Original sentence: Ongoing damage surveys could increase the tornado's rating to EF5 if sufficient evidence of higher associated wind speeds is found, and could also extend the tornado's track to the east and west.The initial survey confirmed a violent tornado rated as a high-end EF4 with winds up to , tracking at least  across the city
Edited sentence: Ongoing damage surveys increased the tornado's rating to EF5, and could also extend the tornado's track to the east and west.The initial survey confirmed a violent tornado rated as a high-end EF4 with winds up to  but upgraded to EF5 on May 24, tracking at least  across the city