Weekly tips, technique and training from IFR.

Features November 2015 Issue

Inside Prog Charts

Below: This Aviation Weather Center prognostic chart is analyzed in the article.

Inside Prog Charts

Prog charts are a staple for many pilots trying to understand the weather ahead. These busy charts provide a vast array of information beyond what many of us might recognize.

Prognostic charts (“progs”) rank among the most used weather charts in aviation. Progs are published four times a day and provide a comprehensive overview of weather across the United States out to 24 hours. They’re found many places, but the source is the NOAA Aviation Weather Center website under Forecasts > Prog Charts > Low Level. There is also a separate chart set under the “Surface” tab that ranges out to 8 days in the future, but there are no precipitation markings after 48 hours.

To continue reading this article you must be a paid subscriber.

Subscribe to IFR Magazine

Get the next year of IFR Magazine for just $19.97. Get access to all articles published online. Features, reviews, lesson, quizzes - get it all.

That's a savings of more than $14 off the regular rate. Or double your savings and subscribe for 14 issues for just $39.94.

Get IFR Digital

Get 12 months of IFR DIGITAL for just $34. You get unlimited access to everything on the site including each monthly issue as a PDF.

Subscriber Log In

Forgot your password? Click Here.

Already subscribe but haven't registered for all the benefits of the website? Click here.