Question
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On your webpage, what is the s in the (-g s/f) term that you multiply nearly LAD by? Also, you get 
the sign of LAD and LDIA from the plots and then multiply those values by the corresponding terms, 
right? Finally, the magnitude calculated using the given percentages is always positive. Do you then 
determine what the final sign is using the plots?

Answer
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The "s" is meant to represent "sigma" and is always positive for the purposes of this project. The
signs of the thermal terms (LTHAD, LAD, LDIA) are determined by taking the values from the maps at
the position of the predicted 1000 hPa level cyclone center location and multiplying by the 
appropriate sign corresponding to "-g/f", giving the final sign and the contribution by the physical 
mechanism to cyclogenesis (overall "+" sign) or cyclolysis (overall "-" sign). Of course, the 
magnitudes of LAD and LDIA are a percentage of the LTHAD magnitude as specified in the final project 
description, but can be either the same or of opposite sign of LTHAD, depending on the sign you
"pick off" of the appropriate map at the predicted 1000 hPa level cyclone center location.