## US Precipitation Map Get current, forecast and historical US precipitation weather maps with a 10 minutes-step via the easy-to-work API. ## Features of US Precipitation Map 1. Current, forecast and historical weather maps 2. - Forecast US precipitation map for the next 5 hours - Historical weather map for the previous 2 days 3. Update period is every 10 minutes 4. Resolution less than 1 km 5. Coverage: for US only 6. Weather sources US Precipitatoin Map is based on global weather models, satellites, radars and our OWM NWP-ML technology. 7. There is the [OpenWeather Interactive Weather Maps](/weathermap.md?basemap=map&cities=true&layer=radar&lat=56.9510&lon=24.1064&zoom=5) with Global Precipitation layer, which provide users with free access to visual data. ## URL format and parameters Use the following URL format and parameters to get weather maps. Please pay attention to the URL example. ### API call ```text https://maps.openweathermap.org/maps/2.0/radar/us/forecast/{z}/{x}/{y}?appid={API key}&tm={date} ``` | Parameters | | | | --- | --- | --- | | `{z}` | Yes | Number of zoom level The minimum value is **3**, and the maximum value is **7** | | `{x}` | Yes | Number of x tile coordinate | | `{y}` | Yes | Number of y tile coordinate | | `appid` | Yes | Your unique API key (you can always find it on your account page under the ["API key" tab](https://home.openweathermap.org/api_keys)) | | `tm` | Yes | Date and time of (Unix time, UTC), e.g. 1600781192. To get historical or forecast data, please specify the date in your API request. | > Please pay attention to the points bellow to avoid possible errors: > > - Please specify dates in all API requests. > - Please specify dates with 10 minutes steps. For example, 1600780200, 1600780800, 1600781400, etc. > - Please specify dates not earlier than 2 days from the current time and not later than 5 hours from the current time. > - Please specify {x} and {y} for US locations only. ### URL example ```text https://maps.openweathermap.org/maps/2.0/radar/us/forecast/3/1/3?&appid={API key}&tm=1600781400 ``` > You need to insert the generated URL into special plugins. > > For example, Leaflet, OpenLayers. You can also use any other apps that support the display of layers. [Learn more](#library). ## Libraries to connect weather layers ### Open Layers The following functions are available for the OpenLayers library: - Classes of weather layer and weather stations layer - Possibility to set your own style - Classes with clustered markers - Support of marker server clustering ### Leaflet The OpenWeatherMap javascript library is designed to work with the Leaflet mapping service. The current version of the library allows the following: - Embedding of layer with current weather in cities - Embedding of layer with weather stations - The library supports customer clustering