SIGMET Request

You only need to specify this style URL in your client and it will automatically know what other URLs it has to request for other resources such as vector tiles and sprites:<optionals>

Optional Fields

Optional fields can be attached to the query string as follows:


The following table describes all optional parameters:

datetimeA date to retrieve the vector data
If no datetime is provided, the system defaults to the time of the request.
Dates and times are specified according to the ISO-86011 format (YYYY-MM-DDThh:mm:ssZ). All times are in UTC. Note that the part containing time specifications (Thh:mm:ss) is optional. The default setting is now. For more details see Date/Time Description 2018-04-12T12:45Z
access_tokenInstead of basic authentication, you can opt to use OAuth authentication as described here: OAuth AuthentificationString.eyJhbGciOicCI6 ... y2QT4fwpMeJ

Visual Representation

Sigmet examples
PolygonRepresents where the SIGMET hazard (phenomenon) is applicable
Hazard TypeAbbreviated name of the hazard (phenomenon) of the given SIGMET

Note: Depending on the zoom level some SIGMET's geometries may be too small to be added to MVT and will be excluded automatically.

Further Relevant SIGMET Informations

Apart from the information represented by the polygon representation above, we also encode other relevant information into the Protobuf file. These can be extracted and projected on your map by using a custom stylesheet. Here is a list of the additionally available fields:

KeyData TypeUnit
fir_idstring -
fir_namestring -
issue_timestring ISO time format string
beginsstring ISO time format string
endsstring ISO time format string
sequence_numberstring -
topstring Feet AGL
basestring Feet AGL
movestring -
speedinteger Knots
changestring -
raw_reportstring -