Since 1978, the National Oceanic and Atmospheric Administration (NOAA)/National Ocean Service (NOS) has operated a primary tide station (No.865-1370) at the seaward end of the FRF pier. A NOS acoustic tide gauge (Next Generation Water Level Measurement System, NGWLMS) is used to collect water level data every 6 minutes throughout the month.
Please be aware that the six-minute water level data and hourly ancillary data from the
National Ocean Service - Next Generation Water Level Measurement System (NGWLMS) is direct
from the the unit and has not undergone quality assurance checks. Such data is being
released as preliminary data; It does not meet the criteria and standards of official
National Ocean Service Tidal Data. For more information about the tide data, contact:
National Oceanographic and
Atmospheric Administration
National Ocean Service
N/OESx1, Sta. 8640
1305 East West Hwy.
Silver Spring, Md 20910
The tide data files contain actual tide height, predicted tide height, and the difference
between actual and predicted. If you need to convert to Mean Low Water :
MLW = NGVD - 0.3319m
File Format
year
month
day
Eastern Standard Time
Gauge ID
tide, m from NGVD
predicted tide, m from NGVD
setup,m from NGVD (predicted - tide)
