Savannah Lightship (Figure 17, Table 17) 
Surface temperatures from January through July were in general 
slightly above the mean and above those for 1956. The summer maximum 
occurred in mid-August and was followed by a sharp decline of about 4 
degrees. Temperatures during the six weeks from mid-September through 
October stayed above the mean, after which readings fell below. As in 
1956, the water column stayed very nearly isothermal throughout the year. 
Minimum temperatures probably occurred at the end of December 
(observations for the last 10 days are missing) and were probably several 
degrees warmer than the 1956 minimm. The maximum of greater than 84°R. 
coincides with that of 1956 both in time and temperature. 
surface salinity shows a minimum (10 day means) of 31.6 °/oo 
at the end of April and a maximum of 35.2 °/oo in mid-ganuary. The 1956 
surface minimum and maximum respectively were 33.2 °/oo and 35.9 °/oo. 
It is apparent that there was appreciably more rainfall and runoff in 
1957 than in the previous year. 
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