and a parcel temperature 
in degrees Celsius 
From the user, an environmental temperature
and a parcel temperature
in degrees Celsius
If the user needs to convert the temperatures from degrees Fahrenheit 
,
see the link below:
http://www.srh.noaa.gov/elp/wxcalc/formulas/tempConvert.html
Then, the Showalter Index 
can be calculated using the formula below:
