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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
100%
Dewpoint Spread0.3°C
Visibility1553 (Mist/Haze)
Relative Humidity98%
Wind Speed0.5m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Edmonton
fog weather icon
Next opportunity
Dense Fog
Miette
Today · 01:00–05:00 · 4h window
High confidence
100%
🌫️Fog Probability91.1-100%
Dewpoint Spread: 0.3°C
Visibility: 1553 (Mist/Haze)
Relative Humidity: 98%
Wind Speed: 0.5m/s (calm conditions)
fog weather icon
Moderate Fog at Sunrise
Miette
Today · 07:00–08:00
🌫️Fog Probability:84.8%
High
fog weather icon
Dense Fog
Miette
Tomorrow · 22:00–06:00
🌫️Fog Probability:61.4-100%
High
fog weather icon
Dense Fog at Sunrise
Miette
Sat, Apr 11 · 06:00–07:00
🌫️Fog Probability:100%
High
fog weather icon
Moderate Fog
Miette
Sun, Apr 12 · 17:00–22:00
🌫️Fog Probability:63.8-84.5%
Medium
fog weather icon
Moderate Fog
Miette
Mon, Apr 13 · 22:00–23:00
🌫️Fog Probability:61.4%
Low
fog weather icon
Dense Fog
Miette
Wed, Apr 15 · 20:00–23:00
🌫️Fog Probability:93.6-98.5%
High
+1 more windows in the next 10 days

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
16matching hours in the next 95 hoursJump to next match
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Edmonton
Fog Probability
≥ 60.0%
Wed, Apr 8
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%
20:0030%
21:000%
22:000%
23:000%
Thu, Apr 9
24:000%
01:00100%
02:00100%
03:0097%
04:0091%
05:0051%
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%
21:0043%
22:0061%
23:0078%
Sat, Apr 11
24:0089%
01:0089%
02:00100%
03:00100%
04:00100%
05:00100%
06:00100%
07:000%
08:000%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:0051%
16:0023%
17:0021%
18:0026%
19:0028%
20:0032%
21:0030%
22:0030%
23:0030%
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
Thu, Apr 9 Sunrise 07:06 Sunset 20:39
01:00 ☾
10% -4.6°C 0.07mm 98% 0cm -28° -4.3°C 0.13mm 0.01kPa 1553m 0.81m/s 0.49m/s
02:00 ☾
15% -5.5°C 0.03mm 98% 0cm -29° -5.3°C 0.19mm 0.01kPa 2188m 0.31m/s 0.35m/s
03:00 ☾
20% -6.2°C 0.01mm 98% 0cm -28° -5.9°C 0.19mm 0.01kPa 2929m 0.92m/s 1m/s
04:00 ☾
21% -6.7°C 0.01mm 97% 0cm -23° -6.4°C 0.19mm 0.01kPa 4637m 1.1m/s 1.2m/s
05:00 ☾
23% -7°C 0.01mm 97% 0cm -17° -6.7°C 0.25mm 0.01kPa 4459m 1.1m/s 1.3m/s
06:00 ☾
24% -7.2°C 0.01mm 97% 0cm -10° -6.9°C 0.25mm 0.01kPa 5853m 1.2m/s 1.4m/s
07:00 ☾
36% -7.6°C 0mm 97% 0cm -1.5° -7.2°C 0mm 0.01kPa 9194m 1.2m/s 1.6m/s
08:00 ☾
48% -6.9°C 0mm 94% 0cm 7.3° -6.1°C 0mm 0.02kPa 22781m 1.5m/s 1.4m/s
09:00 ☾
60% -5.6°C 0mm 86% 0cm 16° -3.7°C 0mm 0.06kPa 24135m 1.7m/s 1.3m/s
10:00 ☾
53% -4.7°C 0mm 80% 0cm 25° -1.8°C 0mm 0.11kPa 24134m 1.9m/s 1.4m/s
11:00 ☾
47% -3.9°C 0mm 76% 0cm 33° -0.16°C 0mm 0.15kPa 24135m 2m/s 1.5m/s
12:00 ☾
40% -3.5°C 0mm 71% 0cm 39° 1.2°C 0mm 0.2kPa 23870m 2.2m/s 1.6m/s
13:00 ☾
27% -3.4°C 0mm 65% 0cm 43° 2.6°C 0mm 0.26kPa 23861m 2.6m/s 1.7m/s
14:00 ☾
13% -3.5°C 0mm 60% 0cm 45° 3.6°C 0.06mm 0.32kPa 24135m 3.2m/s 2m/s
15:00 ☾
0% -3.6°C 0mm 55% 0cm 43° 4.6°C 0.06mm 0.38kPa 24134m 3.1m/s 1.7m/s
16:00 ☾
0% -3.8°C 0mm 52% 0cm 38° 5.1°C 0.06mm 0.42kPa 24134m 3m/s 1.5m/s
17:00 ☾
1% -4°C 0mm 50% 0cm 31° 5.5°C 0.06mm 0.45kPa 24135m 2.9m/s 1.2m/s
18:00 ☾
1% -4°C 0mm 51% 0cm 23° 5.3°C 0.06mm 0.44kPa 24134m 2.7m/s 1.1m/s
19:00 ☾
8% -0.8°C 0mm 69% 0cm 14° 4.5°C 0mm 0.26kPa 24135m 0.84m/s 0.97m/s
20:00 ☾
14% -1.3°C 0mm 86% 0cm 5.5° 0.74°C 0mm 0.09kPa 24135m 1m/s 1.3m/s
21:00 ☾
21% -3.8°C 0mm 91% 0cm -3.3° -2.6°C 0mm 0.04kPa 24135m 1.5m/s 1.9m/s
22:00 ☾
23% -4.5°C 0mm 90% 0cm -12° -3.1°C 0mm 0.05kPa 24134m 1.7m/s 2.2m/s
23:00 ☾
26% -4.7°C 0mm 89% 0cm -19° -3.1°C 0mm 0.05kPa 24135m 1.7m/s 2.3m/s
Fri, Apr 10 Sunrise 07:03 Sunset 20:41
24:00 ☾
28% -4.8°C 0mm 88% 0cm -24° -3.1°C 0mm 0.06kPa 24135m 1.8m/s 2.4m/s
01:00 ☾
35% -5.2°C 0mm 89% 0cm -28° -3.6°C 0mm 0.05kPa 24134m 1.9m/s 2.5m/s
02:00 ☾
42% -5.4°C 0mm 89% 0cm -29° -3.8°C 0mm 0.05kPa 24134m 2.7m/s 2.5m/s
03:00 ☾
49% -5.5°C 0mm 89% 0cm -27° -3.9°C 0mm 0.05kPa 24135m 2.7m/s 2.5m/s
04:00 ☾
54% -5.7°C 0mm 90% 0cm -23° -4.2°C 0mm 0.05kPa 24135m 1.9m/s 2.4m/s
05:00 ☾
59% -5.8°C 0mm 90% 0cm -17° -4.5°C 0mm 0.04kPa 24135m 1.8m/s 2.4m/s
06:00 ☾
64% -6.1°C 0mm 90% 0cm -9.7° -4.7°C 0mm 0.04kPa 24135m 1.8m/s 2.4m/s
07:00 ☾
70% -6.2°C 0mm 90% 0cm -1.1° -4.8°C 0mm 0.04kPa 24135m 1.8m/s 2.4m/s
08:00 ☾
77% -5.5°C 0mm 86% 0cm 7.6° -3.5°C 0mm 0.07kPa 24134m 2.5m/s 2.4m/s
09:00 ☾
83% -4.4°C 0mm 74% 0cm 17° -0.35°C 0mm 0.15kPa 24135m 2.7m/s 2.2m/s
10:00 ☾
82% -3.8°C 0mm 66% 0cm 25° 1.9°C 0mm 0.24kPa 24134m 2.5m/s 1.9m/s
11:00 ☾
80% -3.4°C 0mm 60% 0cm 33° 3.7°C 0mm 0.32kPa 24135m 2.3m/s 1.8m/s
12:00 ☾
79% -3.2°C 0mm 54% 0cm 39° 5.3°C 0mm 0.41kPa 24134m 2.1m/s 1.6m/s
13:00 ☾
72% -3°C 0mm 49% 0cm 44° 6.9°C 0mm 0.51kPa 24135m 1.9m/s 1.4m/s
14:00 ☾
64% -2.9°C 0mm 46% 0cm 45° 7.9°C 0mm 0.57kPa 24135m 1.6m/s 1.2m/s
15:00 ☾
57% -2.8°C 0mm 45% 0cm 43° 8.5°C 0mm 0.61kPa 24134m 1.5m/s 1.1m/s
16:00 ☾
54% -2.7°C 0mm 45% 0cm 38° 8.6°C 0mm 0.62kPa 24135m 1.7m/s 1.3m/s
17:00 ☾
51% -2.1°C 0mm 48% 0cm 31° 8.4°C 0mm 0.58kPa 24135m 1.7m/s 1.8m/s
18:00 ☾
48% -0.4°C 0mm 57% 0cm 23° 7.5°C 0mm 0.44kPa 24134m 2m/s 2.1m/s
19:00 ☾
41% 2.2°C 0mm 81% 0cm 15° 5.2°C 0mm 0.17kPa 24135m 1.5m/s 1.7m/s
20:00 ☾
33% 1.4°C 0mm 94% 0cm 5.7° 2.3°C 0mm 0.05kPa 24134m 1.1m/s 1.2m/s
21:00 ☾
26% -1.2°C 0mm 94% 0cm -3.1° -0.36°C 0mm 0.03kPa 24135m 1m/s 1m/s
22:00 ☾
22% -1.7°C 0mm 96% 0cm -11° -1.1°C 0mm 0.02kPa 24134m 1.1m/s 1.3m/s
23:00 ☾
19% -1.9°C 0mm 97% 0cm -18° -1.5°C 0mm 0.02kPa 24135m 1.2m/s 1.3m/s
Sat, Apr 11 Sunrise 07:01 Sunset 20:43
24:00 ☾
15% -1.8°C 0mm 97% 0cm -24° -1.4°C 0mm 0.01kPa 24135m 1.2m/s 1.3m/s
01:00 ☾
10% -1.3°C 0mm 98% 0cm -27° -0.95°C 0mm 0.01kPa 23767m 0.92m/s 0.96m/s
02:00 ☾
5% -1.2°C 0mm 98% 0cm -28° -0.92°C 0mm 0.01kPa 6952m 1.4m/s 1.1m/s
03:00 ☾
0% -1.1°C 0mm 99% 0cm -27° -1°C 0mm 0.01kPa 524m 1m/s 0.67m/s
04:00 ☾
0% -0.5°C 0mm 99% 0cm -23° -0.35°C 0mm 0.01kPa 244m 0.91m/s 0.69m/s
05:00 ☾
0% -0.5°C 0.01mm 99% 0cm -17° -0.31°C 0mm 0.01kPa 163m 1.2m/s 0.89m/s
06:00 ☾
0% -0.5°C 0.03mm 100% 0.03cm -9.3° -0.41°C 0mm 0kPa 128m 1.2m/s 0.95m/s
07:00 ☾
0% -0.5°C 0.02mm 91% 0.02cm -0.69° 0.82°C 0mm 0.06kPa 8130m 1.3m/s 1.4m/s
08:00 ☾
0% -0.6°C 0.02mm 82% 0.01cm 7.9° 2.1°C 0mm 0.12kPa 16133m 1.4m/s 1.8m/s
09:00 ☾
0% -0.9°C 0.01mm 74% 0cm 17° 3.3°C 0mm 0.2kPa 24135m 1.5m/s 2.2m/s
10:00 ☾
0% -1°C 0.01mm 75% 0cm 26° 2.9°C 0.02mm 0.18kPa 24135m 1.9m/s 2.3m/s
11:00 ☾
0% -1°C 0.01mm 77% 0cm 33° 2.6°C 0.04mm 0.17kPa 24135m 2.3m/s 2.5m/s
12:00 ☾
0% -1.1°C 0.01mm 79% 0cm 40° 2.2°C 0.06mm 0.15kPa 24135m 2.7m/s 2.7m/s
13:00 ☾
1% -1.1°C 0.06mm 84% 0.05cm 44° 1.2°C 0.1mm 0.1kPa 17652m 2.7m/s 2.5m/s
14:00 ☾
1% -1.2°C 0.1mm 90% 0.1cm 45° 0.24°C 0.15mm 0.06kPa 11169m 2.7m/s 2.4m/s
15:00 ☾
2% -1.3°C 0.15mm 96% 0.15cm 43° -0.75°C 0.19mm 0.02kPa 4686m 2.7m/s 2.3m/s
16:00 ☾
1% -2°C 0.15mm 95% 0.15cm 39° -1.4°C 0.38mm 0.03kPa 3247m 2.9m/s 2.5m/s
17:00 ☾
1% -2.7°C 0.15mm 95% 0.15cm 32° -2°C 0.56mm 0.03kPa 1807m 3.1m/s 2.7m/s
18:00 ☾
0% -3.4°C 0.15mm 94% 0.15cm 24° -2.6°C 0.75mm 0.03kPa 368m 3.3m/s 2.9m/s
19:00 ☾
0% -3.8°C 0.13mm 94% 0.13cm 15° -3°C 0.6mm 0.03kPa 597m 3.1m/s 2.7m/s
20:00 ☾
1% -4.3°C 0.1mm 94% 0.11cm 6° -3.4°C 0.46mm 0.03kPa 825m 2.9m/s 2.4m/s
21:00 ☾
1% -4.7°C 0.08mm 94% 0.09cm -2.8° -3.9°C 0.31mm 0.03kPa 1054m 2.6m/s 2.1m/s
22:00 ☾
1% -4.9°C 0.07mm 93% 0.07cm -11° -4°C 0.38mm 0.03kPa 1403m 2.5m/s 2.1m/s
23:00 ☾
0% -5.1°C 0.05mm 93% 0.05cm -18° -4.1°C 0.44mm 0.03kPa 1752m 2.4m/s 2m/s
Sun, Apr 12 Sunrise 06:59 Sunset 20:45
24:00 ☾
0% -5.3°C 0.04mm 93% 0.04cm -24° -4.3°C 0.5mm 0.03kPa 2100m 2.3m/s 2m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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