Station Information

Station ID: 148
Latitude: 39.266667
Longitude: -76.578333
Coastline code: 960
Station code: 81
Time span of data: 1902 – 2023
Completeness (%): 99
Date of last update: 10 Jan 2024

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: SA15, UMBC
Nearby Real Time Stations from VLIZ: bamd

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Baltimore 960/081 RLR(1964) is 8.2m below BM1

Documentation added 1993-07-29

Low values in early 1977 are probably correct - for example, compare to 960/080 Annapolis. These values were flagged but because the data compares well with Annapolis the flags have been removed.

Documentation added 2011-08-22

Using NOAA data the RLR diagram has been updated. Primary benchmark is now 32 1922 3.158m above the gauge datum. The previous benchmark BM1 does not appear in the current NOAA report dated 21.4.2003 or the previous report of 28.3.1988.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910