#416 Understanding Swells - Mark Sponsler (Repost) episode artwork

EPISODE · Aug 5, 2026 · 1H 3M

#416 Understanding Swells - Mark Sponsler (Repost)

from The Kyle Thiermann Show · host Kyle Thiermann

Mark Sponsler grew up on an avocado farm outside Miami. One day an avocado ricocheted off his window shutters during a storm, and something clicked. He’s been obsessed with weather ever since. He graduated from Rollins College in 1980 with a degree in Business Administration, then spent years managing software projects for companies like Rockwell International and Lockheed-Martin. Not exactly the resume you’d expect from the guy who predicts Mavericks swells down to the hour. In 1998, Mark launched Stormsurf. It started as an email thread between local surfers. Now it’s the source big-wave surfers actually trust. Stormsurf has consulted on IMAX films, Nightline, 48 Hours, and was the lead forecasting source for the movie Chasing Mavericks. If you dig this podcast, will you please leave a short review on Apple Podcasts? It takes less than 60 seconds and makes a difference when I drop to my knees and beg hard-to-get guests on the show. I read them all. You can watch this podcast on my YouTube channel and join my newsletter on Substack. It’s glorious. My first book, ONE LAST QUESTION BEFORE YOU GO, is available to order today. Get full access to Kyle Thiermann at thiermann.substack.com/subscribe

Episode metadata supplied by the publisher feed · Published Aug 5, 2026

Embed this episode

Ready to play

#416 Understanding Swells - Mark Sponsler (Repost)

0:00 1:03:16

No transcript for this episode yet

We transcribe on demand. Request one and we'll notify you when it's ready — usually under 10 minutes.

No similar episodes found.

No similar podcasts found.

Frequently Asked Questions

How long is this episode of The Kyle Thiermann Show?

This episode is 1 hour and 3 minutes long.

When was this The Kyle Thiermann Show episode published?

This episode was published on August 5, 2026.

Can I download this The Kyle Thiermann Show episode?

Yes. Use the download control on the episode player to save the publisher-provided media file.
URL copied to clipboard!