Simplify the following text for a Grade 11 native English-speaking person.
Original: A small hurricane , it reached an estimated Category 3-4 strength before making landfall on July 27 in southeastern Louisiana , bringing heavy winds and a 5 â `` 6 ft storm surge .
Simplified: A small hurricane , it reached an estimated Category 3-4 strength before making landfall on July 27 in southeastern Louisiana , bringing heavy winds and a 5-6ft storm surge .