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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 Spread2.4°C
Visibility3462 (Mist/Haze)
Relative Humidity84%
Wind Speed1.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Edmonton
fog weather icon
Next opportunity
Moderate Fog
Miette
Today · 21:00–22:00 · 1h window
Medium confidence
50%
🌫️Fog Probability61.4%
Dewpoint Spread: 0.1°C
Visibility: 351 (Fog)
Relative Humidity: 99%
Wind Speed: 1.4m/s (calm conditions)
fog weather icon
Dense Fog
Miette
Tomorrow · 01:00–02:00
🌫️Fog Probability:100%
High
fog weather icon
Moderate Fog at Sunrise
Miette
Tomorrow · 07:00–08:00
🌫️Fog Probability:84.8%
High
fog weather icon
Dense Fog
Miette
Fri, Apr 10 · 22:00–04:00
🌫️Fog Probability:61.4-88.6%
Medium
fog weather icon
Moderate Fog
Miette
Sat, Apr 11 · 15:00–18:00
🌫️Fog Probability:64.8-66.8%
Low

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
17matching hours in the next 92 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Edmonton
Fog Probability
≥ 60.0%
Tue, Apr 7
22:0096%
23:00100%
Wed, Apr 8
24:0094%
01:0094%
02:0061%
03:0046%
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%
20:0025%
21:0061%
22:000%
23:000%
Thu, Apr 9
24:000%
01:00100%
02:0059%
03:0059%
04:0057%
05:0053%
06:0051%
07:0085%
08:0046%
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%
Fri, Apr 10
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%
20:0043%
21:0050%
22:0061%
23:0078%
Sat, Apr 11
24:0089%
01:0078%
02:0068%
03:0067%
04:000%
05:000%
06:000%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:0065%
16:0065%
17:0067%
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
Wed, Apr 8 Sunrise 07:06 Sunset 20:39
19:00 ☾
0% -2.6°C 0.02mm 84% 0.23cm 14° -0.25°C 0.38mm 0.1kPa 3462m 1.1m/s 1.5m/s
20:00 ☾
0% -2.4°C 0.11mm 94% 0.29cm 5.2° -1.5°C 0.69mm 0.03kPa 4941m 1.8m/s 1.5m/s
21:00 ☾
0% -4.1°C 0.2mm 99% 0.3cm -3.6° -4°C 0.94mm 0.01kPa 351m 1.1m/s 1.4m/s
22:00 ☾
0% -3.8°C 0.22mm 99% 0.23cm -12° -3.7°C 1.2mm 0.01kPa 131m 1.7m/s 1.4m/s
23:00 ☾
0% -3.2°C 0.26mm 98% 0.26cm -19° -2.9°C 1.4mm 0.01kPa 139m 1.7m/s 1.4m/s
Thu, Apr 9 Sunrise 07:06 Sunset 20:39
24:00 ☾
0% -3.5°C 0.22mm 98% 0.22cm -25° -3.2°C 1.7mm 0.01kPa 175m 1.7m/s 1.2m/s
01:00 ☾
0% -4°C 0.11mm 98% 0.11cm -28° -3.8°C 0.19mm 0.01kPa 482m 1.3m/s 1m/s
02:00 ☾
0% -5°C 0.06mm 99% 0cm -29° -4.9°C 0.31mm 0kPa 1649m 0.6m/s 0.36m/s
03:00 ☾
0% -5.9°C 0.04mm 99% 0cm -28° -5.8°C 0.31mm 0.01kPa 1933m 0.5m/s 0.61m/s
04:00 ☾
0% -6.5°C 0.02mm 98% 0cm -23° -6.2°C 0.38mm 0.01kPa 2893m 0.8m/s 1m/s
05:00 ☾
0% -6.9°C 0.01mm 98% 0cm -17° -6.7°C 0.38mm 0.01kPa 3654m 1m/s 1.2m/s
06:00 ☾
0% -7.5°C 0.01mm 98% 0cm -10° -7.1°C 0.44mm 0.01kPa 3844m 1.1m/s 1.4m/s
07:00 ☾
7% -7.4°C 0mm 97% 0cm -1.5° -7°C 0mm 0.01kPa 8431m 1.2m/s 1.5m/s
08:00 ☾
15% -7°C 0mm 94% 0cm 7.3° -6.3°C 0mm 0.02kPa 24134m 1.5m/s 1.5m/s
09:00 ☾
22% -5.6°C 0mm 87% 0cm 16° -3.7°C 0mm 0.06kPa 24135m 1.7m/s 1.3m/s
10:00 ☾
22% -4.7°C 0mm 81% 0cm 25° -1.9°C 0mm 0.1kPa 24134m 1.7m/s 1.3m/s
11:00 ☾
22% -3.9°C 0mm 77% 0cm 33° -0.33°C 0mm 0.14kPa 24134m 1.8m/s 1.4m/s
12:00 ☾
22% -3.4°C 0mm 72% 0cm 39° 1.1°C 0mm 0.19kPa 23851m 2.2m/s 1.6m/s
13:00 ☾
15% -3.3°C 0mm 65% 0cm 43° 2.6°C 0mm 0.25kPa 23696m 2.5m/s 1.7m/s
14:00 ☾
9% -3.3°C 0mm 60% 0cm 45° 3.7°C 0mm 0.32kPa 24134m 3.1m/s 1.9m/s
15:00 ☾
2% -3.6°C 0mm 56% 0cm 43° 4.5°C 0.06mm 0.37kPa 24134m 3m/s 1.8m/s
16:00 ☾
4% -3.6°C 0mm 53% 0cm 38° 5.2°C 0.06mm 0.42kPa 24135m 3m/s 1.4m/s
17:00 ☾
6% -3.9°C 0mm 51% 0cm 31° 5.4°C 0.06mm 0.44kPa 24134m 2.9m/s 1.2m/s
18:00 ☾
8% -3.9°C 0mm 52% 0cm 23° 5.3°C 0.06mm 0.43kPa 24135m 2.5m/s 0.85m/s
19:00 ☾
21% -0.4°C 0mm 71% 0cm 14° 4.4°C 0mm 0.24kPa 24134m 0.6m/s 0.6m/s
20:00 ☾
35% -1.3°C 0mm 88% 0cm 5.5° 0.39°C 0mm 0.07kPa 24134m 0.7m/s 0.75m/s
21:00 ☾
48% -3.6°C 0mm 92% 0cm -3.3° -2.5°C 0mm 0.04kPa 24135m 1.3m/s 1.7m/s
22:00 ☾
49% -4.4°C 0mm 91% 0cm -12° -3.2°C 0mm 0.04kPa 24134m 1.6m/s 2m/s
23:00 ☾
51% -4.5°C 0mm 90% 0cm -19° -3°C 0mm 0.05kPa 24134m 1.7m/s 2.1m/s
Fri, Apr 10 Sunrise 07:03 Sunset 20:41
24:00 ☾
52% -4.8°C 0mm 90% 0cm -24° -3.3°C 0mm 0.05kPa 24135m 1.8m/s 2.4m/s
01:00 ☾
49% -5.1°C 0mm 90% 0cm -28° -3.7°C 0mm 0.05kPa 24134m 1.8m/s 2.4m/s
02:00 ☾
47% -5.4°C 0mm 90% 0cm -29° -4°C 0mm 0.05kPa 24134m 1.9m/s 2.5m/s
03:00 ☾
44% -5.5°C 0mm 89% 0cm -27° -4°C 0mm 0.05kPa 24135m 2.7m/s 2.5m/s
04:00 ☾
48% -5.8°C 0mm 89% 0cm -23° -4.3°C 0mm 0.05kPa 24135m 2.7m/s 2.6m/s
05:00 ☾
53% -5.9°C 0mm 90% 0cm -17° -4.5°C 0mm 0.04kPa 24134m 2.7m/s 2.6m/s
06:00 ☾
57% -6°C 0mm 90% 0cm -9.7° -4.6°C 0mm 0.04kPa 24134m 1.9m/s 2.5m/s
07:00 ☾
68% -6.2°C 0mm 90% 0cm -1.1° -4.9°C 0mm 0.04kPa 24134m 1.9m/s 2.5m/s
08:00 ☾
78% -5.6°C 0mm 86% 0cm 7.6° -3.6°C 0mm 0.07kPa 24134m 2.5m/s 2.4m/s
09:00 ☾
89% -4.4°C 0mm 74% 0cm 17° -0.39°C 0mm 0.15kPa 24134m 2.8m/s 2.2m/s
10:00 ☾
87% -3.7°C 0mm 66% 0cm 25° 2°C 0mm 0.24kPa 24134m 2.6m/s 2.1m/s
11:00 ☾
84% -3.3°C 0mm 60% 0cm 33° 3.8°C 0mm 0.32kPa 24135m 2.5m/s 1.9m/s
12:00 ☾
82% -3.1°C 0mm 54% 0cm 39° 5.4°C 0mm 0.41kPa 24135m 2.2m/s 1.7m/s
13:00 ☾
78% -2.9°C 0mm 50% 0cm 44° 6.9°C 0mm 0.5kPa 24135m 2m/s 1.5m/s
14:00 ☾
73% -2.7°C 0mm 47% 0cm 45° 8°C 0mm 0.57kPa 24134m 1.8m/s 1.3m/s
15:00 ☾
69% -2.6°C 0mm 45% 0cm 43° 8.8°C 0mm 0.63kPa 24135m 1.5m/s 0.98m/s
16:00 ☾
66% -2.7°C 0mm 44% 0cm 38° 8.8°C 0mm 0.63kPa 24134m 1.4m/s 0.86m/s
17:00 ☾
63% -2.2°C 0mm 48% 0cm 31° 8.2°C 0mm 0.57kPa 24135m 1.4m/s 1.4m/s
18:00 ☾
60% 1.2°C 0mm 65% 0cm 23° 7.4°C 0mm 0.36kPa 24134m 2m/s 1.7m/s
19:00 ☾
51% 2.8°C 0mm 82% 0cm 15° 5.6°C 0mm 0.16kPa 24134m 1.4m/s 1.6m/s
20:00 ☾
42% 1.6°C 0mm 94% 0cm 5.7° 2.5°C 0mm 0.04kPa 24134m 1.1m/s 1.2m/s
21:00 ☾
33% -1.1°C 0mm 95% 0cm -3.1° -0.44°C 0mm 0.03kPa 24135m 1.2m/s 1.3m/s
22:00 ☾
28% -1.7°C 0mm 96% 0cm -11° -1.1°C 0mm 0.02kPa 24135m 1.3m/s 1.4m/s
23:00 ☾
24% -1.7°C 0mm 96% 0cm -18° -1.2°C 0mm 0.02kPa 24135m 1.3m/s 1.5m/s
Sat, Apr 11 Sunrise 07:01 Sunset 20:43
24:00 ☾
19% -1.9°C 0mm 97% 0cm -24° -1.5°C 0mm 0.01kPa 23371m 1.3m/s 1.4m/s
01:00 ☾
13% -1.5°C 0.003mm 97% 0cm -27° -1°C 0mm 0.02kPa 16343m 1.4m/s 1.4m/s
02:00 ☾
6% -1.1°C 0.007mm 96% 0cm -28° -0.58°C 0mm 0.02kPa 9316m 1.5m/s 1.5m/s
03:00 ☾
0% -0.7°C 0.01mm 96% 0cm -27° -0.12°C 0mm 0.02kPa 2288m 1.6m/s 1.5m/s
04:00 ☾
0% -0.6°C 0.01mm 92% 0cm -23° 0.52°C 0.02mm 0.05kPa 6817m 1.6m/s 1.6m/s
05:00 ☾
0% -0.6°C 0.01mm 88% 0cm -17° 1.2°C 0.04mm 0.08kPa 11345m 1.6m/s 1.8m/s
06:00 ☾
0% -0.6°C 0.01mm 84% 0cm -9.3° 1.8°C 0.06mm 0.11kPa 15874m 1.6m/s 1.9m/s
07:00 ☾
0% -0.6°C 0.01mm 82% 0cm -0.69° 2.2°C 0.04mm 0.13kPa 18628m 1.7m/s 2.1m/s
08:00 ☾
0% -0.6°C 0.01mm 79% 0cm 7.9° 2.5°C 0.02mm 0.15kPa 21381m 1.7m/s 2.3m/s
09:00 ☾
0% -0.7°C 0.01mm 77% 0cm 17° 2.9°C 0mm 0.17kPa 24135m 1.7m/s 2.5m/s
10:00 ☾
0% -0.8°C 0.01mm 79% 0cm 26° 2.5°C 0.02mm 0.15kPa 24135m 2.1m/s 2.6m/s
11:00 ☾
0% -0.8°C 0.01mm 81% 0cm 33° 2.1°C 0.04mm 0.14kPa 24135m 2.4m/s 2.7m/s
12:00 ☾
0% -0.9°C 0.01mm 83% 0cm 40° 1.7°C 0.06mm 0.12kPa 24135m 2.8m/s 2.7m/s
13:00 ☾
0% -1°C 0.02mm 87% 0.01cm 44° 0.81°C 0.06mm 0.08kPa 17622m 2.8m/s 2.6m/s
14:00 ☾
0% -1.2°C 0.03mm 92% 0.03cm 45° -0.09°C 0.06mm 0.05kPa 11109m 2.8m/s 2.5m/s
15:00 ☾
0% -1.4°C 0.04mm 97% 0.04cm 43° -0.98°C 0.06mm 0.02kPa 4595m 2.7m/s 2.4m/s
16:00 ☾
0% -1.5°C 0.05mm 97% 0.05cm 39° -1.1°C 0.13mm 0.02kPa 3689m 2.7m/s 2.3m/s
17:00 ☾
0% -1.6°C 0.07mm 97% 0.07cm 32° -1.1°C 0.19mm 0.02kPa 2783m 2.6m/s 2.1m/s
18:00 ☾
0% -1.7°C 0.08mm 96% 0.08cm 24° -1.2°C 0.25mm 0.02kPa 1876m 2.6m/s 2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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