Storm Therese is expected to bring rain, thunderstorms, and winds up to 65 km/h to Portugal, particularly affecting the Centre and South regions, including the Algarve, from March 17 to 21. The storm will cause increased cloud cover, heavy showers, and rough seas with waves up to four meters along the western coast. Winds will shift between easterly and southerly directions, intensifying at times. However, the storm's exact impact remains uncertain, and no weather warnings have been issued yet. Overall, Therese is less severe than the February flurries previously experienced.