Simplify the following text for a Grade 7 native English-speaking person.
Original: Extensive coastal flooding occurred along the coast of the Mid-Atlantic and Northeastern U.S. , with effects as far north as Newfoundland and as far south as Jamaica .
Simplified: Severe flooding occurred along the coast of the Mid-Atlantic and Northeastern U.S. and the storm 's effects were felt as far north as Newfoundland .