Q.My mother’s lawn appears to have been attacked by something. The change happened overnight
I would be interested in opinions as to the cause
Moles, skunks and raccoons will dig and disturb grassy areas. Skunks and raccoons are looking for grubs and other foods. Sometimes, signs of digging mean there is a grub problem that should be treated in the spring with GrubEx or other appropriate pesticide. For now, walk the lawn to try to tamp down the disturbed areas and get roots back in touch with soil. Here is more information on lawn skunks, raccoons and moles and what to do about them: https://www.canr.msu.edu/news/reduce_lawn_and_garden_damage_caused_by_moles_skunks_and_raccoons