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Rule Fog Hunter

Brevard - Fog Hunter - Smoky Mountains & Blue Ridge

Brevard, North Carolina, United States

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
Dewpoint Spread11.1°C
Visibility24135 (Clear)
Relative Humidity51%
Wind Speed1.4m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/New_York

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 namesake "smoke" that gives the Great Smoky Mountains their name—the natural fog and mist that creates atmospheric conditions found nowhere else in the eastern United States. We combine humidity, temperature, and topography to predict when valleys will fill with fog while ridgelines glow above.

The Smokies generate their own weather. Dense forests release moisture through transpiration, creating the persistent haze that appears as blue smoke from a distance. Add morning temperature inversions, and valleys like Cades Cove become fog-filled bowls with mountain ridges emerging from the mist. This phenomenon occurs year-round but peaks during autumn when humidity remains high and temperatures drop.

What makes Smoky Mountains fog photography exceptional:

  • Natural smoke effect - Forest transpiration creates the blue haze that's visible even on clear days, intensifying during foggy conditions
  • Cades Cove mornings - Historic valley becomes a sea of fog with churches and barns emerging as islands
  • Blue Ridge Parkway inversions - High-elevation overlooks look down on clouds filling valleys below
  • Appalachian character - Fog transforms familiar mountain landscapes into ancient, primeval scenes

Best fog occurs on clear, calm nights followed by sunny mornings, typically September through November. Arrive at Cades Cove before dawn to catch fog at its thickest. Blue Ridge Parkway overlooks like Clingmans Dome and Waterrock Knob offer views above the clouds. The fog typically burns off by mid-morning, so timing is critical.

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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/New_York
Fog Probability
≥ 75.0%
Wed, Jul 8
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%
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13:000%
14:000%
15:000%
16:000%
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20:000%
21:000%
22:000%
23:000%
Fri, Jul 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%
20:000%
21:000%
22:000%
23:000%
Sat, Jul 11
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:000%
07:000%
08:000%
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/New_York
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 06:23 Sunset 20:48
10:00
100% 15°C 0mm 51% 0cm 42° 26°C 0mm 1.7kPa 24135m 3.8m/s 1.4m/s
11:00
100% 15°C 0mm 44% 0cm 54° 28°C 0mm 2.1kPa 24135m 3.4m/s 1.4m/s
12:00
100% 15°C 0mm 41% 0cm 65° 29°C 0mm 2.3kPa 24135m 3.8m/s 2.4m/s
13:00
100% 14°C 0mm 38% 0cm 75° 30°C 0mm 2.6kPa 24135m 4.2m/s 2.9m/s
14:00
100% 13°C 0mm 34% 0cm 76° 31°C 0mm 2.9kPa 24134m 4.6m/s 3.3m/s
15:00
99% 13°C 0mm 33% 0cm 68° 31°C 0mm 3.1kPa 24134m 4.9m/s 3.6m/s
16:00
97% 15°C 0mm 41% 0cm 56° 29°C 0mm 2.4kPa 24134m 4.5m/s 3.2m/s
17:00
96% 16°C 0mm 50% 0cm 44° 27°C 0mm 1.8kPa 24135m 3.9m/s 2.2m/s
18:00
94% 15°C 0mm 46% 0cm 32° 28°C 0mm 2kPa 24134m 4.6m/s 2.5m/s
19:00
92% 16°C 0mm 60% 0cm 20° 24°C 0mm 1.2kPa 24134m 4m/s 2m/s
20:00
90% 17°C 0mm 66% 0cm 8.2° 23°C 0mm 0.97kPa 24135m 4.8m/s 2.2m/s
21:00
91% 16°C 0mm 68% 0cm -2.8° 22°C 0mm 0.81kPa 24135m 1.9m/s 2m/s
22:00
92% 15°C 0mm 71% 0cm -13° 20°C 0mm 0.69kPa 24135m 1.8m/s 2m/s
23:00
93% 15°C 0mm 71% 0cm -22° 20°C 0mm 0.66kPa 24134m 1.9m/s 2.1m/s
Thu, Jul 9 Sunrise 06:24 Sunset 20:47
24:00
95% 14°C 0mm 73% 0cm -28° 19°C 0mm 0.61kPa 24134m 1.6m/s 1.9m/s
01:00
97% 15°C 0mm 75% 0cm -32° 19°C 0mm 0.56kPa 24134m 1.6m/s 1.8m/s
02:00
99% 15°C 0mm 77% 0cm -32° 19°C 0mm 0.5kPa 24135m 1.7m/s 1.9m/s
03:00
99% 15°C 0mm 79% 0cm -29° 18°C 0mm 0.45kPa 24135m 1.8m/s 2m/s
04:00
99% 15°C 0mm 81% 0cm -23° 18°C 0mm 0.39kPa 24134m 1.9m/s 2.2m/s
05:00
99% 15°C 0mm 84% 0cm -15° 18°C 0mm 0.33kPa 24135m 2m/s 2.3m/s
06:00
94% 15°C 0mm 84% 0cm -5° 18°C 0mm 0.32kPa 24134m 1.8m/s 2.1m/s
07:00
89% 15°C 0mm 84% 0cm 5.9° 18°C 0mm 0.32kPa 24135m 1.7m/s 2m/s
08:00
84% 16°C 0mm 76% 0cm 17° 21°C 0mm 0.6kPa 24135m 2.2m/s 1.4m/s
09:00
76% 16°C 0mm 59% 0cm 29° 24°C 0mm 1.2kPa 24134m 5.8m/s 1.5m/s
10:00
69% 15°C 0mm 50% 0cm 42° 26°C 0mm 1.7kPa 24135m 6.6m/s 2.9m/s
11:00
61% 15°C 0mm 45% 0cm 54° 27°C 0mm 2kPa 24135m 6.7m/s 3.8m/s
12:00
61% 15°C 0mm 43% 0cm 65° 28°C 0mm 2.2kPa 24134m 6m/s 3.9m/s
13:00
62% 15°C 0mm 41% 0cm 75° 29°C 0mm 2.4kPa 24135m 6.2m/s 4.1m/s
14:00
62% 15°C 0mm 41% 0cm 76° 29°C 0mm 2.4kPa 24135m 6.2m/s 4.2m/s
15:00
53% 14°C 0mm 36% 0cm 68° 30°C 0mm 2.8kPa 24134m 7.2m/s 4.3m/s
16:00
45% 15°C 0mm 40% 0cm 56° 29°C 0mm 2.4kPa 24135m 6.3m/s 5m/s
17:00
36% 16°C 0mm 57% 0cm 44° 25°C 0mm 1.4kPa 24135m 7.7m/s 3.4m/s
18:00
34% 16°C 0mm 50% 0cm 32° 27°C 0mm 1.8kPa 24135m 6m/s 3.4m/s
19:00
32% 16°C 0mm 55% 0cm 20° 26°C 0mm 1.5kPa 24135m 6.2m/s 3.1m/s
20:00
30% 18°C 0mm 70% 0cm 8.2° 23°C 0mm 0.85kPa 24135m 3.7m/s 2m/s
21:00
40% 17°C 0mm 75% 0cm -2.8° 21°C 0mm 0.64kPa 24135m 1.8m/s 2m/s
22:00
50% 16°C 0mm 77% 0cm -13° 20°C 0mm 0.55kPa 24135m 1.6m/s 1.9m/s
23:00
60% 15°C 0mm 77% 0cm -22° 19°C 0mm 0.51kPa 24134m 1.9m/s 2.2m/s
Fri, Jul 10 Sunrise 06:24 Sunset 20:47
24:00
61% 15°C 0mm 77% 0cm -28° 19°C 0mm 0.5kPa 24135m 1.9m/s 2.1m/s
01:00
62% 15°C 0mm 78% 0cm -32° 19°C 0mm 0.48kPa 24134m 1.9m/s 2.2m/s
02:00
63% 15°C 0mm 80% 0cm -32° 19°C 0mm 0.42kPa 24135m 1.9m/s 2.1m/s
03:00
65% 15°C 0mm 83% 0cm -29° 18°C 0mm 0.35kPa 24134m 1.9m/s 2.1m/s
04:00
67% 15°C 0mm 83% 0cm -23° 18°C 0mm 0.35kPa 24134m 1.9m/s 2.1m/s
05:00
69% 15°C 0mm 83% 0cm -15° 18°C 0mm 0.35kPa 24135m 2m/s 2.2m/s
06:00
65% 16°C 0mm 84% 0cm -5.1° 18°C 0mm 0.34kPa 24134m 2m/s 2.3m/s
07:00
61% 16°C 0mm 85% 0cm 5.8° 18°C 0mm 0.31kPa 24134m 1.9m/s 2.2m/s
08:00
57% 17°C 0mm 78% 0cm 17° 21°C 0mm 0.55kPa 24134m 3m/s 1.7m/s
09:00
52% 16°C 0mm 59% 0cm 29° 25°C 0mm 1.3kPa 24135m 8.2m/s 2.5m/s
10:00
48% 16°C 0mm 52% 0cm 41° 27°C 0mm 1.7kPa 24134m 8.3m/s 4.1m/s
11:00
43% 16°C 0mm 47% 0cm 54° 28°C 0mm 2kPa 24134m 8m/s 4.9m/s
12:00
40% 15°C 0mm 43% 0cm 65° 29°C 0mm 2.2kPa 24135m 7.3m/s 4.6m/s
13:00
36% 14°C 0mm 38% 0cm 75° 30°C 0mm 2.6kPa 24135m 6.8m/s 4.1m/s
14:00
33% 14°C 0mm 35% 0cm 76° 31°C 0mm 2.9kPa 24135m 6.8m/s 4.5m/s
15:00
23% 16°C 0mm 46% 0cm 68° 29°C 0.08mm 2.1kPa 22424m 5.1m/s 3.6m/s
16:00
14% 18°C 0mm 58% 0cm 56° 27°C 0.17mm 1.5kPa 20713m 3.5m/s 2.8m/s
17:00
4% 19°C 0mm 69% 0cm 44° 25°C 0.25mm 0.95kPa 19003m 1.8m/s 1.9m/s
18:00
4% 19°C 0mm 72% 0cm 32° 24°C 0.31mm 0.82kPa 20713m 1.8m/s 1.9m/s
19:00
3% 19°C 0mm 76% 0cm 20° 23°C 0.38mm 0.69kPa 22424m 1.8m/s 1.8m/s
20:00
3% 19°C 0mm 79% 0cm 8.1° 23°C 0.44mm 0.57kPa 24135m 1.7m/s 1.8m/s
21:00
8% 19°C 0mm 80% 0cm -2.9° 23°C 0.6mm 0.55kPa 24135m 1.7m/s 1.7m/s
22:00
14% 19°C 0mm 81% 0cm -13° 23°C 0.77mm 0.54kPa 24135m 1.7m/s 1.6m/s
23:00
19% 20°C 0mm 81% 0cm -22° 23°C 0.94mm 0.52kPa 24135m 1.6m/s 1.5m/s
Sat, Jul 11 Sunrise 06:25 Sunset 20:47
24:00
17% 20°C 0mm 83% 0cm -28° 23°C 1.1mm 0.48kPa 24135m 1.4m/s 1.2m/s
01:00
16% 21°C 0mm 85% 0cm -32° 23°C 1.3mm 0.44kPa 24135m 1.1m/s 0.98m/s
02:00
14% 21°C 0mm 86% 0cm -32° 23°C 1.4mm 0.39kPa 24135m 0.82m/s 0.72m/s
03:00
13% 21°C 0mm 75% 0cm -29° 26°C 0.96mm 0.84kPa 24135m 2.1m/s 1.3m/s
04:00
11% 21°C 0mm 63% 0cm -23° 28°C 0.48mm 1.4kPa 24135m 3.3m/s 2m/s
05:00
10% 19°C 0mm 51% 0cm -15° 31°C 0mm 2.1kPa 24135m 4.5m/s 2.6m/s
06:00
9% 19°C 0mm 45% 0cm -5.2° 32°C 0mm 2.6kPa 24135m 4.7m/s 3m/s
07:00
7% 18°C 0mm 40% 0cm 5.7° 33°C 0mm 3.1kPa 24135m 4.9m/s 3.3m/s
08:00
6% 16°C 0mm 34% 0cm 17° 35°C 0mm 3.6kPa 24135m 5.1m/s 3.6m/s
09:00
11% 18°C 0mm 43% 0cm 29° 32°C 0.13mm 2.7kPa 22355m 6.8m/s 4.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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