❄️ Snow & Blizzard Radar – Winter Storm Tracking

Live snow and blizzard radar for the United States. Follow winter storms as they move, learn how snow looks different from rain on reflectivity radar, and check warnings before you travel in winter weather.

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Live Winter Storm, Blizzard & Snow Warnings (NWS)

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Alerts are fetched live in your browser from the official National Weather Service API (api.weather.gov). Always confirm warnings with weather.gov and local emergency officials.

How Snow Looks Different From Rain on Radar

On a reflectivity radar map, rain and snow do not look the same. Rain usually shows brighter, more intense colors because liquid water reflects radar energy strongly. Snow typically appears in lighter, more muted colors because snowflakes reflect less energy, even when snowfall is heavy. That is why a winter storm can look unimpressive on radar while still dropping dangerous amounts of snow.

Watch for the rain-snow line: the boundary where precipitation changes from rain to snow. It often shows as a band of brighter reflectivity where melting snowflakes reflect strongly, and its position decides whether your town gets rain, a wintry mix, or all snow. As cold air pushes in, the line moves, and areas that started with rain can change to snow quickly.

How Blizzards Are Tracked

A blizzard is not just heavy snow. It is defined by strong winds and blowing snow that cut visibility to near zero for an extended period, and those winds can create whiteout conditions even after snowfall ends. Radar shows the snow bands, while wind observations and visibility reports confirm blizzard conditions. During a blizzard warning, travel is often impossible and should be avoided entirely.

Winter Storm Safety Basics

Winter Storm Watch vs Warning

A Winter Storm Watch means a significant winter storm is possible in the watch area and you should prepare. A Winter Storm Warning means a significant winter storm is occurring or imminent and travel may become dangerous or impossible. A Blizzard Warning is issued when blizzard conditions are expected: strong winds and blowing snow reducing visibility to near zero. When a blizzard warning covers your area, stay off the roads.

Frequently Asked Questions: Snow & Blizzard Radar

Why does snow look lighter than rain on radar?
Snow typically appears in lighter, more muted colors on reflectivity radar because snowflakes reflect less radar energy than liquid raindrops, even when snowfall is heavy. A winter storm can therefore look unimpressive on radar while still producing dangerous amounts of snow.
What is the rain-snow line on a radar map?
The rain-snow line is the boundary where precipitation changes from rain to snow. It often shows as a band of brighter reflectivity where melting snowflakes reflect strongly. Its position decides whether an area gets rain, a wintry mix, or all snow, and it can shift quickly as cold air moves in.
What makes a storm a blizzard?
A blizzard combines heavy or blowing snow with strong winds that reduce visibility to near zero for an extended period. Blowing snow can create whiteout conditions even after snowfall ends, which is why a Blizzard Warning means travel should be avoided entirely.
What is the difference between a Winter Storm Watch and a Warning?
A Winter Storm Watch means a significant winter storm is possible and you should prepare. A Winter Storm Warning means a significant winter storm is occurring or imminent and travel may become dangerous or impossible.

❄️ Winter City Radars

Follow winter storm radar for northern and mountain cities where snow and blizzards hit hardest: