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outlooks/spc_mesoscale_discussion (MapServer)

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View Footprint In:   ArcGIS Online Map Viewer

Service Description:

The Storm Prediction Center (SPC) issues Mesoscale Discussions (MDs or MCDs) that focus on severe thunderstorm potential over the continental U.S. for the next 6 hours with an emphasis on the first 1-3 hours. SPC also issues MDs for mesoscale aspects of hazardous winter weather events including heavy snow, blizzards, and freezing rain. All MDs contain an areas affected line, concerning line, valid time, a paragraph for a summary, and a paragraph for a technical discussion, along with a graphical depiction of the highlighted area.

Link to graphical web page:

Link to data download (shapefile):

Questions/Concerns about the service, please contact the DISS GIS team

Time Information:

This service is not time enabled

Map Name: SPC Mesoscale Discussion


All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers: Description:

Copyright Text: NOAA/NWS/SPC

Spatial Reference: 4326  (4326)  VCSWkid(5773)  LatestVCSWkid(5773)

Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriDecimalDegrees


Document Info: Supports Dynamic Layers: true

Resampling: false

MaxRecordCount: 2000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true

Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryLegends   QueryDomains   Find   Return Updates   Generate KML