Tidal Regimes Nab, Warner, OSB (0.7' SW) and Harbour Entrance



Nab Tower   Warner   Outer Spit buoy (7 cables SW)
Time Direction Spring Rate Time Direction Spring Rate Time Direction Spring Rate
-6 085 0.7 -6 122 0.6 -6 089 0.7
-5 078 1.6 -5 129 1.2 -5 115 1.1
-4 078 1.8 -4 129 1.3 -4 117 1.4
-3 065 1.5 -3 114 0.5 -3 109 0.8
-2 048 0.9 -2 335 0.4 -2 033 0.3
-1 345 0.2 -1 314 1.0 -1 327 0.4
HW 282 1.3 HW 311 1.5 HW 292 1.2
+1 265 1.5 +1 311 1.7 +1 293 1.8
+2 252 1.6 +2 313 1.0 +2 288 1.5
+3 236 1.2 +3 168 0.2 +3 231 0.4
+4 218 0.9 +4 149 0.9 +4 152 0.5
+5 193 0.4 +5 141 0.7 +5 131 0.4
+6 095 0.4 +6 111 0.4 +6 080 0.6

Harbour Entrance

The tidal flow at the Harbour Entrance can be considered as a 7 hour FLOOD and a 5 hour EBB.

At Spring tides the maximum FLOOD occurs 1.5 hours before High Water with a rate of 3.4 knots.

The maximum EBB occurs 3 hours after High water with a rate of 4.1 knots.


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