![]() If the radar animation of the last hours shows local thunderstorms or precipitation cells forming and disappearing in an irregular manner, then the forecast is not vey accurate. Modern weather radars are mostly doppler radars, capable of detecting the motion of rain droplets in addition to intensity of the precipitation. The forecast works very well when weather fronts or large organized precipitation structures are moving regularly, without disappearing or being created. Real weather is more complex than just the displacement of existing precipitation cells. You may bookmark the URL to return later to the same view with the selected. The URL will automatically update as you select the view and settings. Longer forecasts are not possible, as new precipitation cells are developing or existing ones are disappearing within a short time. This view is similar to a radar application on a phone that provides radar, current weather, alerts and the forecast for a location. This so called precipitation nowcast is the most accurate precipitation forecast possible but the forecast horizon is limited to about an hour. Site Map: News: Organization : Search NWS All NOAA : Local forecast by 'City, St' Sign-up for Email Alerts RSS Feeds Warnings Current By State/County. : National Oceanic and Atmospheric Administrations : National Weather Service. The rain/snow forecast is computed by estimating the movement of precipitation cells observed by radar and extrapolating this movement into the future. Latest weather radar images from the National Weather Service. United States: How accurate is the radar based forecast? See the latest United States Doppler radar weather map including areas of rain, snow and ice. Moreover, some countries do not operate a weather radar network, and in those countries satellite data is used to estimate rainfall, which is less accurate than a realtime weather radar. ![]() Note that lightning is not shown on the forecast, as it cannot be predicted. Light blue indicates drizzle, blue a medium intensity, and red and yellow indicate very strong precipitation, usually associated with thunderstorms.Ĭurrent lightning strikes are marked with small orange dots on the map (Europe only). The different colours indicate the intensity of rainfall or snowfall. The radar map is updated every 5 minutes with a new radar observation. Follow along with us on the latest weather were watching, the threats it may bring and check out the extended forecast each day to be prepared. See the latest Rhode Island Doppler radar weather map including areas of rain, snow and ice. The weather radar ( United States) shows where it is currently raining or snowing. ![]()
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