RADAR AND WARNINGS

Live radar and warnings

NOAA radar and active National Weather Service warnings on one map. Pick a spot to see the warnings for it.

Showing the whole U.S. Search a ZIP code to see local warnings.

    Skip past the map to the warnings list
    Latest radar
    Single-radar products use the radar nearest your place.
    Loading the radar map…

    TornadoSevere thunderstormFlash floodExtreme windSnow squall

    Advanced radar app (opens radar.ohhailna.com in a new tab)

    Drag or use the arrow keys to move the map, and + or − to zoom. Radar is NOAA's MRMS base reflectivity mosaic and can lag real conditions by several minutes. When a warning is issued for you, act on it first.

    My places and notifications
    Alert types to show

    Loading the list of National Weather Service alert types…

    Upper-air sounding

    Loading…

    Warnings for your location

    Choose a location above to see its active warnings.

    Source: National Weather Service (api.weather.gov).

    Get free alerts

    How to use it

    • Find your spot. Type a ZIP code or "City, ST", or use your current location.
    • Press Play loop. It shows the last two hours. How a storm is moving tells you more than any single frame.
    • Read the outlines. Red is a tornado warning, orange a severe thunderstorm warning, dark red a flash flood warning. Turn on Watches and advisories to see the rest, shaded by county or zone.
    • Go deeper. Pick a single-radar product such as velocity or correlation coefficient, press Compare to see two at once, or open the sounding.

    What the colors mean

    Radar measures how much energy bounces back off rain, snow and hail (reflectivity, in dBZ). Greens and blues are light rain or snow. Yellows and oranges are moderate to heavy rain. Reds and pinks are very heavy rain and sometimes hail.

    Radar has blind spots. The beam climbs higher the farther it travels, so it can miss what's happening near the ground far from a radar site. Use it to stay aware, not to decide you're safe.

    Watch or warning?

    A watch means conditions are right for severe weather, so stay alert. A warning means it's happening or about to, so take action now. Warnings come from your local National Weather Service office.

    Keep reading

    This page supports personal awareness and does not replace official warnings. Official forecasts and warnings: weather.gov. Radar: NOAA nowCOAST, NOAA/NWS NCEP and NOAA NEXRAD Level 3 data from the NOAA Open Data Dissemination program. Soundings: SPC. Outlooks: Storm Prediction Center. ZIP lookup: Zippopotam.us.