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John here some sources for previous meteorological data for your
region (Chatham, MA):

Station data (e.g. of airport):

http://www.wunderground.com/cgi-bin/findweather/getForecast?query=Chatham,%20Massachusetts&wuSelect=WEATHER
If you scroll down this page you may eventually find one which is even
nearer to you. In order to find the values of a previous date scroll
down this page and look on the left side for the title "Detailed
History and Climate". Here you can enter the date of interest. This
will show you all the measurements of that day made by the selected
station.

Atmospheric profile (sounding data):
http://weather.uwyo.edu/upperair/sounding.html
The soundings are made twice a day at 00Z and 12Z. Some stations do
sometimes also two additional ones at 06Z and 18Z. The nearest one to
you is again at Chatham. Select on the above Web-page the time period
(date and soundings) and enter the station number 74494 or only its
code "CHH". The measurements are then shown in a new Web-page. The
lowest values give you some indication of the temperature gradient at
the surface. The values for 16m corresponds to the station height.
(Since in the lowest few tenths of meters above the surface the
temperature profile is generally logarithmic, the estimated linear
gradient is only a gross indication.)

Sea Surface Temperature:
The best I could find so far for your area is here
http://www7320.nrlssc.navy.mil/global_nlom32/ Select here "Atlantic
Ocean" and then "Gulf Stream Region". Open on this new page under "SST
Nowcast" the "Snapshot archive" and select then your date. The figure
shows your region. Since the values for the coastal areas are not
shown, it can only give you a gross idea. There may eventually be
better sources for SST data.

Hopefully this helps you to find more information on the actual
conditions of your inferior mirage photo.

Marcel

   

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