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Rule Fog Hunter

Wast Water - Fog Hunter - Lake District

Wasdale Head, England, United Kingdom

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.1°C
Visibility23346 (Clear)
Relative Humidity93%
Wind Speed3.9m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in Europe/London
fog weather icon
Next opportunity
Dense Fog
Wast Water
Tomorrow · 24:00–02:00 · 2h window
Medium confidence
53%
🌫️Fog Probability79.7-88.6%
Dewpoint Spread: 0.2°C
Visibility: 5768 (Moderate)
Relative Humidity: 99%
Wind Speed: 2.3m/s (calm conditions)

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the conditions that create the Lake District's legendary atmospheric photography. We combine fog probability, dewpoint spread, visibility, and wind data to predict when and where mist will form over these famous lakes and valleys.

The Lake District's combination of lakes, tarns, and enclosed valleys creates ideal conditions for fog formation. Cool, calm nights allow mist to pool in valley bottoms, creating ethereal scenes at dawn that have inspired poets and photographers for centuries.

What makes the Lake District special for fog photography:

  • Lake mist - Cold water surfaces generate fog that pools over the lakes at dawn
  • Valley inversions - Mountain-ringed valleys trap mist while fells rise above
  • Romantic landscapes - This is Wordsworth and Turner country, with timeless views
  • Accessible locations - Well-maintained paths reach viewpoints above the fog layer

Peak fog season runs from late August through October, when temperature differentials are greatest. The best conditions typically occur on calm, clear nights when temperatures drop near dewpoint. Arrive before dawn—lake mist often lifts within an hour or two of sunrise. Higher viewpoints like Catbells or Loughrigg offer shots looking down at fog-filled valleys.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
Europe/London
Fog Probability
≥ 75.0%
Fri, Jun 5
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, Jun 6
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:0021%
13:0043%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:0055%
Sun, Jun 7
24:0080%
01:0089%
02:0071%
03:0069%
04:0071%
05:0073%
06:0069%
07:0051%
08:0037%
09:000%
10:0017%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:0040%
21:0040%
22:000%
23:000%
Mon, Jun 8
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, Jun 9
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
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, Jun 6 Sunrise 04:41 Sunset 21:42
09:00
0% 7.3°C 0.3mm 93% 0cm 34° 8.4°C 0.25mm 0.08kPa 23346m 11m/s 3.9m/s
10:00
0% 7.6°C 0.1mm 94% 0cm 42° 8.5°C 0.44mm 0.07kPa 24134m 11m/s 3.6m/s
11:00
0% 7.8°C 0.1mm 94% 0cm 50° 8.6°C 0.63mm 0.06kPa 24134m 10m/s 3.5m/s
12:00
0% 8.1°C 0mm 96% 0cm 55° 8.7°C 0.63mm 0.05kPa 17478m 9.7m/s 2.9m/s
13:00
0% 8.8°C 0mm 96% 0cm 58° 9.5°C 0.63mm 0.05kPa 595m 7.5m/s 2.2m/s
14:00
1% 9.4°C 0mm 94% 0cm 57° 10°C 0.06mm 0.07kPa 6515m 4.4m/s 1.9m/s
15:00
1% 9.5°C 0mm 92% 0cm 52° 11°C 0.13mm 0.1kPa 23673m 3.2m/s 1.6m/s
16:00
2% 9.7°C 0mm 92% 0cm 45° 11°C 0.13mm 0.11kPa 24135m 2.3m/s 1.6m/s
17:00
3% 10°C 0.01mm 90% 0cm 37° 12°C 0.13mm 0.14kPa 24134m 1.8m/s 1.6m/s
18:00
3% 10°C 0mm 93% 0cm 29° 11°C 0.19mm 0.09kPa 24134m 1.5m/s 1.2m/s
19:00
4% 10°C 0mm 93% 0cm 20° 11°C 0.19mm 0.09kPa 24134m 1m/s 1m/s
20:00
5% 9.8°C 0mm 93% 0cm 12° 11°C 0mm 0.09kPa 24135m 0.92m/s 1m/s
21:00
7% 9.6°C 0mm 93% 0cm 4.2° 11°C 0mm 0.09kPa 24134m 0.81m/s 0.9m/s
22:00 ☾
8% 9.5°C 0mm 94% 0cm -2.4° 10°C 0mm 0.07kPa 24135m 1.5m/s 1.7m/s
23:00 ☾
6% 9.6°C 0.02mm 96% 0cm -7.7° 10°C 0mm 0.05kPa 24135m 2.1m/s 1.9m/s
Sun, Jun 7 Sunrise 04:41 Sunset 21:42
24:00 ☾
4% 9.8°C 0mm 99% 0cm -11° 10°C 0.06mm 0.02kPa 8384m 2.9m/s 2.2m/s
01:00 ☾
2% 9.7°C 0mm 99% 0cm -13° 9.9°C 0.19mm 0.02kPa 5768m 5.4m/s 2.3m/s
02:00 ☾
2% 8.8°C 0mm 97% 0cm -12° 9.2°C 0.06mm 0.03kPa 24135m 2.3m/s 1.9m/s
03:00 ☾
1% 8.4°C 0mm 99% 0cm -9.3° 8.5°C 0.13mm 0.01kPa 8197m 4.3m/s 2.4m/s
04:00 ☾
1% 8.4°C 0.08mm 98% 0cm -4.7° 8.8°C 0.19mm 0.03kPa 19594m 5.4m/s 2.6m/s
05:00
1% 8.6°C 0.01mm 98% 0cm 1.7° 8.9°C 0.19mm 0.02kPa 24135m 6.7m/s 2.8m/s
06:00
0% 9.4°C 0mm 99% 0cm 8.7° 9.4°C 0.19mm 0.01kPa 273m 7.4m/s 2.9m/s
07:00
0% 10°C 0mm 98% 0cm 17° 11°C 0.38mm 0.02kPa 405m 8.6m/s 3.5m/s
08:00
0% 11°C 0mm 98% 0cm 25° 11°C 0.25mm 0.02kPa 225m 8.1m/s 3.8m/s
09:00
0% 10°C 0mm 95% 0cm 34° 11°C 0.44mm 0.07kPa 19635m 9.4m/s 5.3m/s
10:00
0% 11°C 0mm 95% 0cm 42° 11°C 0.63mm 0.06kPa 23572m 10m/s 5.4m/s
11:00
0% 11°C 0mm 94% 0cm 50° 12°C 0.75mm 0.08kPa 20642m 12m/s 7.5m/s
12:00
0% 12°C 0mm 94% 0cm 56° 12°C 0.88mm 0.09kPa 23022m 13m/s 8.1m/s
13:00
0% 12°C 0mm 90% 0cm 58° 13°C 1.1mm 0.15kPa 15985m 14m/s 8.9m/s
14:00
0% 12°C 0mm 91% 0cm 57° 14°C 0.5mm 0.15kPa 15273m 15m/s 9.8m/s
15:00
1% 12°C 0mm 90% 0cm 52° 14°C 0.81mm 0.16kPa 14567m 15m/s 10m/s
16:00
1% 12°C 0mm 92% 0cm 46° 13°C 1.2mm 0.12kPa 16259m 15m/s 8.7m/s
17:00
1% 12°C 0.01mm 95% 0cm 37° 13°C 1.6mm 0.08kPa 6737m 14m/s 8.8m/s
18:00
0% 12°C 0.11mm 97% 0cm 29° 12°C 2.3mm 0.04kPa 3024m 13m/s 7.1m/s
19:00
0% 11°C 0.12mm 98% 0cm 20° 12°C 2.7mm 0.03kPa 513m 11m/s 5.6m/s
20:00
0% 11°C 0.05mm 98% 0cm 12° 12°C 0.31mm 0.02kPa 495m 11m/s 4.9m/s
21:00
1% 11°C 0.08mm 98% 0cm 4.3° 11°C 0.75mm 0.02kPa 231m 10m/s 4.4m/s
22:00 ☾
1% 11°C 0.09mm 99% 0cm -2.3° 11°C 1.3mm 0.02kPa 180m 9.7m/s 4m/s
23:00 ☾
1% 11°C 0.51mm 97% 0cm -7.6° 11°C 2.1mm 0.03kPa 9732m 11m/s 4.9m/s
Mon, Jun 8 Sunrise 04:40 Sunset 21:43
24:00 ☾
0% 11°C 0.24mm 98% 0cm -11° 11°C 2.6mm 0.03kPa 19852m 9.2m/s 3.7m/s
01:00 ☾
0% 10°C 0.75mm 97% 0cm -13° 11°C 3.3mm 0.04kPa 10972m 9.5m/s 3.9m/s
02:00 ☾
0% 10°C 2.1mm 99% 0cm -12° 10°C 1.7mm 0.02kPa 1658m 10m/s 2.7m/s
03:00 ☾
0% 11°C 1.2mm 99% 0cm -9.3° 11°C 3.4mm 0.02kPa 214m 10m/s 3.4m/s
04:00 ☾
0% 11°C 3.5mm 99% 0cm -4.6° 11°C 6mm 0.02kPa 156m 8.1m/s 3m/s
05:00
0% 11°C 1.9mm 98% 0cm 1.7° 11°C 9.9mm 0.02kPa 394m 12m/s 4.7m/s
06:00
0% 10°C 0.61mm 97% 0cm 8.7° 11°C 11mm 0.03kPa 536m 11m/s 4.8m/s
07:00
0% 9.9°C 1.6mm 97% 0cm 17° 10°C 11mm 0.03kPa 735m 10m/s 4m/s
08:00
1% 10°C 2.4mm 98% 0cm 25° 10°C 1.4mm 0.03kPa 585m 8.7m/s 3.2m/s
09:00
1% 10°C 0.56mm 98% 0cm 34° 10°C 3.1mm 0.03kPa 548m 10m/s 4.1m/s
10:00
2% 10°C 0.35mm 98% 0cm 42° 11°C 3.5mm 0.03kPa 1588m 10m/s 5m/s
11:00
4% 11°C 4mm 98% 0cm 50° 11°C 4.7mm 0.03kPa 966m 13m/s 5.5m/s
12:00
5% 8.7°C 0.08mm 98% 0cm 56° 9.1°C 7.3mm 0.03kPa 7459m 9.2m/s 4.6m/s
13:00
7% 7.2°C 0.09mm 98% 0cm 58° 7.6°C 7.5mm 0.03kPa 5175m 11m/s 7.3m/s
14:00
26% 7.5°C 0.06mm 93% 0cm 57° 8.5°C 5.3mm 0.07kPa 7010m 11m/s 7.4m/s
15:00
45% 7.7°C 0.03mm 89% 0cm 53° 9.4°C 3.1mm 0.13kPa 8846m 11m/s 7.4m/s
16:00
64% 7.9°C 0mm 85% 0cm 46° 10°C 0.88mm 0.19kPa 10681m 11m/s 7.5m/s
17:00
62% 7.9°C 0.16mm 86% 0cm 37° 10°C 1.5mm 0.17kPa 10280m 11m/s 7.7m/s
18:00
60% 7.8°C 0.31mm 88% 0cm 29° 9.7°C 2.2mm 0.15kPa 9879m 11m/s 7.8m/s
19:00
58% 7.7°C 0.47mm 89% 0cm 20° 9.4°C 2.8mm 0.13kPa 9479m 11m/s 8m/s
20:00
48% 7.2°C 0.31mm 88% 0cm 12° 9°C 2.3mm 0.14kPa 10466m 11m/s 7.8m/s
21:00
37% 6.6°C 0.16mm 87% 0cm 4.4° 8.7°C 1.9mm 0.15kPa 11453m 10m/s 7.5m/s
22:00 ☾
27% 6.1°C 0mm 86% 0cm -2.2° 8.3°C 1.4mm 0.16kPa 12440m 10m/s 7.2m/s
23:00 ☾
20% 6.2°C 0.07mm 86% 0cm -7.5° 8.5°C 1.7mm 0.16kPa 14416m 10m/s 7.6m/s
Tue, Jun 9 Sunrise 04:40 Sunset 21:44
24:00 ☾
12% 6.4°C 0.13mm 85% 0cm -11° 8.7°C 2.1mm 0.16kPa 16391m 10m/s 8m/s
01:00 ☾
5% 6.5°C 0.2mm 85% 0cm -13° 8.9°C 2.4mm 0.17kPa 18367m 10m/s 8.4m/s
02:00 ☾
8% 6.7°C 0.13mm 85% 0cm -12° 9°C 2.1mm 0.17kPa 16940m 11m/s 8.7m/s
03:00 ☾
11% 6.8°C 0.07mm 85% 0cm -9.2° 9.1°C 1.8mm 0.17kPa 15512m 11m/s 9m/s
04:00 ☾
14% 6.9°C 0mm 85% 0cm -4.6° 9.2°C 1.4mm 0.17kPa 14084m 11m/s 9.2m/s
05:00
13% 7.4°C 0.05mm 85% 0cm 1.8° 9.7°C 1.9mm 0.18kPa 12913m 11m/s 9.3m/s
06:00
13% 7.9°C 0.1mm 85% 0cm 8.8° 10°C 2.3mm 0.18kPa 11742m 11m/s 9.5m/s
07:00
12% 8.4°C 0.15mm 85% 0cm 17° 11°C 2.7mm 0.19kPa 10571m 11m/s 9.6m/s
08:00
17% 8.3°C 0.1mm 83% 0cm 25° 11°C 2.1mm 0.22kPa 12453m 11m/s 9.1m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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