The community version of SWIRLS, or Com-SWIRLS, is developed to facilitate collaborative development and knowledge exchange of rainstorm nowcasting techniques.

Com-SWIRLS can be available for use by the National Meteorological and Hydrological Services (NMHSs) upon request. To request or for any enquiry, please send an e-mail to swirls@hko.gov.hk. More information on registration, access to Com-SWIRLS software codes, documentation and reference can be available from this website.