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Rule Fog Hunter

Fog Hunter Forecast for Slad Valley, Cotswolds

Stroud, England, United Kingdom

Slad Valley's wooded slopes, stone cottages and narrow lanes form the landscape of Laurie Lee's 'Cider with Rosie', with mist sometimes pooling at dawn.

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread12.1°C
Visibility24134 (Clear)
Relative Humidity45%
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 (85-hour forecast)

  • Fog Probability100% of hours

How this forecast is evaluated

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

Explore Fog Hunter conditions across Cotswolds →

Recorded match history

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

Last 30 days
1
recorded matching window · 56% average confidence
Last 90 days
7
recorded matching windows · 61% average confidence
Last 365 days
8
recorded matching windows · 63% average confidence

Only 8 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/London
Fog Probability
≥ 75.0%
Sat, Aug 22
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, 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%
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
Sat, Aug 22 Sunrise 06:05 Sunset 20:17
20:00
19% 4.5°C 0mm 45% 0cm 2.1° 17°C 0mm 1kPa 24134m 2.1m/s 1.9m/s
21:00 ☾
21% 5.4°C 0mm 56% 0cm -6.8° 14°C 0mm 0.7kPa 24135m 1.8m/s 1.7m/s
22:00 ☾
24% 5.6°C 0mm 58% 0cm -14° 14°C 0mm 0.66kPa 24135m 2m/s 1.9m/s
23:00 ☾
35% 5.4°C 0mm 58% 0cm -21° 14°C 0mm 0.65kPa 24134m 3.9m/s 3.1m/s
Sun, Aug 23 Sunrise 06:05 Sunset 20:17
24:00 ☾
46% 6.1°C 0mm 65% 0cm -25° 13°C 0mm 0.51kPa 24134m 4.8m/s 3.4m/s
01:00 ☾
57% 7.3°C 0mm 78% 0cm -27° 11°C 0mm 0.3kPa 24134m 4.4m/s 3.2m/s
02:00 ☾
71% 7.7°C 0mm 86% 0cm -26° 10°C 0mm 0.18kPa 24134m 4m/s 2.9m/s
03:00 ☾
86% 7.6°C 0mm 87% 0cm -23° 9.7°C 0mm 0.16kPa 24134m 2.5m/s 2.5m/s
04:00 ☾
100% 7.3°C 0mm 87% 0cm -17° 9.4°C 0mm 0.15kPa 24134m 2.2m/s 2.2m/s
05:00 ☾
100% 7.3°C 0mm 89% 0cm -10° 9.1°C 0mm 0.13kPa 24134m 1.9m/s 1.9m/s
06:00 ☾
100% 7.1°C 0mm 90% 0cm -1.6° 8.6°C 0mm 0.11kPa 24135m 1.8m/s 1.8m/s
07:00
100% 7.4°C 0mm 87% 0cm 7.3° 9.5°C 0mm 0.15kPa 24135m 1.5m/s 1.6m/s
08:00
100% 7.6°C 0mm 73% 0cm 16° 12°C 0mm 0.39kPa 24135m 1.9m/s 1.6m/s
09:00
100% 7.4°C 0mm 60% 0cm 26° 15°C 0mm 0.68kPa 24134m 1.4m/s 1.5m/s
10:00
100% 7.3°C 0mm 50% 0cm 34° 18°C 0mm 1kPa 24134m 0.72m/s 0.62m/s
11:00
100% 7.1°C 0mm 43% 0cm 42° 20°C 0mm 1.3kPa 24134m 0.92m/s 0.56m/s
12:00
100% 6.6°C 0mm 38% 0cm 47° 22°C 0mm 1.6kPa 24135m 0.93m/s 1m/s
13:00
100% 6°C 0mm 33% 0cm 50° 23°C 0mm 1.9kPa 24135m 0.8m/s 0.88m/s
14:00
100% 5.4°C 0mm 30% 0cm 48° 24°C 0mm 2.1kPa 24135m 0.8m/s 0.8m/s
15:00
100% 4.9°C 0mm 28% 0cm 44° 24°C 0mm 2.2kPa 24134m 0.52m/s 0.47m/s
16:00
100% 4.4°C 0mm 27% 0cm 37° 24°C 0mm 2.2kPa 24135m 0.75m/s 0.8m/s
17:00
100% 3.9°C 0mm 27% 0cm 29° 24°C 0mm 2.2kPa 24135m 1.2m/s 1.3m/s
18:00
100% 3.6°C 0mm 27% 0cm 20° 24°C 0mm 2.1kPa 24134m 1.7m/s 1.5m/s
19:00
100% 4.7°C 0mm 31% 0cm 11° 23°C 0mm 1.9kPa 24135m 2.1m/s 1.8m/s
20:00
97% 4°C 0mm 37% 0cm 1.8° 19°C 0mm 1.4kPa 24134m 2.8m/s 2.8m/s
21:00 ☾
94% 4.3°C 0mm 44% 0cm -7.1° 17°C 0mm 1.1kPa 24134m 2.7m/s 2.7m/s
22:00 ☾
91% 7.2°C 0mm 59% 0cm -15° 15°C 0mm 0.7kPa 24134m 4.3m/s 2.7m/s
23:00 ☾
90% 8.7°C 0mm 72% 0cm -21° 14°C 0mm 0.43kPa 24134m 1.8m/s 1.8m/s
Mon, Aug 24 Sunrise 06:06 Sunset 20:15
24:00 ☾
89% 8.9°C 0mm 78% 0cm -25° 13°C 0mm 0.33kPa 24134m 2.3m/s 2.4m/s
01:00 ☾
88% 9°C 0mm 82% 0cm -27° 12°C 0mm 0.25kPa 24134m 2m/s 2m/s
02:00 ☾
85% 8.9°C 0mm 83% 0cm -26° 12°C 0mm 0.23kPa 24134m 3.3m/s 2.3m/s
03:00 ☾
81% 8.3°C 0mm 82% 0cm -23° 11°C 0mm 0.23kPa 24134m 4.7m/s 2.4m/s
04:00 ☾
78% 8°C 0mm 83% 0cm -17° 11°C 0mm 0.22kPa 24135m 4.1m/s 2.2m/s
05:00 ☾
78% 8°C 0mm 84% 0cm -10° 11°C 0mm 0.2kPa 24134m 5.2m/s 2.4m/s
06:00 ☾
77% 8.1°C 0mm 86% 0cm -1.8° 10°C 0mm 0.17kPa 24134m 6.3m/s 2.6m/s
07:00
77% 8.5°C 0mm 84% 0cm 7.1° 11°C 0mm 0.22kPa 24134m 7.6m/s 2.6m/s
08:00
69% 9.3°C 0mm 72% 0cm 16° 14°C 0mm 0.44kPa 24134m 9.5m/s 3.9m/s
09:00
62% 9.2°C 0mm 62% 0cm 25° 17°C 0mm 0.71kPa 24135m 9.8m/s 6.2m/s
10:00
54% 7.9°C 0mm 51% 0cm 34° 18°C 0mm 1kPa 24135m 8.8m/s 6.9m/s
11:00
50% 6.4°C 0mm 42% 0cm 41° 20°C 0mm 1.3kPa 24134m 8.5m/s 7m/s
12:00
45% 5.8°C 0mm 38% 0cm 47° 21°C 0mm 1.5kPa 24134m 8.5m/s 7m/s
13:00
41% 5.6°C 0mm 35% 0cm 49° 22°C 0mm 1.7kPa 24134m 8.5m/s 7.1m/s
14:00
32% 5.8°C 0mm 34% 0cm 48° 23°C 0mm 1.8kPa 24134m 8.2m/s 6.8m/s
15:00
24% 5.6°C 0mm 32% 0cm 44° 23°C 0mm 1.9kPa 24135m 7.8m/s 7m/s
16:00
15% 5.2°C 0mm 32% 0cm 37° 23°C 0mm 1.9kPa 24134m 7.8m/s 6.9m/s
17:00
12% 4.9°C 0mm 32% 0cm 29° 22°C 0mm 1.8kPa 24135m 7.8m/s 6.9m/s
18:00
10% 4.6°C 0mm 32% 0cm 20° 22°C 0mm 1.8kPa 24134m 7.9m/s 6.4m/s
19:00
7% 5.4°C 0mm 36% 0cm 10° 21°C 0mm 1.6kPa 24135m 8.2m/s 6.1m/s
20:00
14% 6°C 0mm 44% 0cm 1.5° 19°C 0mm 1.2kPa 24134m 11m/s 6.2m/s
21:00 ☾
20% 6.9°C 0mm 51% 0cm -7.4° 17°C 0mm 0.94kPa 24134m 12m/s 5.5m/s
22:00 ☾
27% 7.8°C 0mm 59% 0cm -15° 16°C 0mm 0.75kPa 24134m 13m/s 6.2m/s
23:00 ☾
21% 8.9°C 0mm 66% 0cm -21° 15°C 0mm 0.59kPa 24135m 13m/s 6.1m/s
Tue, Aug 25 Sunrise 06:08 Sunset 20:12
24:00 ☾
16% 9.6°C 0mm 72% 0cm -26° 15°C 0mm 0.47kPa 24134m 13m/s 6.1m/s
01:00 ☾
10% 10°C 0mm 79% 0cm -27° 14°C 0mm 0.34kPa 24134m 13m/s 5.7m/s
02:00 ☾
12% 11°C 0mm 71% 0cm -27° 16°C 0mm 0.53kPa 24134m 12m/s 6.2m/s
03:00 ☾
13% 11°C 0mm 63% 0cm -23° 18°C 0mm 0.75kPa 24134m 11m/s 6.6m/s
04:00 ☾
15% 11°C 0mm 55% 0cm -18° 20°C 0mm 1kPa 24135m 9.6m/s 7m/s
05:00 ☾
13% 9.8°C 0mm 48% 0cm -10° 21°C 0mm 1.3kPa 24135m 9m/s 6.8m/s
06:00 ☾
11% 8.6°C 0mm 40% 0cm -2.1° 23°C 0mm 1.7kPa 24135m 8.4m/s 6.7m/s
07:00
9% 6.9°C 0mm 32% 0cm 6.9° 25°C 0mm 2.1kPa 24135m 7.8m/s 6.5m/s
08:00
8% 6.1°C 0mm 30% 0cm 16° 25°C 0mm 2.2kPa 24135m 7.6m/s 6.4m/s
09:00
7% 5.2°C 0mm 27% 0cm 25° 25°C 0mm 2.4kPa 24135m 7.4m/s 6.2m/s
10:00
6% 4.2°C 0mm 25% 0cm 34° 26°C 0mm 2.5kPa 24135m 7.2m/s 6.1m/s
11:00
7% 5.2°C 0.003mm 28% 0cm 41° 25°C 0mm 2.3kPa 24135m 7.5m/s 5.8m/s
12:00
7% 6°C 0.007mm 31% 0cm 46° 24°C 0mm 2.1kPa 24135m 7.8m/s 5.5m/s
13:00
8% 6.6°C 0.01mm 34% 0cm 49° 23°C 0mm 1.9kPa 24135m 8.1m/s 5.2m/s
14:00
9% 7.7°C 0.007mm 40% 0cm 48° 22°C 0.04mm 1.6kPa 24135m 8.5m/s 4.6m/s
15:00
9% 8.4°C 0.003mm 46% 0cm 43° 21°C 0.08mm 1.3kPa 24135m 8.9m/s 4m/s
16:00
10% 8.9°C 0mm 52% 0cm 37° 19°C 0.13mm 1.1kPa 24135m 9.2m/s 3.4m/s
17:00
10% 9°C 0mm 53% 0cm 28° 19°C 0.13mm 1kPa 24135m 7.2m/s 2.9m/s
18:00
11% 9°C 0mm 54% 0cm 19° 18°C 0.13mm 0.96kPa 24135m 5.1m/s 2.5m/s
19:00
11% 9.1°C 0mm 56% 0cm 10° 18°C 0.13mm 0.91kPa 24135m 3m/s 2m/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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