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NWS / NWPSSite ID: GNSA1active

NWS / NWPS GNSA1

Tombigbee River at Gainesville Lock and Dam

Tombigbee River • Greene • AL

Latest public reading74.84 ftObserved May 14, 2026 at 1:00 PM CDT
TrendFallingForecast available
Data freshness StaleObservation 222 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 19 forecast points.

Line chart: Observed, Forecast0204060801002026-06-162026-06-232026-06-242026-06-262026-06-26
Data series

Flood-stage context

Source-published thresholds where available

Action101 ftSource-backed threshold
Minor flood101 ftSource-backed threshold
Moderate flood110 ftSource-backed threshold
Major flood118 ftSource-backed threshold

Forecast

Linked NWS/NWPS values

HTIFF • stage79.1 ftValid Jun 21, 2026 at 7:00 PM CDT
HTIFF • stage78.4 ftValid Jun 22, 2026 at 1:00 AM CDT
HTIFF • stage77.7 ftValid Jun 22, 2026 at 7:00 AM CDT
HTIFF • stage77 ftValid Jun 22, 2026 at 1:00 PM CDT
HTIFF • stage75.8 ftValid Jun 22, 2026 at 7:00 PM CDT
HTIFF • stage75.4 ftValid Jun 23, 2026 at 1:00 AM CDT

Observations

stage

80.62 ft

Observed Jun 20, 2026 at 7:00 PM CDT

stage

76.73 ft

Observed Jun 15, 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.