Otherwise, snow typically melts seasonally, causing runoff into streams and rivers and recharging groundwater. Major snow-prone areas include the polar regions, the northernmost half of the …

4 days ago · 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.

5 days ago · First big snow storm to hit US as polar vortex sends coldest air yet A long-awaited blast of cold air, courtesy of the polar vortex, will overtake much of the US, but the forecast …

2 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.

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...

What is snow? Snow is precipitation that forms when water vapor freezes. It is not frozen rain, but a crystallization of ice that typically forms in clouds.

4 days ago · Sixty million people from the northern Plains through the Southeast are under cold weather alerts this weekend and will face dangerously cold wind chills.

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 …

Follow along with us on the latest weather we're watching, the threats it may bring and check out the extended forecast each day to be prepared. You can find the forecast for the days ahead …

Snow depth and snow accumulation lookup by city, ZIP code, or state.