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Port Isabel, TXStation ID: 8779770
Station Information

Latitude: 26° 3.6' N Mean Range: 1.15 ft.
Longitude: 97° 12.9' W Diurnal Range: 1.37 ft.
Established: Mar 31 1944
Present Installation: Feb 6 1990
NOAA Chart #: 11301
Time Meridian: 90 W
            
Water Level Station Image for Port Isabel, TX

Data Types Available:

Primary Water Level
Backup Water Level
Wind
Air Temperature
Water Temperature
Barometric Pressure

Station and Bench Mark Drawing

Click HERE for Drawing
(Not for navigational use)

Station Location Chartlet

Click HERE for Map
(Not for navigational use)

EPOCH Update Information:

EPOCH Datum Comparison: Click HERE - check datum differences between the old epoch (1960-1978) and the new epoch (1983-2001)
Superceded Bench Mark Data Sheet: Click HERE - bench mark sheet on the old Tidal Datum Epoch (1960-1978)
Superceded Datums: Click HERE - datums on the old Tidal Datum Epoch (1960-1978)
Mean Sea Level Differences List: Click HERE - mean sea level differences between the two epochs for all stations.
Mean Sea Level Difference:
for 8779770 Port Isabel, TX
1983-20011960-1978Difference:
4.67 ft. 4.36 ft. 0.30 ft.

Location:

To reach the tidal bench marks from the old lighthouse at Port Isabel, proceed west on State Highway 100 for 1.4 km (0.9 mi) to a road leading to Port Isabel Turning Basin. Turn left onto the road and continue south for 1.1 km (0.7 mi) to the Port Isabel Navigation District warehouse. The bench marks are in the vicinity of the warehouse, Port Road, and the Port Isabel High School complex. The tide gage and staff are approximately 24.4 m (80 ft) north of the NE corner of the warehouse.
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