Complex sentence: Hurricane Joan struck Nicaragua as a Category 4 hurricane, which caused about $2 billion in damage (1988 USD, $3.5 billion 2007 USD) and more than 200 deaths; the hurricane crossed into the eastern Pacific Ocean and was reclassified as Tropical Storm Miriam.
Split into simpler sentences: Hurricane Joan struck Nicaragua as a Category 4 hurricane, which caused about $2 billion in damage ($3.5 billion in 2007) and more than 200 deaths. The hurricane crossed into the eastern Pacific Ocean and was reclassified as Tropical Storm Miriam.