Chesapeake Bay North PORTS®, NOAA/NOS
2020-02-21 21:40 EST
Data Types
Water Levels
Air/Water Temp
Relative Humidity
Barometric Pressure
Salinity/Specific Gravity
Air Gap/Bridge Clearance
Water Levels (above MLLW)
Reedy Point 4.4 ft Rising
Chesapeake City 2.7 ft Rising
Baltimore 0.4 ft Falling
Tolchester Beach 0.7 ft Falling
Annapolis 0.1 ft Falling
Washington D.C. 1.6 ft Falling
Dahlgren -0.1 ft Rising
Solomons Island 0.2 ft Rising
Lewisetta 0.4 ft Rising
Windmill Point 0.8 ft Steady
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Name Wind from Gusts to
Chesapeake City 0 kn SW 1
Baltimore 3 kn WSW 5
NE Tower 8 kn SW 10
Francis Scott Key B.. 7 kn SW 8
Tolchester Beach 2 kn ESE 3
Washington D.C. 3 kn SSW 4
Cove Point LNG Pier *** kn *** ***
Dahlgren 2 kn W 3
Solomons Island 4 kn SSW 5
Piney Point 0 kn SSE 1
Lewisetta 3 kn SW 3
Rapp. Lt Front Range 8 kn NW 11
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Air/Water Temp
Name Air Temp Water Temp
Reedy Point 28 °F 42 °F
Chesapeake City 27 °F 42 °F
Baltimore 33 °F 43 °F
NE Tower 35 °F  
Francis Scott Key B.. 33 °F  
Tolchester Beach 29 °F 42 °F
Chesapeake Bay Brid.. 36 °F  
Annapolis 33 °F  
Washington D.C. 35 °F 44 °F
Cove Point LNG Pier *** °F  
Dahlgren 31 °F 45 °F
Solomons Island 33 °F 44 °F
Lewisetta 32 °F 42 °F
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Relative Humidity
Chesapeake Bay Brid.. ***%
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Barometric Pressure
Reedy Point 1031 mb Falling
Chesapeake City 1031 mb Falling
Baltimore 1031 mb Falling
NE Tower 1030 mb
Francis Scott Key B.. 1031 mb Falling
Tolchester Beach 1031 mb Falling
Annapolis 1031 mb Falling
Washington D.C. 1032 mb Falling
Cove Point LNG Pier *** mb
Dahlgren 1031 mb Falling
Solomons Island 1032 mb Falling
Lewisetta 1032 mb Rising
Rapp. Lt Front Range 1033 mb Rising
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Chesapeake Bay Brid.. 5.40 nm
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Salinity/Specific Gravity
Station Salin. S.G.
Chesapeake City 0.6 psu 1.001
Baltimore 10.7 psu 1.009
Lewisetta 13.2 psu 1.011
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Air Gap/Bridge Clearance (above water)
Reedy Point Bridge 136.5 ft Decr.
Ches. City Bridge 139.9 ft Decr.
Francis Scott Key B.. 185.5 ft Incr.
Chesapeake Bay Brdg 187.8 ft Incr.
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Currents (F)lood, (S)lack, (E)bb, towards °T
Reedy Point (pred) 1.3 kn F359.0
Chesapeake City Cur.. 0.2 kn S90.0
Tolch. Front Range 0.3 kn F308.0
Chesapeake Ch LBB 92 0.4 kn F43.0
Cove Point LNG Pier.. *** kn
Potomac R MCh LWB B *** kn
Rapp. Shl Ch LBB 60 *** kn
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**** Data not displayed as a result of missing data or quality control monitoring. For more information, go to, or call CORMS at 301-713-2540.
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