The baseflow is the slow streamflow component related to groundwater outflows from shallow and deep aquifers. In a context where climate change is increasingly evident, it is crucial to study how it is potentially affected by climate (Longobardi and Van Loon, 2018). Focusing on a water scarcity context, drought effect produces impacts for long periods even beyond its duration and, as they appear after its onset, an effective monitoring system can support the prediction of phenomena with a view to mitigation actions planning (Panu & Sharma, 2002). The research contributes to drought propagation studies, from meteorological to hydrological systems, in the perspective of climate change. The Tanagro river basin is an approximately 660 km2 catchment located in southern Italy, Campania region, featured by a typical mediterranean climate. The Tanagro river freshwater is characterized by a conspicuous spring contribution and is mainly used for irrigation purposes and for the production of energy from renewable sources. Meteorological and hydrological droughts are respectively assessed by the assessment of the Standardized Precipitation Index SPI and the Standardized Groundwater Index SGI, from monthly scale precipitation and discharge for the period 1918-2019 (McKee et al., 1993). A correlation analysis is proposed to assess the lag between meteorological and hydrological drought as well as the drought propagation rate is computed as the ratio between hydrological and meteorological drought events. The results will contribute to a methodological proposal for the quantification of the resilience of hydrological systems to climate change and the possibility for meteorological drought forecasting affecting hydrological systems. The activity falls within the objectives of the WaterWise project “Water Management Strategies and Climate Change Adaptation in Southern Italy” (SPOKE VS1 “Acqua” Project “Multi-Risk sciEnce for resilienT commUnities undeR a changiNg climate - RETURN).