User list of Com-SWIRLS

National Meteorological and Hydrological Services (NMHS) of the following countries/regions are exploring Com-SWIRLS:

  Country/Region   Organization
  Argentina   Servicio Meteorológico Nacional
  Australia   Bureau of Meteorology
  Austria   Zentralanstalt fur Meteorologie und Geodynamik
  Bangladesh   Bangladesh Meteorological Department
  Brazil   Instituto Nacional de Meteorologia
  China   China Meteorological Administration
  Colombia   Institute of Hydrology, Meteorology and Environmental Studies
  Comoros   Agence Nationale de l'Aviation Civile et de la Météorologie
  Costa Rica   Instituto Meteorológico Nacional
  Curaçao   Meteorological Department Curaçao
  Egypt   The Egypt Meteorological Authority
  Fiji   Fiji Meteorological Service
  Georgia   The National Environment Agency
  India   Indian Meteorological Department
  Indonesia   Meteorological, Climatological and Geophysical Agency
  Ireland   The Irish Meteorological Service
  Jordan   Jordan Meteorological Department
  Lao PDR   Department of Meteorology and Hydrology
  Madagascar   Meteo Madagascar
  Malaysia   Malaysian Meteorological Department
  Maldives   Maldives Meteorological Service
  Macao, China   Meteorological and Geophysical Bureau
  Mauritius   Mauritius Meteorological Services
  Myanmar   Department of Meteorological and Hydrology
  New Zealand   Meteorological Service of New Zealand Limited
  Norway   Norwegian Meteorological Institute
  Peru   Peruvian National Weather and Hydrological Service
  Philippines   Philippine Atmospheric, Geophysical and Astronomical Services
  Samoa   Ministry of Natural Resources and Environment
  Saudi Arabia   Presidency of Meteorology and Environment
  Singapore   Meteorological Service Singapore
  South Africa   South Africa Weather Services
  South Korea   Korea Meteorological Administration
  Spain   Agencia Estatal de Meteorología
  Sri Lanka   Department of Meteorology of Sri Lanka
  Switzerland   Federal Office of Meteorology and Climatology MeteoSwiss
  Tajikistan   Agency for hydrometeorology
  Thailand   Thai Meteorological Department
  Turkey   Turkish State Meteorological Service
  Uganda   Uganda National Meteorological Authority
  U.S.A.   National Oceanic and Atmospheric Administration
  Vietnam   Vietnam Meteorological and Hydrological Administration

China (Zhuhai)

Zhuhai Meteorological Bureau, China shares more images of its nowcasting operation. Screenshot and animation as shown on their system are shown below:
1 hour quantitative precipitation forecast (QPF) at 22:18 on 27 Mar 2020
3-hour forecast radar reflectivity based on actual radar reflectivity at 22:30 on 27 Mar 2020
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
eal-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.