Noticeable meteorological influences
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Palermo             860/161 RLR(1977) is 11.4m below Pilar SHN No 1
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 01-Oct-1993
End of 1982 and into 1983  flooding occurred in basins of Parana and Urugay rivers. June 1988 unusually strong winds which decreased the height of the astronomic tide causing an unusual low value for MSL.