Something labeled semidiurnal occurs this often
The tides so labeled are seen to be only a few centimetersor 
even a few .... For the semidiurnal tides, this occurs as M2 and S2 constituents 
are in, and... [DOC] [TLE] Tides, Surges and Mean Sea-Level - The University of North ... [PAR] minimum semidiurnal ranges occur when neap tides (quadrature) coincide with 
lunar apogee.