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Rule Fog Hunter

Bretton Woods - Fog Hunter - New England, USA

Bretton Woods, New Hampshire, 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 Spread0.7°C
Visibility8951 (Moderate)
Relative Humidity95%
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 maritime fog and mountain mist that define New England's atmospheric photography. We combine ocean temperature, dewpoint, and topography to predict when coastal fog banks and mountain valley mist will create moody, quintessentially New England conditions.

New England sits where cold Atlantic waters meet the North American continent, creating persistent fog conditions especially during autumn. The region's mountains—from the White Mountains of New Hampshire to the Green Mountains of Vermont—also generate valley fog that transforms familiar scenes into ethereal compositions.

What makes New England fog photography exceptional:

  • Maritime fog - Cold Atlantic waters generate thick fog banks that roll inland, especially in Maine and coastal Massachusetts
  • White Mountains valleys - Notches and valleys trap morning mist that burns off by mid-morning, creating dramatic reveal moments
  • Covered bridge fog - Vermont and New Hampshire's iconic covered bridges emerge from fog like scenes from another century
  • Acadia coastal mist - Rocky Maine coast where fog meets granite cliffs and crashing waves

Best conditions occur September through October when warm land meets cooling air. Coastal fog can persist all day, while mountain valley fog typically burns off by late morning. Classic locations include Franconia Notch, Smugglers' Notch, and Mount Desert Island.

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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%
01:000%
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%
15:0017%
16:0017%
17:0017%
18:0019%
19:0021%
20:0021%
21:0038%
22:000%
23:0026%
Mon, May 25
24:0038%
01:0034%
02:000%
03:0056%
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%
20:0055%
21:0055%
22:0055%
23:000%
Tue, May 26
24:000%
01:0055%
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%
23:0055%
Wed, May 27
24:0030%
01:0030%
02:0030%
03:000%
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 05:10 Sunset 20:15
09:00
0% 4.4°C 1.3mm 95% 0cm 39° 5.1°C 1.1mm 0.04kPa 8951m 6.9m/s 3.4m/s
10:00
0% 3.8°C 1.2mm 96% 0cm 49° 4.4°C 2.4mm 0.04kPa 10115m 8.2m/s 3.8m/s
11:00
0% 3.1°C 0.64mm 96% 0cm 58° 3.7°C 3.3mm 0.03kPa 14674m 8.6m/s 4.1m/s
12:00
0% 2.8°C 0.28mm 96% 0cm 65° 3.3°C 3.8mm 0.03kPa 19950m 7.9m/s 3.7m/s
13:00
0% 2.7°C 0.58mm 96% 0cm 66° 3.2°C 4.1mm 0.03kPa 11246m 7.9m/s 3.7m/s
14:00
0% 2.4°C 0.66mm 96% 0cm 62° 2.9°C 4.9mm 0.03kPa 13984m 7.7m/s 4m/s
15:00
0% 2.3°C 0.13mm 96% 0cm 53° 2.9°C 0.25mm 0.03kPa 24135m 7.1m/s 3.8m/s
16:00
0% 2.5°C 0.03mm 96% 0cm 43° 3.1°C 0.31mm 0.03kPa 24134m 7.3m/s 4m/s
17:00
0% 2.5°C 0.01mm 96% 0cm 33° 3.1°C 0.31mm 0.03kPa 24135m 7.6m/s 4.1m/s
18:00
0% 2.6°C 0mm 95% 0cm 22° 3.3°C 0.38mm 0.04kPa 24134m 7.4m/s 3.9m/s
19:00
0% 2.3°C 0.01mm 95% 0cm 12° 3°C 0.38mm 0.04kPa 24135m 7.3m/s 4.1m/s
20:00
0% 2.1°C 0mm 95% 0cm 1.9° 2.8°C 0.38mm 0.04kPa 24135m 7.3m/s 4.1m/s
21:00
0% 2.1°C 0mm 94% 0cm -7.3° 2.9°C 0mm 0.04kPa 24135m 6.6m/s 3.7m/s
22:00
0% 2.5°C 0.01mm 94% 0cm -15° 3.4°C 0mm 0.04kPa 7232m 6.3m/s 3.5m/s
23:00
0% 3.1°C 0.26mm 95% 0cm -21° 3.8°C 0.13mm 0.04kPa 4728m 6.9m/s 3.7m/s
Mon, May 25 Sunrise 05:09 Sunset 20:16
24:00
0% 3.7°C 0.39mm 97% 0cm -24° 4.1°C 0.5mm 0.02kPa 2770m 6.4m/s 3.7m/s
01:00
0% 4.2°C 0.18mm 98% 0cm -25° 4.5°C 0.75mm 0.02kPa 3502m 6.5m/s 3.7m/s
02:00
0% 4.8°C 0.32mm 99% 0cm -22° 5°C 1.8mm 0.01kPa 2736m 6.6m/s 3.8m/s
03:00
0% 5.1°C 0.2mm 99% 0cm -18° 5.3°C 0.13mm 0.01kPa 2919m 5.8m/s 3.4m/s
04:00
0% 5.4°C 1.4mm 99% 0cm -11° 5.6°C 1.2mm 0.01kPa 2667m 5.8m/s 3.4m/s
05:00
0% 5.5°C 1.5mm 99% 0cm -2.1° 5.7°C 2.7mm 0.01kPa 1866m 4.7m/s 2.7m/s
06:00
0% 5.7°C 5.1mm 99% 0cm 7.4° 5.8°C 5.5mm 0.01kPa 993m 4.9m/s 2.9m/s
07:00
0% 5.7°C 0.83mm 99% 0cm 18° 5.9°C 8mm 0.01kPa 2011m 4.4m/s 2.6m/s
08:00
0% 6.1°C 0.69mm 99% 0cm 28° 6.3°C 8.6mm 0.01kPa 2324m 4.1m/s 2.4m/s
09:00
0% 6.5°C 1.3mm 99% 0cm 39° 6.7°C 1.1mm 0.01kPa 2413m 3.1m/s 1.7m/s
10:00
0% 6.8°C 0.36mm 99% 0cm 49° 7°C 1.7mm 0.01kPa 4353m 1m/s 0.68m/s
11:00
0% 7.1°C 0.52mm 99% 0cm 59° 7.3°C 2.6mm 0.01kPa 4143m 0.71m/s 0.14m/s
12:00
0% 8.5°C 0.01mm 99% 0cm 65° 8.6°C 2.8mm 0.01kPa 24134m 2.8m/s 2m/s
13:00
0% 10°C 0mm 96% 0cm 67° 11°C 2.8mm 0.05kPa 5151m 2.7m/s 2m/s
14:00
0% 11°C 0.01mm 91% 0cm 62° 12°C 2.8mm 0.12kPa 24134m 3.4m/s 2.6m/s
15:00
0% 11°C 0mm 86% 0cm 53° 13°C 0mm 0.2kPa 24135m 3.3m/s 2.5m/s
16:00
0% 10°C 0mm 80% 0cm 43° 14°C 0mm 0.31kPa 24134m 3.5m/s 2.5m/s
17:00
0% 10°C 0mm 80% 0cm 33° 14°C 0mm 0.32kPa 24135m 4.2m/s 2.6m/s
18:00
0% 10°C 0mm 83% 0cm 22° 13°C 0mm 0.25kPa 24134m 3.5m/s 2.1m/s
19:00
0% 10°C 0.01mm 90% 0cm 12° 12°C 0mm 0.14kPa 24134m 3.5m/s 2m/s
20:00
0% 10°C 0mm 96% 0cm 11°C 0mm 0.06kPa 24135m 3.5m/s 1.8m/s
21:00
4% 9.4°C 0mm 95% 0cm -7.2° 10°C 0mm 0.06kPa 24134m 2.9m/s 1.6m/s
22:00
7% 8.1°C 0mm 95% 0cm -15° 8.8°C 0mm 0.05kPa 24135m 2m/s 1.6m/s
23:00
11% 7.8°C 0mm 95% 0cm -21° 8.6°C 0mm 0.06kPa 24134m 1.3m/s 1.4m/s
Tue, May 26 Sunrise 05:09 Sunset 20:17
24:00
11% 7.5°C 0mm 92% 0cm -24° 8.6°C 0mm 0.08kPa 24134m 1.2m/s 0.95m/s
01:00
11% 6.5°C 0mm 95% 0cm -24° 7.2°C 0mm 0.05kPa 24134m 1m/s 0.36m/s
02:00
11% 5.8°C 0mm 94% 0cm -22° 6.6°C 0mm 0.06kPa 24135m 0.91m/s 0.25m/s
03:00
18% 5.5°C 0mm 93% 0cm -17° 6.5°C 0mm 0.06kPa 24134m 0.8m/s 0.1m/s
04:00
26% 5.6°C 0mm 93% 0cm -11° 6.6°C 0mm 0.07kPa 24135m 0.72m/s 0.2m/s
05:00
33% 5.6°C 0mm 92% 0cm -2° 6.8°C 0mm 0.08kPa 24134m 0.5m/s 0.39m/s
06:00
33% 5.9°C 0mm 87% 0cm 7.5° 8°C 0mm 0.14kPa 24135m 0.42m/s 0.32m/s
07:00
33% 7.7°C 0mm 83% 0cm 18° 11°C 0mm 0.22kPa 24134m 0.8m/s 0.68m/s
08:00
33% 8°C 0mm 71% 0cm 28° 13°C 0mm 0.45kPa 24134m 0.92m/s 0.86m/s
09:00
51% 7.9°C 0mm 56% 0cm 39° 17°C 0mm 0.84kPa 24134m 0.8m/s 1.1m/s
10:00
68% 7.7°C 0mm 49% 0cm 49° 19°C 0mm 1.1kPa 24135m 1m/s 1.2m/s
11:00
86% 7.6°C 0mm 44% 0cm 59° 20°C 0mm 1.3kPa 24135m 1.7m/s 1.6m/s
12:00
86% 7.6°C 0mm 42% 0cm 65° 21°C 0mm 1.4kPa 24134m 2.3m/s 2.2m/s
13:00
86% 7.6°C 0mm 41% 0cm 67° 21°C 0mm 1.5kPa 24135m 2.6m/s 2.4m/s
14:00
86% 7.7°C 0mm 40% 0cm 62° 22°C 0mm 1.6kPa 24134m 3.4m/s 3m/s
15:00
78% 9.4°C 0mm 51% 0cm 54° 20°C 0.02mm 1.1kPa 24134m 6m/s 3m/s
16:00
70% 11°C 0mm 61% 0cm 44° 18°C 0.04mm 0.82kPa 24135m 8.6m/s 3.1m/s
17:00
62% 11°C 0mm 71% 0cm 33° 16°C 0.06mm 0.54kPa 24135m 11m/s 3.1m/s
18:00
62% 11°C 0mm 78% 0cm 22° 15°C 0.08mm 0.38kPa 24135m 8.1m/s 2.7m/s
19:00
63% 11°C 0mm 85% 0cm 12° 14°C 0.1mm 0.24kPa 24135m 5.1m/s 2.2m/s
20:00
63% 11°C 0mm 92% 0cm 2.2° 12°C 0.13mm 0.12kPa 24135m 2m/s 1.8m/s
21:00
64% 11°C 0.003mm 93% 0cm -7° 12°C 0.13mm 0.1kPa 24135m 1.9m/s 1.7m/s
22:00
64% 11°C 0.007mm 94% 0cm -15° 12°C 0.13mm 0.09kPa 24135m 1.8m/s 1.6m/s
23:00
65% 12°C 0.01mm 95% 0cm -20° 12°C 0.13mm 0.07kPa 24135m 1.7m/s 1.4m/s
Wed, May 27 Sunrise 05:08 Sunset 20:18
24:00
62% 12°C 0.03mm 95% 0cm -24° 13°C 0.21mm 0.07kPa 24135m 1.7m/s 1.3m/s
01:00
60% 12°C 0.04mm 96% 0cm -24° 13°C 0.29mm 0.07kPa 24135m 1.7m/s 1.1m/s
02:00
57% 13°C 0.06mm 96% 0cm -22° 13°C 0.38mm 0.06kPa 24135m 1.7m/s 0.97m/s
03:00
50% 12°C 0.04mm 84% 0cm -17° 15°C 0.4mm 0.27kPa 24135m 3.1m/s 1.7m/s
04:00
44% 12°C 0.02mm 72% 0cm -10° 17°C 0.42mm 0.53kPa 24135m 4.5m/s 2.5m/s
05:00
37% 11°C 0mm 61% 0cm -1.9° 19°C 0.44mm 0.83kPa 24135m 5.9m/s 3.2m/s
06:00
31% 10°C 0mm 55% 0cm 7.6° 19°C 0.5mm 1kPa 24135m 6.5m/s 3.7m/s
07:00
26% 9.1°C 0mm 48% 0cm 18° 20°C 0.56mm 1.2kPa 24135m 7.1m/s 4.2m/s
08:00
20% 7.9°C 0mm 42% 0cm 28° 21°C 0.63mm 1.4kPa 24135m 7.7m/s 4.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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