Complex sentence: Andrea was the first pre-season storm to develop since Tropical Storm Ana in April 2003 and was the first Atlantic named storm in May since Tropical Storm Arlene in 1981.
Split into simpler sentences: Andrea was the first pre-season storm to develop since Tropical Storm Ana in April 2003. Additionally, the storm was the first Atlantic named storm in May since Tropical Storm Arlene in 1981.