Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left Home News Organization
Bookmark and Share Navigation Bar End Cap

  

National Conditions
    Rivers
    Satellite
    Climate
    Observed Precip

Local Conditions
    Warnings
    Weather Forecast
    Radar

AHPS Documentation
    User Guide
    User Brochure

What is AHPS?
    Facts
    Our Partners

Feedback/Questions
    Provide Feedback
    Ask Questions

When flooded turn around don't drown
FloodSmart
USA.gov Official Web Portal
 

Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.



Hydrograph River at a Glance Download
Southwest Branch near Largo / Harry S Truman Dr Stage (ft)Observed: 0.5 ft at 3:10PM Sep 29, 2023Highest Observation: 0.58 ft at 6:15PM Sep 29, 2023Observed: 0.54 ft at 3:10AM Sep 30, 2023Observed: 0.46 ft at 12:45PM Sep 30, 2023Observed: 0.54 ft at 1:15PM Sep 30, 2023Observed: 0.46 ft at 1:50PM Sep 30, 2023Observed: 0.46 ft at 3:10PM Sep 30, 2023Observed: 0.54 ft at 8:15PM Sep 30, 2023Observed: 0.54 ft at 3:10AM Oct 01, 2023Observed: 0.46 ft at 9:35AM Oct 01, 2023Observed: 0.54 ft at 10:25AM Oct 01, 2023Observed: 0.42 ft at 10:35AM Oct 01, 2023Observed: 0.5 ft at 12:15PM Oct 01, 2023Observed: 0.54 ft at 3:10PM Oct 01, 2023Observed: 0.5 ft at 3:10AM Oct 02, 2023Observed: 0.42 ft at 10:00AM Oct 02, 2023Observed: 0.5 ft at 10:55AM Oct 02, 2023Observed: 0.54 ft at 11:15AM Oct 02, 2023Observed: 0.42 ft at 11:25AM Oct 02, 2023Observed: 0.46 ft at 11:40AM Oct 02, 2023Observed: 0.38 ft at 1:35PM Oct 02, 2023Observed: 0.46 ft at 2:15PM Oct 02, 2023Observed: 0.42 ft at 3:10PM Oct 02, 2023Observed: 0.5 ft at 5:15PM Oct 02, 2023Highest Observation: 0.58 ft at 8:30PM Oct 02, 2023Observed: 0.5 ft at 9:05PM Oct 02, 2023Highest Observation: 0.58 ft at 10:15PM Oct 02, 2023Highest Observation: 0.58 ft at 12:05AM Oct 03, 2023Observed: 0.5 ft at 12:55AM Oct 03, 2023Highest Observation: 0.58 ft at 1:45AM Oct 03, 2023Observed: 0.5 ft at 2:45AM Oct 03, 2023Observed: 0.5 ft at 3:10AM Oct 03, 2023Highest Observation: 0.58 ft at 6:10AM Oct 03, 2023Observed: 0.5 ft at 6:55AM Oct 03, 2023Observed: 0.42 ft at 9:45AM Oct 03, 2023Observed: 0.46 ft at 10:35AM Oct 03, 2023Observed: 0.38 ft at 11:05AM Oct 03, 2023Observed: 0.42 ft at 3:10PM Oct 03, 2023Observed: 0.5 ft at 6:15PM Oct 03, 2023Highest Observation: 0.58 ft at 7:25PM Oct 03, 2023Observed: 0.5 ft at 7:40PM Oct 03, 2023Observed: 0.5 ft at 12:10AM Oct 04, 2023HTNM2(plotting HGIRR) Graph Created (3:11AM Oct 4, 2023)ObservedLatest observed value: 0.5 ft at 12:10 AM EDT 4-Oct-2023. Flood Stage is 11 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts are not available for the Southwest Branch near Largo / Harry S Truman Dr. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 0
Moderate Flood Stage: 13
Flood Stage: 11
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
Currently none available.

Recent Crests
Currently none available.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
About This Location Collapse

Latitude: 38.876111° N, Longitude: 76.826667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 ft  
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available  
NGVD 29 Not Available Not Available  
MSL Not Available Not Available  
Other Not Available Not Available  
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
(Baltimore/Washington) Sterling Weather Forecast Office
43858 Weather Service Rd.
Sterling, VA 20166
(571) 888-3500
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:30 PM 		Disclaimer
Credits
Glossary 		Privacy Policy
About Us
Career Opportunities