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Current Conditions in Norman, OK - Temperature: 45.5F - Humidity: 94% - Pressure: 29.93in 8:10 am CDT Mar 21

A NOAA - UNIVERSITY OF OKLAHOMA COOPERATIVE INSTITUTE

The Cooperative Institute for Severe and High-Impact Weather Research and Operations (CIWRO), formerly known as the Cooperative Institute for Mesoscale Meteorological Studies (CIMMS), is a research organization formed in 1978 by a cooperative agreement between the National Oceanic and Atmospheric Administration and the University of Oklahoma.

CIWRO News

Posted - February 20, 2023

Scientists expand PERiLS tornado study for second year of research

Hundreds of research scientists from across the country will track severe storms this spring in an attempt to better understand how prominent tornadoes in the southeastern United States form. PERiLS (Propagation, Evolution and Rotation in Linear Storms) is one of the largest and most comprehensive field studies of its kind, examining the conditions before, during and after quasi-linear convective storms – ...
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Posted - December 05, 2022

OU Engineers Offer Glimpse Into Future with State-of-the-Art Radar Technology

An estimated quarter-million lines of code were required for computer-generated imagery in the movie “Twister,” giving audiences a big-screen view of simulated tornadoes. But that’s only a fraction of the technology required to track the real storms. University of Oklahoma radar engineers have already created approximately 1.8 million lines of code to operate the most advanced weather radar in ...
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Posted - November 07, 2022

Connecting Data to Phenomena Drives Radar Researcher to Investigate Winter Weather Hazards

On warm, sunny days, Jacob Carlin can be found creating his own severe weather – radar simulations of winter storms that help forecasters make short-term predictions about what can't be seen inside a storm. Carlin analyzes dual-polarization radar data as a research scientist at the Cooperative Institute for Severe and High-Impact Weather Research and Operations (CIWRO) at the University of Oklahoma. By studying ...
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Accessbility Statement

In the developing of this web application, the Cooperative Institute has thoroughly prioritized accessibility. If you find that any feature of the application is difficult to use or inaccessible to you, please contact us at the information listed in our contact page. We will strive to fix any issue that arises, and we will continue furthering the accessbility of our site to uphold the Web Content Accessibility Guidelines (WCAG) in our product. In the future, we hope to achieve a level of AA conformance to the WCAG and are currently working towards that goal. Additionally, it is required that we provide a link to the University of Oklahoma's Web Accessibility Statement for all to be able to view from our site. The statement and related Univesity guidelines for accessbility can be found at https://ou.edu/marcomm/accessstatement.