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River Heights

Last Updated: Tuesday September 22nd, 2026 02:01 AM EDT

Stage Color Key
No Flooding Near Flood Minor Flooding Mod Flooding Major Flooding Obs > 24hrs
Flood category not defined At/Below low water threshold Out of Service
Marker Key
Forecast Available Forecast Available Probability and Forecast Available Probability & Forecast Available Observations only Available Observations Only

Location HeightTrendForecastStatus
Patapsco River at Liberty Reservoir (MFEM2) 411.45ft No change in last hour Not Defined
Patapsco River at Woodstock (WOOM2) 235.94ft No change in last hour Not Defined
Patapsco River at Hollofield (PRHM2) 1.62ft No change in last hour  Normal
Patapsco River at Ellicott City (ELPM2) 113.97ft No change in last hour  Normal
Patapsco River near Catonsville (CTSM2) 10.43ft No change in last hour  Normal
Patapsco River near Elkridge at Patapsco State Park (ERDM2) 5.64ft No change in last hour  Normal
Patapsco River near Elkridge below Patapsco State Park (ELKM2) 7.93ft No change in last hour  Normal
NW Branch Patapsco River at Ft McHenry (BLTM2) 2.11ft No change in last hourNo change forecasted in next hour Normal
East Branch Herbert Run at Arbutus (EBHM2) 0.99ft No change in last hourNo change forecasted in next hour Normal
Maiden Choice Run at Wilkens Ave (MCRM2) 0.95ft No change in last hourNo change forecasted in next hourNot Defined
Gwynns Falls at Washington Blvd (WBGM2) 2.79ft No change in last hourNo change forecasted in next hour Normal
Susquehanna River at Conowingo (CNWM2) 11.52ft No change in last hourNo change forecasted in next hour Normal
Chesapeake Bay at Havre de Grace (HDGM2) 0.96ft No change in last hourNo change forecasted in next hour Normal
Chesapeake Bay at Tallchester Beach (TCBM2) 1.91ft No change in last hourNo change forecasted in next hour Normal
Severn River at Annapolis (APAM2) 2.24ft No change in last hourNo change forecasted in next hour Near Flood Stage
Little Patuxent River at Guilford Rd (LPGM2) 2.28ft No change in last hourNo change forecasted in next hour Normal
Little Patuxent River at Savage (SAVM2) 2.99ft No change in last hourNo change forecasted in next hour Normal
Patuxent River at Brighton Dam (BGHM2) 1.79ft No change in last hourNo change forecasted in next hour Normal
Patuxent River at Duckett Dam (LPRM2) 4.35ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 1 - Big Sioux River, SD (WBWS2) 5.17ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 2 - Terre Haute, IN (TERI3) 9.61ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 3 - Sabine River,TX (DWYT2) 16.39ft No change in last hourNo change forecasted in next hour Normal

Data Courtesy of the National Water Prediction Service
Script Courtesy of Dennis at East Masonville Weather with mods by Saratoga-weather.org