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Rule Fog Hunter

Olympic Rainforest - Fog Hunter - Pacific Northwest

Forks, Washington, 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 · ≥ 85.0% Dewpoint Spread · ≤ 2.0°C Visibility · ≤ 3000.0m Wind Speed · ≤ 2.0m/s

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
Visibility 79% failing
Wind Speed 54% failing

Currently

Real-time conditions
Dewpoint Spread1.3°C
Visibility22933 (Clear)
Relative Humidity92%
Wind Speed5.0m/s (moderate winds)

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Los_Angeles

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 conditions that create the Pacific Northwest's legendary atmospheric photography. We combine fog probability, dewpoint spread, visibility, and wind data to predict when and where fog will form.

The Pacific Northwest's unique geography—where cold ocean currents meet temperate rainforests and volcanic peaks—creates fog conditions unmatched anywhere in North America. From the Hoh Rainforest's ethereal mist to the Columbia River Gorge's valley fog, this region offers year-round fog photography opportunities.

What makes the Pacific Northwest special for fog photography:

  • Marine influence - Cold Pacific currents generate coastal fog that rolls inland through river valleys
  • Rainforest atmosphere - Olympic's temperate rainforest creates perpetual mist and filtered light
  • Temperature inversions - Mountain valleys trap fog below while peaks remain clear
  • Varied terrain - Photograph fog against waterfalls, old-growth forests, sea stacks, and volcanic peaks

Peak fog season runs from late summer through fall, when temperature differentials between land and sea are greatest. Morning fog often burns off by midday, so arrive before sunrise for the most dramatic conditions. The Columbia River Gorge is particularly reliable for valley fog, while coastal locations like Cannon Beach offer fog throughout the year.

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72-hour requirements breakdown

What passed or failed, hour by hour
0matching hours in the next 95 hours
AND logic: all conditions required
Meets requirement
Misses requirement
Time
America/Los_Angeles
Fog Probability
≥ 85.0%
Dewpoint Spread
≤ 2.0°C
Visibility
≤ 3000.0m
Wind Speed
≤ 2.0m/s
Tue, Mar 3
17:000%0.2°C252m3.9m/s
18:000%0.4°C4131m3.9m/s
19:000%0.3°C437m3.2m/s
20:000%0.3°C410m3.3m/s
21:000%0.3°C298m3.6m/s
22:000%0.3°C671m3.5m/s
23:000%0.2°C284m3m/s
Wed, Mar 4
24:000%0.3°C3874m2.2m/s
01:000%0.3°C773m2.5m/s
02:000%0.1°C1982m2.4m/s
03:000%0.2°C1586m2.1m/s
04:000%0.2°C15694m1.5m/s
05:0039%0.2°C14929m1.6m/s
06:0039%0.2°C11261m1.5m/s
07:0035%0.3°C20997m0.95m/s
08:0032%0.6°C22793m0.44m/s
09:000%1.3°C24135m0.61m/s
10:000%2.8°C21912m1.3m/s
11:000%2.7°C21608m2.2m/s
12:000%3°C15381m3m/s
13:000%2.9°C19508m4.2m/s
14:000%2.9°C24135m4.1m/s
15:000%3.3°C24135m4.5m/s
16:000%2.2°C22314m4.9m/s
17:000%1.3°C22933m5m/s
18:000%1.6°C24134m4.5m/s
19:000%1.3°C24134m4.1m/s
20:000%1.6°C23556m3.9m/s
21:000%1.4°C21213m4.1m/s
22:000%1.3°C24134m4.8m/s
23:000%1.5°C24135m5.2m/s
Thu, Mar 5
24:000%1.7°C24135m5.1m/s
01:000%1.8°C24134m4.8m/s
02:000%2.4°C24134m4.7m/s
03:000%2.7°C24134m3.8m/s
04:000%2.8°C24135m3.9m/s
05:000%3.4°C24134m3.5m/s
06:000%3.2°C24134m3.2m/s
07:000%3.1°C24134m3.6m/s
08:000%3.2°C24135m3.9m/s
09:000%3.1°C24135m3.6m/s
10:000%3°C23673m3.4m/s
11:000%2.7°C24134m2.9m/s
12:000%3.3°C24134m3.5m/s
13:000%3.1°C24134m2.7m/s
14:000%4.2°C24134m2.9m/s
15:000%4.2°C24135m1.8m/s
16:000%3.6°C24134m1.9m/s
17:000%2.1°C24135m2m/s
18:000%1.3°C24061m1.8m/s
19:0030%0.9°C18737m1.6m/s
20:0036%0.6°C12872m1.2m/s
21:000%0.6°C16326m1.8m/s
22:000%0.7°C24135m2.3m/s
23:0060%0.7°C24134m2.3m/s
Fri, Mar 6
24:0064%0.7°C24135m2.2m/s
01:0064%0.7°C24134m1.9m/s
02:0060%0.8°C24134m1.6m/s
03:0060%0.9°C24135m1.7m/s
04:000%1°C24134m1.4m/s
05:000%1.1°C24134m1.1m/s
06:000%1.2°C24135m0.95m/s
07:000%1.1°C24134m1m/s
08:000%1.2°C24134m1.2m/s
09:000%1.2°C24134m1.1m/s
10:000%1.5°C24135m1m/s
11:000%1.5°C24135m0.91m/s
12:000%1.5°C24134m0.8m/s
13:000%1.6°C24134m1.1m/s
14:000%1.5°C24134m1.1m/s
15:000%1.6°C24135m1.1m/s
16:000%1.3°C24135m1.1m/s
17:000%1°C24135m1.1m/s
18:0060%0.8°C24135m1.3m/s
19:0060%0.8°C24134m0.8m/s
20:0064%0.7°C24135m1.4m/s
21:0032%0.7°C19785m1.2m/s
22:0033%0.5°C17089m1.2m/s
23:0038%0.3°C11960m1.4m/s
Sat, Mar 7
24:0043%0.2°C6831m1.6m/s
01:0054%0.2°C1702m1.8m/s
02:0054%0.2°C1325m1.9m/s
03:0060%0.2°C947m2m/s
04:0060%0.2°C570m2.2m/s
05:0060%0.2°C454m2.2m/s
06:0060%0.2°C339m2.2m/s
07:0060%0.2°C223m2.3m/s
08:0060%0.2°C541m2.2m/s
09:000%0.2°C859m2.2m/s
10:000%0.2°C1177m2.2m/s
11:000%0.2°C878m2.4m/s
12:0048%0.2°C578m2.7m/s
13:0048%0.1°C278m2.9m/s
14:000%0.2°C232m2.9m/s
15:000%0.1°C186m2.9m/s
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/Los_Angeles
Dew Point
°C
Rainfall
mm
Relative Humidity
%
Snowfall
cm
Temperature
°C
Total Precipitation
mm
Vapor Pressure Deficit
kPa
Wind Gusts
m/s
Wed, Mar 4 Sunrise 06:50 Sunset 18:06
17:00
6.7°C 0mm 92% 0cm 8°C 0.13mm 0.09kPa 9.1m/s
18:00
5.7°C 0mm 90% 0cm 7.3°C 0.19mm 0.1kPa 9.1m/s
19:00
5.2°C 0mm 91% 0cm 6.5°C 0.25mm 0.08kPa 8.9m/s
20:00
5.1°C 0mm 90% 0cm 6.7°C 0.44mm 0.1kPa 8.3m/s
21:00
5.2°C 0mm 91% 0cm 6.6°C 0.69mm 0.09kPa 8.4m/s
22:00
5.2°C 0mm 91% 0cm 6.5°C 0.88mm 0.09kPa 9.1m/s
23:00
4.7°C 0mm 90% 0cm 6.2°C 0.13mm 0.1kPa 9.2m/s
Thu, Mar 5 Sunrise 06:50 Sunset 18:06
24:00
4.3°C 0.02mm 89% 0cm 6°C 0.25mm 0.1kPa 8.8m/s
01:00
3.9°C 0.01mm 88% 0cm 5.7°C 0.38mm 0.11kPa 8.7m/s
02:00
3.1°C 0mm 84% 0cm 5.5°C 0.38mm 0.14kPa 8.7m/s
03:00
2.7°C 0.01mm 82% 0cm 5.4°C 0.44mm 0.16kPa 8m/s
04:00
2.7°C 0.02mm 82% 0cm 5.5°C 0.44mm 0.16kPa 8.1m/s
05:00
2.3°C 0.01mm 78% 0cm 5.7°C 0mm 0.2kPa 7.8m/s
06:00
2.6°C 0mm 80% 0cm 5.8°C 0.06mm 0.19kPa 7.4m/s
07:00
2.8°C 0.01mm 81% 0cm 5.9°C 0.13mm 0.18kPa 7.7m/s
08:00
2.9°C 0mm 80% 0cm 6.1°C 0.19mm 0.19kPa 7.7m/s
09:00
3.4°C 0mm 81% 0cm 6.5°C 0.25mm 0.18kPa 6.7m/s
10:00
4°C 0mm 81% 0cm 7°C 0.44mm 0.19kPa 6m/s
11:00
4.3°C 0mm 83% 0cm 7°C 0.19mm 0.17kPa 5.1m/s
12:00
4.3°C 0mm 80% 0cm 7.6°C 0.38mm 0.21kPa 4.9m/s
13:00
4.3°C 0.01mm 81% 0cm 7.4°C 0.5mm 0.2kPa 4.5m/s
14:00
3.8°C 0mm 75% 0cm 8°C 0.56mm 0.27kPa 4.9m/s
15:00
3.6°C 0mm 75% 0cm 7.8°C 0.56mm 0.27kPa 3.2m/s
16:00
4°C 0mm 78% 0cm 7.6°C 0.63mm 0.23kPa 2.8m/s
17:00
4.8°C 0mm 87% 0cm 6.9°C 0.06mm 0.13kPa 3.5m/s
18:00
4.9°C 0.04mm 91% 0cm 6.2°C 0.13mm 0.08kPa 3.6m/s
19:00
5°C 0.45mm 94% 0cm 5.9°C 0.31mm 0.06kPa 2.7m/s
20:00
5.1°C 0.82mm 96% 0cm 5.7°C 0.94mm 0.04kPa 1.9m/s
21:00
5°C 0.48mm 96% 0cm 5.6°C 1.5mm 0.04kPa 3.7m/s
22:00
4.8°C 0.06mm 96% 0cm 5.5°C 1.9mm 0.04kPa 5.2m/s
23:00
4.6°C 0mm 95% 0cm 5.3°C 0mm 0.05kPa 5.3m/s
Fri, Mar 6 Sunrise 06:48 Sunset 18:08
24:00
4.5°C 0mm 95% 0cm 5.2°C 0mm 0.04kPa 4.9m/s
01:00
4.5°C 0mm 95% 0cm 5.2°C 0mm 0.04kPa 3.5m/s
02:00
4.7°C 0.02mm 95% 0cm 5.5°C 0mm 0.05kPa 2.4m/s
03:00
4.7°C 0.01mm 94% 0cm 5.6°C 0.06mm 0.05kPa 2.4m/s
04:00
4.7°C 0.01mm 93% 0cm 5.7°C 0.06mm 0.06kPa 1.4m/s
05:00
4.8°C 0.01mm 92% 0cm 5.9°C 0mm 0.07kPa 1.1m/s
06:00
4.8°C 0mm 92% 0cm 6°C 0mm 0.07kPa 1m/s
07:00
4.9°C 0mm 92% 0cm 6°C 0mm 0.07kPa 1.1m/s
08:00
5°C 0mm 92% 0cm 6.2°C 0mm 0.07kPa 1.3m/s
09:00
5.6°C 0.01mm 92% 0cm 6.8°C 0mm 0.08kPa 1.7m/s
10:00
5.8°C 0.01mm 90% 0cm 7.3°C 0.06mm 0.1kPa 1.9m/s
11:00
6.1°C 0.03mm 90% 0cm 7.6°C 0mm 0.11kPa 1.8m/s
12:00
6.4°C 0mm 90% 0cm 7.9°C 0.06mm 0.1kPa 1.6m/s
13:00
6.6°C 0mm 90% 0cm 8.2°C 0.06mm 0.11kPa 2.1m/s
14:00
6.8°C 0mm 90% 0cm 8.3°C 0.06mm 0.11kPa 2.2m/s
15:00
6.8°C 0mm 90% 0cm 8.4°C 0.06mm 0.11kPa 2.1m/s
16:00
6.8°C 0mm 92% 0cm 8.1°C 0.06mm 0.08kPa 2m/s
17:00
6.7°C 0mm 93% 0cm 7.7°C 0mm 0.07kPa 1.8m/s
18:00
6.4°C 0.01mm 95% 0cm 7.2°C 0mm 0.05kPa 1.8m/s
19:00
6.4°C 0.04mm 95% 0cm 7.2°C 0.06mm 0.05kPa 1m/s
20:00
6.5°C 0.03mm 95% 0cm 7.2°C 0.13mm 0.05kPa 2.1m/s
21:00
6.6°C 0.47mm 96% 0cm 7.3°C 0.25mm 0.05kPa 1.9m/s
22:00
6.8°C 0.51mm 97% 0cm 7.3°C 0.88mm 0.03kPa 1.9m/s
23:00
7.2°C 0.4mm 98% 0cm 7.5°C 0.73mm 0.02kPa 3.1m/s
Sat, Mar 7 Sunrise 06:46 Sunset 18:09
24:00
7.6°C 0.28mm 98% 0cm 7.8°C 0.58mm 0.02kPa 4.2m/s
01:00
7.9°C 0.17mm 99% 0cm 8.1°C 0.44mm 0.01kPa 5.3m/s
02:00
8.1°C 0.17mm 99% 0cm 8.3°C 0.56mm 0.01kPa 5.4m/s
03:00
8.3°C 0.16mm 99% 0cm 8.5°C 0.69mm 0.01kPa 5.4m/s
04:00
8.5°C 0.16mm 99% 0cm 8.7°C 0.81mm 0.01kPa 5.4m/s
05:00
8.6°C 0.21mm 99% 0cm 8.8°C 0.79mm 0.01kPa 5.2m/s
06:00
8.8°C 0.27mm 99% 0cm 9°C 0.77mm 0.01kPa 5m/s
07:00
8.9°C 0.32mm 99% 0cm 9.1°C 0.75mm 0.01kPa 4.8m/s
08:00
8.9°C 0.25mm 99% 0cm 9.1°C 0.92mm 0.01kPa 4.9m/s
09:00
8.9°C 0.17mm 99% 0cm 9.1°C 1.1mm 0.02kPa 5.1m/s
10:00
8.9°C 0.1mm 99% 0cm 9.1°C 1.3mm 0.02kPa 5.2m/s
11:00
8.9°C 0.34mm 99% 0cm 9.1°C 1.1mm 0.01kPa 5.8m/s
12:00
8.9°C 0.58mm 99% 0cm 9.1°C 0.96mm 0.01kPa 6.4m/s
13:00
8.9°C 0.82mm 99% 0cm 9°C 0.81mm 0.01kPa 6.9m/s
14:00
8.8°C 1.5mm 99% 0cm 9°C 2.6mm 0.01kPa 6.8m/s
15:00
8.8°C 2.2mm 99% 0cm 8.9°C 4.4mm 0.01kPa 6.8m/s
16:00
8.8°C 2.9mm 99% 0cm 8.9°C 6.1mm 0.01kPa 6.7m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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