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CAPS · HWT · CASA
CAPS · HWT · CASA
Center for Analysis and Prediction of Storms
National Weather Center
University of Oklahoma
with computing resources provided by the
National Institute for Computational Sciences
OU Supercomputing Center for Education & Research
Using the Advanced Regional Prediction System (ARPS), CAPS produces daily forecasts in support of current and future research. These forecasts are designed to provide verification input to the model development effort.
This site is maintained by Kevin W. Thomas
Your comments, inquiries, problem reports, and suggestions are welcome.
All the new hardware, including a new raid, is now online. Old web files will be slow to return, as files need to be copied to the new raid.
CASA analysis runs continue. Forecasts are turned on when weather is interesting the DFW area.
WARNING - "big animation" on some forecast regions will use a lot of memory, as they are 1500x1500 images. They could cause some systems to get very slow or possibly lock up, requiring a reboot.
Click here to learn about the *Tropical Storm* that affected Oklahoma on August 19th, 2007.
Watch for extra run with names that start with "mesoh" during hurricane season.
CAPS is located in the National Weather Center.
Daily ARPS and WRF forecasts are run on the OSCER supercomputers.
OU Supercomputers have routine maintenance scheduled on Wednesdays from 6am to midnight. On these days, forecasts (if any are scheduled) will be cut short. Maintenance will only be as necessary during the spring experiments. Only emergency maintenance days will occur during the spring experiments.
Bookmarking favorite images, animation loops, and multipanels is possible, though the URL's aren't obviously from the web pages. Please send email (remove underscores) to r_e_a_l_t_i_m_e_@_c_a_p_s_._o_u._e_d_u for more information.
Analysis and forecasts history files are available for ftp in both HDF4 and netCDF format. The data is at ftp://caps.ou.edu/pub/arpsdata. Both HDF4 and netCDF format are supported.
Hourly Analysis Regions:
CONUS20 - CONtinental U.S., 20km grid.
NEUS - NorthEastern U.S. (analysis only), 9km grid.
SPMESO - Southern Plains MESOscale, 9km grid.
MESOH* - Variety of coastal domains only run when hurricane are nearyby.
NOTE - Some regions may be turned off during the spring experiments.
CONUS20 and SPMESO are ready about 30 minutes past the hour, while the the NEUS is ready about 60 minutes past the hour.
Daily Forecastion Regions (non-spring experiment season):
OSCER Supercomputers are a big part of the CAPS forecasts. Thanks go to the OSCER System Admins who work to keep the systems running!
We would like your feedback. Send email (remove underscores) to r_e_a_l_t_i_m_e_@_c_a_p_s_._o_u_._e_d_u. If there is a problem, we would like to know.
Thanks for visiting the CAPS ARPS user web pages.