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Rule Fog Hunter

Gatlinburg - Fog Hunter - Smoky Mountains & Blue Ridge

Gatlinburg, Tennessee, 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 Spread1.7°C
Visibility24135 (Clear)
Relative Humidity90%
Wind Speed0.9m/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%
Sun, May 24
24:000%
01:0030%
02:0030%
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%
03:0039%
04:0039%
05:0032%
06:0039%
07:0030%
08:0027%
09:000%
10:000%
11:000%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:0053%
22:000%
23:000%
Tue, May 26
24:000%
01:000%
02:000%
03:0041%
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%
23:0071%
Wed, May 27
24:0071%
01:0071%
02:0071%
03:0030%
04:000%
05:000%
06:000%
07:000%
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
Sun, May 24 Sunrise 06:23 Sunset 20:39
09:00
0% 16°C 0mm 90% 0cm 30° 18°C 0mm 0.21kPa 24135m 1.5m/s 0.9m/s
10:00
0% 16°C 0mm 83% 0cm 42° 19°C 0mm 0.38kPa 24135m 2m/s 0.68m/s
11:00
0% 17°C 0mm 84% 0cm 54° 19°C 0mm 0.36kPa 24134m 1.4m/s 0.52m/s
12:00
0% 17°C 0mm 81% 0cm 65° 20°C 0mm 0.45kPa 24134m 1.8m/s 0.46m/s
13:00
0% 17°C 0mm 63% 0cm 74° 24°C 0.13mm 1.1kPa 20910m 3.3m/s 0.98m/s
14:00
0% 19°C 0mm 75% 0cm 74° 24°C 0.94mm 0.72kPa 11078m 2.4m/s 1m/s
15:00
0% 20°C 0.01mm 80% 0cm 66° 23°C 0.75mm 0.58kPa 9028m 2.1m/s 1.4m/s
16:00
0% 20°C 0mm 87% 0cm 54° 22°C 1.6mm 0.35kPa 8579m 1.9m/s 1.2m/s
17:00
0% 20°C 0mm 88% 0cm 42° 22°C 2.8mm 0.33kPa 7289m 1.9m/s 1.3m/s
18:00
0% 20°C 0mm 89% 0cm 30° 22°C 4mm 0.3kPa 21656m 1.6m/s 0.88m/s
19:00
0% 20°C 0mm 93% 0cm 18° 21°C 5.5mm 0.17kPa 12565m 1.8m/s 1.1m/s
20:00
0% 19°C 0mm 95% 0cm 6.6° 20°C 7.3mm 0.12kPa 5601m 1.5m/s 1.4m/s
21:00
0% 18°C 0mm 97% 0cm -4.4° 18°C 2.3mm 0.06kPa 6899m 1.9m/s 1.6m/s
22:00
0% 18°C 0.01mm 98% 0cm -14° 18°C 3.7mm 0.04kPa 10395m 0.82m/s 0.79m/s
23:00
0% 18°C 0.21mm 98% 0cm -23° 18°C 4.8mm 0.04kPa 10829m 0.73m/s 0.79m/s
Mon, May 25 Sunrise 06:22 Sunset 20:39
24:00
0% 18°C 1.2mm 98% 0cm -29° 18°C 6.1mm 0.03kPa 6844m 1.4m/s 1.3m/s
01:00
0% 17°C 0.91mm 98% 0cm -33° 18°C 7.7mm 0.04kPa 13381m 1.5m/s 1.3m/s
02:00
0% 17°C 0.27mm 98% 0cm -33° 17°C 8.3mm 0.05kPa 19808m 1.5m/s 1.4m/s
03:00
0% 17°C 0.09mm 98% 0cm -30° 17°C 0.44mm 0.05kPa 20491m 1.4m/s 1.3m/s
04:00
0% 17°C 0mm 97% 0cm -23° 17°C 0.5mm 0.06kPa 20544m 1.1m/s 1m/s
05:00
0% 17°C 0mm 97% 0cm -15° 17°C 0.5mm 0.06kPa 20587m 1.1m/s 1m/s
06:00
0% 17°C 0.09mm 97% 0cm -4.8° 17°C 0.5mm 0.06kPa 20500m 1.3m/s 1.3m/s
07:00
0% 17°C 0.02mm 97% 0cm 6.3° 17°C 0.63mm 0.06kPa 20459m 1.4m/s 1.3m/s
08:00
0% 17°C 0mm 96% 0cm 18° 18°C 0.63mm 0.08kPa 20557m 1.2m/s 0.96m/s
09:00
0% 18°C 0mm 92% 0cm 30° 19°C 0mm 0.18kPa 24134m 1.3m/s 0.56m/s
10:00
0% 18°C 0.01mm 81% 0cm 42° 21°C 0mm 0.48kPa 24134m 1.4m/s 0.69m/s
11:00
0% 17°C 0mm 69% 0cm 54° 23°C 0.06mm 0.87kPa 24134m 1.8m/s 0.8m/s
12:00
0% 18°C 0mm 76% 0cm 65° 22°C 0.19mm 0.65kPa 18066m 1.6m/s 1.2m/s
13:00
0% 18°C 0mm 74% 0cm 74° 23°C 0.63mm 0.72kPa 11873m 2m/s 1.4m/s
14:00
0% 19°C 0mm 87% 0cm 74° 21°C 1.2mm 0.31kPa 16950m 1.5m/s 0.98m/s
15:00
0% 19°C 0mm 91% 0cm 66° 21°C 0.75mm 0.22kPa 14929m 1.3m/s 0.96m/s
16:00
0% 19°C 0mm 92% 0cm 54° 21°C 1.8mm 0.2kPa 7547m 0.91m/s 0.61m/s
17:00
0% 19°C 0.08mm 93% 0cm 42° 20°C 2.4mm 0.16kPa 15427m 0.61m/s 0.36m/s
18:00
0% 19°C 0.28mm 94% 0cm 30° 20°C 2.8mm 0.13kPa 23600m 0.61m/s 0.48m/s
19:00
0% 19°C 0.03mm 96% 0cm 18° 19°C 2.9mm 0.1kPa 24134m 0.82m/s 0.83m/s
20:00
0% 18°C 0mm 95% 0cm 6.7° 19°C 3mm 0.1kPa 24135m 1.1m/s 1.1m/s
21:00
0% 17°C 0.04mm 96% 0cm -4.3° 18°C 0.06mm 0.09kPa 22096m 1.3m/s 1.4m/s
22:00
0% 17°C 1.2mm 96% 0cm -14° 18°C 0.56mm 0.08kPa 9376m 1.2m/s 1.4m/s
23:00
0% 17°C 7mm 98% 0cm -23° 18°C 4.3mm 0.03kPa 3599m 1.3m/s 1.3m/s
Tue, May 26 Sunrise 06:22 Sunset 20:40
24:00
0% 17°C 0.99mm 98% 0cm -29° 18°C 8.3mm 0.03kPa 16994m 0.9m/s 0.86m/s
01:00
0% 17°C 0.11mm 98% 0cm -33° 17°C 8.6mm 0.03kPa 24134m 0.51m/s 0.45m/s
02:00
0% 17°C 0mm 99% 0cm -33° 17°C 8.8mm 0.02kPa 19388m 0.81m/s 0.8m/s
03:00
0% 17°C 0.55mm 98% 0cm -29° 17°C 0.25mm 0.03kPa 17657m 1m/s 1m/s
04:00
0% 17°C 0.56mm 98% 0cm -23° 17°C 1.2mm 0.04kPa 17641m 1.6m/s 1.5m/s
05:00
0% 17°C 0mm 98% 0cm -15° 17°C 1.4mm 0.05kPa 16686m 1.9m/s 1.6m/s
06:00
0% 17°C 0mm 98% 0cm -4.7° 17°C 1.4mm 0.04kPa 20473m 1.5m/s 1.2m/s
07:00
0% 17°C 0mm 98% 0cm 6.4° 17°C 1.4mm 0.04kPa 20823m 0.8m/s 0.87m/s
08:00
0% 17°C 0mm 97% 0cm 18° 17°C 1.4mm 0.06kPa 20802m 1m/s 0.97m/s
09:00
0% 18°C 0mm 93% 0cm 30° 19°C 0mm 0.16kPa 24134m 0.9m/s 0.43m/s
10:00
0% 18°C 0mm 83% 0cm 42° 21°C 0mm 0.41kPa 24135m 1.2m/s 0.47m/s
11:00
0% 18°C 0mm 72% 0cm 54° 23°C 0mm 0.76kPa 24135m 2m/s 1.2m/s
12:00
0% 17°C 0mm 69% 0cm 65° 23°C 0.06mm 0.87kPa 24134m 1.9m/s 1.3m/s
13:00
0% 17°C 0mm 64% 0cm 74° 25°C 0.19mm 1.1kPa 21339m 2.5m/s 2m/s
14:00
0% 18°C 0mm 72% 0cm 74° 24°C 0.63mm 0.8kPa 13355m 1.6m/s 2m/s
15:00
0% 18°C 0.03mm 81% 0cm 66° 21°C 1.4mm 0.49kPa 16948m 1.3m/s 1.6m/s
16:00
0% 17°C 0.05mm 89% 0cm 55° 19°C 2.2mm 0.24kPa 20542m 1.1m/s 1.2m/s
17:00
0% 16°C 0.08mm 97% 0cm 42° 16°C 3mm 0.05kPa 24135m 0.8m/s 0.82m/s
18:00
0% 16°C 0.05mm 97% 0cm 30° 16°C 3mm 0.05kPa 24135m 0.9m/s 0.89m/s
19:00
0% 16°C 0.03mm 98% 0cm 18° 16°C 3mm 0.04kPa 24135m 1m/s 0.96m/s
20:00
0% 16°C 0mm 98% 0cm 6.8° 16°C 3.1mm 0.04kPa 24135m 1.1m/s 1m/s
21:00
0% 15°C 0mm 98% 0cm -4.2° 16°C 2mm 0.04kPa 24135m 0.98m/s 0.89m/s
22:00
0% 15°C 0mm 98% 0cm -14° 15°C 1mm 0.04kPa 24135m 0.85m/s 0.73m/s
23:00
0% 15°C 0mm 98% 0cm -23° 15°C 0mm 0.04kPa 24135m 0.73m/s 0.58m/s
Wed, May 27 Sunrise 06:21 Sunset 20:41
24:00
0% 15°C 0mm 97% 0cm -29° 15°C 0.02mm 0.04kPa 24135m 0.83m/s 0.68m/s
01:00
0% 16°C 0mm 97% 0cm -33° 16°C 0.04mm 0.05kPa 24135m 0.94m/s 0.78m/s
02:00
0% 16°C 0mm 97% 0cm -33° 16°C 0.06mm 0.05kPa 24135m 1m/s 0.88m/s
03:00
0% 17°C 0mm 97% 0cm -29° 17°C 0.6mm 0.06kPa 19840m 1.4m/s 1.1m/s
04:00
0% 17°C 0mm 96% 0cm -23° 18°C 1.1mm 0.08kPa 15544m 1.8m/s 1.2m/s
05:00
0% 18°C 0mm 95% 0cm -15° 18°C 1.7mm 0.1kPa 11249m 2.2m/s 1.4m/s
06:00
0% 17°C 0.06mm 96% 0cm -4.6° 18°C 2.3mm 0.09kPa 14624m 2.1m/s 1.3m/s
07:00
0% 17°C 0.12mm 96% 0cm 6.4° 18°C 2.9mm 0.08kPa 18000m 1.9m/s 1.1m/s
08:00
0% 17°C 0.18mm 97% 0cm 18° 17°C 3.6mm 0.07kPa 21375m 1.8m/s 0.95m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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