Simplify the following text for a Grade 10 native English-speaking person.
Original: On November 2 , wind shear started affecting the storm , and all convection was gone by the next day , when it was located roughly 520 mi ( 840 km ) off the coast of Oregon .
Simplified: On November 2 , wind shear started taking its toll , and all convection was gone by the next day , when it was located roughly 520 mi ( 840 km ) off the coast of Oregon .