Simplify the following text for a Grade 14 native English-speaking person.
Original: After encountering dry air and increased vertical wind shear , Andrea weakened to a subtropical depression on May 10 while remaining nearly stationary , and early on May 11 the National Hurricane Center discontinued advisories .
Simplified: After staying close to the same area , on May 10 , Andrea weakened into a subtropical depression after coming near to dry air and wind shear , and on the next day , the National Hurricane Center stopped looking at the storm and stopped giving out advisories .