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Rule Fog Hunter

Miette - Fog Hunter - Canadian Rockies

Miette, Alberta, Canada

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread1.6°C
Visibility24135 (Clear)
Relative Humidity89%
Wind Speed1.1m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Edmonton
fog weather icon
Next opportunity
Dense Fog at Sunset
Miette
Tue, May 26 · 21:00–23:00 · 2h window
Medium confidence
41%
🌫️Fog Probability77.1-88.6%
Dewpoint Spread: 0.2°C
Visibility: 5537 (Moderate)
Relative Humidity: 98%
Wind Speed: 1.5m/s (calm conditions)

What this forecast looks for

Plain-language explanation from the rule

This forecast tracks the temperature inversions and fog conditions that create some of the most dramatic mountain photography in North America. We combine atmospheric data with local topography to predict when Bow Valley inversions will trap fog below while peaks glow above.

The Canadian Rockies are famous for their autumn morning fog, particularly in the Bow Valley corridor between Banff and Lake Louise. Cold mountain air settles into valleys overnight, creating thick fog layers that can persist until mid-morning, especially in September and October.

What makes Rockies fog photography exceptional:

  • Bow Valley inversions - Temperature inversions create sea-of-fog conditions with peaks emerging above the cloud layer
  • Glacier lake mist - Moraine Lake and Lake Louise develop ethereal mist at dawn when water temperatures meet cold air
  • Castle Junction phenomena - Junction areas where valleys meet create reliable fog formation zones
  • Autumn intensity - September through October brings the most dramatic and frequent fog events

Best shooting occurs at elevated viewpoints like Tunnel Mountain or Sulphur Mountain during inversions, or directly at lake level during misty conditions. Our forecast identifies when these different fog types will occur.

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72-hour requirements breakdown

What passed or failed, hour by hour
2matching hours in the next 80 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Edmonton
Fog Probability
≥ 75.0%
Sat, May 23
22:000%
23:000%
Sun, May 24
24:000%
01:0030%
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, May 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%
20:000%
21:000%
22:000%
23:000%
Tue, May 26
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:0039%
08:0048%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:0044%
19:0048%
20:0068%
21:0089%
22:0077%
23:0071%
Wed, May 27
24:0071%
01:000%
02:000%
03:000%
04:000%
05:000%
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
America/Edmonton
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, May 24 Sunrise 05:39 Sunset 21:58
07:00
1% 2.5°C 0mm 89% 0cm 9.7° 4.1°C 0mm 0.09kPa 24135m 1.7m/s 1.1m/s
08:00
1% 2.7°C 0mm 80% 0cm 18° 5.8°C 0mm 0.18kPa 24135m 2.2m/s 1.2m/s
09:00
0% 2.3°C 0mm 68% 0cm 27° 7.8°C 0mm 0.34kPa 24134m 3m/s 0.72m/s
10:00
0% -0.1°C 0mm 50% 0cm 36° 9.8°C 0.06mm 0.61kPa 24134m 6.8m/s 1.2m/s
11:00
0% -2.4°C 0mm 39% 0cm 44° 11°C 0.06mm 0.8kPa 24134m 7.7m/s 1.8m/s
12:00
0% -3.8°C 0mm 33% 0cm 52° 12°C 0.06mm 0.95kPa 24134m 6.2m/s 2.1m/s
13:00
0% -3.6°C 0mm 32% 0cm 56° 13°C 0mm 1kPa 24135m 6.8m/s 2.9m/s
14:00
0% -3.3°C 0mm 32% 0cm 58° 13°C 0mm 1kPa 24134m 7.4m/s 3.9m/s
15:00
0% -3.2°C 0mm 31% 0cm 55° 14°C 0mm 1.1kPa 24135m 7.8m/s 3.6m/s
16:00
0% -2.8°C 0mm 30% 0cm 49° 14°C 0mm 1.1kPa 24134m 8.1m/s 4m/s
17:00
0% -2.5°C 0mm 32% 0cm 41° 14°C 0mm 1.1kPa 24135m 7.7m/s 3.9m/s
18:00 ☾
0% -1.9°C 0mm 35% 0cm 33° 13°C 0mm 0.99kPa 24135m 7.3m/s 2.6m/s
19:00 ☾
0% -0.7°C 0mm 39% 0cm 24° 13°C 0mm 0.9kPa 24135m 5.6m/s 1m/s
20:00 ☾
0% 1.3°C 0mm 48% 0cm 15° 12°C 0mm 0.72kPa 24135m 0.82m/s 0.73m/s
21:00 ☾
0% 2.4°C 0mm 59% 0cm 6.7° 9.9°C 0mm 0.5kPa 24135m 1.2m/s 1.2m/s
22:00 ☾
0% 3°C 0mm 69% 0cm -0.62° 8.3°C 0mm 0.33kPa 24134m 0.9m/s 1m/s
23:00 ☾
0% 3.3°C 0mm 78% 0cm -7.3° 6.9°C 0mm 0.22kPa 24134m 0.3m/s 0.24m/s
Mon, May 25 Sunrise 05:38 Sunset 21:59
24:00 ☾
0% 3.2°C 0mm 83% 0cm -12° 5.9°C 0mm 0.16kPa 24134m 0.6m/s 0.63m/s
01:00 ☾
1% 2.9°C 0mm 84% 0cm -15° 5.3°C 0mm 0.14kPa 24135m 0.9m/s 1.1m/s
02:00 ☾
3% 2.7°C 0mm 87% 0cm -16° 4.7°C 0mm 0.11kPa 24134m 1.2m/s 1.4m/s
03:00 ☾
4% 2.6°C 0mm 85% 0cm -14° 4.8°C 0mm 0.13kPa 24135m 1.4m/s 1.6m/s
04:00 ☾
3% 2.4°C 0mm 89% 0cm -11° 4°C 0mm 0.09kPa 24135m 1.6m/s 1.9m/s
05:00 ☾
3% 2.3°C 0mm 91% 0cm -5° 3.7°C 0mm 0.07kPa 24134m 1.8m/s 2.1m/s
06:00
2% 2.2°C 0mm 91% 0cm 2.1° 3.5°C 0mm 0.07kPa 24135m 2m/s 2.3m/s
07:00
2% 2.5°C 0mm 82% 0cm 9.8° 5.4°C 0mm 0.16kPa 24134m 3.2m/s 2.4m/s
08:00
2% 2.8°C 0mm 70% 0cm 18° 7.9°C 0mm 0.32kPa 24134m 3.9m/s 2.8m/s
09:00
2% 2.6°C 0mm 62% 0cm 27° 9.6°C 0mm 0.45kPa 24134m 4.2m/s 2.9m/s
10:00
1% 2.5°C 0mm 56% 0cm 36° 11°C 0mm 0.57kPa 24134m 3.7m/s 2.8m/s
11:00
1% 2.8°C 0mm 57% 0cm 45° 11°C 0mm 0.57kPa 24135m 3.3m/s 2.5m/s
12:00
0% 3.5°C 0mm 60% 0cm 52° 11°C 0.06mm 0.52kPa 24134m 3.3m/s 2.7m/s
13:00
0% 3.4°C 0mm 56% 0cm 57° 12°C 0mm 0.63kPa 24135m 3.2m/s 2.8m/s
14:00
0% 3.1°C 0mm 51% 0cm 58° 13°C 0mm 0.74kPa 24134m 3.8m/s 2.4m/s
15:00
0% 2.6°C 0mm 46% 0cm 55° 14°C 0.06mm 0.85kPa 24135m 5.5m/s 2.3m/s
16:00
0% 3.6°C 0mm 53% 0cm 49° 13°C 0.06mm 0.71kPa 24134m 3.9m/s 3.3m/s
17:00
0% 4.2°C 0mm 57% 0cm 42° 13°C 0.13mm 0.63kPa 24134m 3.6m/s 3.2m/s
18:00 ☾
0% 3.1°C 0mm 48% 0cm 33° 14°C 0.19mm 0.81kPa 24135m 4.2m/s 1.8m/s
19:00 ☾
0% 1.9°C 0mm 44% 0cm 24° 14°C 0mm 0.89kPa 24134m 4.1m/s 2.1m/s
20:00 ☾
0% 3.1°C 0mm 50% 0cm 15° 13°C 0mm 0.76kPa 24135m 2.1m/s 1.4m/s
21:00 ☾
0% 3.2°C 0mm 57% 0cm 6.9° 11°C 0mm 0.58kPa 24134m 1.6m/s 1.7m/s
22:00 ☾
0% 2.8°C 0mm 62% 0cm -0.38° 9.8°C 0mm 0.47kPa 24134m 0.7m/s 0.71m/s
23:00 ☾
0% 2.5°C 0mm 66% 0cm -7.1° 8.4°C 0mm 0.37kPa 24134m 0.71m/s 0.73m/s
Tue, May 26 Sunrise 05:37 Sunset 22:01
24:00 ☾
0% 2.5°C 0mm 69% 0cm -12° 7.8°C 0mm 0.33kPa 24135m 1.2m/s 1.3m/s
01:00 ☾
7% 2.3°C 0mm 71% 0cm -15° 7.1°C 0mm 0.29kPa 24134m 1.3m/s 1.4m/s
02:00 ☾
13% 2.3°C 0mm 72% 0cm -16° 6.9°C 0mm 0.27kPa 24135m 1.9m/s 1.9m/s
03:00 ☾
20% 3.5°C 0mm 82% 0cm -14° 6.4°C 0.13mm 0.17kPa 22985m 4.5m/s 3m/s
04:00 ☾
16% 4.6°C 0mm 94% 0cm -10° 5.5°C 0.13mm 0.05kPa 24135m 1.4m/s 1.5m/s
05:00 ☾
11% 5.6°C 0mm 94% 0cm -4.9° 6.5°C 0.19mm 0.06kPa 24134m 3.4m/s 1.9m/s
06:00
7% 5.8°C 0.02mm 95% 0cm 2.2° 6.6°C 0.19mm 0.05kPa 12386m 2.1m/s 1.1m/s
07:00
5% 6°C 0.22mm 97% 0cm 10° 6.4°C 0.56mm 0.03kPa 4206m 2m/s 1.4m/s
08:00
2% 6°C 0.25mm 98% 0cm 19° 6.3°C 0.88mm 0.02kPa 1594m 2m/s 1.3m/s
09:00
0% 5.9°C 0.02mm 96% 0cm 27° 6.6°C 1.1mm 0.04kPa 22914m 2.1m/s 1.2m/s
10:00
0% 5.8°C 0mm 90% 0cm 36° 7.2°C 1.1mm 0.1kPa 24134m 1.3m/s 0.73m/s
11:00
0% 5.8°C 0mm 88% 0cm 45° 7.7°C 1.1mm 0.13kPa 24135m 1.2m/s 1m/s
12:00
0% 6°C 0mm 86% 0cm 52° 8.1°C 1.1mm 0.15kPa 24134m 1.1m/s 1.1m/s
13:00
0% 6.2°C 0.003mm 84% 0cm 57° 8.7°C 0.77mm 0.18kPa 24134m 1.7m/s 1.6m/s
14:00
0% 6.4°C 0.007mm 82% 0cm 58° 9.3°C 0.48mm 0.21kPa 24135m 2.2m/s 2.2m/s
15:00
0% 6.6°C 0.01mm 80% 0cm 55° 10°C 0.19mm 0.25kPa 24135m 2.8m/s 2.8m/s
16:00
0% 6.6°C 0.007mm 85% 0cm 49° 8.9°C 0.19mm 0.17kPa 24135m 2.3m/s 2.3m/s
17:00
0% 6.4°C 0.003mm 91% 0cm 42° 7.9°C 0.19mm 0.1kPa 24135m 1.8m/s 1.9m/s
18:00 ☾
0% 6.2°C 0mm 96% 0cm 33° 6.9°C 0.19mm 0.04kPa 24135m 1.3m/s 1.5m/s
19:00 ☾
0% 6.1°C 0mm 97% 0cm 24° 6.6°C 0.13mm 0.03kPa 17936m 1.5m/s 1.5m/s
20:00 ☾
1% 6°C 0mm 97% 0cm 15° 6.4°C 0.06mm 0.03kPa 11737m 1.7m/s 1.5m/s
21:00 ☾
1% 5.9°C 0mm 98% 0cm 7° 6.1°C 0mm 0.02kPa 5537m 1.8m/s 1.5m/s
22:00 ☾
1% 5.8°C 0mm 98% 0cm -0.12° 6.2°C 0mm 0.02kPa 10672m 1.5m/s 1.2m/s
23:00 ☾
1% 5.8°C 0mm 97% 0cm -7° 6.2°C 0mm 0.02kPa 15807m 1.2m/s 0.96m/s
Wed, May 27 Sunrise 05:36 Sunset 22:02
24:00 ☾
1% 5.8°C 0mm 97% 0cm -12° 6.2°C 0mm 0.03kPa 20942m 0.84m/s 0.68m/s
01:00 ☾
1% 5.9°C 0mm 92% 0cm -15° 7.1°C 0mm 0.08kPa 22006m 0.84m/s 0.7m/s
02:00 ☾
2% 6°C 0mm 87% 0cm -15° 8°C 0mm 0.14kPa 23071m 0.83m/s 0.73m/s
03:00 ☾
2% 6°C 0mm 82% 0cm -14° 8.9°C 0mm 0.21kPa 24135m 0.83m/s 0.76m/s
04:00 ☾
2% 6.3°C 0.003mm 76% 0cm -10° 10°C 0.04mm 0.31kPa 24135m 0.71m/s 0.78m/s
05:00 ☾
3% 6.5°C 0.007mm 70% 0cm -4.7° 12°C 0.08mm 0.42kPa 24135m 0.59m/s 0.79m/s
06:00
3% 6.5°C 0.01mm 64% 0cm 2.4° 13°C 0.13mm 0.55kPa 24135m 0.47m/s 0.81m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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