Nickolai Nazarov ← User Feedback Forum for Innovyze Products and Services My feedback 1 result found It would be great to add PMP (probable maximum precipitation) calculator to XPSWMM and XPSTORM 2 votes Vote Vote Vote We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Vote We’ll send you updates on this idea RECEIVED · 0 comments · Storm Sewer & Flood Modeling » Hydrology · Delete… · Admin → Nickolai Nazarov shared this idea · Jun 1, 2020