MetAlerts - Weather alerts from the Norwegian Meteorological Institute


Delivers weather alerts in CAP format plus an RSS 2.0 feed of such



Unless the cap parameter is given, we return an RSS 2.0 feed of alerts


Retrieve CAP XML message with given guid (Note: From 1.0 this is the CAP identifier, not a date!)


Output language, currently "no" or "en" for Norwegian and English, respectively


Filter by CAP eventType (experimental)


Alerts to be listed, either "all" to include expired/updated alerts, or nothing to list only current


Filter by Norwegian county number where available (only land areas, not gale warnings etc). The county number is defined as always having 2 digits, so the counties Østfold to Aust-Agder must be zero prefixed. Currently one single county allowed per request.

Note that the list of counties is undergoing several changes in the period 2018-2020. For an updated list, please see the list from Kartverket.

lat, lon

Coordinates for geographical search (returns all alerts covered by the search location)

Note: This feature is experimental, and may be changed without prior notice!

Example requests: (show alerts for Agder county) (non-functional example - check RSS feed above for working URLs)


To check if any files that should be available are missing, please use .

Change log


Support for filter on incidentName


Support for search by county number (for warnings issued after 2018-03-15)


Experimental support for search by coordinates

1.1, 2017-05-20

New version of CAP format (1.0). MetAlerts 1.0 will expire 2017-12-01

1.0, 2016-09-01

More search parameters, improved stability

0.2, 2016-04-20

Format officially changed to RSS 2.0

RSS now validates, using RFC-822 date format and no duplicate items

0.1, 2016-03-02

Renamed to MetAlerts. Format claimed to be Atom, but is in fact RSS 2.0 (invalid)

0.1, 2016-01-19

New product for testing


Hey! The above document had some coding errors, which are explained below:

Around line 36:

Non-ASCII character seen before =encoding in 'Østfold'. Assuming UTF-8