What the app shows you
Full FogCast score, fog type, chase-or-skip verdict, and 10-day outlook — all in the app.
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Know before you drive: FogCast checks the conditions that produce photogenic fog
Get more than a snapshot of current conditions. The LightCast app unlocks everything to plan ahead
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.
Set a FogCast threshold once. The app will alert you when conditions at your saved locations look promising, so you're not manually checking at 4am.
Don't waste a sunrise drive. Check FogCast before you leave.
Download on the App StoreHuangshan — the Yellow Mountains of Anhui Province — is perhaps the single most fog-photogenic mountain range in the world. The granite peaks rising to 1,864 meters above the valleys of southern Anhui have been the subject of Chinese ink wash painting for over a thousand years, and the sea of clouds that regularly fills the valleys between the peaks was the template for that entire artistic tradition. On mornings when the cloud sea rises to the level of the granite peaks and pines, Huangshan becomes something from another dimension of natural beauty.
Guangming Summit, Lotus Peak, and the western sea of clouds viewpoints are the primary photography locations. The Beihai Guesthouse area on the back mountain gives 180-degree views over the cloud sea at dawn when conditions align. The pines — ancient, wind-sculpted Huangshan pines growing from cracks in the granite at impossible angles — are the foreground element that defines Huangshan photography in fog. The Yuping Scenic Area and the Guest Greeting Pine are the most iconic pine-and-fog compositions. March through May and September through November produce the most reliable cloud sea conditions.
Huangshan cloud sea forms when moist air from the Yangtze basin rises and condenses in the mountain valleys. The most spectacular events occur after a frontal passage when a high pressure system builds from the north — the clearing sky at summit level combined with residual moisture and cold valley temperatures produces dense cloud sea filling the valleys while the peaks emerge above. Two to three days after a cold front clears the region, with northeast winds aloft and calm valley conditions, is the optimal window for Huangshan cloud sea photography.