Seasonal northeasterly winds are expected to push temperatures in northern Taiwan to as low as 15°C this week, the Central Weather Administration (CWA) said yesterday.Two waves of seasonal northeasterly winds are expected to reach Taiwan next week with the first arriving today, and the second on Wed. Add TT as Preferred Source Seasonal northeasterly winds are expected to push temperatures in northern Taiwan to as low as 15°C this week, the Central.