Welcome to

Armchair Forecaster

A severe weather forecasting platform

Passionate about
severe weather?

So are we! That's why we created Armchair Forecaster. A severe weather forecasting platform that let's you create and verify your own tornado, hail, and wind forecasts. Watch your skills improve throughout the year or compete in our spring forecast contest, the forecast is yours!

What's New?

3/13/25: Announcement: Update to the false alarm penalty function

Undesirable behaviour has recently been identified with the practically perfect method in instances of singular or widely spaced LSRs, which was resulting in harsh penalties of otherwise reasonable forecasts. Checks have been put in place to alleviate this issue. Read more here.