Valid to Midnight Friday 18 Aug 2017
Issued at 11:17am Thursday 17 Aug 2017

Warning: STORM warning for COOK GALE warning for STEPHENS

Situation: An active front moves east across New Zealand today. A complex trough moves onto the country during Saturday, then moves north onto the upper North Island during Sunday, while a southerly flow covers the South Island and central New Zealand.

Forecast: Gale warning. Thursday: Northerly 30 knots gusting 40 knots but 35 knots gusting 45 knots south of Otaki, easing to northwest 20 knots everywhere this afternoon and to 15 knots this evening. Very rough sea in the south, easing this afternoon. Poor visibility in periods of rain, easing this afternoon. Friday: Northwest 15 knots, turning northeast 10 knots but 15 knots in the south in the morning, then easing to variable 5 knots everywhere early evening. Sea slight. Possible morning drizzle, then increasing fine spells.

Outlook: Outlook until midnight Monday: Saturday: Variable 5 knots, becoming southerly 10 knots late. Rain at times. Sunday: Southerly rising to 20 knots in the morning. Showers. Monday: Southerly 15 knots. Cloudy periods, odd shower.

Swell: Swell forecast to midnight Monday: Northwest 3 metres easing to 1 metre Friday, and to half a metre or less Saturday.

High tide at Waikanae River Entrance
5:39pm Thu 17 Aug - Height: 1.5m
6:05am Fri 18 Aug - Height: 1.5m

Low tide at Waikanae River Entrance
11:54pm Thu 17 Aug - Height: 0.3m
12:25pm Fri 18 Aug - Height: 0.2m