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NWS / NWPSSite ID: porm2active

NWS / NWPS porm2

Potomac River at Point of Rocks

Potomac River • Frederick • MD

Latest public reading2,680 cfsObserved May 14, 2026 at 3:55 PM CDT
TrendRisingForecast available
Data freshness StaleObservation 2090 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 3 observed points and 4 forecast points.

Line chart: Observed, Forecast012345672026-05-302026-06-202026-06-222026-06-22
Data series

Flood-stage context

Source-published thresholds where available

Action11 ftSource-backed threshold
Minor flood16 ftSource-backed threshold
Moderate flood20 ftSource-backed threshold
Major flood27 ftSource-backed threshold

Forecast

Linked NWS/NWPS values

HGIFF • stage1.5 ftValid Jun 21, 2026 at 1:00 PM CDT
HGIFF • stage1.5 ftValid Jun 21, 2026 at 7:00 PM CDT
HGIFF • stage1.5 ftValid Jun 22, 2026 at 1:00 AM CDT
HGIFF • stage1.5 ftValid Jun 22, 2026 at 7:00 AM CDT

Observations

stage

1.46 ft

Observed Jun 19, 2026 at 7:00 PM CDT

stage

2.49 ft

Observed Jun 5, 2026 at 7:00 PM CDT

stage

6.5 ft

Observed May 29, 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.