The most frequently used methods to map and measure snow extent, snow depth and snow water equivalent employ multiple inputs on the visible–infrared spectrum to deduce the presence and …

Dec 14, 2025 · Snow, the solid form of water that crystallizes in the atmosphere and, falling to the Earth, covers, permanently or temporarily, about 23 percent of the Earth’s surface.

Snow is precipitation that forms when water vapor freezes. Snow falls as ice crystals from clouds when temperatures drop below freezing and there is enough humidity in the air.

Your trusted source for the most accurate weather forecast, snow report, high-resolution weather maps, and ski conditions information.

See latest United States ski conditions, updated daily with snowfall totals, snow depths, open lifts & terrain for all ski resorts in United States.

Explore national winter weather forecast maps and cities impacted by snow and ice. Our 24-hour snowfall forecast feature displays an interactive map prediction of snowfall accumulation over...

3 days ago · Note: these data are unofficial and provisional. Zip codes (where available) of observations will be included in text files after October 7, 2008.

Feb 10, 2025 · Snow is more than a winter spectacle; it’s a fascinating natural phenomenon with important roles in the environment. This article breaks down how snow forms, its types, and why it …

Nov 28, 2025 · Snowfall patterns are shifting as the climate warms, with many regions already seeing declines. These shifts impact water supply, ecosystems, winter recreation and hydropower …

Snow forecast map for United States showing snow accumulation over the next 10 days and past 7 days, plus snow reports, live weather conditions and webcams. Find the best snow conditions in …