In this study, the first layer of soil moisture of the GFS data is substituted with the SMOPS data, which combines soil moisture retrievals from multi-satellites/sensors, to initiate the WRF model. Evaluations have been performed using the daily accumulated precipitation output from the WRF initiated only with the GFS data (WRF-GFS) and the WRF initiated with soil moisture from the SMOPS data instead of the first layer of GFS (WRF-SMOPS), for many thresholds. Investigating different verification quantities using gauge precipitation as reference showed the close performance of the two runs. However, some of these quantities have shown little improvement in the performance of 72-h forecast of the WRF-SMOPS compared to the WRF-GFS, which seems the compatibility of the SMOPS data with the WRF have been increased over time; therefore it is necessary to use proper spin-up time. Given that the GFS data used in this study are 6-hourly data, whereas the SMOPS data are on a daily basis, it is expected that the performance of the WRF model would be improved by using 6-hourly data of the SMOPS product.