1.5m/s
07:00
47% 11°C 0mm 86% 0cm 2.6° 13°C 0.06mm 0.22kPa 24134m 1.3m/s 1.2m/s
08:00
46% 12°C 0mm 79% 0cm 11° 15°C 0.06mm 0.36kPa 24134m 1.5m/s 1.2m/s
09:00
54% 12°C 0mm 69% 0cm 20° 18°C 0mm 0.62kPa 24134m 3.3m/s 2.4m/s
10:00
62% 12°C 0mm 63% 0cm 29° 19°C 0.06mm 0.8kPa 24135m 4.2m/s 3.9m/s
11:00
70% 11°C 0mm 59% 0cm 37° 20°C 0.06mm 0.93kPa 24135m 4m/s 4.2m/s
12:00
72% 11°C 0mm 56% 0cm 43° 20°C 0.13mm 1.1kPa 24134m 3.5m/s 4m/s
13:00
74% 10°C 0mm 54% 0cm 47° 20°C 0.13mm 1.1kPa 24134m 3.4m/s 3.6m/s
14:00
76% 10°C 0mm 52% 0cm 48° 20°C 0.13mm 1.1kPa 24134m 3.7m/s 3.5m/s
15:00
78% 10°C 0mm 50% 0cm 46° 21°C 0mm 1.2kPa 24134m 5m/s 4.8m/s
16:00
79% 11°C 0mm 50% 0cm 40° 22°C 0mm 1.3kPa 24135m 5.8m/s 5.6m/s
17:00
81% 11°C 0mm 55% 0cm 33° 21°C 0mm 1.1kPa 24134m 6m/s 6.1m/s
18:00
82% 12°C 0mm 60% 0cm 24° 20°C 0mm 0.91kPa 24135m 5.9m/s 6.3m/s
19:00
84% 12°C 0mm 65% 0cm 15° 19°C 0mm 0.76kPa 24134m 7.7m/s 6.7m/s
20:00
85% 13°C 0mm 72% 0cm 6.3° 18°C 0mm 0.56kPa 24135m 10m/s 7m/s
21:00 ☾
84% 13°C 0mm 77% 0cm -2.5° 17°C 0mm 0.44kPa 24134m 11m/s 7.1m/s
22:00 ☾
83% 13°C 0mm 80% 0cm -11° 16°C 0mm 0.37kPa 24134m 11m/s 6.6m/s
23:00 ☾
82% 13°C 0mm 82% 0cm -18° 16°C 0mm 0.32kPa 24134m 11m/s 6m/s
Tue, Aug 25 Sunrise 06:38 Sunset 20:47
24:00 ☾
80% 13°C 0mm 86% 0cm -23° 15°C 0mm 0.23kPa 24135m 11m/s 5.7m/s
01:00 ☾
79% 12°C 0mm 85% 0cm -26° 15°C 0mm 0.25kPa 24134m 10m/s 5.2m/s
02:00 ☾
77% 12°C 0mm 84% 0cm -26° 14°C 0mm 0.26kPa 24134m 10m/s 5.1m/s
03:00 ☾
68% 12°C 0mm 75% 0cm -24° 16°C 0mm 0.45kPa 24134m 10m/s 6.3m/s
04:00 ☾
59% 12°C 0mm 67% 0cm -20° 18°C 0mm 0.67kPa 24134m 11m/s 7.5m/s
05:00 ☾
50% 11°C 0mm 58% 0cm -14° 20°C 0mm 0.95kPa 24135m 11m/s 8.7m/s
06:00 ☾
47% 11°C 0mm 55% 0cm -6.3° 21°C 0mm 1.1kPa 24135m 11m/s 8.5m/s
07:00
44% 11°C 0mm 51% 0cm 2.4° 22°C 0mm 1.3kPa 24135m 10m/s 8.2m/s
08:00
41% 11°C 0mm 47% 0cm 11° 23°C 0mm 1.5kPa 24135m 9.9m/s 7.9m/s
09:00
42% 11°C 0mm 46% 0cm 20° 23°C 0mm 1.5kPa 24135m 9.1m/s 7.3m/s
10:00
42% 11°C 0mm 46% 0cm 29° 24°C 0mm 1.6kPa 24135m 8.3m/s 6.7m/s
11:00
43% 11°C 0mm 45% 0cm 37° 24°C 0mm 1.7kPa 24135m 7.5m/s 6.1m/s
12:00
41% 12°C 0mm 47% 0cm 43° 24°C 0mm 1.6kPa 24135m 7.6m/s 6.1m/s
13:00
38% 13°C 0mm 50% 0cm 47° 24°C 0mm 1.4kPa 24135m 7.7m/s 6.1m/s
14:00
36% 13°C 0mm 53% 0cm 48° 23°C 0mm 1.3kPa 24135m 7.8m/s 6m/s
15:00
32% 13°C 0mm 55% 0cm 45° 23°C 0mm 1.3kPa 24135m 8.2m/s 6.2m/s
16:00
28% 13°C 0mm 56% 0cm 40° 22°C 0mm 1.2kPa 24135m 8.5m/s 6.4m/s
17:00
24% 13°C 0mm 58% 0cm 32° 22°C 0mm 1.1kPa 24135m 8.8m/s 6.6m/s
18:00
22% 13°C 0mm 60% 0cm 24° 21°C 0mm 1kPa 24135m 9.6m/s 6.5m/s
19:00
19% 13°C 0mm 62% 0cm 15° 21°C 0mm 0.92kPa 24135m 10m/s 6.4m/s
20:00
17% 13°C 0mm 64% 0cm 6° 20°C 0mm 0.84kPa 24135m 11m/s 6.3m/s
21:00 ☾
16% 13°C 0mm 66% 0cm -2.8° 20°C 0.04mm 0.78kPa 21973m 11m/s 6.4m/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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