Bouts of wet weather will frequent the northeastern United States during the last full week of September.
Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday.
Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend.
Ash blanketed parts of Costa Rica this week after the Turrialba volcano erupted while flooding overtook parts of the mid-Atlantic and midwestern U.S.
Karl will pass near Bermuda and lead to increased surf at United States' east coast beaches this weekend.