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In this period the geomagnetic storms were mostly moderate, SymH<jats:sub>min<\/jats:sub> \u2248 \u221272 nT, AE<jats:sub>max<\/jats:sub> \u2248 1580 nT, Vsw<jats:sub>max<\/jats:sub> \u2248 690 km\/s and lasted, on average, for 6 days. We analyze the variations in Vertical Total Electron Content (VTEC) at three representative regions: bele, over the equatorial region; boav and cuib, at the northern and southern crests of the Equatorial Ionization Anomaly. Our findings reveal the role of High\u2010Speed Solar Wind Streams and Corotating Interaction Region\u2014driven geomagnetic storms. The VTEC intensifications were up to 30 TECu, during the daytime and nighttime. Additionally, three categories of nighttime enhancements were observed and analyzed with distinct characteristics and levels of pre\u2010reversal strengthening; Depletions up to 20 TECu also occurred during the day and nighttime. The delay between the storm commencement and the positive and negative variations were, on average, 7 and 20 hours, respectively. We discuss the Prompt Penetration Electric Fields and Disturbance Dynamo Electric Fields following the magnetic reconnection between Earth's and interplanetary magnetic field, using observational data and modeling. 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