Stage and discharge
Daily rollups and linked forecast values
Observed Forecast
Stage and discharge chart includes 1 observed point and 54 forecast points.
Flood-stage context
Source-published thresholds where available
Action18 ftSource-backed threshold
Minor flood20 ftSource-backed threshold
Moderate flood24 ftSource-backed threshold
Major flood29 ftSource-backed threshold
Forecast
Linked NWS/NWPS values
HGIFF • stage18.1 ftValid Jun 21, 2026 at 7:00 PM CDT
HGIFF • stage17.9 ftValid Jun 22, 2026 at 1:00 AM CDT
HGIFF • stage17.8 ftValid Jun 22, 2026 at 7:00 AM CDT
HGIFF • stage17.8 ftValid Jun 22, 2026 at 1:00 PM CDT
HGIFF • stage17.9 ftValid Jun 22, 2026 at 7:00 PM CDT
HGIFF • stage18.1 ftValid Jun 23, 2026 at 1:00 AM CDT
Observations
flow
204,000 cfs
Observed May 13, 2026 at 7:00 PM CDT
Alerts
Alerts unavailable
Alerts are shown only when the API returns a source-backed match.
Official public sources
Readings and thresholds stay tied to USGS, NOAA/NWS, or source-backed records.
Source freshness
Observed and fetched timestamps are shown separately when the API returns them.
Transparent methodology
Unavailable forecasts, alerts, and thresholds are shown as unavailable states.