The Weather Research and Forecasting Model Version (WRFV) 4.0, Microphysics=New Thompson, et.al (8), Longwave Radiation=RRTMG scheme (4), Shortwave Radiation=RRTMG scheme (4), Land Surface=Noah Land Surface Model (2), Planetary Boundary layer=Yonsei University scheme (1), Cumulus Parameterization=Grell-Freitas (3), Model Vertical Levels=34

Initialization Strategy

forecast_strat

The current UTC time is:

Forecasts

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Precipitation || Radar || Maximum Wind Gust || CAPE || LFC || Cloud Fraction || Temperature

Soundings

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mafikeng gaberone polokwane beira lusaka harare bulawayo maputu mbabane irene bethlehem maseru bloemfontein upington durban deaar portelizabeth capetown springbok alexander ghanzi luderitz goageb windhoek rundu sutherland matamata francistown maun livingstone sesfontein

South-Africa

Alexandria || Bethlehem || Bloemfontein || Cape Town || De-Aar || Durban || Irene || Upington || Mafikeng || Polokwane || Port Elizabeth || Springbok || Sutherland || Mata-Mata

Namibia

Windhoek || Rundu || Luderitz || Goageb || Rundu || Sesfontein

Botswana

Gaberone || Ghanzi || Francistown || Maun

Zimbabwe

Harare || Bulawayo

Mozambique

Maputu || Beira

Zambia

Lusaka || Livingstone

Lesotho and Swaziland

Maseru || Mbabane

Practical considerations and limitations

  • The model is initialized using publicly available GFS data. The GFS forecasts are also viewable here
  • The model requires spin-up time to become numerically stable, the first hour of the forecast should be discarded
  • For observed Skew-T diagrams please visit the University of Wyoming Upper-Air Database
  • Customized forecast products is available on request
  • Please note that SAWS is the only entity in South-Africa which can issue weather related warnings