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Rule Fog Hunter

Kananaskis - Fog Hunter - Canadian Rockies

Kananaskis, Alberta, Canada

Thick, moody fog for atmospheric forest and landscape shots

No opportunities right now
Here’s what usually blocks matches

No Fog Hunter opportunities in the next 14 days

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Rule requirements (key thresholds)
Fog Probability · ≥ 75.0%

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Fog Probability 100% failing

Currently

Real-time conditions
Fog Probability
0%
Dewpoint Spread9.7°C
Visibility24134 (Clear)
Relative Humidity52%
Wind Speed3.2m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Edmonton

No opportunities in the next 10 days

See the blocker timeline below to understand which conditions are preventing matches.

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
0matching hours in the next 79 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Edmonton
Fog Probability
≥ 75.0%
Tue, Jul 7
23:000%
Wed, Jul 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%
Thu, Jul 9
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%
Fri, Jul 10
24:000%
01:0055%
02:0071%
03:0055%
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%
Sat, Jul 11
24:000%
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
Wed, Jul 8 Sunrise 05:35 Sunset 21:54
07:00
1% 2.3°C 0mm 52% 0cm 11° 12°C 0mm 0.68kPa 24134m 4.1m/s 3.2m/s
08:00
3% 4.3°C 0mm 48% 0cm 20° 15°C 0mm 0.89kPa 24135m 4.2m/s 2.6m/s
09:00
4% 2.3°C 0mm 32% 0cm 29° 19°C 0mm 1.5kPa 24135m 7m/s 2m/s
10:00
4% 2.2°C 0mm 30% 0cm 38° 21°C 0mm 1.7kPa 24135m 7.9m/s 3.3m/s
11:00
3% 2.2°C 0mm 28% 0cm 47° 21°C 0mm 1.8kPa 24135m 8.4m/s 4.6m/s
12:00
3% 1.9°C 0mm 26% 0cm 55° 22°C 0mm 2kPa 24134m 8.6m/s 4.1m/s
13:00
4% 1.8°C 0mm 26% 0cm 60° 23°C 0mm 2kPa 24134m 8.6m/s 5.1m/s
14:00
4% 1.6°C 0mm 25% 0cm 61° 23°C 0mm 2kPa 24134m 8.3m/s 4.8m/s
15:00
5% 1°C 0mm 24% 0cm 58° 23°C 0mm 2.1kPa 24135m 8m/s 4.5m/s
16:00
3% 0.4°C 0mm 24% 0cm 51° 22°C 0mm 2kPa 24134m 6.5m/s 5.1m/s
17:00
2% 0.9°C 0mm 26% 0cm 43° 21°C 0.06mm 1.9kPa 24134m 5.5m/s 4.2m/s
18:00 ☾
0% 2.4°C 0mm 32% 0cm 34° 20°C 0.13mm 1.6kPa 24135m 5.4m/s 2.4m/s
19:00 ☾
14% 4.9°C 0mm 41% 0cm 24° 18°C 0.13mm 1.3kPa 24135m 3.1m/s 1.4m/s
20:00 ☾
29% 8.2°C 0mm 59% 0cm 15° 16°C 0.31mm 0.77kPa 14801m 3.4m/s 1.4m/s
21:00 ☾
43% 9.9°C 0mm 81% 0cm 6.4° 13°C 0.5mm 0.29kPa 24134m 1.8m/s 1.4m/s
22:00 ☾
34% 8.7°C 0mm 90% 0cm -1.3° 10°C 0.56mm 0.13kPa 5950m 1m/s 0.93m/s
23:00 ☾
25% 8.5°C 0mm 94% 0cm -8.1° 9.5°C 0.56mm 0.08kPa 19625m 1m/s 0.91m/s
Thu, Jul 9 Sunrise 05:36 Sunset 21:53
24:00 ☾
16% 8.3°C 0mm 94% 0cm -13° 9.1°C 0.56mm 0.07kPa 17876m 0.91m/s 0.75m/s
01:00 ☾
11% 8.1°C 0mm 93% 0cm -16° 9.1°C 0mm 0.08kPa 24135m 1.4m/s 1.4m/s
02:00 ☾
7% 7.8°C 0mm 90% 0cm -17° 9.3°C 0mm 0.11kPa 24134m 1.7m/s 1.4m/s
03:00 ☾
2% 7.4°C 0mm 90% 0cm -15° 9°C 0mm 0.12kPa 24135m 1.6m/s 1.3m/s
04:00 ☾
1% 6.8°C 0mm 88% 0cm -11° 8.7°C 0mm 0.13kPa 24134m 1.5m/s 1.2m/s
05:00 ☾
1% 6.7°C 0mm 88% 0cm -5° 8.6°C 0mm 0.13kPa 24135m 1.6m/s 1.2m/s
06:00
0% 6.5°C 0mm 92% 0cm 2.4° 7.8°C 0mm 0.09kPa 5518m 1.2m/s 1.4m/s
07:00
0% 7.1°C 0mm 87% 0cm 11° 9.1°C 0mm 0.15kPa 24134m 1.4m/s 0.93m/s
08:00
0% 6.9°C 0mm 79% 0cm 19° 10°C 0mm 0.27kPa 24135m 1.2m/s 0.83m/s
09:00
0% 6.1°C 0mm 67% 0cm 29° 12°C 0mm 0.46kPa 24134m 1.7m/s 0.79m/s
10:00
0% 4.4°C 0mm 48% 0cm 38° 15°C 0mm 0.92kPa 24134m 2.7m/s 0.22m/s
11:00
1% 1.8°C 0mm 32% 0cm 47° 19°C 0mm 1.5kPa 24135m 5.5m/s 0.74m/s
12:00
1% 0°C 0mm 26% 0cm 55° 20°C 0mm 1.8kPa 24135m 6.4m/s 2.9m/s
13:00
3% 0°C 0mm 25% 0cm 60° 21°C 0mm 1.8kPa 24134m 6.9m/s 4.4m/s
14:00
4% 0.3°C 0mm 25% 0cm 61° 21°C 0mm 1.9kPa 24135m 7.5m/s 5m/s
15:00
6% 0.7°C 0mm 25% 0cm 58° 21°C 0mm 1.9kPa 24135m 7.9m/s 5.2m/s
16:00
5% 0.4°C 0mm 24% 0cm 51° 22°C 0mm 1.9kPa 24135m 8.4m/s 4.5m/s
17:00
3% 0.7°C 0mm 26% 0cm 43° 21°C 0mm 1.8kPa 24135m 7.8m/s 5.3m/s
18:00 ☾
2% 0.2°C 0mm 25% 0cm 34° 21°C 0mm 1.8kPa 24135m 7.2m/s 5.4m/s
19:00 ☾
3% 1.4°C 0mm 28% 0cm 24° 20°C 0.06mm 1.7kPa 24135m 5.9m/s 3.9m/s
20:00 ☾
5% 4.9°C 0mm 42% 0cm 15° 18°C 0.13mm 1.2kPa 24135m 5.9m/s 2.5m/s
21:00 ☾
6% 8.2°C 0mm 69% 0cm 6.4° 14°C 0.31mm 0.48kPa 13823m 2.4m/s 1.4m/s
22:00 ☾
4% 7.7°C 0mm 86% 0cm -1.4° 10°C 0.44mm 0.18kPa 24135m 1.2m/s 1.2m/s
23:00 ☾
3% 7.8°C 0mm 92% 0cm -8.2° 9.1°C 0.5mm 0.1kPa 24134m 0.73m/s 0.67m/s
Fri, Jul 10 Sunrise 05:37 Sunset 21:52
24:00 ☾
1% 7.9°C 0mm 94% 0cm -13° 8.8°C 0.5mm 0.07kPa 24135m 0.73m/s 0.78m/s
01:00 ☾
6% 7.9°C 0mm 96% 0cm -16° 8.4°C 0mm 0.04kPa 24032m 0.73m/s 0.79m/s
02:00 ☾
10% 7.9°C 0mm 97% 0cm -17° 8.4°C 0.06mm 0.03kPa 24134m 0.91m/s 0.93m/s
03:00 ☾
15% 8.1°C 0mm 96% 0cm -15° 8.8°C 0.06mm 0.05kPa 24135m 1.4m/s 1.4m/s
04:00 ☾
17% 7.8°C 0mm 94% 0cm -11° 8.8°C 0.06mm 0.07kPa 24134m 1.5m/s 1.6m/s
05:00 ☾
18% 6.9°C 0mm 90% 0cm -5.2° 8.5°C 0.06mm 0.11kPa 24134m 1.4m/s 1.4m/s
06:00
20% 6°C 0mm 85% 0cm 2.3° 8.4°C 0.06mm 0.16kPa 24134m 1.3m/s 1.5m/s
07:00
37% 6.2°C 0mm 79% 0cm 10° 9.5°C 0mm 0.25kPa 24135m 1.5m/s 1.5m/s
08:00
53% 6.4°C 0mm 69% 0cm 19° 12°C 0mm 0.43kPa 24134m 1.5m/s 0.8m/s
09:00
70% 6.1°C 0mm 58% 0cm 29° 14°C 0mm 0.69kPa 24134m 1.4m/s 0.45m/s
10:00
72% 5.3°C 0mm 45% 0cm 38° 17°C 0mm 1.1kPa 24135m 2.7m/s 0.88m/s
11:00
73% 4.3°C 0mm 37% 0cm 47° 19°C 0mm 1.4kPa 24135m 4.6m/s 1m/s
12:00
75% 3.9°C 0mm 32% 0cm 55° 21°C 0mm 1.7kPa 24135m 4.9m/s 0.64m/s
13:00
67% 5.1°C 0mm 39% 0cm 60° 19°C 0mm 1.4kPa 24135m 3.8m/s 1m/s
14:00
58% 5.8°C 0mm 46% 0cm 61° 18°C 0mm 1.1kPa 24135m 2.8m/s 1.4m/s
15:00
50% 6.2°C 0mm 53% 0cm 58° 16°C 0mm 0.84kPa 24135m 1.7m/s 1.9m/s
16:00
42% 5.7°C 0mm 57% 0cm 51° 14°C 0mm 0.69kPa 24135m 1.9m/s 2.2m/s
17:00
34% 5.1°C 0mm 61% 0cm 43° 13°C 0mm 0.57kPa 24135m 2.1m/s 2.5m/s
18:00 ☾
26% 4.5°C 0mm 65% 0cm 34° 11°C 0mm 0.46kPa 24135m 2.3m/s 2.9m/s
19:00 ☾
29% 4.7°C 0mm 68% 0cm 24° 10°C 0mm 0.41kPa 24135m 2.7m/s 2.9m/s
20:00 ☾
33% 4.8°C 0mm 71% 0cm 15° 9.9°C 0mm 0.36kPa 24135m 3m/s 2.9m/s
21:00 ☾
36% 4.9°C 0mm 74% 0cm 6.3° 9.4°C 0mm 0.31kPa 24135m 3.3m/s 3m/s
22:00 ☾
43% 4.8°C 0mm 74% 0cm -1.5° 9.1°C 0mm 0.29kPa 24135m 3.3m/s 3m/s
23:00 ☾
51% 4.8°C 0mm 75% 0cm -8.3° 8.9°C 0mm 0.28kPa 24135m 3.3m/s 2.9m/s
Sat, Jul 11 Sunrise 05:38 Sunset 21:51
24:00 ☾
58% 4.7°C 0mm 76% 0cm -13° 8.6°C 0mm 0.26kPa 24135m 3.2m/s 2.9m/s
01:00 ☾
62% 5.3°C 0mm 67% 0cm -16° 11°C 0mm 0.45kPa 24135m 3.2m/s 2.3m/s
02:00 ☾
65% 5.6°C 0mm 57% 0cm -17° 14°C 0mm 0.69kPa 24135m 3.1m/s 1.8m/s
03:00 ☾
69% 5.5°C 0mm 47% 0cm -15° 17°C 0mm 1kPa 24135m 3m/s 1.2m/s
04:00 ☾
69% 4.7°C 0mm 41% 0cm -11° 18°C 0mm 1.2kPa 24135m 5.6m/s 2.3m/s
05:00 ☾
68% 3.6°C 0mm 35% 0cm -5.3° 19°C 0mm 1.5kPa 24135m 8.2m/s 3.4m/s
06:00
68% 2.1°C 0mm 29% 0cm 2.2° 21°C 0mm 1.8kPa 24135m 11m/s 4.6m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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