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NWS / NWPSSite ID: GTTI4active

NWS / NWPS GTTI4

Mississippi River below Lock and Dam 10 - Guttenberg

Mississippi River • Clayton • IA

Latest public reading3.93 ftObserved Sep 2, 2026 at 10:00 AM CDT
TrendFallingForecast available
Data freshnessStaleBeyond three times the publishing interval. Value shown with its age, never hidden.Observation 914 minutes old
Flood contextNo source flood categoryFetched Timestamp unavailable

Stage and discharge

Observed source readings

Stage and discharge

Daily rollups and linked forecast values

Observed Forecast

Stage and discharge chart includes 10 observed points and 26 forecast points.

Line chart: Observed, Forecast02468102026-05-142026-09-09
Data series

Flood-stage context

Source-published thresholds where available

Action12 ftSource-backed threshold
Minor flood15 ftSource-backed threshold
Moderate flood18 ftSource-backed threshold
Major flood21 ftSource-backed threshold

Forecast

Linked NWS/NWPS values

HTIFF • stage3.9 ftValid Sep 3, 2026 at 7:00 AM CDT
HTIFF • stage3.9 ftValid Sep 3, 2026 at 1:00 PM CDT
status • stage4 ftValid Sep 3, 2026 at 7:00 PM CDT
HTIFF • stage4 ftValid Sep 3, 2026 at 7:00 PM CDT
HTIFF • stage4 ftValid Sep 4, 2026 at 1:00 AM CDT
HTIFF • stage4 ftValid Sep 4, 2026 at 7:00 AM CDT

Observations

stage

3.93 ft

Observed Sep 1, 2026 at 7:00 PM CDT

stage

3.49 ft

Observed Aug 25, 2026 at 7:00 PM CDT

stage

4.75 ft

Observed Aug 16, 2026 at 7:00 PM CDT

stage

4.88 ft

Observed Aug 9, 2026 at 7:00 PM CDT

stage

9.14 ft

Observed Jul 4, 2026 at 7:00 PM CDT

stage

8.15 ft

Observed Jun 16, 2026 at 7:00 PM CDT

stage

5.79 ft

Observed Jun 8, 2026 at 7:00 PM CDT

stage

5.95 ft

Observed May 30, 2026 at 7:00 PM CDT

stage

6.79 ft

Observed May 22, 2026 at 7:00 PM CDT

stage

7.8 ft

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.