Data source · NOAA National Weather Service

National Water Prediction Service API

Public operational API for NWPS hydrologic products. A buyer can list gauges by bounding box or retrieve a gauge by NWS LID or USGS ID. Gauge responses include location metadata, observed stage/flow status with units, v…

FreeAPINationalUnited States

What it answers ↓

1Questions answered

3Fields delivered

1Country

Questions this answers

1 · best fit first

QuestionStrong fit

River stage and discharge during the event

The public NWPS API lets a buyer list gauges by bounding box or select a gauge by NWS LID or USGS ID and returns observed stage and flow time-series values with units and valid times. Gauge responses also expose coordinates, observed flood category, and configured action, minor, moderate, and major thresholds; only the observed series is asserted here. Forecast values are excluded, and gauge category or threshold status is point context rather than inundation extent, parcel depth, or proof away from the gauge.

Fields it delivers

3 fields

Latitude Longitude River flood category

CoverageNational

NWPS is NOAA’s national U.S. water-prediction and gauge API. This US code does not imply separately coded territories.

Access & termsFree

The publisher provides the cited public API, download, lookup, or report directly, with no subscription, order form, or per-use payment required. An ordinary eligible business buyer can therefore use the standing route free of monetary cost, subject to any linked terms.

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