Valid to Midnight Thursday 29 Jun 2017
Issued at 5:31pm Wednesday 28 Jun 2017

Warning: NIL warning for CONWAY

Situation: A weak ridge lies over the country, while a weakening trough lies to the west. A low approaches New Zealand from the Tasman Sea late on Thursday, affecting the country from Friday.

Forecast: Wednesday: Variable 5 knots. Sea slight. Fine spells. Thursday: Northeast 10 knots developing in the morning, and rising to 15 knots in the evening. Sea slight. Fine spells.

Outlook: Outlook until midnight Sunday: Friday: Northeast rising to 20 knots. High cloud, late rain. Saturday: Northeast rising to 30 knots. Periods of rain. Sunday: Changing southwest 15 knots. Rain to showers.

Swell: Swell forecast to midnight Sunday: Easterly 1.5 metres, easing to 1 metre Thursday, then rising to 1.5 metres late Saturday and to 2 metres for a time Sunday.

High tide at Lyttelton
8:49am Thu 29 Jun - Height: 2.4m
9:11pm Thu 29 Jun - Height: 2.5m

Low tide at Lyttelton
2:32am Thu 29 Jun - Height: 0.3m
2:55pm Thu 29 Jun - Height: 0.4m