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Rule Fog Hunter

Banner Elk - Fog Hunter - Smoky Mountains & Blue Ridge

Banner Elk, North Carolina, United States

Thick, moody fog for atmospheric forest and landscape shots

Currently

Real-time conditions
Dewpoint Spread5.6°C
Visibility24135 (Clear)
Relative Humidity66%
Wind Speed1.7m/s (calm conditions)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/New_York
fog weather icon
Next opportunity
Moderate Fog
Banner Elk
Thu, Apr 16 · 23:00–01:00 · 2h window
Low confidence
29%
🌫️Fog Probability62.7-73.8%
Dewpoint Spread: 0.3°C
Visibility: 24135 (Clear)
Relative Humidity: 98%
Wind Speed: 2.6m/s (calm conditions)

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 74 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/New_York
Fog Probability
≥ 60.0%
Thu, Apr 9
24:000%
01:000%
02:000%
03:000%
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07:000%
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Fri, Apr 10
24:000%
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Sat, Apr 11
24:000%
01:000%
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23:0039%
Sun, Apr 12
24:000%
01:000%
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
Thu, Apr 9 Sunrise 07:02 Sunset 19:56
04:00
2% -5°C 0mm 66% 0cm -34° 0.6°C 0mm 0.22kPa 24135m 1.5m/s 1.7m/s
05:00
3% -5.1°C 0mm 68% 0cm -24° 0.001°C 0mm 0.19kPa 24134m 1.4m/s 1.7m/s
06:00
2% -4.9°C 0mm 72% 0cm -13° -0.58°C 0mm 0.16kPa 24135m 1.9m/s 1.6m/s
07:00
1% -4.7°C 0mm 75% 0cm -1° -0.85°C 0mm 0.14kPa 24134m 1.3m/s 1.4m/s
08:00
0% -4.3°C 0mm 67% 0cm 11° 1°C 0mm 0.21kPa 24134m 1.9m/s 1.2m/s
09:00
3% -4.1°C 0mm 55% 0cm 23° 4.1°C 0mm 0.37kPa 24135m 2.1m/s 1.6m/s
10:00
5% -3.5°C 0mm 47% 0cm 35° 7.1°C 0mm 0.54kPa 24135m 1.8m/s 1.6m/s
11:00
8% -2.5°C 0mm 42% 0cm 46° 9.9°C 0mm 0.71kPa 24135m 1.6m/s 1.9m/s
12:00
11% -1.6°C 0mm 39% 0cm 55° 12°C 0mm 0.83kPa 24134m 1.2m/s 2m/s
13:00
15% -1°C 0mm 38% 0cm 61° 13°C 0mm 0.93kPa 24135m 1.4m/s 2.3m/s
14:00
18% -0.3°C 0mm 38% 0cm 61° 14°C 0mm 0.97kPa 24135m 1.5m/s 2.6m/s
15:00
39% 0.1°C 0mm 38% 0cm 55° 14°C 0mm 1kPa 24135m 1.8m/s 2.7m/s
16:00
60% 0.5°C 0mm 38% 0cm 45° 14°C 0mm 1kPa 24135m 1.9m/s 2.7m/s
17:00
81% 0.8°C 0mm 40% 0cm 34° 14°C 0mm 0.97kPa 24134m 1.6m/s 2.8m/s
18:00
82% 0.9°C 0mm 43% 0cm 23° 13°C 0mm 0.86kPa 24134m 2m/s 2.7m/s
19:00
84% 2°C 0mm 53% 0cm 11° 11°C 0mm 0.62kPa 24135m 4.2m/s 2.4m/s
20:00
85% 1°C 0mm 67% 0cm -1.4° 6.8°C 0mm 0.33kPa 24134m 1.7m/s 1.9m/s
21:00
90% 0.4°C 0mm 71% 0cm -13° 5.3°C 0mm 0.26kPa 24135m 1.5m/s 1.8m/s
22:00
95% -0.1°C 0mm 73% 0cm -24° 4.4°C 0mm 0.23kPa 24135m 1.3m/s 1.5m/s
23:00
100% -0.5°C 0mm 72% 0cm -34° 4°C 0mm 0.22kPa 24135m 1.1m/s 1.2m/s
Fri, Apr 10 Sunrise 07:01 Sunset 19:56
24:00
100% -1°C 0mm 71% 0cm -41° 3.8°C 0mm 0.23kPa 24134m 1m/s 0.95m/s
01:00
100% -1.4°C 0mm 70% 0cm -45° 3.6°C 0mm 0.24kPa 24135m 0.72m/s 0.67m/s
02:00
100% -1.6°C 0mm 69% 0cm -45° 3.5°C 0mm 0.24kPa 24135m 0.91m/s 0.87m/s
03:00
100% -1.7°C 0mm 69% 0cm -41° 3.5°C 0mm 0.24kPa 24134m 1m/s 1m/s
04:00
100% -1.8°C 0mm 68% 0cm -33° 3.4°C 0mm 0.25kPa 24134m 0.9m/s 0.82m/s
05:00
100% -2°C 0mm 68% 0cm -24° 3.4°C 0mm 0.25kPa 24135m 0.81m/s 0.81m/s
06:00
100% -2.1°C 0mm 67% 0cm -13° 3.4°C 0mm 0.26kPa 24135m 0.7m/s 0.48m/s
07:00
100% -2.2°C 0mm 66% 0cm -0.68° 3.5°C 0mm 0.27kPa 24135m 0.62m/s 0.51m/s
08:00
100% -0.8°C 0mm 61% 0cm 11° 6.1°C 0mm 0.37kPa 24135m 1m/s 1m/s
09:00
99% 0.3°C 0mm 50% 0cm 23° 10°C 0mm 0.63kPa 24135m 1.4m/s 1.1m/s
10:00
99% 1.6°C 0mm 44% 0cm 35° 14°C 0mm 0.88kPa 24134m 1.6m/s 1.2m/s
11:00
98% 2°C 0mm 39% 0cm 46° 16°C 0mm 1.1kPa 24135m 1.9m/s 1.3m/s
12:00
98% 1.9°C 0mm 35% 0cm 55° 17°C 0mm 1.3kPa 24134m 1.9m/s 1.5m/s
13:00
99% 1.8°C 0mm 33% 0cm 61° 18°C 0mm 1.4kPa 24135m 2m/s 1.8m/s
14:00
99% 2°C 0mm 32% 0cm 61° 19°C 0mm 1.5kPa 24134m 2.3m/s 2.1m/s
15:00
98% 2.4°C 0mm 32% 0cm 55° 19°C 0mm 1.5kPa 24135m 2.5m/s 2.1m/s
16:00
98% 2.9°C 0mm 34% 0cm 46° 19°C 0mm 1.5kPa 24135m 2.8m/s 2.3m/s
17:00
97% 3.4°C 0mm 37% 0cm 35° 18°C 0mm 1.3kPa 24134m 2.5m/s 2.3m/s
18:00
95% 4.2°C 0mm 42% 0cm 23° 17°C 0mm 1.1kPa 24135m 1.9m/s 2.4m/s
19:00
94% 6.7°C 0mm 59% 0cm 11° 15°C 0mm 0.69kPa 24135m 2m/s 1.5m/s
20:00
92% 5.4°C 0mm 70% 0cm -1.2° 11°C 0mm 0.38kPa 24134m 1.2m/s 1.3m/s
21:00
88% 5°C 0mm 74% 0cm -13° 9.3°C 0mm 0.3kPa 24135m 1m/s 1.1m/s
22:00
83% 4.8°C 0mm 75% 0cm -24° 9°C 0mm 0.28kPa 24134m 1m/s 1.1m/s
23:00
79% 4.6°C 0mm 75% 0cm -33° 8.7°C 0mm 0.28kPa 24135m 1.2m/s 1.3m/s
Sat, Apr 11 Sunrise 06:59 Sunset 19:57
24:00
78% 4.5°C 0mm 76% 0cm -41° 8.6°C 0mm 0.27kPa 24134m 1.2m/s 1.2m/s
01:00
78% 4.1°C 0mm 76% 0cm -45° 8.1°C 0mm 0.27kPa 24135m 1.1m/s 1.2m/s
02:00
77% 4°C 0mm 76% 0cm -45° 8°C 0mm 0.26kPa 24135m 1.2m/s 1.4m/s
03:00
76% 4.2°C 0mm 78% 0cm -41° 7.8°C 0mm 0.23kPa 24134m 1.2m/s 1.3m/s
04:00
74% 4°C 0mm 79% 0cm -33° 7.5°C 0mm 0.22kPa 24134m 1.5m/s 1.7m/s
05:00
73% 3.6°C 0mm 78% 0cm -23° 7.1°C 0mm 0.22kPa 24134m 1.4m/s 1.6m/s
06:00
71% 3.1°C 0mm 77% 0cm -12° 6.9°C 0mm 0.23kPa 24135m 1.4m/s 1.5m/s
07:00
68% 2.9°C 0mm 75% 0cm -0.29° 7.1°C 0mm 0.25kPa 24135m 1.5m/s 1.7m/s
08:00
66% 3.5°C 0mm 70% 0cm 11° 8.8°C 0mm 0.34kPa 24134m 1.5m/s 1.4m/s
09:00
58% 5.3°C 0.007mm 66% 0cm 23° 11°C 0mm 0.46kPa 24134m 1.4m/s 1.4m/s
10:00
50% 7°C 0.01mm 63% 0cm 35° 14°C 0mm 0.6kPa 24135m 1.3m/s 1.3m/s
11:00
42% 8.6°C 0.02mm 59% 0cm 46° 17°C 0mm 0.77kPa 24135m 1.2m/s 1.2m/s
12:00
42% 7.9°C 0.01mm 59% 0cm 56° 16°C 0.04mm 0.74kPa 24135m 1.2m/s 1.2m/s
13:00
42% 7.3°C 0.007mm 59% 0cm 62° 15°C 0.08mm 0.71kPa 24135m 1.1m/s 1.1m/s
14:00
42% 6.6°C 0mm 59% 0cm 61° 15°C 0.13mm 0.69kPa 24135m 1m/s 1m/s
15:00
40% 6.5°C 0mm 63% 0cm 55° 13°C 0.08mm 0.58kPa 24135m 1.1m/s 1.1m/s
16:00
39% 6.4°C 0mm 67% 0cm 46° 12°C 0.04mm 0.48kPa 24135m 1.2m/s 1.2m/s
17:00
37% 6.1°C 0mm 71% 0cm 35° 11°C 0mm 0.39kPa 24135m 1.3m/s 1.4m/s
18:00
35% 6.7°C 0mm 75% 0cm 23° 11°C 0mm 0.32kPa 24135m 1.4m/s 1.4m/s
19:00
34% 7.2°C 0mm 80% 0cm 11° 10°C 0mm 0.26kPa 24135m 1.4m/s 1.5m/s
20:00
32% 7.6°C 0mm 84% 0cm -0.96° 10°C 0mm 0.19kPa 24135m 1.4m/s 1.5m/s
21:00
41% 7.9°C 0mm 88% 0cm -13° 9.8°C 0mm 0.15kPa 24135m 1.2m/s 1.2m/s
22:00
50% 8.1°C 0mm 91% 0cm -24° 9.5°C 0mm 0.11kPa 24135m 1m/s 0.98m/s
23:00
59% 8.4°C 0mm 94% 0cm -33° 9.2°C 0mm 0.07kPa 24135m 0.85m/s 0.72m/s
Sun, Apr 12 Sunrise 06:58 Sunset 19:58
24:00
62% 8.6°C 0mm 93% 0cm -41° 9.7°C 0mm 0.09kPa 24135m 0.88m/s 0.69m/s
01:00
66% 8.8°C 0mm 91% 0cm -45° 10°C 0mm 0.11kPa 24135m 0.92m/s 0.65m/s
02:00
69% 9°C 0mm 90% 0cm -45° 11°C 0mm 0.13kPa 24135m 0.96m/s 0.62m/s
03:00
72% 9.1°C 0mm 79% 0cm -40° 13°C 0mm 0.31kPa 24135m 2.3m/s 1.4m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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