High Quality Content by WIKIPEDIA articles! Tropical Storm Matthew was a weak tropical storm in the 2004 Atlantic hurricane season that made landfall on Louisiana. Matthew was the thirteenth tropical storm of the season and the ninth storm to affect the United States. Matthew formed over the western Gulf of Mexico on October 8 and struck south-central Louisiana two days later. The combination of this storm and an upper cyclone over the southern Plains brought heavy rains to much of the Gulf Coast, with the highest amounts reported lying over 15 inches (381 mm) in northern Louisiana. Damage was minimal, totaling $305,000 (2004 USD), and no casualties were reported.