National Hurricane Center 
Storm Surge Unit
1981 Gulf Steam Analysis Data

January       1981
February     1981
March          1981
April             1981
May              1981
June             1981     
July               1981
August         1981
November   1981
December   1981

Image below from NOAA Ocean Service Education, Gulf Steam Current webpage 8/17/2015 : http://oceanservice.noaa.gov/education/kits/currents/media/supp_cur05d.html