Archive for September 26th, 2023

WeatherBrains 923: Perturb The Initial Conditions

WeatherBrains Episode 923 is now online (September 25th, 2023). If you are crazy about weather, this is THE podcast for you!

Tonight’s is a homegrown show that’s all about numerical weather prediction, led by our very own Dr. Neil Jacobs.

Our email officer Jen is continuing to handle the incoming messages from our listeners. Reach us here:

  • Difference between numerical models (05:00)
  • What is a CAM?  (06:45)
  • Models and resolution (19:00)
  • Difference between predictability and accuracy (29:30)
  • Government shutdowns and modeling (38:00)
  • UFS (Unified Forecast System) explained (45:45)
  • STP composite index and it’s uses (54:00)
  • Geopolitics (01:01:00)
  • Tropical/hurricane models and the HAFS (01:11:00)
  • Models/mesonet data relationship (01:14:30)
  • Climate Forecast System and it’s value (01:17:45)
  • Dealing with summertime airmass thunderstorms (01:19:30)
  • The Astronomy Outlook with Tony Rice (01:28:00)
  • This Week in Tornado History With Jen (01:29:10)
  • National Weather Round-Up (01:30:15)
  • E-Mail Segment (01:
  • and more!

Web Sites from Episode 923:


Picks of the Week:

James Aydelott – Alex Spahn on X: Supercell photo near Ada, Oklahoma

Jen Narramore – Foghorn

Rick Smith – Out

Neil Jacobs – Foghorn

Troy Kimmel – Out

Kim Klockow-McClain – Dave Matthews Band “Satellite” Official Video

Bill Murray – Out

James Spann – Trends in U.S. Tornado Damage and Incidence

The WeatherBrains crew includes your host, James Spann, plus other notable geeks like Troy Kimmel, Bill Murray, Rick Smith, James Aydelott, Jen Narramore, Dr. Neil Jacobs, and Dr. Kim Klockow-McClain. They bring together a wealth of weather knowledge and experience for another fascinating podcast about weather.