Chatham_islands coastal forecast Issued at: 12:54 pm 22 Aug 2007 NZST Valid to: 11:59 pm 23 Aug 2007 NZST Forecast *GALE WARNING IN FORCE* Southwest 35 knots easing to 25 knots early this evening, rising to 40 knots overnight then easing to 25 knots Thursday night. Sea very rough at times. Southwest swell rising to 6 metres for a time. Fair visibility in showers. Outlook Outlook following 3 days: Southwest rising Friday evening to 35 knots. Turning late Saturday northwest 25 knots, then easing late Sunday to westerly 15 knots. Sea becoming very rough Friday, easing Saturday. Heavy southwest swell easing Saturday.