A) Clearance at 1423 UT = 4.0m
B) 11 August Victoria Summer time
HW 1303 5.6
LW 1903 0.6
Range = 5.0m therefore a spring tide.
Height of tide at 1423 = 4.9m.
C) Height of the tide at 1423 = 5.0m
LW = 0.6m
Fall of tide = 4.4m
D) Clearance at 1423 = 4.0m
Fall of tide = 4.4m
Clearance at LW = -0.4m!
You will go aground.