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NWS / NWPSSite ID: ALMW3active

NWS / NWPS ALMW3

Mississippi River below Lock and Dam 4 - Alma

Mississippi River • Buffalo • WI

Latest public reading4.37 ftObserved Jun 17, 2026 at 9:15 AM CDT
TrendFallingForecast available
Data freshness StaleObservation 6002 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 2 observed points and 7 forecast points.

Line chart: Observed, Forecast0102030402026-05-112026-06-222026-06-232026-06-23
Data series

Flood-stage context

Source-published thresholds where available

Action10 ftSource-backed threshold
Minor flood16 ftSource-backed threshold
Moderate flood17 ftSource-backed threshold
Major flood18 ftSource-backed threshold

Forecast

Linked NWS/NWPS values

HTIFF • stage4.3 ftValid Jun 21, 2026 at 7:00 PM CDT
HTIFF • stage4.3 ftValid Jun 22, 2026 at 1:00 AM CDT
HTIFF • stage4.3 ftValid Jun 22, 2026 at 7:00 AM CDT
HTIFF • stage4.3 ftValid Jun 22, 2026 at 1:00 PM CDT
HTIFF • stage4.3 ftValid Jun 22, 2026 at 7:00 PM CDT
HTIFF • stage4.3 ftValid Jun 23, 2026 at 1:00 AM CDT

Observations

flow

33.9 kcfs

Observed May 12, 2026 at 7:00 PM CDT

flow

35.4 kcfs

Observed May 10, 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.