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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 76% failing
Wind Speed 60% failing

Upcoming Opportunities

When all conditions match, PhotoWeather marks an opportunity window.

Times shown in America/Los_Angeles

No opportunities in the next 14 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 72 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
Sun, Jan 11
04:000%1.5°C10200m7.2m/s
05:000%1.7°C6900m7.4m/s
06:000%2°C15200m8.1m/s
07:000%1.9°C14700m7.9m/s
08:000%1.2°C5900m7.7m/s
09:000%1.1°C5400m7.1m/s
10:000%0.9°C6400m7.1m/s
11:000%0.9°C3500m7m/s
12:000%1.1°C5800m7.1m/s
13:000%1.2°C4200m7.2m/s
14:000%1.4°C3200m8.1m/s
15:000%1.4°C8300m8m/s
16:000%0.9°C3300m8.1m/s
17:000%1.2°C4300m8.5m/s
18:000%1.4°C7300m8.9m/s
19:000%0.3°C600m9.1m/s
20:000%0.5°C1400m9m/s
21:000%1.4°C13300m8.8m/s
22:000%0.5°C3200m9.1m/s
23:000%0.3°C1100m7.9m/s
Mon, Jan 12
24:000%0.9°C4900m9.5m/s
01:000%0.8°C4400m8.6m/s
02:000%0.6°C3000m8.8m/s
03:000%0.9°C3100m8.8m/s
04:000%0.5°C1500m8.6m/s
05:000%0.8°C1300m7.4m/s
06:000%0.5°C2900m6.8m/s
07:000%0.6°C2000m6.2m/s
08:000%0.9°C3700m5.6m/s
09:000%0.6°C1700m4.2m/s
10:000%0.9°C2600m4.6m/s
11:000%0.8°C2400m4.8m/s
12:000%0.9°C4000m5.5m/s
13:000%0.6°C3100m6.1m/s
14:000%0.2°C300m6.3m/s
15:000%0.5°C3700m5.5m/s
16:000%0.2°C100m6m/s
17:000%0.2°C100m6.2m/s
18:0037%0.2°C100m5.6m/s
19:0037%0.2°C100m5m/s
20:0051%0.2°C240m4m/s
21:0073%0.3°C8200m3.5m/s
22:0059%0.3°C18040m2.7m/s
23:0033%0.2°C13060m1.9m/s
Tue, Jan 13
24:0030%0.2°C24140m1.7m/s
01:0059%0.2°C24140m1.5m/s
02:0059%0.2°C24140m1.3m/s
03:0069%0.3°C24140m1.1m/s
04:0069%0.3°C24140m0.89m/s
05:0069%0.3°C24140m0.94m/s
06:0069%0.3°C24140m0.85m/s
07:0069%0.3°C24140m0.64m/s
08:0069%0.3°C24140m1m/s
09:0069%0.3°C24140m0.9m/s
10:0064%0.6°C24140m0.32m/s
11:000%0.9°C24140m0.1m/s
12:000%1.1°C24140m0.58m/s
13:000%1.4°C24140m0.5m/s
14:000%1.4°C24140m0.45m/s
15:000%1.1°C24140m0.94m/s
16:0064%0.6°C24140m0.9m/s
17:0067%0.5°C24140m1.7m/s
18:0067%0.5°C24140m1.7m/s
19:0067%0.5°C24140m1.7m/s
20:0064%0.6°C24140m1.3m/s
21:0067%0.5°C24140m0.92m/s
22:0067%0.5°C24140m0.78m/s
23:0067%0.5°C24140m0.91m/s
Wed, Jan 14
24:0064%0.6°C24140m1.3m/s
01:0064%0.6°C24140m1m/s
02:0067%0.5°C24140m0.4m/s
03:0067%0.5°C24140m0.58m/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
Sun, Jan 11 Sunrise 08:04 Sunset 16:45
05:00
6.4°C 1.2mm 89% 0cm 8.1°C 1.2mm 0.12kPa 17m/s
06:00
6°C 0.1mm 87% 0cm 8°C 0.1mm 0.14kPa 17m/s
07:00
6.2°C 0.3mm 88% 0cm 8.1°C 0.3mm 0.13kPa 17m/s
08:00
7.1°C 0.9mm 92% 0cm 8.3°C 0.9mm 0.09kPa 17m/s
09:00
7.6°C 0.7mm 93% 0cm 8.7°C 0.7mm 0.08kPa 16m/s
10:00
7.9°C 1.5mm 94% 0cm 8.8°C 1.5mm 0.07kPa 14m/s
11:00
8.3°C 1.1mm 94% 0cm 9.2°C 1.1mm 0.07kPa 15m/s
12:00
8.4°C 0.9mm 93% 0cm 9.5°C 0.9mm 0.08kPa 16m/s
13:00
8.5°C 3.7mm 92% 0cm 9.7°C 3.7mm 0.1kPa 17m/s
14:00
8.5°C 5.5mm 91% 0cm 9.9°C 5.5mm 0.11kPa 19m/s
15:00
8.6°C 4mm 91% 0cm 10°C 4mm 0.11kPa 18m/s
16:00
8.9°C 2.9mm 94% 0cm 9.8°C 2.9mm 0.07kPa 18m/s
17:00
8.7°C 2.4mm 92% 0cm 9.9°C 2.4mm 0.1kPa 20m/s
18:00
8.8°C 5.3mm 91% 0cm 10°C 5.3mm 0.11kPa 19m/s
19:00
9.6°C 1.8mm 98% 0cm 9.9°C 1.8mm 0.02kPa 19m/s
20:00
9.8°C 10mm 97% 0cm 10°C 10mm 0.04kPa 19m/s
21:00
9°C 0mm 91% 0cm 10°C 0mm 0.11kPa 20m/s
22:00
9.7°C 1.8mm 97% 0cm 10°C 1.8mm 0.04kPa 19m/s
23:00
9.8°C 12mm 98% 0cm 10°C 12mm 0.02kPa 18m/s
Mon, Jan 12 Sunrise 08:04 Sunset 16:46
24:00
9.4°C 1.1mm 94% 0cm 10°C 1.1mm 0.08kPa 19m/s
01:00
9.5°C 1.1mm 95% 0cm 10°C 1.1mm 0.06kPa 18m/s
02:00
9.7°C 2.2mm 96% 0cm 10°C 2.2mm 0.05kPa 18m/s
03:00
9.6°C 2.2mm 94% 0cm 11°C 2.2mm 0.08kPa 18m/s
04:00
9.9°C 2.9mm 97% 0cm 10°C 2.9mm 0.04kPa 18m/s
05:00
9.8°C 21mm 95% 0cm 11°C 21mm 0.06kPa 16m/s
06:00
10°C 1.8mm 97% 0cm 11°C 1.8mm 0.04kPa 15m/s
07:00
10°C 7.6mm 96% 0cm 11°C 7.6mm 0.05kPa 14m/s
08:00
9.8°C 2.2mm 94% 0cm 11°C 2.2mm 0.08kPa 13m/s
09:00
10°C 10mm 96% 0cm 11°C 10mm 0.05kPa 11m/s
10:00
9.9°C 6.8mm 94% 0cm 11°C 6.8mm 0.08kPa 9.5m/s
11:00
10°C 5.4mm 95% 0cm 11°C 5.4mm 0.06kPa 12m/s
12:00
9.8°C 3.6mm 94% 0cm 11°C 3.6mm 0.08kPa 12m/s
13:00
9.9°C 4mm 96% 0cm 11°C 4mm 0.05kPa 12m/s
14:00
10°C 1.1mm 99% 0cm 10°C 1.1mm 0.01kPa 13m/s
15:00
9.9°C 2.5mm 97% 0cm 10°C 2.5mm 0.04kPa 12m/s
16:00
10°C 0.4mm 99% 0cm 10°C 0.4mm 0.01kPa 12m/s
17:00
10°C 1.1mm 99% 0cm 10°C 1.1mm 0.01kPa 12m/s
18:00
10°C 0.7mm 99% 0cm 10°C 0.7mm 0.01kPa 11m/s
19:00
9.9°C 0.4mm 99% 0cm 10°C 0.4mm 0.01kPa 10m/s
20:00
10°C 0.5mm 99% 0cm 10°C 0.5mm 0.01kPa 9.3m/s
21:00
10°C 0mm 98% 0cm 11°C 0mm 0.03kPa 9.6m/s
22:00
11°C 0.1mm 98% 0cm 11°C 0.1mm 0.03kPa 9.1m/s
23:00
11°C 0.3mm 99% 0cm 11°C 0.3mm 0.01kPa 8.7m/s
Tue, Jan 13 Sunrise 08:03 Sunset 16:48
24:00
11°C 0.2mm 99% 0cm 11°C 0.2mm 0.01kPa 8.4m/s
01:00
11°C 0mm 99% 0cm 11°C 0mm 0.01kPa 8.4m/s
02:00
11°C 0mm 99% 0cm 11°C 0mm 0.01kPa 6.4m/s
03:00
11°C 0mm 98% 0cm 11°C 0mm 0.03kPa 4.4m/s
04:00
10°C 0mm 98% 0cm 11°C 0mm 0.03kPa 2.7m/s
05:00
10°C 0mm 98% 0cm 10°C 0mm 0.03kPa 2.1m/s
06:00
9.5°C 0mm 98% 0cm 9.8°C 0mm 0.02kPa 1.5m/s
07:00
9°C 0mm 98% 0cm 9.3°C 0mm 0.02kPa 1.2m/s
08:00
8.8°C 0mm 98% 0cm 9.1°C 0mm 0.02kPa 1.3m/s
09:00
9.6°C 0mm 98% 0cm 9.9°C 0mm 0.02kPa 1.3m/s
10:00
11°C 0mm 96% 0cm 11°C 0mm 0.05kPa 1.2m/s
11:00
11°C 0mm 94% 0cm 12°C 0mm 0.09kPa 0.9m/s
12:00
12°C 0mm 93% 0cm 13°C 0mm 0.1kPa 0.3m/s
13:00
12°C 0mm 91% 0cm 14°C 0mm 0.14kPa 1.2m/s
14:00
13°C 0mm 91% 0cm 14°C 0mm 0.14kPa 0.5m/s
15:00
13°C 0mm 93% 0cm 14°C 0mm 0.11kPa 1.6m/s
16:00
12°C 0mm 96% 0cm 13°C 0mm 0.06kPa 1m/s
17:00
11°C 0mm 97% 0cm 11°C 0mm 0.04kPa 1.4m/s
18:00
10°C 0mm 97% 0cm 11°C 0mm 0.04kPa 1.6m/s
19:00
9.7°C 0mm 97% 0cm 10°C 0mm 0.04kPa 1.5m/s
20:00
9.2°C 0mm 96% 0cm 9.8°C 0mm 0.05kPa 1m/s
21:00
8.9°C 0mm 97% 0cm 9.4°C 0mm 0.04kPa 0.6m/s
22:00
8.7°C 0mm 97% 0cm 9.2°C 0mm 0.03kPa 0.7m/s
23:00
9.3°C 0mm 97% 0cm 9.8°C 0mm 0.04kPa 1.2m/s
Wed, Jan 14 Sunrise 08:03 Sunset 16:49
24:00
10°C 0mm 96% 0cm 11°C 0mm 0.05kPa 1.3m/s
01:00
10°C 0mm 96% 0cm 11°C 0mm 0.05kPa 0.8m/s
02:00
9.1°C 0mm 97% 0cm 9.6°C 0mm 0.04kPa 0.4m/s
03:00
8.5°C 0mm 97% 0cm 9°C 0mm 0.03kPa 0.9m/s
04:00
8.3°C 0mm 98% 0cm 8.6°C 0mm 0.02kPa 1.3m/s
How to read: these inputs help produce the derived score; they are not requirements by themselves.

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