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Service Description: Depicts the magnitude of the National Water Model (NWM) streamflow forecast where the NWM is signaling high water. This service is derived from the analysis and assimilation configuration of the NWM over Contiguous U.S. Shown are reaches with flow at or above high water thresholds. Reaches are colored by the annual exceedance probability (AEP) of their current flow. High water thresholds (regionally varied) and AEPs were derived using the 40-year NWM v3.0 reanalysis simulation. Updated hourly.
Link to graphical web page: https://www.weather.gov/owp/operations
Link to documentation: https://www.weather.gov/media/owp/operations/Public_Handbook_V2.3_%20NWC_Visualization_Services.pdf
For feedback or questions please email nwps.webmaster@noaa.gov
Map Name: NWM High Flow Magnitude Analysis
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Description: Depicts the magnitude of the National Water Model (NWM) streamflow forecast where the NWM is signaling high water. This service is derived from the analysis and assimilation configuration of the NWM over Contiguous U.S. Shown are reaches with flow at or above high water thresholds. Reaches are colored by the annual exceedance probability (AEP) of their current flow. High water thresholds (regionally varied) and AEPs were derived using the 40-year NWM v3.0 reanalysis simulation. Updated hourly.
Link to graphical web page: https://www.weather.gov/owp/operations
Link to documentation: https://www.weather.gov/media/owp/operations/Public_Handbook_V2.3_%20NWC_Visualization_Services.pdf
For feedback or questions please email nwps.webmaster@noaa.gov
Service Item Id: 3a9adb19fb1c4846bd7b48f8a8d78dc4
Copyright Text: National Water Model, NOAA/NWS National Water Center
Spatial Reference:
102100
(3857)
LatestVCSWkid(0)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.2310066888115939E7
YMin: 3050861.661762476
XMax: -1.0190432232864425E7
YMax: 4531724.241904207
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Full Extent:
XMin: -1.5224159214216806E7
YMin: 2159597.880736096
XMax: -6228307.888008264
YMax: 7211496.010788572
Spatial Reference: 102100
(3857)
LatestVCSWkid(0)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
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Title: Map
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Keywords: high flow,magnitude,national water model,nwm,ana,conus
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 2000
MaxSelectionCount: 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
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