“Haboob” is one of the various types of dust and sand storms which forms in front of convective cells as a huge wall of dust and sand. The height of this type of dust storm reaches a few kilometers, its horizontal dimension is over a few tens to few hundreds of kilometers. It was the first occurrence of Haboob On June 2, 2014 in Tehran, so it is necessary to pay attention and do research about its structure and simulation.In this research we proceed to simulate this phenomenon via WRF-chem model as a numerical weather and research for forecast purposes. Therefore, Lin schema to micro physics, Grell-Freitas to convection, and MYJ schema to boundary layer were selected for the numerical simulation. With use of their applications, good conclusions were achieved. At first, by defining Haboob, we will examine the synoptic, dynamic and thermodynamic conditions governing the atmosphere while Haboob occurred. Then by running the model, we will compare the output of these simulations with observational data such as radar, recorded data of pollution and meteorological stations for verification and assessment of our simulation. One of the reasonable verification methods respect to radar structure, is the comparison of output of particles density reflection “dBZ” between model output and radar reflection images caused by concentrated suspended particles. The comparison between simulation on second domain of nested grid of the model output and radar images shows satisfaction results. The comparison indicate that the model is able to simulate high density zones of suspended particles in Haboob of Tehran and domain of Haboob occurrence.