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Rule Fog Hunter

Fog Hunter Forecast for Isle of Lewis, Scotland

Stornoway, Scotland, United Kingdom

Lewis offers the Callanish standing stones, peat moorland, Atlantic beaches and rocky coast, with low cloud and winter darkness supporting moody studies.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.3°C
Visibility20141 (Clear)
Relative Humidity92%
Wind Speed3.0m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London

No opportunities in the next 14 days

See which requirements block the most forecast hours below.

Most common blockers (92-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

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

Explore Fog Hunter conditions across Scotland →

Recorded match history

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

Last 30 days
4
recorded matching windows · 69% average confidence
Last 90 days
4
recorded matching windows · 69% average confidence
Last 365 days
4
recorded matching windows · 69% 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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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
0matching hours in the next 92 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Sat, Jul 25
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%
Sun, Jul 26
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, Jul 27
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, 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%
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/London
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 05:05 Sunset 21:57
03:00 ☾
0% 10°C 0.03mm 92% 0cm -10° 12°C 0.19mm 0.11kPa 20141m 5.6m/s 3m/s
04:00 ☾
0% 11°C 0.47mm 93% 0cm -6.5° 12°C 0.44mm 0.09kPa 13656m 4.9m/s 2.6m/s
05:00 ☾
0% 11°C 0.39mm 95% 0cm -1.1° 11°C 1.3mm 0.06kPa 13481m 3.8m/s 1.9m/s
06:00
0% 11°C 0.01mm 95% 0cm 5.2° 11°C 1.6mm 0.06kPa 23831m 2m/s 1.2m/s
07:00
0% 11°C 0mm 94% 0cm 12° 12°C 1.6mm 0.08kPa 23537m 2.4m/s 1.3m/s
08:00
3% 10°C 0mm 91% 0cm 20° 12°C 0.06mm 0.13kPa 23966m 2.5m/s 1.8m/s
09:00
5% 9.8°C 0.01mm 87% 0cm 28° 12°C 0.13mm 0.18kPa 24135m 1.9m/s 1.6m/s
10:00
8% 9.5°C 0.02mm 84% 0cm 36° 12°C 0.19mm 0.23kPa 24135m 1m/s 0.68m/s
11:00
9% 9.5°C 0.01mm 80% 0cm 42° 13°C 0.19mm 0.3kPa 24134m 1.4m/s 0.74m/s
12:00
11% 9.6°C 0mm 75% 0cm 48° 14°C 0.25mm 0.39kPa 24134m 2.5m/s 1.6m/s
13:00
12% 9.3°C 0mm 75% 0cm 51° 14°C 0.31mm 0.38kPa 24134m 2.9m/s 2.2m/s
14:00
20% 9°C 0mm 76% 0cm 51° 13°C 0mm 0.36kPa 24134m 3.1m/s 2.7m/s
15:00
27% 8.7°C 0mm 75% 0cm 48° 13°C 0.06mm 0.38kPa 24135m 3.6m/s 3.3m/s
16:00
35% 8.4°C 0mm 68% 0cm 43° 14°C 0.06mm 0.51kPa 24135m 3.8m/s 3.4m/s
17:00
41% 8.1°C 0mm 65% 0cm 36° 15°C 0.06mm 0.59kPa 24135m 4.6m/s 4.2m/s
18:00
46% 8°C 0mm 66% 0cm 28° 14°C 0.06mm 0.54kPa 24135m 4.7m/s 4.5m/s
19:00
52% 7.9°C 0mm 69% 0cm 21° 13°C 0.06mm 0.48kPa 24134m 4.2m/s 3.9m/s
20:00
67% 7.9°C 0mm 73% 0cm 13° 13°C 0mm 0.4kPa 24134m 3.6m/s 3.1m/s
21:00
81% 8.2°C 0mm 80% 0cm 5.6° 11°C 0mm 0.27kPa 24134m 3.6m/s 2.4m/s
22:00 ☾
96% 7.5°C 0mm 85% 0cm -0.74° 9.9°C 0mm 0.18kPa 24135m 2.2m/s 2.1m/s
23:00 ☾
93% 7.2°C 0mm 87% 0cm -6.3° 9.3°C 0mm 0.15kPa 24134m 1.9m/s 1.8m/s
Mon, Jul 27 Sunrise 05:05 Sunset 21:57
24:00 ☾
90% 7.2°C 0mm 89% 0cm -10° 8.9°C 0mm 0.13kPa 24135m 1.7m/s 1.6m/s
01:00 ☾
87% 7.1°C 0mm 90% 0cm -12° 8.6°C 0mm 0.11kPa 24134m 1.5m/s 1.6m/s
02:00 ☾
60% 7.1°C 0mm 91% 0cm -12° 8.5°C 0mm 0.1kPa 24135m 1.6m/s 1.6m/s
03:00 ☾
34% 7.3°C 0mm 89% 0cm -10° 9.1°C 0mm 0.13kPa 24135m 2m/s 1.8m/s
04:00 ☾
7% 7.9°C 0.04mm 84% 0cm -6.7° 10°C 0mm 0.2kPa 24135m 3.7m/s 2.2m/s
05:00 ☾
5% 9°C 0.62mm 90% 0cm -1.3° 11°C 0.38mm 0.13kPa 15274m 3.9m/s 2.3m/s
06:00
2% 11°C 0.03mm 93% 0cm 5° 12°C 0.94mm 0.1kPa 17060m 11m/s 4.8m/s
07:00
0% 11°C 0mm 91% 0cm 12° 12°C 1mm 0.13kPa 24134m 11m/s 6.7m/s
08:00
0% 11°C 0mm 88% 0cm 20° 13°C 0.13mm 0.18kPa 23027m 9.2m/s 6m/s
09:00
0% 11°C 0mm 86% 0cm 28° 13°C 0.31mm 0.22kPa 19885m 8.7m/s 5.8m/s
10:00
0% 11°C 0mm 84% 0cm 35° 13°C 0.5mm 0.25kPa 23664m 8.5m/s 5.9m/s
11:00
0% 10°C 0mm 77% 0cm 42° 14°C 0.63mm 0.37kPa 22354m 8.4m/s 6.5m/s
12:00
0% 10°C 0mm 75% 0cm 47° 14°C 0.75mm 0.42kPa 24135m 8.8m/s 7.2m/s
13:00
0% 9.9°C 0mm 69% 0cm 51° 16°C 0.81mm 0.55kPa 24134m 8.6m/s 7.2m/s
14:00
5% 9.8°C 0mm 67% 0cm 51° 16°C 0.06mm 0.59kPa 24135m 8.3m/s 7.1m/s
15:00
11% 9.6°C 0mm 66% 0cm 48° 16°C 0.06mm 0.63kPa 24135m 7.9m/s 6.8m/s
16:00
16% 9.3°C 0mm 64% 0cm 43° 16°C 0.06mm 0.65kPa 24134m 7.2m/s 6.2m/s
17:00
12% 9.2°C 0mm 64% 0cm 36° 16°C 0.06mm 0.64kPa 24135m 6.9m/s 5.9m/s
18:00
9% 9.1°C 0mm 66% 0cm 28° 15°C 0.06mm 0.6kPa 24134m 6.2m/s 5.2m/s
19:00
5% 9.5°C 0mm 69% 0cm 20° 15°C 0.06mm 0.52kPa 24135m 6m/s 4.8m/s
20:00
4% 10°C 0mm 76% 0cm 13° 14°C 0mm 0.4kPa 24134m 6.1m/s 4m/s
21:00
3% 10°C 0mm 82% 0cm 5.4° 13°C 0mm 0.27kPa 24134m 4.9m/s 2.8m/s
22:00 ☾
2% 9.9°C 0mm 88% 0cm -1° 12°C 0mm 0.17kPa 24134m 2.4m/s 2.2m/s
23:00 ☾
2% 10°C 0mm 84% 0cm -6.6° 13°C 0mm 0.23kPa 24135m 3.8m/s 2m/s
Tue, Jul 28 Sunrise 05:07 Sunset 21:55
24:00 ☾
1% 10°C 0mm 85% 0cm -10° 13°C 0mm 0.22kPa 24135m 3.4m/s 1.8m/s
01:00 ☾
1% 10°C 0mm 86% 0cm -12° 13°C 0mm 0.2kPa 24135m 2.2m/s 1.6m/s
02:00 ☾
1% 11°C 0.01mm 87% 0cm -13° 13°C 0mm 0.19kPa 24134m 2m/s 1.6m/s
03:00 ☾
0% 11°C 0.01mm 88% 0cm -11° 13°C 0mm 0.18kPa 24134m 1.5m/s 1.5m/s
04:00 ☾
0% 11°C 0mm 88% 0cm -6.9° 13°C 0mm 0.17kPa 24135m 1.4m/s 1.4m/s
05:00 ☾
0% 11°C 0mm 89% 0cm -1.5° 13°C 0mm 0.16kPa 24134m 1.5m/s 1.5m/s
06:00
1% 11°C 0mm 89% 0cm 4.8° 13°C 0mm 0.16kPa 24135m 1.7m/s 1.5m/s
07:00
1% 12°C 0mm 89% 0cm 12° 13°C 0mm 0.17kPa 24134m 2.5m/s 1.6m/s
08:00
1% 12°C 0.003mm 88% 0cm 20° 14°C 0.06mm 0.19kPa 24134m 6.5m/s 4.1m/s
09:00
0% 13°C 0.007mm 88% 0cm 28° 15°C 0.13mm 0.21kPa 24135m 11m/s 6.7m/s
10:00
0% 13°C 0.01mm 87% 0cm 35° 15°C 0.19mm 0.23kPa 24135m 15m/s 9.2m/s
11:00
0% 13°C 0.01mm 88% 0cm 42° 15°C 0.21mm 0.21kPa 24135m 14m/s 8.6m/s
12:00
0% 13°C 0.02mm 89% 0cm 47° 15°C 0.23mm 0.19kPa 24135m 14m/s 8.1m/s
13:00
0% 13°C 0.02mm 90% 0cm 50° 15°C 0.25mm 0.17kPa 24135m 13m/s 7.5m/s
14:00
0% 13°C 0.01mm 91% 0cm 50° 15°C 0.21mm 0.15kPa 24135m 13m/s 7.3m/s
15:00
0% 13°C 0.007mm 92% 0cm 48° 14°C 0.17mm 0.12kPa 24135m 13m/s 7.1m/s
16:00
0% 13°C 0mm 94% 0cm 42° 14°C 0.13mm 0.1kPa 24135m 12m/s 6.8m/s
17:00
0% 13°C 0.003mm 93% 0cm 36° 14°C 0.15mm 0.11kPa 24135m 12m/s 6.6m/s
18:00
0% 13°C 0.007mm 93% 0cm 28° 14°C 0.17mm 0.11kPa 24135m 12m/s 6.4m/s
19:00
0% 13°C 0.01mm 93% 0cm 20° 14°C 0.19mm 0.12kPa 24135m 12m/s 6.3m/s
20:00
0% 13°C 0.02mm 93% 0cm 12° 14°C 0.17mm 0.11kPa 17488m 12m/s 6.1m/s
21:00
0% 13°C 0.02mm 94% 0cm 5.2° 14°C 0.15mm 0.1kPa 10840m 12m/s 6m/s
22:00 ☾
0% 13°C 0.03mm 94% 0cm -1.3° 14°C 0.13mm 0.1kPa 4193m 12m/s 5.9m/s
23:00 ☾
0% 13°C 0.03mm 94% 0cm -6.8° 14°C 0.17mm 0.1kPa 10840m 12m/s 5.7m/s
Wed, Jul 29 Sunrise 05:09 Sunset 21:53
24:00 ☾
0% 13°C 0.02mm 94% 0cm -11° 14°C 0.21mm 0.1kPa 17488m 11m/s 5.5m/s
01:00 ☾
0% 13°C 0.02mm 94% 0cm -13° 14°C 0.25mm 0.09kPa 24135m 11m/s 5.4m/s
02:00 ☾
1% 13°C 0.04mm 93% 0cm -13° 14°C 0.25mm 0.11kPa 24135m 10m/s 5.1m/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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