San Lorenzo Creek (Alameda) above Hayward

NWS / NWPSSite ID: LRZC1active

NWS / NWPS LRZC1

San Lorenzo Creek (Alameda) • Alameda • CA

Latest public reading2.6 ftObserved Sep 3, 2026 at 6:20 AM CDT

TrendNo clear trendForecast available

Data freshnessStaleBeyond three times the publishing interval. Value shown with its age, never hidden.Observation 211 minutes old

Flood contextNo source flood categoryFetched Timestamp unavailable

Stage and discharge

Observed source readings

Hourly readings and linked forecast values

Observed Forecast

Source-published thresholds where available

Action20.85 ftSource-backed threshold

Minor flood24.64 ftSource-backed threshold

Moderate flood29.64 ftSource-backed threshold

Major flood33 ftSource-backed threshold

Linked NWS/NWPS values

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 10:00 AM CDT

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 11:00 AM CDT

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 12:00 PM CDT

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 1:00 PM CDT

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 2:00 PM CDT

HGIFZ • stage2.59 ftValid Sep 3, 2026 at 3:00 PM CDT

Stage

2.6 ft

Observed Sep 3, 2026 at 6:20 AM CDT

Stage

2.6 ft

Observed Aug 30, 2026 at 3:35 AM CDT

Alerts are shown only when the API returns a source-backed match.

Readings and thresholds stay tied to USGS, NOAA/NWS, or source-backed records.

Observed and fetched timestamps are shown separately when the API returns them.

Unavailable forecasts, alerts, and thresholds are shown as unavailable states.