If an  airport has non-standard IFR alternate minimums information published, you will know by seeing a symbol that looks like a triangle with an 'A' in it on the approach plate in the Notes section.

 

Approach plate notes section showing the 'A' icon

To view the non-standard IFR alternate minimums information, you will need to go to the Airports page > search for the airport > on the Procedures sub-tab, tap on Arrival > and then look for the Alternate minimums line.

 

Airports > Procedures > Arrival > Alternate Minimums

If there is an entry, tap on it and swipe through the pages until you find the airport in question.   

Alternate minimums page