Navigation

Alerts

Anne Arundel Co.
 Details for Anne Arundel Co. Freeze Warning
 Carroll Co.
 Details for Carroll Co. Freeze Warning  +2 additional alerts
 Harford Co.
 Details for Harford Co. Freeze Warning  +1 additional alert
 Howard Co.
 Details for Howard Co. Freeze Warning  +1 additional alert
 Montgomery Co.
 Details for Montgomery Co. Freeze Warning  +1 additional alert
 Prince Georges Co.
 Details for Prince Georges Co. Freeze Warning
 Northern Baltimore Co.
 Details for Northern Baltimore Co. Freeze Warning  +1 additional alert
 Southern Baltimore Co. & City
 Details for Southern Baltimore Co. & City Freeze Warning  +1 additional alert
 Frederick Co.
 Details for Frederick Co. Freeze Warning

pwsWD Template

Meteotemplate

Fresh WDL

Simple WDL




Style Options





River Heights

Last Updated: Monday April 20th, 2026 02:01 PM 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) 416.21ft No change in last hour Not Defined
Patapsco River at Woodstock (WOOM2) 236.24ft 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) 114.23ft No change in last hour  Normal
Patapsco River near Catonsville (CTSM2) 10.65ft No change in last hour  Normal
Patapsco River near Elkridge at Patapsco State Park (ERDM2) 5.60ft No change in last hour  Normal
Patapsco River near Elkridge below Patapsco State Park (ELKM2) 8.01ft No change in last hour  Normal
NW Branch Patapsco River at Ft McHenry (BLTM2) 1.63ft No change in last hourNo change forecasted in next hour Normal
East Branch Herbert Run at Arbutus (EBHM2) 0.87ft No change in last hourNo change forecasted in next hour Normal
Maiden Choice Run at Wilkens Ave (MCRM2) N/Aft   Old Data
Gwynns Falls at Washington Blvd (WBGM2) 2.49ft No change in last hourNo change forecasted in next hour Normal
Susquehanna River at Conowingo (CNWM2) 10.79ft No change in last hourNo change forecasted in next hour Normal
Chesapeake Bay at Havre de Grace (HDGM2) 3.12ft No change in last hourNo change forecasted in next hour Normal
Chesapeake Bay at Tallchester Beach (TCBM2) 1.79ft No change in last hourNo change forecasted in next hour Normal
Severn River at Annapolis (APAM2) 1.20ft No change in last hourNo change forecasted in next hour Normal
Little Patuxent River at Guilford Rd (LPGM2) 1.90ft No change in last hourNo change forecasted in next hour Normal
Little Patuxent River at Savage (SAVM2) 3.15ft No change in last hourNo change forecasted in next hour Normal
Patuxent River at Brighton Dam (BGHM2) 1.49ft No change in last hourNo change forecasted in next hour Normal
Patuxent River at Duckett Dam (LPRM2) 4.31ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 1 - Big Sioux River, SD (WBWS2) 6.10ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 2 - James River, SD (SFDS2) 11.82ft No change in last hourNo change forecasted in next hour Normal
Flood Test Location 3 - Sabine River,TX (DWYT2) 14.47ft 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