Welcome to the ARPS Home Page!

The Advanced Regional Prediction System
(MPEG movie of the simulation depicted above!)

ARPS won 1997 Discover Magazine Award and
Computerworld Smithsonian Award !

The Advanced Regional Prediction (ARPS) is a comprehensive regional to stormscale atmospheric modeling / prediction system. It is a complete system that includes a realtime data analysis and assimilation system, the forward prediction model and a post-analysis package.

The ARPS was developed at the Center for Analysis and Prediction of Storms (CAPS) at the University of Oklahoma, under the support of the National Science Foundation Science and Technology Center (STC) program.  

The eventual goal of ARPS is for it to serve as a prototype system for storm scale numerical weather prediction. Developing such a system is also the primary mission of CAPS. ARPS is also suitable for a wide range of idealized studies.

ARPS Version 4.0 was officially released in 1995. Since then, significant improvements have been added. Check out the current status of ARPS.

The entire ARPS system is Free! We do welcome feedbacks and appreciate acknowledgment of the use of ARPS and its components.