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Service Description: Depicts the magnitude of the peak National Water Model (NWM) streamflow forecast over the next 18 hours where the NWM is signaling high water. This service is derived from the short-range configuration of the NWM over the contiguous U.S. Shown are reaches with peak flow at or above high water thresholds. Reaches are colored by the annual exceedance probability (AEP) of their forecast peak 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 Short-Range Max High Flow Magnitude Forecast
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Description: Depicts the magnitude of the peak National Water Model (NWM) streamflow forecast over the next 18 hours where the NWM is signaling high water. This service is derived from the short-range configuration of the NWM over the contiguous U.S. Shown are reaches with peak flow at or above high water thresholds. Reaches are colored by the annual exceedance probability (AEP) of their forecast peak 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: 4e8bd2166dbc461186f2d9bcbeae2aea
Copyright Text: National Water Model, NOAA/NWS National Water Center
Spatial Reference:
102100
(3857)
LatestVCSWkid(0)
Single Fused Map Cache: false
Initial Extent:
XMin: -1.4083726418013308E7
YMin: 2928713.2784634354
XMax: -7101947.50088669
YMax: 6849546.843136563
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,srf,short,range,conus
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
Resampling: false
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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