Releasing 15‑day forecasts and forecast ranges

What happens when a data-obsessed mind that could have been optimizing portfolios decides to optimize powder days instead? This episode features meteorologist and OpenSnow founder Joel Gratz in a deep dive on snow, skiing, and the science of weather forecasting, told through the lens of someone who treats every incoming storm like a market opportunity.

Joel shares how a childhood obsession with snow days in Pennsylvania led to studying meteorology, moving to Boulder, and eventually creating OpenSnow, essentially a Bloomberg Terminal for skiers chasing powder. He explains the real science behind why some mountains get more snow than others, how local wind and terrain effects work, and why long-range seasonal forecasts are about as reliable as a sell-side price target for planning your ski trips.

Joel and Jeff also explore the realities of climate change and snowpack (warmer temperatures vs. largely unchanged long-term precipitation), how subscription passes like Epic and Ikon affect crowd dynamics, think of it as indexing degrading your alpha, and why niche, bootstrapped businesses like OpenSnow can thrive without trying to own all of weather. They get into powder quality, snow-to-liquid ratios, and why Utah sits in a global sweet spot for both depth and fluff, the true asymmetric bet in skiing. Plus: what makes Japan, British Columbia, and Colorado so special for different kinds of ski experiences. The conversation is equal parts nerdy meteorology, entrepreneurial journey, and pure powder stoke.… SEND IT!

Chapters:

00:00-01:52= Intro

01:18-11:06= From Snow-Obsessed Kid to OpenSnow Founder: Joel Gratz’s Origin Story

11:07-24:18= How OpenSnow Helps You Time Powder (and Why 6‑Month Forecasts Don’t Work)

24:19-39:28=Bad Snow Year or Climate Change? Joel Gratz on Drought, Variability, and the Future of Snow

39:29-49:26= Epic, Ikon, and the Powder Problem: Crowds, Passes, and Chasing Better Ski Days

49:27-01:00:25= Utah, Japan, and the Quest for Perfect Powder: Joel Gratz on Global Snow Quality

01:00:26-01:13:24= Dream Lines and Bucket-List Mountains: Joel Gratz on His Favorite Ski Destinations

01:13:25-01:17:46= Ski Movies, Nostalgia, and Parting Powder Wisdom

From the Episode:

Jeff Masters The Derivative Podcast Episode: Super Storms, Mathematical Modeling, and Hurricane Hunting with Dr. Jeff Masters

Meb Faber’s Top Ski resorts - Japan

Citrini Research AI piece: When Skynet Writes a Substack: The AI Doom Piece That Moved Markets








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