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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
Dewpoint Spread3.6°C
Visibility24134 (Clear)
Relative Humidity79%
Wind Speed1.9m/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 (95-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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95-hour requirements breakdown

When available, the detailed table below covers only the stated 95-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 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Wed, Jul 15
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, Jul 16
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%
22:0055%
23:0071%
Fri, Jul 17
24:0073%
01:0073%
02:0073%
03:0049%
04:0038%
05:0038%
06:0055%
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%
Sat, Jul 18
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%
Sun, Jul 19
24:000%
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
Thu, Jul 16 Sunrise 04:46 Sunset 22:15
03:00
79% 9.4°C 0mm 79% 0cm -8.3° 13°C 0mm 0.32kPa 24134m 1.9m/s 1.9m/s
04:00
74% 9.5°C 0mm 81% 0cm -4.6° 13°C 0mm 0.29kPa 24134m 1.7m/s 1.7m/s
05:00
75% 9.5°C 0mm 81% 0cm 0.89° 13°C 0mm 0.28kPa 24135m 1.8m/s 1.8m/s
06:00
76% 10°C 0mm 81% 0cm 6.9° 13°C 0mm 0.3kPa 24135m 2.1m/s 2.1m/s
07:00
77% 11°C 0mm 80% 0cm 14° 15°C 0mm 0.34kPa 24134m 2.9m/s 2.2m/s
08:00
68% 11°C 0mm 74% 0cm 22° 16°C 0mm 0.48kPa 24134m 2.6m/s 2m/s
09:00
60% 11°C 0mm 68% 0cm 30° 17°C 0mm 0.63kPa 24134m 2.4m/s 2.1m/s
10:00
51% 11°C 0mm 64% 0cm 37° 18°C 0mm 0.76kPa 24135m 2.7m/s 2.6m/s
11:00
50% 11°C 0mm 61% 0cm 44° 19°C 0mm 0.86kPa 24135m 2.6m/s 2.6m/s
12:00
48% 11°C 0mm 58% 0cm 50° 20°C 0mm 0.97kPa 24135m 2.4m/s 2.6m/s
13:00
47% 11°C 0mm 56% 0cm 53° 20°C 0mm 1kPa 24135m 2.8m/s 3.1m/s
14:00
47% 11°C 0mm 58% 0cm 53° 19°C 0mm 0.95kPa 24134m 3.6m/s 4m/s
15:00
48% 11°C 0mm 59% 0cm 50° 19°C 0mm 0.9kPa 24135m 4.3m/s 4.2m/s
16:00
48% 11°C 0mm 61% 0cm 44° 18°C 0mm 0.83kPa 24135m 4.8m/s 4.5m/s
17:00
45% 11°C 0mm 66% 0cm 38° 17°C 0mm 0.66kPa 24134m 5.8m/s 5m/s
18:00
43% 10°C 0mm 65% 0cm 30° 17°C 0mm 0.68kPa 24135m 5m/s 3.7m/s
19:00
40% 11°C 0mm 68% 0cm 22° 16°C 0mm 0.6kPa 24134m 5.3m/s 4.1m/s
20:00
40% 12°C 0mm 83% 0cm 14° 14°C 0mm 0.28kPa 24134m 7.2m/s 4.9m/s
21:00
40% 12°C 0mm 91% 0cm 7.2° 13°C 0mm 0.14kPa 24135m 6.9m/s 3.4m/s
22:00
40% 12°C 0mm 97% 0cm 1.1° 12°C 0mm 0.05kPa 24134m 6.9m/s 3.2m/s
23:00
37% 11°C 0mm 98% 0cm -4.5° 11°C 0mm 0.03kPa 24135m 7.8m/s 3.4m/s
Fri, Jul 17 Sunrise 04:46 Sunset 22:15
24:00
35% 11°C 0mm 98% 0cm -8.3° 11°C 0mm 0.03kPa 23600m 7.2m/s 3m/s
01:00
32% 11°C 0mm 98% 0cm -10° 11°C 0mm 0.02kPa 21795m 6.7m/s 2.9m/s
02:00
27% 11°C 0mm 98% 0cm -10° 11°C 0mm 0.02kPa 22203m 6.8m/s 3.3m/s
03:00
23% 11°C 0mm 97% 0cm -8.4° 11°C 0mm 0.04kPa 20916m 7m/s 3.6m/s
04:00
18% 10°C 0mm 96% 0cm -4.8° 11°C 0mm 0.05kPa 24135m 7.5m/s 3.7m/s
05:00
17% 10°C 0mm 96% 0cm 0.75° 11°C 0mm 0.05kPa 24135m 7.6m/s 3.5m/s
06:00
16% 10°C 0mm 95% 0cm 6.8° 11°C 0mm 0.07kPa 24134m 7.3m/s 3.4m/s
07:00
15% 11°C 0mm 89% 0cm 14° 13°C 0mm 0.16kPa 24135m 7.6m/s 4.4m/s
08:00
18% 10°C 0mm 81% 0cm 22° 13°C 0mm 0.28kPa 24134m 6.4m/s 4.7m/s
09:00
22% 9.9°C 0mm 77% 0cm 29° 14°C 0mm 0.37kPa 24134m 6.3m/s 4.8m/s
10:00
25% 9.7°C 0mm 72% 0cm 37° 15°C 0mm 0.46kPa 24135m 6m/s 4.4m/s
11:00
26% 9.7°C 0mm 70% 0cm 44° 15°C 0mm 0.51kPa 24134m 6.3m/s 4.5m/s
12:00
26% 9.7°C 0mm 68% 0cm 49° 16°C 0mm 0.56kPa 24135m 6.7m/s 4.6m/s
13:00
27% 9.8°C 0mm 68% 0cm 52° 16°C 0mm 0.58kPa 24135m 7m/s 4.9m/s
14:00
38% 9.7°C 0mm 66% 0cm 53° 16°C 0mm 0.61kPa 24135m 8.3m/s 5.9m/s
15:00
49% 9.7°C 0mm 65% 0cm 50° 16°C 0mm 0.64kPa 24135m 8.2m/s 5.9m/s
16:00
60% 9.9°C 0mm 67% 0cm 44° 16°C 0mm 0.59kPa 24135m 8.1m/s 5.8m/s
17:00
63% 10°C 0mm 71% 0cm 37° 16°C 0mm 0.51kPa 24134m 8.1m/s 5.9m/s
18:00
66% 10°C 0mm 74% 0cm 30° 15°C 0mm 0.45kPa 24134m 8m/s 5.8m/s
19:00
69% 10°C 0mm 77% 0cm 22° 14°C 0mm 0.38kPa 24134m 8.3m/s 5.7m/s
20:00
71% 11°C 0mm 82% 0cm 14° 14°C 0mm 0.29kPa 24135m 8.3m/s 5.3m/s
21:00
74% 11°C 0mm 88% 0cm 7.1° 13°C 0mm 0.17kPa 24135m 8.2m/s 4.8m/s
22:00
76% 11°C 0mm 94% 0cm 0.95° 12°C 0mm 0.09kPa 24134m 7.4m/s 4.2m/s
23:00
71% 10°C 0.01mm 88% 0cm -4.6° 12°C 0mm 0.18kPa 24135m 6.7m/s 4.4m/s
Sat, Jul 18 Sunrise 04:48 Sunset 22:13
24:00
66% 9.6°C 0.02mm 84% 0cm -8.4° 12°C 0mm 0.23kPa 24134m 6.3m/s 4.6m/s
01:00
61% 9.7°C 0.01mm 83% 0cm -10° 12°C 0.06mm 0.24kPa 24134m 5.6m/s 3.9m/s
02:00
44% 9.3°C 0.01mm 81% 0cm -10° 12°C 0mm 0.27kPa 24134m 5.5m/s 4.1m/s
03:00
28% 9°C 0.01mm 80% 0cm -8.6° 12°C 0mm 0.28kPa 24134m 5.7m/s 4.4m/s
04:00
11% 8.9°C 0.01mm 81% 0cm -4.9° 12°C 0mm 0.27kPa 24135m 5.6m/s 4.2m/s
05:00
8% 8.6°C 0.01mm 79% 0cm 0.61° 12°C 0.06mm 0.29kPa 24134m 4.4m/s 3.4m/s
06:00
5% 8.5°C 0mm 79% 0cm 6.6° 12°C 0.06mm 0.3kPa 24134m 4m/s 3.3m/s
07:00
2% 8.5°C 0.01mm 78% 0cm 14° 12°C 0.06mm 0.32kPa 24134m 3.9m/s 3.1m/s
08:00
2% 9.1°C 0.007mm 75% 0cm 21° 13°C 0.04mm 0.37kPa 24134m 4.7m/s 3.9m/s
09:00
2% 9.6°C 0.003mm 73% 0cm 29° 14°C 0.02mm 0.44kPa 24135m 5.5m/s 4.7m/s
10:00
2% 10°C 0mm 71% 0cm 37° 15°C 0mm 0.51kPa 24135m 6.2m/s 5.4m/s
11:00
2% 10°C 0mm 72% 0cm 44° 15°C 0mm 0.47kPa 24135m 6.1m/s 5.2m/s
12:00
2% 10°C 0mm 74% 0cm 49° 15°C 0mm 0.44kPa 24135m 5.9m/s 5m/s
13:00
2% 10°C 0mm 75% 0cm 52° 15°C 0mm 0.41kPa 24135m 5.7m/s 4.8m/s
14:00
7% 10°C 0mm 80% 0cm 52° 14°C 0mm 0.32kPa 24135m 5.1m/s 4.1m/s
15:00
12% 10°C 0mm 84% 0cm 49° 13°C 0mm 0.23kPa 24135m 4.5m/s 3.5m/s
16:00
17% 10°C 0mm 89% 0cm 44° 12°C 0mm 0.16kPa 24135m 3.8m/s 2.9m/s
17:00
14% 9.6°C 0mm 89% 0cm 37° 11°C 0mm 0.14kPa 24135m 3.5m/s 2.7m/s
18:00
11% 9.1°C 0mm 90% 0cm 30° 11°C 0mm 0.13kPa 24135m 3.1m/s 2.5m/s
19:00
8% 8.6°C 0mm 91% 0cm 22° 10°C 0mm 0.12kPa 24135m 2.7m/s 2.3m/s
20:00
9% 8.1°C 0mm 87% 0cm 14° 10°C 0mm 0.16kPa 24135m 2.4m/s 2m/s
21:00
10% 7.7°C 0mm 84% 0cm 6.9° 10°C 0mm 0.2kPa 24135m 2.1m/s 1.7m/s
22:00
11% 7.2°C 0mm 81% 0cm 0.82° 10°C 0mm 0.24kPa 24135m 1.7m/s 1.4m/s
23:00
10% 7.3°C 0mm 79% 0cm -4.8° 11°C 0mm 0.28kPa 24135m 1.6m/s 1.4m/s
Sun, Jul 19 Sunrise 04:50 Sunset 22:12
24:00
9% 7.4°C 0mm 76% 0cm -8.6° 11°C 0mm 0.32kPa 24135m 1.5m/s 1.3m/s
01:00
8% 7.5°C 0mm 74% 0cm -11° 12°C 0mm 0.36kPa 24135m 1.4m/s 1.2m/s
02:00
10% 8.3°C 0mm 73% 0cm -11° 13°C 0mm 0.41kPa 24135m 1.8m/s 1.1m/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.

Forecast generated

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