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Rule Fog Hunter

Asheville - Fog Hunter - Smoky Mountains & Blue Ridge

Asheville, 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 · ≥ 60.0%

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 Spread17.0°C
Visibility24135 (Clear)
Relative Humidity33%
Wind Speed3.4m/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 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/New_York
Fog Probability
≥ 60.0%
Fri, Apr 10
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Sat, Apr 11
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%
Sun, Apr 12
24:000%
01:000%
02:000%
03:000%
04:000%
05:000%
06:0045%
07:0045%
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, Apr 13
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, Apr 14
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%
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
Sat, Apr 11 Sunrise 07:02 Sunset 19:59
15:00
91% 6.9°C 0mm 33% 0cm 56° 24°C 0mm 2kPa 24135m 3.1m/s 3.4m/s
16:00
90% 6.7°C 0mm 33% 0cm 47° 24°C 0mm 2kPa 24134m 3m/s 3.4m/s
17:00
88% 7.1°C 0mm 35% 0cm 35° 23°C 0mm 1.9kPa 24134m 2.7m/s 3.3m/s
18:00
76% 8.2°C 0mm 41% 0cm 24° 22°C 0mm 1.6kPa 24134m 2.5m/s 3m/s
19:00
64% 10°C 0mm 54% 0cm 11° 20°C 0mm 1.1kPa 24135m 5.7m/s 2.6m/s
20:00
52% 10°C 0mm 65% 0cm -0.38° 17°C 0mm 0.67kPa 24134m 1.4m/s 1.4m/s
21:00
55% 10°C 0mm 66% 0cm -12° 16°C 0mm 0.62kPa 24135m 1m/s 0.91m/s
22:00
57% 10°C 0mm 67% 0cm -23° 16°C 0mm 0.6kPa 24135m 0.92m/s 0.84m/s
23:00
60% 10°C 0mm 69% 0cm -33° 16°C 0mm 0.56kPa 24135m 0.61m/s 0.64m/s
Sun, Apr 12 Sunrise 07:01 Sunset 20:00
24:00
64% 10°C 0mm 70% 0cm -41° 16°C 0mm 0.53kPa 24134m 0.4m/s 0.46m/s
01:00
68% 9.7°C 0mm 75% 0cm -45° 14°C 0mm 0.39kPa 24135m 0.91m/s 0.86m/s
02:00
72% 9.4°C 0mm 81% 0cm -45° 13°C 0mm 0.28kPa 24134m 1.2m/s 1.2m/s
03:00
78% 9.3°C 0mm 84% 0cm -41° 12°C 0mm 0.21kPa 24135m 1.4m/s 1.5m/s
04:00
83% 9.5°C 0mm 89% 0cm -33° 11°C 0mm 0.14kPa 24135m 1.1m/s 1.2m/s
05:00
89% 9.6°C 0mm 93% 0cm -24° 11°C 0mm 0.09kPa 24134m 0.9m/s 0.95m/s
06:00
91% 9.5°C 0mm 94% 0cm -13° 10°C 0mm 0.08kPa 24135m 0.71m/s 0.68m/s
07:00
94% 9.5°C 0mm 95% 0cm -0.82° 10°C 0mm 0.06kPa 24135m 1m/s 1.1m/s
08:00
96% 10°C 0mm 89% 0cm 11° 12°C 0mm 0.16kPa 24135m 1.5m/s 1m/s
09:00
92% 11°C 0mm 74% 0cm 23° 15°C 0mm 0.45kPa 24135m 2.4m/s 1.3m/s
10:00
88% 11°C 0mm 64% 0cm 35° 18°C 0mm 0.73kPa 24135m 3.3m/s 2.2m/s
11:00
84% 10°C 0mm 55% 0cm 46° 20°C 0mm 1kPa 24135m 4.6m/s 3.3m/s
12:00
82% 9.8°C 0mm 50% 0cm 56° 21°C 0mm 1.2kPa 24135m 4.9m/s 3.6m/s
13:00
80% 9.2°C 0mm 44% 0cm 62° 22°C 0mm 1.5kPa 24134m 6.8m/s 4.2m/s
14:00
78% 8.2°C 0mm 38% 0cm 62° 23°C 0mm 1.8kPa 24134m 6.4m/s 5m/s
15:00
71% 7.4°C 0mm 35% 0cm 56° 24°C 0mm 1.9kPa 24134m 5.9m/s 5.3m/s
16:00
64% 7.1°C 0mm 35% 0cm 47° 24°C 0mm 1.9kPa 24135m 6m/s 5.5m/s
17:00
57% 7.1°C 0mm 36% 0cm 36° 23°C 0mm 1.8kPa 24135m 5.8m/s 5.4m/s
18:00
51% 7.9°C 0mm 40% 0cm 24° 22°C 0mm 1.6kPa 24135m 6.2m/s 5.1m/s
19:00
46% 8.4°C 0mm 47% 0cm 12° 20°C 0mm 1.2kPa 24135m 8.2m/s 4.5m/s
20:00
40% 8.4°C 0mm 58% 0cm -0.11° 17°C 0mm 0.8kPa 24135m 5m/s 2.4m/s
21:00
32% 8.2°C 0mm 65% 0cm -12° 15°C 0mm 0.58kPa 24135m 1.2m/s 1.2m/s
22:00
24% 7.9°C 0mm 68% 0cm -23° 14°C 0mm 0.51kPa 24135m 1.2m/s 1.1m/s
23:00
16% 7.7°C 0mm 70% 0cm -33° 13°C 0mm 0.45kPa 24135m 1.2m/s 1.2m/s
Mon, Apr 13 Sunrise 07:00 Sunset 20:00
24:00
15% 7.7°C 0mm 71% 0cm -40° 13°C 0mm 0.43kPa 24134m 1.4m/s 1.4m/s
01:00
13% 7.6°C 0mm 73% 0cm -45° 12°C 0mm 0.38kPa 24134m 1m/s 0.95m/s
02:00
12% 7.6°C 0mm 73% 0cm -45° 12°C 0mm 0.39kPa 24135m 1.8m/s 2m/s
03:00
8% 7.8°C 0mm 75% 0cm -41° 12°C 0mm 0.36kPa 24135m 1.6m/s 1.6m/s
04:00
5% 8.1°C 0mm 78% 0cm -33° 12°C 0mm 0.3kPa 24134m 1.5m/s 1.6m/s
05:00
1% 8.3°C 0mm 84% 0cm -23° 11°C 0mm 0.2kPa 24135m 1.3m/s 1.4m/s
06:00
1% 8.5°C 0mm 90% 0cm -13° 10°C 0mm 0.12kPa 24134m 1.2m/s 1.2m/s
07:00
2% 8.6°C 0mm 91% 0cm -0.46° 10°C 0mm 0.11kPa 24135m 1.2m/s 1.2m/s
08:00
2% 9.1°C 0mm 84% 0cm 11° 12°C 0mm 0.22kPa 24135m 1.5m/s 0.9m/s
09:00
3% 9.6°C 0mm 70% 0cm 23° 15°C 0mm 0.51kPa 24135m 2.4m/s 1.1m/s
10:00
3% 9.4°C 0mm 57% 0cm 35° 18°C 0mm 0.88kPa 24135m 5.1m/s 2m/s
11:00
4% 8.1°C 0mm 45% 0cm 47° 20°C 0mm 1.3kPa 24134m 6.1m/s 2.5m/s
12:00
3% 6.6°C 0mm 36% 0cm 57° 22°C 0mm 1.7kPa 24134m 5.8m/s 2.9m/s
13:00
3% 5.1°C 0mm 31% 0cm 63° 23°C 0mm 2kPa 24135m 6m/s 3.6m/s
14:00
2% 5.3°C 0mm 32% 0cm 63° 23°C 0mm 1.9kPa 24135m 5.7m/s 4.2m/s
15:00
2% 5.3°C 0mm 32% 0cm 57° 23°C 0mm 1.9kPa 24134m 5.4m/s 3.5m/s
16:00
3% 5.1°C 0mm 31% 0cm 47° 23°C 0mm 1.9kPa 24135m 5.6m/s 4m/s
17:00
3% 5.9°C 0mm 35% 0cm 36° 22°C 0mm 1.7kPa 24134m 5.4m/s 3.7m/s
18:00
3% 6.9°C 0mm 40% 0cm 24° 21°C 0mm 1.5kPa 24135m 4.7m/s 2.7m/s
19:00
3% 8.5°C 0mm 50% 0cm 12° 19°C 0mm 1.1kPa 24135m 3.8m/s 2m/s
20:00
3% 8.4°C 0mm 58% 0cm 0.09° 17°C 0mm 0.81kPa 24134m 2m/s 1.6m/s
21:00
9% 8.2°C 0mm 64% 0cm -12° 15°C 0mm 0.61kPa 24134m 1.4m/s 1.2m/s
22:00
16% 7.9°C 0mm 70% 0cm -23° 13°C 0mm 0.45kPa 24135m 0.87m/s 0.71m/s
23:00
22% 7.4°C 0mm 76% 0cm -33° 11°C 0mm 0.32kPa 24135m 0.3m/s 0.25m/s
Tue, Apr 14 Sunrise 06:58 Sunset 20:01
24:00
24% 7.6°C 0mm 76% 0cm -40° 12°C 0mm 0.33kPa 24135m 0.42m/s 0.41m/s
01:00
27% 7.9°C 0mm 75% 0cm -44° 12°C 0mm 0.35kPa 24135m 0.54m/s 0.57m/s
02:00
29% 8.2°C 0mm 75% 0cm -44° 13°C 0mm 0.37kPa 24135m 0.66m/s 0.73m/s
03:00
39% 9.2°C 0mm 65% 0cm -40° 16°C 0mm 0.62kPa 24135m 0.68m/s 0.64m/s
04:00
49% 9.8°C 0mm 56% 0cm -33° 19°C 0mm 0.97kPa 24135m 0.69m/s 0.56m/s
05:00
59% 9.9°C 0mm 46% 0cm -23° 22°C 0mm 1.4kPa 24135m 0.71m/s 0.47m/s
06:00
53% 10°C 0mm 43% 0cm -12° 24°C 0mm 1.7kPa 24135m 1.5m/s 0.49m/s
07:00
46% 11°C 0mm 39% 0cm -0.03° 26°C 0mm 2kPa 24135m 2.3m/s 0.51m/s
08:00
40% 11°C 0mm 36% 0cm 12° 27°C 0mm 2.3kPa 24135m 3.1m/s 0.52m/s
09:00
35% 12°C 0mm 41% 0cm 24° 26°C 0mm 2kPa 24135m 2.8m/s 0.58m/s
10:00
30% 13°C 0mm 46% 0cm 36° 25°C 0mm 1.7kPa 24135m 2.6m/s 0.64m/s
11:00
25% 13°C 0mm 52% 0cm 47° 24°C 0mm 1.4kPa 24135m 2.4m/s 0.71m/s
12:00
25% 13°C 0mm 57% 0cm 57° 22°C 0mm 1.1kPa 24135m 2.2m/s 0.66m/s
13:00
25% 13°C 0mm 62% 0cm 63° 20°C 0mm 0.92kPa 24135m 2m/s 0.61m/s
14:00
25% 13°C 0mm 67% 0cm 63° 19°C 0mm 0.72kPa 24135m 1.7m/s 0.56m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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