nwm/srf_18hr_rapid_onset_flooding (FeatureServer)

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Service Description: Depicts forecast rapid onset flooding using the short-range configuration of the National Water Model (NWM) over the contiguous U.S. Shown are reaches (stream order 4 and below) with a forecast flow increase of 100% or greater within an hour, and which are expected to be at or above the high water threshold within 6 hours of that increase. Also shown are USGS HUC10 polygons symbolized by the percentage of NWM waterway length (within each HUC10) that is expected to meet the previously mentioned criteria. High water thresholds (regionally varied) 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

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Has Versioned Data: false

MaxRecordCount: 2000

Supported Query Formats: JSON

Supports Query Data Elements: false

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Description: Depicts forecast rapid onset flooding using the short-range configuration of the National Water Model (NWM) over the contiguous U.S. Shown are reaches (stream order 4 and below) with a forecast flow increase of 100% or greater within an hour, and which are expected to be at or above the high water threshold within 6 hours of that increase. Also shown are USGS HUC10 polygons symbolized by the percentage of NWM waterway length (within each HUC10) that is expected to meet the previously mentioned criteria. High water thresholds (regionally varied) 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: c30030f486ed481f97e9a8dddf013f62

Copyright Text: National Water Model, NOAA/NWS National Water Center

Spatial Reference: 102100 (3857) LatestVCSWkid(0)

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Full Extent:

Units: esriMeters

Document Info:

Enable Z Defaults: false

Supports ApplyEdits With Global Ids: false

Support True Curves : true

Only Allow TrueCurve Updates By TrueCurveClients : true

Supports Return Service Edits Option : true

Supports Dynamic Layers: false

Child Resources: Info Query Data Elements Relationships SharedTemplates

Supported Operations: Query Query Contingent Values QueryDomains Append Extract Changes Get Estimates