Typhoon In-fa is expected to pass through the far northern CNMI somewhere between just north of Saipan to as far north as Maug island sometime on Friday. Winds and seas will sharply increase late Thursday ahead of the approaching typhoon, quickly exceeding hazardous levels to small craft by early Friday morning, with seas peaking at 12 to 16 feet. Seas up to 20 feet remain possible if In-fa takes a southern track. Mariners are urged to take precautions and remain weather aware over the coming days.