Skip to content
✨ New: PhotoWeather is now available on iOS and Android
Rule Fog Hunter

Sylva - Fog Hunter - Smoky Mountains & Blue Ridge

Sylva, 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

Get notified
Free alerts · takes 30 seconds
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 Spread4.6°C
Visibility24135 (Clear)
Relative Humidity72%
Wind Speed2.0m/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.

Create your own Fog Hunter alerts

Get notified when these conditions match at your own locations.

Get this template

72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 92 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/New_York
Fog Probability
≥ 60.0%
Wed, Apr 8
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%
Thu, Apr 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%
12:000%
13:000%
14:000%
15:000%
16:000%
17:000%
18:000%
19:000%
20:000%
21:000%
22:000%
23:000%
Fri, Apr 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, 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%
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, Apr 8 Sunrise 07:08
22:00
0% 0.9°C 0mm 72% 0cm -24° 5.5°C 0mm 0.25kPa 24135m 1.7m/s 2m/s
23:00
0% 0.6°C 0mm 74% 0cm -34° 4.8°C 0mm 0.22kPa 24135m 1.6m/s 1.9m/s
Thu, Apr 9 Sunrise 07:08 Sunset 20:00
24:00
0% 0.1°C 0mm 74% 0cm -42° 4.4°C 0mm 0.22kPa 24135m 1.5m/s 1.8m/s
01:00
0% -0.4°C 0mm 72% 0cm -46° 4.1°C 0mm 0.23kPa 24134m 1.5m/s 1.8m/s
02:00
0% -0.9°C 0mm 71% 0cm -47° 3.9°C 0mm 0.24kPa 24134m 1.5m/s 1.7m/s
03:00
0% -1.5°C 0mm 71% 0cm -43° 3.2°C 0mm 0.22kPa 24134m 1.6m/s 1.9m/s
04:00
0% -1.8°C 0mm 70% 0cm -35° 3.1°C 0mm 0.23kPa 24135m 1.5m/s 1.8m/s
05:00
0% -2.2°C 0mm 72% 0cm -25° 2.3°C 0mm 0.2kPa 24134m 1.5m/s 1.8m/s
06:00
0% -2.7°C 0mm 73% 0cm -14° 1.7°C 0mm 0.19kPa 24135m 1.5m/s 1.7m/s
07:00
0% -3.1°C 0mm 72% 0cm -2.4° 1.3°C 0mm 0.19kPa 24135m 1.4m/s 1.6m/s
08:00
0% -2.9°C 0mm 65% 0cm 9.7° 3.1°C 0mm 0.27kPa 24135m 1.4m/s 1.2m/s
09:00
4% -3.1°C 0mm 52% 0cm 22° 6.1°C 0mm 0.46kPa 24135m 1.5m/s 0.98m/s
10:00
8% -2.7°C 0mm 42% 0cm 34° 9.5°C 0mm 0.68kPa 24134m 1.5m/s 0.97m/s
11:00
12% -1.7°C 0mm 36% 0cm 45° 13°C 0mm 0.95kPa 24135m 1.5m/s 0.91m/s
12:00
13% -1°C 0mm 33% 0cm 55° 15°C 0mm 1.2kPa 24134m 1.4m/s 1.1m/s
13:00
13% -0.5°C 0mm 31% 0cm 61° 17°C 0mm 1.3kPa 24134m 1.4m/s 1.2m/s
14:00
14% -0.2°C 0mm 30% 0cm 62° 18°C 0mm 1.4kPa 24135m 1.7m/s 1.5m/s
15:00
23% 0°C 0mm 30% 0cm 56° 18°C 0mm 1.4kPa 24135m 1.9m/s 1.8m/s
16:00
32% 0.3°C 0mm 31% 0cm 47° 18°C 0mm 1.4kPa 24134m 2.2m/s 2.2m/s
17:00
41% 0.7°C 0mm 33% 0cm 36° 17°C 0mm 1.3kPa 24134m 2.6m/s 2.4m/s
18:00
46% 1.5°C 0mm 37% 0cm 24° 16°C 0mm 1.2kPa 24135m 1.9m/s 2.7m/s
19:00
51% 3°C 0mm 49% 0cm 12° 13°C 0mm 0.79kPa 24134m 4m/s 2.6m/s
20:00
56% 1.9°C 0mm 61% 0cm -0.1° 8.9°C 0mm 0.44kPa 24135m 1.9m/s 2.3m/s
21:00
71% 0.8°C 0mm 64% 0cm -12° 7.1°C 0mm 0.36kPa 24134m 1.7m/s 2m/s
22:00
85% 0.1°C 0mm 65% 0cm -24° 6.1°C 0mm 0.33kPa 24134m 1.5m/s 1.7m/s
23:00
100% -0.5°C 0mm 65% 0cm -33° 5.5°C 0mm 0.32kPa 24135m 1.3m/s 1.5m/s
Fri, Apr 10 Sunrise 07:07 Sunset 20:00
24:00
100% -1.1°C 0mm 65% 0cm -41° 5°C 0mm 0.31kPa 24134m 1.3m/s 1.4m/s
01:00
100% -1.6°C 0mm 64% 0cm -46° 4.7°C 0mm 0.31kPa 24134m 1.1m/s 1.2m/s
02:00
100% -2°C 0mm 63% 0cm -46° 4.4°C 0mm 0.31kPa 24135m 1m/s 1.2m/s
03:00
100% -2.3°C 0mm 63% 0cm -42° 4.1°C 0mm 0.3kPa 24134m 1m/s 1.1m/s
04:00
100% -2.6°C 0mm 62% 0cm -35° 3.9°C 0mm 0.31kPa 24134m 0.91m/s 1m/s
05:00
100% -2.8°C 0mm 62% 0cm -25° 3.8°C 0mm 0.31kPa 24135m 0.81m/s 0.85m/s
06:00
100% -3.2°C 0mm 61% 0cm -14° 3.6°C 0mm 0.31kPa 24135m 0.9m/s 0.94m/s
07:00
100% -3.5°C 0mm 60% 0cm -2.1° 3.4°C 0mm 0.31kPa 24134m 0.6m/s 0.69m/s
08:00
100% -2.3°C 0mm 58% 0cm 10° 5.4°C 0mm 0.38kPa 24134m 0.6m/s 0.63m/s
09:00
100% -1.8°C 0mm 46% 0cm 22° 9.2°C 0mm 0.63kPa 24134m 0.42m/s 0.55m/s
10:00
99% -1°C 0mm 39% 0cm 34° 13°C 0mm 0.89kPa 24134m 0.6m/s 0.8m/s
11:00
99% -0.3°C 0mm 34% 0cm 45° 16°C 0mm 1.2kPa 24134m 0.73m/s 1m/s
12:00
99% -0.1°C 0mm 30% 0cm 55° 18°C 0mm 1.4kPa 24134m 0.94m/s 1.3m/s
13:00
100% 0.3°C 0mm 28% 0cm 62° 19°C 0mm 1.6kPa 24135m 0.92m/s 1.4m/s
14:00
100% 0.3°C 0mm 26% 0cm 62° 20°C 0mm 1.7kPa 24135m 1m/s 1.5m/s
15:00
99% 0.2°C 0mm 26% 0cm 56° 21°C 0mm 1.8kPa 24135m 1.1m/s 1.7m/s
16:00
97% 0.2°C 0mm 26% 0cm 47° 21°C 0mm 1.8kPa 24134m 1.3m/s 1.7m/s
17:00
96% 0.5°C 0mm 26% 0cm 36° 20°C 0mm 1.8kPa 24135m 1.2m/s 1.3m/s
18:00
94% 1.1°C 0mm 29% 0cm 24° 19°C 0mm 1.6kPa 24134m 1.4m/s 1.3m/s
19:00
92% 5.8°C 0mm 48% 0cm 12° 17°C 0mm 1kPa 24135m 2m/s 1.5m/s
20:00
90% 5.2°C 0mm 63% 0cm 0.09° 12°C 0mm 0.52kPa 24134m 1.8m/s 2m/s
21:00
80% 4.5°C 0mm 69% 0cm -12° 10°C 0mm 0.38kPa 24134m 1.4m/s 1.6m/s
22:00
70% 3.9°C 0mm 70% 0cm -23° 9.2°C 0mm 0.35kPa 24134m 1m/s 1m/s
23:00
60% 3.6°C 0mm 71% 0cm -33° 8.6°C 0mm 0.32kPa 24135m 0.6m/s 0.71m/s
Sat, Apr 11 Sunrise 07:05 Sunset 20:01
24:00
60% 3.3°C 0mm 72% 0cm -41° 8.1°C 0mm 0.3kPa 24135m 0.4m/s 0.42m/s
01:00
60% 3.3°C 0mm 73% 0cm -46° 7.8°C 0mm 0.28kPa 24135m 0.42m/s 0.5m/s
02:00
60% 3.3°C 0mm 76% 0cm -46° 7.3°C 0mm 0.25kPa 24135m 0.9m/s 0.9m/s
03:00
68% 3.8°C 0mm 62% 0cm -42° 11°C 0mm 0.48kPa 24135m 0.91m/s 0.97m/s
04:00
76% 3.5°C 0mm 49% 0cm -34° 14°C 0mm 0.83kPa 24135m 0.92m/s 1m/s
05:00
84% 2°C 0mm 35% 0cm -25° 18°C 0mm 1.3kPa 24135m 0.93m/s 1.1m/s
06:00
86% 2.2°C 0mm 33% 0cm -14° 19°C 0mm 1.5kPa 24135m 1.2m/s 1.1m/s
07:00
87% 2.2°C 0mm 30% 0cm -1.8° 20°C 0mm 1.6kPa 24135m 1.4m/s 1m/s
08:00
89% 2.2°C 0mm 28% 0cm 10° 22°C 0mm 1.9kPa 24135m 1.6m/s 1m/s
09:00
85% 2.6°C 0mm 29% 0cm 22° 21°C 0mm 1.8kPa 24135m 1.7m/s 1.2m/s
10:00
80% 2.9°C 0mm 31% 0cm 34° 21°C 0mm 1.7kPa 24135m 1.7m/s 1.4m/s
11:00
76% 3.2°C 0mm 32% 0cm 46° 21°C 0mm 1.6kPa 24135m 1.7m/s 1.5m/s
12:00
75% 5.9°C 0mm 45% 0cm 56° 18°C 0mm 1.1kPa 24135m 1.5m/s 1.3m/s
13:00
75% 7.2°C 0mm 59% 0cm 62° 15°C 0mm 0.71kPa 24135m 1.3m/s 1.1m/s
14:00
74% 7.7°C 0mm 72% 0cm 62° 13°C 0mm 0.4kPa 24135m 1.1m/s 0.85m/s
15:00
67% 7.2°C 0mm 73% 0cm 57° 12°C 0mm 0.37kPa 24135m 1.2m/s 1m/s
16:00
59% 6.7°C 0mm 74% 0cm 47° 11°C 0mm 0.35kPa 24135m 1.3m/s 1.2m/s
17:00
52% 6.2°C 0mm 75% 0cm 36° 11°C 0mm 0.32kPa 24135m 1.3m/s 1.4m/s
18:00
49% 5.6°C 0mm 73% 0cm 24° 10°C 0mm 0.35kPa 24135m 1.4m/s 1.5m/s
19:00
45% 5°C 0mm 70% 0cm 12° 10°C 0mm 0.37kPa 24135m 1.6m/s 1.6m/s
20:00
42% 4.4°C 0mm 68% 0cm 0.22° 10°C 0mm 0.39kPa 24135m 1.7m/s 1.7m/s
21:00
53% 4.1°C 0mm 68% 0cm -12° 9.8°C 0mm 0.39kPa 24135m 1.7m/s 1.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

Get Notified of Opportunities

Create your own custom alerts for this location and more.

Create Free Account