Checking cells for a certain value, then returning the name of the column when it is found

Alright,

Let me see if I can articulate what I am trying to do. I have attached an excel file that shows what I am trying to accomplish. Basically, I would like to identify the columns that have a certain value (ie, greater than 15). If the value of the cell in column A on row 2 is greater than 15, then provide the name of the column in a cell that summaries all the columns that have a value greater than 15.

Good lord, I hope that made sense.

Please see the excel file example.

Thanks for any help!