FogCast · Dead Horse Point, UT
Fog Forecast for Dead Horse Point
Know before you drive: FogCast checks the conditions that produce photogenic fog
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Fog photography at Dead Horse Point
Dead Horse Point is a mesa-top state park in Utah's canyon country, where a narrow neck of land extends to a point 600 meters above the Colorado River and the Canyonlands basin. The view from the rim takes in one of the deepest and widest canyon perspectives in the American Southwest — the river making an almost complete loop below while the La Sal Mountains rise above the red rock horizon. When fog or low cloud forms in the canyon depths while the mesa rim is clear, the effect is one of the most dramatic inversion photography scenes in the western US.
The main overlook and the east and west rim trails give multiple angles on the canyon below. Canyon fog at Dead Horse Point is a rare but exceptional event — it forms most often in late autumn and winter when cold air drains into the Colorado River canyon overnight and cloud forms at the canyon bottom while the mesa rim at 1,800 meters is above the inversion layer. The fog or cloud glows at sunrise before the sun reaches the canyon floor, and the La Sal Mountains above provide a three-layer composition of snow, mesa, and fog.
Canyon fog in the Moab area forms when cold air pools in the Colorado River valley after clear, cold nights. The canyon is deep enough (600 meters at Dead Horse) that even a shallow fog layer is completely invisible from above until the rim, creating a dramatic reveal effect when approaching the overlook in darkness. Check overnight temperatures at the Moab valley floor — if they drop below 5°C with high humidity and calm winds, dawn fog in the canyon is worth the drive.
Other fog photography locations
Why fog is hard to predict
Humidity alone isn't enough. Wind alone isn't enough. Cloud cover alone isn't enough. Photogenic valley fog requires several conditions to line up at once, and most weather apps don't read them together.
Dew Point Depression
When air temperature and dew point converge below 2°C, the air is near saturation. This is the single strongest fog predictor and the first thing FogCast checks.
Wind Speed
Fog needs calm air. Below 5 km/h is ideal. Above 15 km/h, fog disperses before it can pool in the valley. A standard weather app won't flag this combination.
Overnight Sky Clarity
Clear overnight skies let the ground cool rapidly, pushing surface temperatures toward the dew point. Counterintuitively, clouds overnight suppress radiation fog.
Temperature Trend
FogCast reads the overnight temperature arc. If temps are converging toward the dew point hour by hour, fog probability increases significantly by pre-dawn.
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What the app shows you
Set a threshold and get a notifications when fog will form. Never check manually again.
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Frequently asked
Can I check FogCast on the website?
This page shows a preview of current conditions, including humidity, wind, temperature, and dew point. The full FogCast score, 7-day outlook, push notifications, and best shooting windows are available exclusively in the LightCast app for iOS.
Is FogCast free?
The current conditions preview on this page is free, no account needed. The full FogCast tool is in the LightCast Suite iOS app, which includes a 7-day free trial. After the trial it's $2.99/month, cancel anytime in the App Store.
Why use FogCast instead of checking humidity?
Humidity alone doesn't tell you whether photogenic fog is likely. High humidity with strong wind produces no fog at all. FogCast combines dew point depression, wind speed, overnight sky clarity, temperature trend, and visibility into a single score built specifically for fog photography planning.
What is FogCast's scoring scale?
FogCast scores fog conditions from 0 to 100. A score of 75 or above indicates dense fog is expected. 55 to 74 means fog is likely and worth chasing. 35 to 54 suggests patchy mist is possible. Below 35, conditions are unlikely to produce photogenic fog. The full score is available in the LightCast app.