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Rule Fog Hunter

Canmore - Fog Hunter - Canadian Rockies

Canmore, 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 Spread2.4°C
Visibility24135 (Clear)
Relative Humidity84%
Wind Speed0.5m/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 80 hours
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%
01:000%
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%
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%
07:000%
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%
Wed, May 27
24:000%
01:000%
02:000%
03:0055%
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 21:37
07:00
5% 1.9°C 0mm 84% 0cm 10° 4.3°C 0mm 0.13kPa 24135m 0.9m/s 0.51m/s
08:00
6% 2.3°C 0mm 76% 0cm 19° 6.1°C 0mm 0.22kPa 24135m 1m/s 0.15m/s
09:00
8% 2.1°C 0mm 64% 0cm 29° 8.4°C 0mm 0.39kPa 24134m 1.9m/s 0.51m/s
10:00
6% 0.6°C 0mm 50% 0cm 38° 11°C 0mm 0.63kPa 24134m 2.7m/s 1.1m/s
11:00
4% -1.1°C 0mm 41% 0cm 47° 12°C 0mm 0.82kPa 24134m 6.4m/s 2.2m/s
12:00
2% -2.3°C 0mm 35% 0cm 54° 13°C 0mm 0.94kPa 24134m 7.2m/s 2.7m/s
13:00
1% -2.4°C 0mm 34% 0cm 59° 13°C 0mm 1kPa 24135m 6.8m/s 3m/s
14:00
1% -2.2°C 0mm 33% 0cm 60° 14°C 0mm 1.1kPa 24134m 7.7m/s 4.2m/s
15:00
0% -1.5°C 0mm 35% 0cm 56° 14°C 0mm 1kPa 24135m 8.3m/s 4.4m/s
16:00
0% -0.7°C 0mm 37% 0cm 49° 14°C 0mm 0.98kPa 24134m 8m/s 3.9m/s
17:00
0% -0.1°C 0mm 40% 0cm 41° 13°C 0mm 0.92kPa 24135m 7.8m/s 3.3m/s
18:00 ☾
0% -0.2°C 0mm 41% 0cm 31° 13°C 0mm 0.88kPa 24135m 7.4m/s 3m/s
19:00 ☾
0% -1.8°C 0mm 35% 0cm 22° 13°C 0mm 1kPa 24135m 9.1m/s 4m/s
20:00 ☾
0% -0.8°C 0mm 40% 0cm 13° 12°C 0mm 0.87kPa 24135m 6.8m/s 2.1m/s
21:00 ☾
0% -0.2°C 0mm 50% 0cm 4.4° 9.7°C 0mm 0.6kPa 24135m 1.2m/s 1.4m/s
22:00 ☾
0% -0.5°C 0mm 54% 0cm -3.5° 8.2°C 0mm 0.5kPa 24134m 1.7m/s 2m/s
23:00 ☾
0% -0.5°C 0mm 60% 0cm -10° 6.8°C 0mm 0.4kPa 24134m 1.9m/s 2.2m/s
Mon, May 25 Sunrise 05:38 Sunset 21:38
24:00 ☾
0% -0.4°C 0mm 62% 0cm -15° 6.3°C 0mm 0.36kPa 24134m 2m/s 2.5m/s
01:00 ☾
0% -0.4°C 0mm 65% 0cm -17° 5.7°C 0mm 0.32kPa 24135m 2.2m/s 2.8m/s
02:00 ☾
0% -0.3°C 0mm 68% 0cm -18° 5.2°C 0mm 0.28kPa 24134m 2.7m/s 2.9m/s
03:00 ☾
0% 0.3°C 0mm 72% 0cm -16° 5°C 0mm 0.25kPa 24135m 2.6m/s 2.9m/s
04:00 ☾
0% 1°C 0mm 76% 0cm -11° 4.9°C 0mm 0.21kPa 24135m 2.6m/s 2.8m/s
05:00 ☾
0% 1.6°C 0mm 80% 0cm -5.4° 4.9°C 0mm 0.18kPa 24134m 2.5m/s 2.7m/s
06:00
0% 2.2°C 0mm 82% 0cm 2.3° 5°C 0mm 0.15kPa 24135m 2.4m/s 2.6m/s
07:00
2% 2.7°C 0mm 78% 0cm 11° 6.3°C 0mm 0.21kPa 24134m 2.7m/s 2.4m/s
08:00
3% 2.7°C 0mm 65% 0cm 20° 9°C 0mm 0.41kPa 24134m 2.6m/s 2.1m/s
09:00
5% 2.3°C 0mm 56% 0cm 29° 11°C 0mm 0.57kPa 24134m 2.7m/s 1.8m/s
10:00
8% 1.5°C 0mm 48% 0cm 38° 12°C 0mm 0.74kPa 24134m 4.1m/s 2m/s
11:00
10% 0.5°C 0mm 40% 0cm 47° 14°C 0mm 0.93kPa 24135m 6.9m/s 2.3m/s
12:00
13% -0.2°C 0mm 35% 0cm 54° 15°C 0mm 1.1kPa 24134m 7.3m/s 2.4m/s
13:00
20% -0.9°C 0mm 32% 0cm 59° 16°C 0mm 1.2kPa 24135m 9.3m/s 3.2m/s
14:00
27% -1.1°C 0mm 30% 0cm 60° 16°C 0mm 1.3kPa 24134m 9.7m/s 4.2m/s
15:00
34% -2°C 0mm 28% 0cm 56° 17°C 0mm 1.4kPa 24135m 10m/s 4.8m/s
16:00
29% -2.9°C 0mm 26% 0cm 49° 17°C 0mm 1.4kPa 24134m 9.7m/s 5.5m/s
17:00
23% -3.4°C 0mm 26% 0cm 41° 16°C 0mm 1.4kPa 24134m 8.7m/s 5.9m/s
18:00 ☾
18% -2.8°C 0mm 28% 0cm 32° 16°C 0mm 1.3kPa 24135m 8.2m/s 4.7m/s
19:00 ☾
15% -3.8°C 0mm 26% 0cm 22° 15°C 0mm 1.3kPa 24134m 9m/s 3.8m/s
20:00 ☾
11% -1.2°C 0mm 36% 0cm 13° 14°C 0mm 1kPa 24135m 2.1m/s 1.9m/s
21:00 ☾
8% -1°C 0mm 42% 0cm 4.5° 11°C 0mm 0.77kPa 24134m 2m/s 2.2m/s
22:00 ☾
6% -1.5°C 0mm 46% 0cm -3.3° 9.7°C 0mm 0.66kPa 24134m 1.9m/s 2.1m/s
23:00 ☾
4% -1.6°C 0mm 48% 0cm -9.8° 8.8°C 0mm 0.59kPa 24134m 1.8m/s 2m/s
Tue, May 26 Sunrise 05:37 Sunset 21:40
24:00 ☾
2% -1.6°C 0mm 48% 0cm -15° 8.6°C 0mm 0.58kPa 24135m 1.5m/s 1.7m/s
01:00 ☾
3% -0.8°C 0mm 50% 0cm -17° 9.2°C 0mm 0.59kPa 24134m 1.4m/s 1.5m/s
02:00 ☾
4% -1.1°C 0mm 55% 0cm -18° 7.3°C 0mm 0.46kPa 24135m 1.4m/s 1.7m/s
03:00 ☾
5% -0.4°C 1.1mm 58% 0cm -16° 7.4°C 0.19mm 0.43kPa 12442m 3m/s 2.9m/s
04:00 ☾
4% 3.7°C 0.26mm 85% 0cm -11° 6.1°C 1.6mm 0.14kPa 23410m 2.6m/s 2.3m/s
05:00 ☾
2% 4.3°C 1.2mm 91% 0cm -5.2° 5.6°C 2.4mm 0.08kPa 11930m 2.3m/s 1.8m/s
06:00
1% 4.8°C 0mm 91% 0cm 2.4° 6.2°C 2.8mm 0.09kPa 24134m 2.8m/s 2.4m/s
07:00
1% 5.1°C 0mm 89% 0cm 11° 6.7°C 0mm 0.11kPa 24134m 2.3m/s 2m/s
08:00
0% 5.4°C 0mm 78% 0cm 20° 9°C 0mm 0.25kPa 24135m 2.1m/s 1.7m/s
09:00
0% 5.9°C 0mm 68% 0cm 29° 12°C 0mm 0.43kPa 24135m 1.8m/s 1.5m/s
10:00
0% 6°C 0mm 58% 0cm 38° 14°C 0mm 0.67kPa 24134m 1.6m/s 1.4m/s
11:00
0% 6°C 0mm 51% 0cm 47° 16°C 0mm 0.9kPa 24135m 1.7m/s 1.3m/s
12:00
0% 5.4°C 0mm 44% 0cm 54° 18°C 0.06mm 1.1kPa 24134m 2.6m/s 1.4m/s
13:00
1% 6.8°C 0mm 57% 0cm 59° 15°C 1mm 0.75kPa 18475m 2.3m/s 1.6m/s
14:00
3% 7.4°C 0mm 70% 0cm 60° 13°C 2mm 0.44kPa 12817m 1.9m/s 1.7m/s
15:00
4% 7.4°C 0mm 83% 0cm 56° 10°C 2.9mm 0.21kPa 7158m 1.6m/s 1.9m/s
16:00
3% 7.2°C 0.007mm 86% 0cm 49° 9.3°C 3mm 0.16kPa 12817m 1.9m/s 1.8m/s
17:00
1% 6.9°C 0.01mm 90% 0cm 41° 8.5°C 3.1mm 0.11kPa 18476m 2.2m/s 1.8m/s
18:00 ☾
0% 6.7°C 0.02mm 94% 0cm 32° 7.7°C 3.3mm 0.07kPa 24135m 2.5m/s 1.7m/s
19:00 ☾
0% 6.9°C 0.21mm 94% 0cm 22° 7.7°C 2.8mm 0.06kPa 19963m 2.4m/s 1.7m/s
20:00 ☾
0% 7.1°C 0.39mm 95% 0cm 13° 7.8°C 2.3mm 0.05kPa 15791m 2.3m/s 1.7m/s
21:00 ☾
0% 7.3°C 0.58mm 96% 0cm 4.7° 7.9°C 1.8mm 0.04kPa 11619m 2.1m/s 1.7m/s
22:00 ☾
0% 7.4°C 0.41mm 97% 0cm -3.1° 7.9°C 2.9mm 0.04kPa 12374m 2.3m/s 1.8m/s
23:00 ☾
0% 7.5°C 0.24mm 97% 0cm -9.6° 8°C 4.1mm 0.03kPa 13128m 2.4m/s 1.8m/s
Wed, May 27 Sunrise 05:36 Sunset 21:41
24:00 ☾
0% 7.7°C 0.07mm 98% 0cm -14° 8°C 5.2mm 0.03kPa 13883m 2.5m/s 1.8m/s
01:00 ☾
0% 7.8°C 0.05mm 97% 0cm -17° 8.2°C 3.5mm 0.03kPa 17300m 2.1m/s 1.6m/s
02:00 ☾
1% 7.9°C 0.02mm 97% 0cm -17° 8.4°C 1.8mm 0.04kPa 20718m 1.6m/s 1.3m/s
03:00 ☾
1% 7.9°C 0mm 96% 0cm -15° 8.5°C 0.06mm 0.04kPa 24135m 1.1m/s 1m/s
04:00 ☾
1% 8.1°C 0mm 93% 0cm -11° 9.1°C 0.1mm 0.08kPa 24135m 1.1m/s 1.1m/s
05:00 ☾
0% 8.2°C 0mm 90% 0cm -5.1° 9.7°C 0.15mm 0.12kPa 24135m 1.2m/s 1.3m/s
06:00
0% 8.3°C 0mm 87% 0cm 2.5° 10°C 0.19mm 0.16kPa 24135m 1.2m/s 1.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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