Complex sentence: Despite decreased convective activity, satellite passes indicated sustained winds of 40 mph (65 km/h), as such, the depression was upgraded to a tropical storm around 1200 UTC at which time it was named "Nana".
Split into simpler sentences: Despite decreased convective activity, satellite passes indicated sustained winds of 40 mph (65 km/h). As such, the depression was upgraded to a tropical storm around 1200 UTC at which time it was named "Nana".