National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service



HUASNA RIVER - ARROYO GRANDE (HSAC1)
Latitude: 35.08º NLongitude: 120.37º WElevation: 1000 Feet
Location: San Luis Obispo County in CaliforniaBulletin Group: Southern CaliforniaRiver Group: Southern California
Issuance Time: May 19, 2026 at 8:47 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.
Threshold Exceedance Plot                  Product Information        CSV Ensemble Files (Data in kcfs):  Forecast Group  |  HSAC1

Show:





What information is considered in this forecast?
Verification / Historical Plots
<-- Previous Forecast  Forecast Date:   Forecast Cycle:  

Location Photographs

ESRI™ Locator Map