Nowcast - Immediate weather forecast for specified locations in the Nordic area
This service delivers two-hour weather forecasts in JSON or XML for locations in Norway, Sweden, Finland and Denmark. Forecasts are updated every 5 minutes. It is our best estimate of the current weather conditions.
This forecast is dependent on functional radar coverage of the requested locations. In some places this is not accessible due to topography or range. Radars might also be temporarily out of production due to technical issues; in such cases no precipitation forecast can be issued.
Due to changes in radar coverage we currently do not support downloading of shapefiles describing the area of radar coverage. Only the MEPS area shapefile is available for download.
The JSON version will delived temperature forecasts for the whole MEPS area irrespective of whether radar coverage.
Please check the
RadarCoverage parameter in the JSON output for one of the following conditions:
Location is in radar coverage and the forecast is produced as normal
- temporarily unavailable
The radar is on the blink, no forecast can be issued
- no coverage
The location is outside radar range or blocked by geographical features
Note that this is different from Nowcast version 0.9,
which returned a
422 Unprocessable Entity HTTP status code for locations outside radar range.
For requests outside operational radar coverage, the classic version will deliver an "empty XML" document, i.e. one containing only the top level element (as in 0.9). For locations outside MEPS (Nordic area), a 404 will be returned.
Along with the new JSON format we also have a new set of weather icons, in PNG, SVG and PDF formats. They can be downloaded as a gzipped TAR archive using the WeatherIcon 2.0 service.
The filename (minus extension) corresponds to the
symbol_code in the JSON format,
including variations for day,
night and polar day.
This means there is no need for calculations or fetching data from the Sunrise service in order to present the correct weather icons.
Note: There is a typing error in
lightssnowshowersandthunder (extra "s" after "light").
correcting this would mean breaking existing applications,
so it has been postponed to the next version of weathericon/locationforecast.
Wind direction denote where the wind is coming from, where 0° is north, 90° east, etc. For GUI applications use we suggest using arrows, like these:
latitude in decimal degrees, mandatory
longtitude in decimal degrees, mandatory
whole meters above sea level (integers), optional but recommended for precise values.
- Bergen (XML)
Operational status for this product can be checked at
XML Schema for classic XML can be found here:
The JSON schema is included in the OpenAPI (Swagger) feed:
Due to poor adherence to the identification requirements in the Terms of Service, we have implemented more stringent checks on sending a unique identifier in the User-Agent header. Any requests with a prohibited or missing User-Agent will receive a 403 Forbidden error.
Examples of banned User-Agents include:
2.0 out of beta, added classic.xml output. Version 0.9 will be removed 1 March 2021
We have replaced the old production backend for version 0.9 with the new one as used by beta version 2.0. This will incur some trivial changes, but is not expected to cause any compatibility problems for well-behaved clients:
Model@nameattributes will be updated to reflect the new production
@altitudeattribute will be added to the location element (same as for Locationforecast)
- The number of decimals in latitude/longitude is no longer fixed
New version using JSON and FORTI in development.
Added coverage method
New schema, now returns empty XML when no radar data available