Chatham Islands

Valid to Midnight Sunday 22 Jul 2018
Issued at 12:50pm Saturday 21 Jul 2018

Forecast: Northerly 15 knots, rising to 25 knots this afternoon and to 35 knots this evening. Easing to northwest 15 knots Sunday afternoon. Sea becoming very rough for a time. Southwest swell 2 metres.Northerly swell rising to 3 metres for a time. Poor visibility in rain developing Sunday afternoon.

Three Day Outlook: Northwest 15 knots, easing Tuesday variable 10 knots. Developing early Wednesday southerly 20 knots, rising late Wednesday 35 knots with very rough sea. Moderate southwest swell at times.