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More Morning Frost in Smoky Mountains & Blue Ridge
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Rule Morning Frost

Banner Elk - Morning Frost - Smoky Mountains & Blue Ridge

Banner Elk, North Carolina, United States

Frost crystals on calm, cold mornings near sunrise

No opportunities right now
Here’s what usually blocks matches

No Morning Frost opportunities in the next 14 days

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Rule requirements (key thresholds)
Time Window · Sunrise -45m to +90m Frost Probability · ≥ 60.0% Wind Speed · ≤ 1.5m/s

Tip: Scroll down to the 72-hour table to see exactly which condition fails hour by hour.

Most common blockers (next 72 hours)
Frost Probability 100% failing
Time Window 88% failing
Wind Speed 76% failing

Currently

Real-time conditions
Frost Probability
0%
Soil Temperature9.2°C
Dew Point-2.1°C (low dew point)
Wind Speed4.3m/s (calm conditions)
Cloud Cover3%

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 predicts the first hard frost events that enhance the Smokies' autumn landscapes with crystalline textures. We track overnight temperatures, humidity, and elevation to identify when frost will coat mountain meadows, overlooks, and exposed vegetation with sparkling ice crystals at dawn.

The Smokies' elevation range means frost arrives at different times depending on altitude. Clingmans Dome and high overlooks can see frost as early as late September, while valleys may not freeze until late October or November. This staggered frost timing extends the season for frost photography and creates interesting elevation-based opportunities.

What makes Smoky Mountains frost photography exceptional:

  • Mountain meadows - High-elevation grassy areas like Andrews Bald develop heavy frost coverage on clear nights
  • Clingmans Dome conditions - At 6,643 feet, the highest point often experiences hoar frost creating alien landscapes
  • Frozen waterfalls - Later season frost leads to ice formations on the Smokies' countless waterfalls
  • Foliage combination - Early season frost can coincide with peak color, coating colorful leaves with ice crystals

Best frost photography requires clear, calm nights with temperatures dropping into the mid-20s Fahrenheit. High elevation locations experience frost most reliably, while valley locations need colder conditions. Arrive before dawn to catch frost plus first light—frost melts quickly after sunrise. Classic locations include Clingmans Dome observation tower, Grassy patches along Appalachian Trail, and roadside overlooks above 5,000 feet elevation.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 75 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/New_York
Time Window
Sunrise -45m to +90m
Frost Probability
≥ 60.0%
Wind Speed
≤ 1.5m/s
Mon, Apr 20
24:00✕0%4.6m/s
01:00✕0%5m/s
02:00✕0%5m/s
03:00✕0%4.5m/s
04:00✕0%4.3m/s
05:00✕0%4.4m/s
06:00✓0%3.8m/s
07:00✓0%3.1m/s
08:00✓0%3.1m/s
09:00✕0%3.9m/s
10:00✕0%5.2m/s
11:00✕0%5.8m/s
12:00✕0%5.2m/s
13:00✕0%6m/s
14:00✕0%6.2m/s
15:00✕0%6.9m/s
16:00✕0%6.7m/s
17:00✕0%6.1m/s
18:00✕0%5.3m/s
19:00✕0%4.2m/s
20:00✕0%3.1m/s
21:00✕0%2m/s
22:00✕0%1.6m/s
23:00✕0%1.5m/s
Tue, Apr 21
24:00✕5%1.4m/s
01:00✕5%1.3m/s
02:00✕5%1.2m/s
03:00✕5%1.2m/s
04:00✕5%1.2m/s
05:00✕5%1.1m/s
06:00✓54%1.1m/s
07:00✓54%1.1m/s
08:00✓52%1m/s
09:00✕47%1.1m/s
10:00✕4.6%1.5m/s
11:00✕4.2%2.1m/s
12:00✕4%2.6m/s
13:00✕0%2.7m/s
14:00✕0%2.9m/s
15:00✕0%3m/s
16:00✕0%3.4m/s
17:00✕0%3.6m/s
18:00✕0%2.9m/s
19:00✕0%1.5m/s
20:00✕0%0.8m/s
21:00✕0%0.97m/s
22:00✕0%0.96m/s
23:00✕0%1.1m/s
Wed, Apr 22
24:00✕0%1.1m/s
01:00✕0%1.3m/s
02:00✕0%1.7m/s
03:00✕0%1.8m/s
04:00✕0%1.8m/s
05:00✕0%1.6m/s
06:00✓0%1.4m/s
07:00✓0%1.5m/s
08:00✓0%2.4m/s
09:00✕0%3.4m/s
10:00✕0%4.5m/s
11:00✕0%5.5m/s
12:00✕0%4.6m/s
13:00✕0%3.7m/s
14:00✕0%2.8m/s
15:00✕0%2.7m/s
16:00✕0%2.6m/s
17:00✕0%2.5m/s
18:00✕0%2.5m/s
19:00✕0%2.5m/s
20:00✕0%2.6m/s
21:00✕0%2.5m/s
22:00✕0%2.4m/s
23:00✕0%2.3m/s
Thu, Apr 23
24:00✕0%2.1m/s
01:00✕0%1.8m/s
02:00✕0%1.6m/s
How to read: colored cells show whether each predicate requirement is met; highlighted rows mean the full rule matched (an opportunity).

What does Frost 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
Dew Point
°C
Surface Temperature
°C
Temperature
°C
Time Window
Total Cloud Coverage
%
Vapor Pressure Deficit
kPa
Mon, Apr 20 Sunrise 06:47 Sunset 20:05
04:00 ☾
-2.1°C 9.2°C 3.8°C - 3% 0.28kPa
05:00 ☾
-1.6°C 8.9°C 3.8°C - 3% 0.26kPa
06:00 ☾
-1.5°C 8.7°C 3.4°C - 4% 0.23kPa
07:00
-1.1°C 8.4°C 1.7°C - 5% 0.13kPa
08:00
-0.8°C 8.2°C 2.5°C - 14% 0.16kPa
09:00
-0.3°C 8.1°C 4.5°C - 19% 0.25kPa
10:00
-0.2°C 8.1°C 6.3°C - 26% 0.35kPa
11:00
0.5°C 8.2°C 7.4°C - 80% 0.39kPa
12:00
1.2°C 8.3°C 6.7°C - 97% 0.31kPa
13:00
1.6°C 8.3°C 7°C - 98% 0.31kPa
14:00
1.2°C 8.4°C 7.3°C - 7% 0.36kPa
15:00
-2.5°C 8.6°C 10°C - 0% 0.74kPa
16:00
-3.8°C 8.8°C 10°C - 0% 0.79kPa
17:00
-5.4°C 9°C 10°C - 11% 0.85kPa
18:00
-5.6°C 9.1°C 9.9°C - 0% 0.82kPa
19:00
-4.6°C 9.2°C 8.4°C - 0% 0.67kPa
20:00 ☾
-5.1°C 9°C 5.2°C - 0% 0.46kPa
21:00 ☾
-5.1°C 8.7°C 2.4°C - 0% 0.31kPa
22:00 ☾
-5.3°C 8.4°C 1.5°C - 0% 0.27kPa
23:00 ☾
-5.7°C 8.1°C 1°C - 0% 0.26kPa
Tue, Apr 21 Sunrise 06:46 Sunset 20:06
24:00 ☾
-6.1°C 7.7°C 0.82°C - 0% 0.26kPa
01:00 ☾
-6.4°C 7.4°C 0.75°C - 0% 0.27kPa
02:00 ☾
-6.8°C 7.1°C 0.65°C - 0% 0.27kPa
03:00 ☾
-6.9°C 6.8°C 0.73°C - 0% 0.28kPa
04:00 ☾
-7°C 6.5°C 0.68°C - 0% 0.28kPa
05:00 ☾
-7°C 6.3°C 0.85°C - 0% 0.29kPa
06:00 ☾
-6.9°C 6°C 1.1°C - 0% 0.3kPa
07:00
-6.7°C 5.8°C 1.5°C - 0% 0.31kPa
08:00
-4.7°C 5.8°C 4.8°C - 0% 0.43kPa
09:00
-2.8°C 6°C 8.8°C - 0% 0.63kPa
10:00
-0.8°C 6.4°C 11°C - 0% 0.78kPa
11:00
0.2°C 6.9°C 14°C - 5% 0.93kPa
12:00
0.9°C 7.5°C 15°C - 5% 1.1kPa
13:00
1.1°C 8.1°C 16°C - 3% 1.2kPa
14:00
1.4°C 8.7°C 17°C - 5% 1.2kPa
15:00
1.6°C 9.3°C 17°C - 34% 1.3kPa
16:00
1.7°C 9.8°C 17°C - 66% 1.3kPa
17:00
2.1°C 10°C 17°C - 100% 1.2kPa
18:00
3.1°C 11°C 16°C - 100% 1kPa
19:00
6°C 11°C 14°C - 100% 0.64kPa
20:00 ☾
5.2°C 11°C 9.5°C - 95% 0.3kPa
21:00 ☾
4.7°C 11°C 8.3°C - 77% 0.24kPa
22:00 ☾
4.1°C 10°C 7.8°C - 72% 0.24kPa
23:00 ☾
3.6°C 10°C 7.6°C - 96% 0.26kPa
Wed, Apr 22 Sunrise 06:45 Sunset 20:07
24:00 ☾
3.3°C 10°C 7.8°C - 66% 0.29kPa
01:00 ☾
3°C 9.9°C 7.6°C - 23% 0.29kPa
02:00 ☾
2.8°C 9.8°C 7.3°C - 5% 0.27kPa
03:00 ☾
2.9°C 9.6°C 6.8°C - 76% 0.23kPa
04:00 ☾
3.2°C 9.5°C 6.6°C - 100% 0.2kPa
05:00 ☾
3.5°C 9.3°C 6.4°C - 100% 0.18kPa
06:00 ☾
3.6°C 9.2°C 6.6°C - 100% 0.18kPa
07:00
3.7°C 9.1°C 7°C - 100% 0.21kPa
08:00
4.4°C 9.1°C 9.6°C - 100% 0.36kPa
09:00
5.1°C 10°C 12°C - 68% 0.57kPa
10:00
5.3°C 11°C 15°C - 37% 0.85kPa
11:00
5°C 12°C 18°C - 5% 1.2kPa
12:00
5.6°C 13°C 17°C - 12% 0.97kPa
13:00
5.9°C 13°C 15°C - 20% 0.76kPa
14:00
6°C 13°C 13°C - 27% 0.58kPa
15:00
6°C 13°C 12°C - 40% 0.47kPa
16:00
5.9°C 13°C 11°C - 53% 0.38kPa
17:00
5.8°C 12°C 9.9°C - 66% 0.3kPa
18:00
5.7°C 12°C 9.6°C - 46% 0.28kPa
19:00
5.6°C 12°C 9.3°C - 25% 0.26kPa
20:00 ☾
5.5°C 12°C 9°C - 5% 0.24kPa
21:00 ☾
5.6°C 12°C 8.8°C - 5% 0.22kPa
22:00 ☾
5.7°C 11°C 8.7°C - 5% 0.21kPa
23:00 ☾
5.8°C 11°C 8.5°C - 5% 0.19kPa
Thu, Apr 23 Sunrise 06:44 Sunset 20:08
24:00 ☾
6.1°C 11°C 9.5°C - 3% 0.24kPa
01:00 ☾
6.5°C 11°C 10°C - 2% 0.29kPa
02:00 ☾
6.8°C 11°C 11°C - 0% 0.35kPa
03:00 ☾
6.9°C 11°C 14°C - 2% 0.57kPa
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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