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The generation and development of ionospheric irregularities is an important topic of study in space weather, particularly due to their adverse effects on navigation positioning systems and trans-ionospheric communications. To improve our prediction capabilities, a comprehensive understanding of their variability during different geomagnetic conditions is important. The purpose of this research is to analyze the generation or inhibition of ionospheric irregularities in the F region over South America during geomagnetic storms. To conduct the analysis, we use GOLD OI 135.6 nm radiance maps, ICON IVM ion density and vertical drift, ICON FUV data and ROTI maps. Additionally, we consider ICON MIGHTI wind data (red line emission) to study the role of the neutral wind. We examine the presence of irregularities during three storms: November 3, 2021; January 14, 2022, and February 3, 2022. Two of them (November …