China (Zhuhai)

Zhuhai Meteorological Bureau, China is currently operating SWIRLS for its nowcasting operation. Some screenshots of SWIRLS nowcast as shown on their systems are shown below:
Actual radar reflectivity at 14:54 on 31 Jan 2018
Forecast radar reflectivity at 16:42 based on actual radar reflectivity at 14:54 on 31 Jan 2018
Actual radar reflectivity at 16:42 on 31 Jan 2018

China (Macao)

HKO currently provides SWIRLS nowcast products and data to Macao Meteorological and Geophysical Bureau to support its operational use.
Use of SWIRLS in Macao Meteorological and Geophysical Bureau


HKO deployed the SWIRLS nowcasting system to support the very-short range rainfall forecast service in Delhi for the XIX Commonwealth Games in 2010. SWIRLS operated for a while after the Games. Recently, India Meteorological Department has been co-operating with HKO on the installation and configuration of Com-SWIRLS for intended operational use with weather radars at Delhi, Chennai and Paradeep.


Malaysia Meteorological Department (MMD) and HKO collaborated on the installation and configuration of SWIRLS in Malaysia. The Malaysian installation of SWIRLS system makes use of radar reflectivity data at a constant height of 2 KM (CAPPI), and also a WRF model that runs 4 times a day and outputs reflectivity at 1 km resolution.
SWIRLS in the MMD has been verified through the November 5 rainstorm event over the Malay Peninsular associated with the passage of Tropical Depression 29W. Verification has been performed through two objective skill scores namely the Probability of Detection (POD) and False Alarm Rate (FAR) described in and the results are illustrated in Figure 1.
Figure 1. The skill score of SWIRLS in the Initial, Mature and Decaying Stages of the Nov 5 2017 Rainstorm
The high WRF resolution and CAPPI data resolution has been exploited through the usage of Google Maps overlay as illustrated in Figure 2.
Figure 2. Nationwide (top), Peninsular (bottom,left), Penang state (bottom,middle), and Georgetown City (bottom, right) with Google Maps
Real-time rainfall nowcast products are available from MMD's website. MMD also provides public nowcast service. Rainfall nowcast are available through their smart phone app myCuaca (iOS, Android)

South Africa

The South African Weather Service (SAWS) has installed and verified the community version of SWIRLS (Com-SWIRLS). The successful implementation of com-SWIRLS plays an important role within the WMO AvRDP project, as the project aims at improving nowcasting techniques for aviation applications and OR Tambo International airport (ORTIA) in Johannesburg, South Africa, was selected as a participating airport.