Stage and discharge
Daily rollups and linked forecast values
Observed Forecast
Stage and discharge chart includes 2 observed points and 60 forecast points.
Flood-stage context
Source-published thresholds where available
Action19 ftSource-backed threshold
Minor flood21 ftSource-backed threshold
Moderate flood26 ftSource-backed threshold
Major flood33 ftSource-backed threshold
Forecast
Linked NWS/NWPS values
HGIFF • stage4.2 ftValid Sep 10, 2026 at 1:00 PM CDT
HGIFF • stage4.5 ftValid Sep 10, 2026 at 7:00 PM CDT
HGIFF • stage4.7 ftValid Sep 11, 2026 at 1:00 AM CDT
HGIFF • stage4.8 ftValid Sep 11, 2026 at 7:00 AM CDT
HGIFF • stage4.8 ftValid Sep 11, 2026 at 1:00 PM CDT
HGIFF • stage4.7 ftValid Sep 11, 2026 at 7:00 PM CDT
Observations
stage
3.77 ft
Observed Sep 9, 2026 at 7:00 PM CDT
stage
4.42 ft
Observed Sep 2, 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.