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NOAA NWPS (River & Flood)

No authnoaa-nwps

NOAA National Water Prediction Service — official NWS river-stage observations & forecasts, flood-category thresholds, and National Water Model streamflow. Assess flood risk to pads, pipelines, crossings and facilities, and model water availability with map-ready gauge metadata. No auth.

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Provenance

PublisherNOAA NWPS (River & Flood)
API basehttps://api.water.noaa.gov/nwps/v1

Freshness & coverage

FreshnessFreshness not declared
GeographicNot declared
TemporalNot declared
AuthenticationNo credentials required

Methods (6)

  • searchGaugesByBbox

    read

    River gauges within a bounding box

    Requires xmin/ymin/xmax/ymax; srid defaults to 4326 and is required upstream.

  • getGauge

    read

    Full gauge metadata + flood thresholds by NWS LID

    Args: identifier (5-char NWS LID).

  • getGaugeStageFlow

    read

    Observed + forecast stage/flow time series for a gauge

    Args: identifier.

  • getGaugeRatings

    read

    Stage/discharge rating curve for a gauge

    Args: identifier.

  • getReachStreamflow

    read

    National Water Model streamflow forecast for a reach

    reachId required; series supports short, medium, long, blend, or assimilation.

  • getServiceInfo

    read

    Static API overview — srid=4326 bbox requirement, LID vs reachId, flood-risk value