NWS HEFS
Provides probabilistic streamflow forecasts and hydrograph quantiles from the National Weather Service's Hydrologic Ensemble Forecast Service.
Custom Streaming + One-shot
Fetches Hydrologic Ensemble Forecast Service (HEFS) probabilistic streamflow data (hydrograph quantiles).
What you can ask Delphi
- “What are the HEFS 50% exceedance streamflow probabilities for the Ohio River near Cincinnati for the next seven days?”
- “Show me the 10th and 90th percentile streamflow forecasts for the Sacramento River near Verona for the next 30 days.”
- “Can you create a daily report showing the 75th percentile streamflow forecast for the Missouri River at Boonville, flagging values above 50,000 cfs?”
- “What are the forecasted streamflow quantiles for the Trinity River at Dallas over the next two weeks, specifically the 25th, 50th, and 75th percentiles?”
Technical details
Authentication ▾
Contact us for setup details.
Ingestion ▾
Mode: Streaming + One-shot
Tools exposed (2) ▾
nws/get_hefs_data
Fetches Hydrologic Ensemble Forecast Service (HEFS) probabilistic streamflow data (hydrograph quantiles).
schedule_hefs_data
Create or update a recurring HEFS probabilistic streamflow feed. Useful for tracking flood risks or water supply metrics over time. Same arguments as nws/get_hefs_data.
Inputs ▾
nws/get_hefs_data
| Name | Type | Required | Description |
|---|---|---|---|
| dashboardId | string | no | Target dashboard/initiative ID. Omit to use the current dashboard. |
| location | string | yes | Location ID (e.g., "TUSL1", "HOPC1"). |
| parameter_id | string | no | Parameter ID. Common: "QINE" (inflow), "SQIN" (stage). Default: "QINE". |
| forecast_type | string | no | Forecast type filter (e.g., "ensemble", "deterministic"). |
| issuance_time_start | string | no | Start of issuance time range (ISO 8601). Filters forecasts issued after this time. |
| issuance_time_end | string | no | End of issuance time range (ISO 8601). Filters forecasts issued before this time. |
| filter_paths | string[] | no | Optional: Glob patterns to filter output and reduce context usage. |
schedule_hefs_data
| Name | Type | Required | Description |
|---|---|---|---|
| dashboardId | string | no | Target dashboard/initiative ID. Omit to use the current dashboard. |
| location | string | yes | Location ID (e.g., "TUSL1", "HOPC1"). |
| parameter_id | string | no | Parameter ID. Common: "QINE" (inflow), "SQIN" (stage). Default: "QINE". |
| forecast_type | string | no | Forecast type filter (e.g., "ensemble", "deterministic"). |
| issuance_time_start | string | no | Start of issuance time range (ISO 8601). Filters forecasts issued after this time. |
| issuance_time_end | string | no | End of issuance time range (ISO 8601). Filters forecasts issued before this time. |
| filter_paths | string[] | no | Optional: Glob patterns to filter output and reduce context usage. |
| polling_frequency | string | yes | How often to check for new data (e.g. '15m', '1h'). |
| description | string | no | Human-readable description of what this connector monitors. Shown to analysts in future sessions. |
| connectorId | string | no | If provided, updates the existing connector instead of creating a new one. |