NOAA/NOS/CO-OPS
Chesapeake Bay North PORTS®, NOAA/NOS
2025-07-12 04:59 EDT
Data Types
Water Levels
Winds
Air/Water Temp
Relative Humidity
Barometric Pressure
Visibility
Salinity/Specific Gravity
Air Gap/Bridge Clearance
Currents
Water Levels (above MLLW)
Windmill Point 1.3 ft Falling
Lewisetta 2.2 ft Falling
Dahlgren 2.8 ft Rising
Washington D.C. 0.8 ft Falling
Solomons Island 2.2 ft Steady
Annapolis 1.9 ft Rising
Baltimore 1.5 ft Rising
Chesapeake City 1.2 ft Falling
Tolchester Beach 1.3 ft Rising
Reedy Point 2.7 ft Falling
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Winds
Name Wind from Gusts to
Lewisetta 1 kn S 2
Dahlgren 2 kn SW 2
Rapp. Lt Front Range 3 kn ESE 4
Washington D.C. 2 kn ESE 3
Piney Point 3 kn SE 3
Solomons Island 0 kn NNE 0
Cove Point LNG Pier 2 kn SE 2
Annapolis 1 kn SE 2
Francis Scott Key B.. 3 kn SSE 4
Baltimore 4 kn ENE 5
Chesapeake City 3 kn ENE 4
Tolchester Beach 5 kn ESE 7
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Air/Water Temp
Name Air Temp Water Temp
Lewisetta 79 °F 85 °F
Dahlgren 79 °F 86 °F
Washington D.C. 79 °F 86 °F
Solomons Island 79 °F 83 °F
Cove Point LNG Pier 79 °F  
Annapolis 80 °F 84 °F
Chesapeake Bay Br 79 °F  
Francis Scott Key B.. 80 °F  
Baltimore 80 °F 85 °F
Chesapeake City 75 °F 84 °F
Tolchester Beach 74 °F 84 °F
Reedy Point 75 °F 83 °F
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Relative Humidity
Chesapeake Bay Br 100%
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Barometric Pressure
Lewisetta 1016 mb Falling
Dahlgren 1016 mb Falling
Rapp. Lt Front Range 1017 mb Falling
Washington D.C. 1017 mb Falling
Solomons Island 1016 mb Falling
Cove Point LNG Pier 1017 mb Falling
Annapolis 1016 mb Rising
Francis Scott Key B.. 1017 mb Rising
Chesapeake City 1018 mb Falling
Tolchester Beach 1017 mb Rising
Reedy Point 1017 mb Falling
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Visibility
Chesapeake Bay Br 5.40 nm
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Salinity/Specific Gravity
Station Salin. S.G.
Lewisetta 6.6 psu 1.002
Chesapeake City 0.4 psu 0.997
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Air Gap/Bridge Clearance (above water)
WPL Br: Center Ch 184.0 ft Decr.
WPL Br: 170ft E of .. 185.9 ft Stdy.
Ches. City Bridge 141.5 ft Incr.
Reedy Point Bridge 138.8 ft Incr.
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Currents (F)lood, (S)lack, (E)bb, towards °T
StationSpdDir
Reedy Point (pred) 1.9 kn E166.0
Chesapeake City Cur.. 1.5 kn E270.0
Brewerton Ch, LB 2BE 0.2 kn S310.0
Chesapeake Ch, LB 91 0.7 kn F35.0
Cove Point LNG Pier.. 1.0 kn F327.0
Rapp. Shl Ch LB 60 0.2 kn S301.0
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**** Data not displayed as a result of missing data or quality control monitoring. For more information, go to https://corms.nos.noaa.gov/instrument_status.html, or call CORMS at 301-713-2540.
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