Marine Coastal Forecasts - Portland
Thursday : Southerly 15 knots, easing to variable 10 knots in the morning. Northwest 15 knots developing in the afternoon. Sea slight. Long period southerly swell rising to 3 metres at times. Easterly swell 1 metre.
Outlook following 3 days: Friday: Northwest rising to 20 knots in the afternoon. Moderate southerly swell easing. Saturday: Northwest 20 knots. Sunday: Northwest rising to 30 knots. Sea becoming rough.